[INFO] cloning repository https://github.com/topazus/head-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/topazus/head-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftopazus%2Fhead-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftopazus%2Fhead-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 72a5e54655e37028b384063e116cc2097eee5ed3
[INFO] testing topazus/head-rs against 1.83.0 for beta-1.84.0-4-retry
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftopazus%2Fhead-rs" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/topazus/head-rs on toolchain 1.83.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/topazus/head-rs
[INFO] finished tweaking git repo https://github.com/topazus/head-rs
[INFO] tweaked toml for git repo https://github.com/topazus/head-rs written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/topazus/head-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 28652bbff7d31789a3149377e738981c5a401461643cc51563d327d4630b27a3
[INFO] running `Command { std: "docker" "start" "-a" "28652bbff7d31789a3149377e738981c5a401461643cc51563d327d4630b27a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "28652bbff7d31789a3149377e738981c5a401461643cc51563d327d4630b27a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28652bbff7d31789a3149377e738981c5a401461643cc51563d327d4630b27a3", kill_on_drop: false }`
[INFO] [stdout] 28652bbff7d31789a3149377e738981c5a401461643cc51563d327d4630b27a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 53107000a8cfd3e62925cbd2115d8b35f7dbde188b07256458affbc84d842b7c
[INFO] running `Command { std: "docker" "start" "-a" "53107000a8cfd3e62925cbd2115d8b35f7dbde188b07256458affbc84d842b7c", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.124
[INFO] [stderr]    Compiling os_str_bytes v6.0.0
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling textwrap v0.15.0
[INFO] [stderr]    Compiling clap_lex v0.1.1
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v3.1.12
[INFO] [stderr]    Compiling headr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `files_str`
[INFO] [stdout]   --> src/lib.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let files_str = matches.values_of("files").unwrap().collect::<Vec<&str>>();
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_files_str`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `files_string`
[INFO] [stdout]   --> src/lib.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let files_string = matches
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_files_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:216:9
[INFO] [stdout]     |
[INFO] [stdout] 216 |     let mut file = std::fs::File::open("Cargo.toml").unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes_read`
[INFO] [stdout]    --> src/lib.rs:226:9
[INFO] [stdout]     |
[INFO] [stdout] 226 |     let bytes_read = file.read_to_string(&mut contents).unwrap();
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes_read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/lib.rs:232:13
[INFO] [stdout]     |
[INFO] [stdout] 232 |     let mut buf = String::new();
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:231:9
[INFO] [stdout]     |
[INFO] [stdout] 231 |     let mut file = std::fs::File::open("Cargo.toml").unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:232:9
[INFO] [stdout]     |
[INFO] [stdout] 232 |     let mut buf = String::new();
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_args` is never used
[INFO] [stdout]   --> src/lib.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn parse_args() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_lines_file` is never used
[INFO] [stdout]    --> src/lib.rs:173:4
[INFO] [stdout]     |
[INFO] [stdout] 173 | fn read_lines_file(file_name: &str) -> Vec<String> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_lines_file2` is never used
[INFO] [stdout]    --> src/lib.rs:183:4
[INFO] [stdout]     |
[INFO] [stdout] 183 | fn read_lines_file2(file_name: &str) -> Result<Vec<String>, Box<dyn Error>> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_bytes_from_file` is never used
[INFO] [stdout]    --> src/lib.rs:215:4
[INFO] [stdout]     |
[INFO] [stdout] 215 | fn read_bytes_from_file(bytes: usize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_bytes_from_file2` is never used
[INFO] [stdout]    --> src/lib.rs:223:4
[INFO] [stdout]     |
[INFO] [stdout] 223 | fn read_bytes_from_file2(bytes: usize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_bytes_from_file3` is never used
[INFO] [stdout]    --> src/lib.rs:230:4
[INFO] [stdout]     |
[INFO] [stdout] 230 | fn read_bytes_from_file3(bytes: usize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_positive_int2` is never used
[INFO] [stdout]    --> src/lib.rs:264:4
[INFO] [stdout]     |
[INFO] [stdout] 264 | fn parse_positive_int2(val: &str) -> Result<isize, &str> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_positive_int3` is never used
[INFO] [stdout]    --> src/lib.rs:270:4
[INFO] [stdout]     |
[INFO] [stdout] 270 | fn parse_positive_int3(val: &str) -> Result<isize, &str> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.92s
[INFO] running `Command { std: "docker" "inspect" "53107000a8cfd3e62925cbd2115d8b35f7dbde188b07256458affbc84d842b7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53107000a8cfd3e62925cbd2115d8b35f7dbde188b07256458affbc84d842b7c", kill_on_drop: false }`
[INFO] [stdout] 53107000a8cfd3e62925cbd2115d8b35f7dbde188b07256458affbc84d842b7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8d674c5fbb95f8fc9f1ded181b3ae07f4ae3d9bf08dba94db6d108f39711a7a
[INFO] running `Command { std: "docker" "start" "-a" "b8d674c5fbb95f8fc9f1ded181b3ae07f4ae3d9bf08dba94db6d108f39711a7a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.124
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling predicates-core v1.0.3
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling normalize-line-endings v0.3.0
[INFO] [stderr]    Compiling termtree v0.2.4
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling difflib v0.4.0
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling predicates-tree v1.0.5
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling clap v3.1.12
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling float-cmp v0.9.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling headr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling predicates v2.1.1
[INFO] [stdout] warning: unused variable: `files_str`
[INFO] [stdout]   --> src/lib.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let files_str = matches.values_of("files").unwrap().collect::<Vec<&str>>();
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_files_str`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `files_string`
[INFO] [stdout]   --> src/lib.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let files_string = matches
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_files_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:216:9
[INFO] [stdout]     |
[INFO] [stdout] 216 |     let mut file = std::fs::File::open("Cargo.toml").unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes_read`
[INFO] [stdout]    --> src/lib.rs:226:9
[INFO] [stdout]     |
[INFO] [stdout] 226 |     let bytes_read = file.read_to_string(&mut contents).unwrap();
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes_read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/lib.rs:232:13
[INFO] [stdout]     |
[INFO] [stdout] 232 |     let mut buf = String::new();
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:231:9
[INFO] [stdout]     |
[INFO] [stdout] 231 |     let mut file = std::fs::File::open("Cargo.toml").unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:232:9
[INFO] [stdout]     |
[INFO] [stdout] 232 |     let mut buf = String::new();
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_args` is never used
[INFO] [stdout]   --> src/lib.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn parse_args() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_lines_file` is never used
[INFO] [stdout]    --> src/lib.rs:173:4
[INFO] [stdout]     |
[INFO] [stdout] 173 | fn read_lines_file(file_name: &str) -> Vec<String> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_lines_file2` is never used
[INFO] [stdout]    --> src/lib.rs:183:4
[INFO] [stdout]     |
[INFO] [stdout] 183 | fn read_lines_file2(file_name: &str) -> Result<Vec<String>, Box<dyn Error>> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_bytes_from_file` is never used
[INFO] [stdout]    --> src/lib.rs:215:4
[INFO] [stdout]     |
[INFO] [stdout] 215 | fn read_bytes_from_file(bytes: usize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_bytes_from_file2` is never used
[INFO] [stdout]    --> src/lib.rs:223:4
[INFO] [stdout]     |
[INFO] [stdout] 223 | fn read_bytes_from_file2(bytes: usize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_bytes_from_file3` is never used
[INFO] [stdout]    --> src/lib.rs:230:4
[INFO] [stdout]     |
[INFO] [stdout] 230 | fn read_bytes_from_file3(bytes: usize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_positive_int2` is never used
[INFO] [stdout]    --> src/lib.rs:264:4
[INFO] [stdout]     |
[INFO] [stdout] 264 | fn parse_positive_int2(val: &str) -> Result<isize, &str> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_positive_int3` is never used
[INFO] [stdout]    --> src/lib.rs:270:4
[INFO] [stdout]     |
[INFO] [stdout] 270 | fn parse_positive_int3(val: &str) -> Result<isize, &str> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling assert_cmd v2.0.4
[INFO] [stdout] warning: unused variable: `files_str`
[INFO] [stdout]   --> src/lib.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let files_str = matches.values_of("files").unwrap().collect::<Vec<&str>>();
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_files_str`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `files_string`
[INFO] [stdout]   --> src/lib.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let files_string = matches
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_files_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:216:9
[INFO] [stdout]     |
[INFO] [stdout] 216 |     let mut file = std::fs::File::open("Cargo.toml").unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes_read`
[INFO] [stdout]    --> src/lib.rs:226:9
[INFO] [stdout]     |
[INFO] [stdout] 226 |     let bytes_read = file.read_to_string(&mut contents).unwrap();
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes_read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/lib.rs:232:13
[INFO] [stdout]     |
[INFO] [stdout] 232 |     let mut buf = String::new();
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:231:9
[INFO] [stdout]     |
[INFO] [stdout] 231 |     let mut file = std::fs::File::open("Cargo.toml").unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:232:9
[INFO] [stdout]     |
[INFO] [stdout] 232 |     let mut buf = String::new();
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_args` is never used
[INFO] [stdout]   --> src/lib.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn parse_args() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_bytes_from_file` is never used
[INFO] [stdout]    --> src/lib.rs:215:4
[INFO] [stdout]     |
[INFO] [stdout] 215 | fn read_bytes_from_file(bytes: usize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_bytes_from_file2` is never used
[INFO] [stdout]    --> src/lib.rs:223:4
[INFO] [stdout]     |
[INFO] [stdout] 223 | fn read_bytes_from_file2(bytes: usize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_bytes_from_file3` is never used
[INFO] [stdout]    --> src/lib.rs:230:4
[INFO] [stdout]     |
[INFO] [stdout] 230 | fn read_bytes_from_file3(bytes: usize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 14.79s
[INFO] running `Command { std: "docker" "inspect" "b8d674c5fbb95f8fc9f1ded181b3ae07f4ae3d9bf08dba94db6d108f39711a7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8d674c5fbb95f8fc9f1ded181b3ae07f4ae3d9bf08dba94db6d108f39711a7a", kill_on_drop: false }`
[INFO] [stdout] b8d674c5fbb95f8fc9f1ded181b3ae07f4ae3d9bf08dba94db6d108f39711a7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0bf7b45a6a468c80d2c203056b6fdf0ebbeff74035f94a0f3cfe3085ea7dd1a5
[INFO] running `Command { std: "docker" "start" "-a" "0bf7b45a6a468c80d2c203056b6fdf0ebbeff74035f94a0f3cfe3085ea7dd1a5", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `files_str`
[INFO] [stderr]   --> src/lib.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |     let files_str = matches.values_of("files").unwrap().collect::<Vec<&str>>();
[INFO] [stderr]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_files_str`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `files_string`
[INFO] [stderr]   --> src/lib.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     let files_string = matches
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_files_string`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:216:9
[INFO] [stderr]     |
[INFO] [stderr] 216 |     let mut file = std::fs::File::open("Cargo.toml").unwrap();
[INFO] [stderr]     |         ----^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bytes_read`
[INFO] [stderr]    --> src/lib.rs:226:9
[INFO] [stderr]     |
[INFO] [stderr] 226 |     let bytes_read = file.read_to_string(&mut contents).unwrap();
[INFO] [stderr]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes_read`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buf`
[INFO] [stderr]    --> src/lib.rs:232:13
[INFO] [stderr]     |
[INFO] [stderr] 232 |     let mut buf = String::new();
[INFO] [stderr]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:231:9
[INFO] [stderr]     |
[INFO] [stderr] 231 |     let mut file = std::fs::File::open("Cargo.toml").unwrap();
[INFO] [stderr]     |         ----^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:232:9
[INFO] [stderr]     |
[INFO] [stderr] 232 |     let mut buf = String::new();
[INFO] [stderr]     |         ----^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function `parse_args` is never used
[INFO] [stderr]   --> src/lib.rs:18:4
[INFO] [stderr]    |
[INFO] [stderr] 18 | fn parse_args() {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `read_lines_file` is never used
[INFO] [stderr]    --> src/lib.rs:173:4
[INFO] [stderr]     |
[INFO] [stderr] 173 | fn read_lines_file(file_name: &str) -> Vec<String> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `read_lines_file2` is never used
[INFO] [stderr]    --> src/lib.rs:183:4
[INFO] [stderr]     |
[INFO] [stderr] 183 | fn read_lines_file2(file_name: &str) -> Result<Vec<String>, Box<dyn Error>> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `read_bytes_from_file` is never used
[INFO] [stderr]    --> src/lib.rs:215:4
[INFO] [stderr]     |
[INFO] [stderr] 215 | fn read_bytes_from_file(bytes: usize) {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `read_bytes_from_file2` is never used
[INFO] [stderr]    --> src/lib.rs:223:4
[INFO] [stderr]     |
[INFO] [stderr] 223 | fn read_bytes_from_file2(bytes: usize) {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `read_bytes_from_file3` is never used
[INFO] [stderr]    --> src/lib.rs:230:4
[INFO] [stderr]     |
[INFO] [stderr] 230 | fn read_bytes_from_file3(bytes: usize) {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `parse_positive_int2` is never used
[INFO] [stderr]    --> src/lib.rs:264:4
[INFO] [stderr]     |
[INFO] [stderr] 264 | fn parse_positive_int2(val: &str) -> Result<isize, &str> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `parse_positive_int3` is never used
[INFO] [stderr]    --> src/lib.rs:270:4
[INFO] [stderr]     |
[INFO] [stderr] 270 | fn parse_positive_int3(val: &str) -> Result<isize, &str> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `headr` (lib) generated 15 warnings (run `cargo fix --lib -p headr` to apply 3 suggestions)
[INFO] [stderr] warning: `headr` (lib test) generated 11 warnings (11 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/headr-b8f447c75530a4cd)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test_parse_positive_int3 ... ok
[INFO] [stdout] test test_parse_positive_int ... ok
[INFO] [stdout] test test_parse_positive_int2 ... ok
[INFO] [stdout] test test_read_lines_file ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/headr-24070d2f34060efe)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stderr]      Running tests/cli.rs (/opt/rustwide/target/debug/deps/cli-55e414ad0e521a3b)
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test long_flag ... ok
[INFO] [stdout] test test_random_string ... ok
[INFO] [stdout] test test_bad_bytes ... ok
[INFO] [stdout] test test_bad_lines ... ok
[INFO] [stdout] test test_empty ... FAILED
[INFO] [stdout] test read_lines ... FAILED
[INFO] [stdout] test read_lines_from_files ... FAILED
[INFO] [stdout] test test_bytes ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- test_empty stdout ----
[INFO] [stdout] thread 'test_empty' panicked at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5:
[INFO] [stdout] Unexpected failure.
[INFO] [stdout] code-101
[INFO] [stdout] stderr=```"thread \'main\' panicked at src/lib.rs:88:10:\nMust use `_os` lookups with `Arg::allow_invalid_utf8` at `lines`\nstack backtrace:\n   0:     0x5d3e26236f1a - std::backtrace_rs::backtrace::libunwind::trace::h5a5b8284f2d0c266\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5\n   1:     0x5d3e26236f1a - std::backtrace_rs::backtrace::trace_unsynchronized::h76d4f1c9b0b875e3\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5\n   2:     0x5d3e26236f1a - std::sys::backtrace::_print_fmt::hc4546b8364a537c6\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:66:9\n   3:     0x5d3e26236f1a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h5b6bd5631a6d1f6b\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:39:26\n   4:     0x5d3e262544a3 - core::fmt::rt::Argument::fmt::h270f6602a2b96f62\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/rt.rs:177:76\n   5:     0x5d3e262544a3 - core::fmt::write::h7550c97b06c86515\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/mod.rs:1186:21\n   6:     0x5d3e26234323 - std::io::Write::write_fmt::h7b09c64fe0be9c84\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/io/mod.rs:1839:15\n   7:     0x5d3e26236d62 - std::sys::backtrace::BacktraceLock::print::h2395ccd2c84ba3aa\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:42:9\n   8:     0x5d3e26237d0c - std::panicking::default_hook::{{closure}}::he19d4c7230e07961\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:268:22\n   9:     0x5d3e26237b52 - std::panicking::default_hook::hf614597d3c67bbdb\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:295:9\n  10:     0x5d3e262382e7 - std::panicking::rust_panic_with_hook::h8942133a8b252070\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:801:13\n  11:     0x5d3e2623817a - std::panicking::begin_panic_handler::{{closure}}::hb5f5963570096b29\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:674:13\n  12:     0x5d3e262373f9 - std::sys::backtrace::__rust_end_short_backtrace::h6208cedc1922feda\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:170:18\n  13:     0x5d3e26237e0c - rust_begin_unwind\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:665:5\n  14:     0x5d3e260dc5a0 - core::panicking::panic_fmt::h0c3082644d1bf418\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panicking.rs:74:14\n  15:     0x5d3e260e0e0b - clap::parse::matches::arg_matches::assert_utf8_validation::hdc9ac5cf50a24dae\n                               at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/clap-3.1.12/src/parse/matches/arg_matches.rs:1408:5\n  16:     0x5d3e260e0ba1 - clap::parse::matches::arg_matches::ArgMatches::value_of::hb1bddf277ac4994b\n                               at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/clap-3.1.12/src/parse/matches/arg_matches.rs:145:9\n  17:     0x5d3e260e5f3b - headr::get_args::h8a8ed3f2a0745bff\n                               at /opt/rustwide/workdir/src/lib.rs:87:17\n  18:     0x5d3e260dd182 - headr::main::h4d2ec02e42518850\n                               at /opt/rustwide/workdir/src/main.rs:2:21\n  19:     0x5d3e260dd00b - core::ops::function::FnOnce::call_once::ha086ab96d6044936\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5\n  20:     0x5d3e260dcfce - std::sys::backtrace::__rust_begin_short_backtrace::h93357a327562d406\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:154:18\n  21:     0x5d3e260dcfa1 - std::rt::lang_start::{{closure}}::h29b5c1654475a286\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:195:18\n  22:     0x5d3e2622fcae - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hfdb85f4ee94732d3\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:284:13\n  23:     0x5d3e2622fcae - std::panicking::try::do_call::h6e577310f330cbef\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40\n  24:     0x5d3e2622fcae - std::panicking::try::ha588d438267d2645\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19\n  25:     0x5d3e2622fcae - std::panic::catch_unwind::h429fda1e025f26d9\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14\n  26:     0x5d3e2622fcae - std::rt::lang_start_internal::{{closure}}::h7b731265e841c4bf\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:174:48\n  27:     0x5d3e2622fcae - std::panicking::try::do_call::hc0f6a675b7ae5a36\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40\n  28:     0x5d3e2622fcae - std::panicking::try::h4c93b7ff0671f1ff\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19\n  29:     0x5d3e2622fcae - std::panic::catch_unwind::hcc1e154961d16ce6\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14\n  30:     0x5d3e2622fcae - std::rt::lang_start_internal::h1c66660c99c8424c\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:174:20\n  31:     0x5d3e260dcf7a - std::rt::lang_start::hb0922cc9fec3fba2\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:194:17\n  32:     0x5d3e260dd2ee - main\n  33:     0x7fd536119d90 - <unknown>\n  34:     0x7fd536119e40 - __libc_start_main\n  35:     0x5d3e260dce75 - _start\n  36:                0x0 - <unknown>\n"```
[INFO] [stdout] command=`"/opt/rustwide/target/debug/headr" "-n=2" "tests/inputs/empty.txt"`
[INFO] [stdout] code=101
[INFO] [stdout] stdout=""
[INFO] [stdout] stderr="thread \'main\' panicked at src/lib.rs:88:10:\nMust use `_os` lookups with `Arg::allow_invalid_utf8` at `lines`\nstack backtrace:\n   0:     0x5d3e26236f1a - std::backtrace_rs::backtrace::libunwind::trace::h5a5b8284f2d0c266\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5\n   1:     0x5d3e26236f1a - std::backtrace_rs::backtrace::trace_unsynchronized::h76d4f1c9b0b875e3\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5\n   2:     0x5d3e26236f1a - std::sys::backtrace::_print_fmt::hc4546b8364a537c6\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:66:9\n   3:     0x5d3e26236f1a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h5b6bd5631a6d1f6b\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:39:26\n   4:     0x5d3e262544a3 - core::fmt::rt::Argument::fmt::h270f6602a2b96f62\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/rt.rs:177:76\n   5:     0x5d3e262544a3 - core::fmt::write::h7550c97b06c86515\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/mod.rs:1186:21\n   6:     0x5d3e26234323 - std::io::Write::write_fmt::h7b09c64fe0be9c84\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/io/mod.rs:1839:15\n   7:     0x5d3e26236d62 - std::sys::backtrace::BacktraceLock::print::h2395ccd2c84ba3aa\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:42:9\n   8:     0x5d3e26237d0c - std::panicking::default_hook::{{closure}}::he19d4c7230e07961\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:268:22\n   9:     0x5d3e26237b52 - std::panicking::default_hook::hf614597d3c67bbdb\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:295:9\n  10:     0x5d3e262382e7 - std::panicking::rust_panic_with_hook::h8942133a8b252070\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:801:13\n  11:     0x5d3e2623817a - std::panicking::begin_panic_handler::{{closure}}::hb5f5963570096b29\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:674:13\n  12:     0x5d3e262373f9 - std::sys::backtrace::__rust_end_short_backtrace::h6208cedc1922feda\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:170:18\n  13:     0x5d3e26237e0c - rust_begin_unwind\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:665:5\n  14:     0x5d3e260dc5a0 - core::panicking::panic_fmt::h0c3082644d1bf418\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panicking.rs:74:14\n  15:     0x5d3e260e0e0b - clap::parse::matches::arg_matches::assert_utf8_validation::hdc9ac5cf50a24dae\n                               at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/clap-3.1.12/src/parse/matches/arg_matches.rs:1408:5\n  16:     0x5d3e260e0ba1 - clap::parse::matches::arg_matches::ArgMatches::value_of::hb1bddf277ac4994b\n                               at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/clap-3.1.12/src/parse/matches/arg_matches.rs:145:9\n  17:     0x5d3e260e5f3b - headr::get_args::h8a8ed3f2a0745bff\n                               at /opt/rustwide/workdir/src/lib.rs:87:17\n  18:     0x5d3e260dd182 - headr::main::h4d2ec02e42518850\n                               at /opt/rustwide/workdir/src/main.rs:2:21\n  19:     0x5d3e260dd00b - core::ops::function::FnOnce::call_once::ha086ab96d6044936\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5\n  20:     0x5d3e260dcfce - std::sys::backtrace::__rust_begin_short_backtrace::h93357a327562d406\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:154:18\n  21:     0x5d3e260dcfa1 - std::rt::lang_start::{{closure}}::h29b5c1654475a286\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:195:18\n  22:     0x5d3e2622fcae - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hfdb85f4ee94732d3\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:284:13\n  23:     0x5d3e2622fcae - std::panicking::try::do_call::h6e577310f330cbef\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40\n  24:     0x5d3e2622fcae - std::panicking::try::ha588d438267d2645\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19\n  25:     0x5d3e2622fcae - std::panic::catch_unwind::h429fda1e025f26d9\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14\n  26:     0x5d3e2622fcae - std::rt::lang_start_internal::{{closure}}::h7b731265e841c4bf\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:174:48\n  27:     0x5d3e2622fcae - std::panicking::try::do_call::hc0f6a675b7ae5a36\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40\n  28:     0x5d3e2622fcae - std::panicking::try::h4c93b7ff0671f1ff\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19\n  29:     0x5d3e2622fcae - std::panic::catch_unwind::hcc1e154961d16ce6\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14\n  30:     0x5d3e2622fcae - std::rt::lang_start_internal::h1c66660c99c8424c\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:174:20\n  31:     0x5d3e260dcf7a - std::rt::lang_start::hb0922cc9fec3fba2\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:194:17\n  32:     0x5d3e260dd2ee - main\n  33:     0x7fd536119d90 - <unknown>\n  34:     0x7fd536119e40 - __libc_start_main\n  35:     0x5d3e260dce75 - _start\n  36:                0x0 - <unknown>\n"
[INFO] [stdout] 
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x59197d0012fa - std::backtrace_rs::backtrace::libunwind::trace::h5a5b8284f2d0c266
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stdout]    1:     0x59197d0012fa - std::backtrace_rs::backtrace::trace_unsynchronized::h76d4f1c9b0b875e3
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x59197d0012fa - std::sys::backtrace::_print_fmt::hc4546b8364a537c6
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x59197d0012fa - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h5b6bd5631a6d1f6b
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x59197d0277b3 - core::fmt::rt::Argument::fmt::h270f6602a2b96f62
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/rt.rs:177:76
[INFO] [stdout]    5:     0x59197d0277b3 - core::fmt::write::h7550c97b06c86515
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/mod.rs:1186:21
[INFO] [stdout]    6:     0x59197cffde13 - std::io::Write::write_fmt::h509ff860e5956e5e
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/io/mod.rs:1839:15
[INFO] [stdout]    7:     0x59197d001142 - std::sys::backtrace::BacktraceLock::print::h2395ccd2c84ba3aa
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    8:     0x59197d0027da - std::panicking::default_hook::{{closure}}::he19d4c7230e07961
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:268:22
[INFO] [stdout]    9:     0x59197d0025e4 - std::panicking::default_hook::hf614597d3c67bbdb
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:292:9
[INFO] [stdout]   10:     0x59197cf94059 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h39b51ce4599c23d1
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2468:9
[INFO] [stdout]   11:     0x59197cf94059 - test::test_main::{{closure}}::he977ae839a582784
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:133:21
[INFO] [stdout]   12:     0x59197d002e78 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h9455091b6b06f9fb
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2468:9
[INFO] [stdout]   13:     0x59197d002e78 - std::panicking::rust_panic_with_hook::h8942133a8b252070
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:809:13
[INFO] [stdout]   14:     0x59197d002c3a - std::panicking::begin_panic_handler::{{closure}}::hb5f5963570096b29
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:674:13
[INFO] [stdout]   15:     0x59197d0017d9 - std::sys::backtrace::__rust_end_short_backtrace::h6208cedc1922feda
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:170:18
[INFO] [stdout]   16:     0x59197d0028cc - rust_begin_unwind
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:665:5
[INFO] [stdout]   17:     0x59197cf00080 - core::panicking::panic_fmt::h0c3082644d1bf418
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panicking.rs:74:14
[INFO] [stdout]   18:     0x59197cf098e3 - core::panicking::panic_display::haebb95bbc2980f94
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panicking.rs:264:5
[INFO] [stdout]   19:     0x59197cf13bc7 - assert_cmd::assert::AssertError::panic::hd1f72b2291399986
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/assert_cmd-2.0.4/src/assert.rs:1036:9
[INFO] [stdout]   20:     0x59197cf05e47 - core::ops::function::FnOnce::call_once::h644454aa2a435deb
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   21:     0x59197cf0f360 - core::result::Result<T,E>::unwrap_or_else::h04098f468373099f
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/result.rs:1458:23
[INFO] [stdout]   22:     0x59197cf13176 - assert_cmd::assert::Assert::success::h6ea6019169935b96
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/assert_cmd-2.0.4/src/assert.rs:156:9
[INFO] [stdout]   23:     0x59197cf048a3 - cli::run_read_file::h6b87e3460ac34d18
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/cli.rs:59:5
[INFO] [stdout]   24:     0x59197cf0520e - cli::test_empty::he55df61ff5506137
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/cli.rs:68:5
[INFO] [stdout]   25:     0x59197cf051d7 - cli::test_empty::{{closure}}::h87bba299a71dbb44
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/cli.rs:67:16
[INFO] [stdout]   26:     0x59197cf02466 - core::ops::function::FnOnce::call_once::h5156954dcb6f69b8
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   27:     0x59197cf98a1b - core::ops::function::FnOnce::call_once::h109cf8051a59b34e
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   28:     0x59197cf98a1b - test::__rust_begin_short_backtrace::hf4fff89d377446ba
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:621:18
[INFO] [stdout]   29:     0x59197cf98257 - test::run_test_in_process::{{closure}}::h0e39181dd7ee5a43
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:644:60
[INFO] [stdout]   30:     0x59197cf98257 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc5a66a30f0bdfd1f
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   31:     0x59197cf98257 - std::panicking::try::do_call::h873b7cf639554a5e
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40
[INFO] [stdout]   32:     0x59197cf98257 - std::panicking::try::hdb19862fad9c8bd1
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19
[INFO] [stdout]   33:     0x59197cf98257 - std::panic::catch_unwind::h281fe732d236d260
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14
[INFO] [stdout]   34:     0x59197cf98257 - test::run_test_in_process::h949b6df8457ed338
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:644:27
[INFO] [stdout]   35:     0x59197cf98257 - test::run_test::{{closure}}::h52c556a6d4740e10
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:565:43
[INFO] [stdout]   36:     0x59197cf5d534 - test::run_test::{{closure}}::h4237f6381c45ccb9
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:595:41
[INFO] [stdout]   37:     0x59197cf5d534 - std::sys::backtrace::__rust_begin_short_backtrace::h505c97a579eca628
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:154:18
[INFO] [stdout]   38:     0x59197cf60bfe - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h9e86b2e2bc107ea3
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/thread/mod.rs:538:17
[INFO] [stdout]   39:     0x59197cf60bfe - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h8b06ddb275ff4a25
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   40:     0x59197cf60bfe - std::panicking::try::do_call::hb26ecd7cd9a9355d
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40
[INFO] [stdout]   41:     0x59197cf60bfe - std::panicking::try::h8ddeca9d705f9069
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19
[INFO] [stdout]   42:     0x59197cf60bfe - std::panic::catch_unwind::h49e1c33078844c46
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14
[INFO] [stdout]   43:     0x59197cf60bfe - std::thread::Builder::spawn_unchecked_::{{closure}}::h6073db6ff56ad35d
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/thread/mod.rs:537:30
[INFO] [stdout]   44:     0x59197cf60bfe - core::ops::function::FnOnce::call_once{{vtable.shim}}::h2c5a5f3779c774f1
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   45:     0x59197d00771b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf75717d9f28faebf
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2454:9
[INFO] [stdout]   46:     0x59197d00771b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7bd883a5f3c5f3c1
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2454:9
[INFO] [stdout]   47:     0x59197d00771b - std::sys::pal::unix::thread::Thread::new::thread_start::hcc78f3943333fa94
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/pal/unix/thread.rs:105:17
[INFO] [stdout]   48:     0x789a71af0ac3 - <unknown>
[INFO] [stdout]   49:     0x789a71b81a04 - clone
[INFO] [stdout]   50:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- read_lines stdout ----
[INFO] [stdout] thread 'read_lines' panicked at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5:
[INFO] [stdout] Unexpected failure.
[INFO] [stdout] code-101
[INFO] [stdout] stderr=```"thread \'main\' panicked at src/lib.rs:88:10:\nMust use `_os` lookups with `Arg::allow_invalid_utf8` at `lines`\nstack backtrace:\n   0:     0x5d35da1dff1a - std::backtrace_rs::backtrace::libunwind::trace::h5a5b8284f2d0c266\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5\n   1:     0x5d35da1dff1a - std::backtrace_rs::backtrace::trace_unsynchronized::h76d4f1c9b0b875e3\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5\n   2:     0x5d35da1dff1a - std::sys::backtrace::_print_fmt::hc4546b8364a537c6\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:66:9\n   3:     0x5d35da1dff1a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h5b6bd5631a6d1f6b\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:39:26\n   4:     0x5d35da1fd4a3 - core::fmt::rt::Argument::fmt::h270f6602a2b96f62\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/rt.rs:177:76\n   5:     0x5d35da1fd4a3 - core::fmt::write::h7550c97b06c86515\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/mod.rs:1186:21\n   6:     0x5d35da1dd323 - std::io::Write::write_fmt::h7b09c64fe0be9c84\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/io/mod.rs:1839:15\n   7:     0x5d35da1dfd62 - std::sys::backtrace::BacktraceLock::print::h2395ccd2c84ba3aa\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:42:9\n   8:     0x5d35da1e0d0c - std::panicking::default_hook::{{closure}}::he19d4c7230e07961\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:268:22\n   9:     0x5d35da1e0b52 - std::panicking::default_hook::hf614597d3c67bbdb\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:295:9\n  10:     0x5d35da1e12e7 - std::panicking::rust_panic_with_hook::h8942133a8b252070\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:801:13\n  11:     0x5d35da1e117a - std::panicking::begin_panic_handler::{{closure}}::hb5f5963570096b29\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:674:13\n  12:     0x5d35da1e03f9 - std::sys::backtrace::__rust_end_short_backtrace::h6208cedc1922feda\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:170:18\n  13:     0x5d35da1e0e0c - rust_begin_unwind\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:665:5\n  14:     0x5d35da0855a0 - core::panicking::panic_fmt::h0c3082644d1bf418\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panicking.rs:74:14\n  15:     0x5d35da089e0b - clap::parse::matches::arg_matches::assert_utf8_validation::hdc9ac5cf50a24dae\n                               at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/clap-3.1.12/src/parse/matches/arg_matches.rs:1408:5\n  16:     0x5d35da089ba1 - clap::parse::matches::arg_matches::ArgMatches::value_of::hb1bddf277ac4994b\n                               at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/clap-3.1.12/src/parse/matches/arg_matches.rs:145:9\n  17:     0x5d35da08ef3b - headr::get_args::h8a8ed3f2a0745bff\n                               at /opt/rustwide/workdir/src/lib.rs:87:17\n  18:     0x5d35da086182 - headr::main::h4d2ec02e42518850\n                               at /opt/rustwide/workdir/src/main.rs:2:21\n  19:     0x5d35da08600b - core::ops::function::FnOnce::call_once::ha086ab96d6044936\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5\n  20:     0x5d35da085fce - std::sys::backtrace::__rust_begin_short_backtrace::h93357a327562d406\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:154:18\n  21:     0x5d35da085fa1 - std::rt::lang_start::{{closure}}::h29b5c1654475a286\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:195:18\n  22:     0x5d35da1d8cae - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hfdb85f4ee94732d3\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:284:13\n  23:     0x5d35da1d8cae - std::panicking::try::do_call::h6e577310f330cbef\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40\n  24:     0x5d35da1d8cae - std::panicking::try::ha588d438267d2645\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19\n  25:     0x5d35da1d8cae - std::panic::catch_unwind::h429fda1e025f26d9\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14\n  26:     0x5d35da1d8cae - std::rt::lang_start_internal::{{closure}}::h7b731265e841c4bf\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:174:48\n  27:     0x5d35da1d8cae - std::panicking::try::do_call::hc0f6a675b7ae5a36\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40\n  28:     0x5d35da1d8cae - std::panicking::try::h4c93b7ff0671f1ff\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19\n  29:     0x5d35da1d8cae - std::panic::catch_unwind::hcc1e154961d16ce6\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14\n  30:     0x5d35da1d8cae - std::rt::lang_start_internal::h1c66660c99c8424c\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:174:20\n  31:     0x5d35da085f7a - std::rt::lang_start::hb0922cc9fec3fba2\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:194:17\n  32:     0x5d35da0862ee - main\n  33:     0x78de243c7d90 - <unknown>\n  34:     0x78de243c7e40 - __libc_start_main\n  35:     0x5d35da085e75 - _start\n  36:                0x0 - <unknown>\n"```
[INFO] [stdout] command=`"/opt/rustwide/target/debug/headr" "-n=3" "tests/inputs/ten.txt"`
[INFO] [stdout] code=101
[INFO] [stdout] stdout=""
[INFO] [stdout] stderr="thread \'main\' panicked at src/lib.rs:88:10:\nMust use `_os` lookups with `Arg::allow_invalid_utf8` at `lines`\nstack backtrace:\n   0:     0x5d35da1dff1a - std::backtrace_rs::backtrace::libunwind::trace::h5a5b8284f2d0c266\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5\n   1:     0x5d35da1dff1a - std::backtrace_rs::backtrace::trace_unsynchronized::h76d4f1c9b0b875e3\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5\n   2:     0x5d35da1dff1a - std::sys::backtrace::_print_fmt::hc4546b8364a537c6\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:66:9\n   3:     0x5d35da1dff1a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h5b6bd5631a6d1f6b\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:39:26\n   4:     0x5d35da1fd4a3 - core::fmt::rt::Argument::fmt::h270f6602a2b96f62\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/rt.rs:177:76\n   5:     0x5d35da1fd4a3 - core::fmt::write::h7550c97b06c86515\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/mod.rs:1186:21\n   6:     0x5d35da1dd323 - std::io::Write::write_fmt::h7b09c64fe0be9c84\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/io/mod.rs:1839:15\n   7:     0x5d35da1dfd62 - std::sys::backtrace::BacktraceLock::print::h2395ccd2c84ba3aa\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:42:9\n   8:     0x5d35da1e0d0c - std::panicking::default_hook::{{closure}}::he19d4c7230e07961\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:268:22\n   9:     0x5d35da1e0b52 - std::panicking::default_hook::hf614597d3c67bbdb\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:295:9\n  10:     0x5d35da1e12e7 - std::panicking::rust_panic_with_hook::h8942133a8b252070\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:801:13\n  11:     0x5d35da1e117a - std::panicking::begin_panic_handler::{{closure}}::hb5f5963570096b29\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:674:13\n  12:     0x5d35da1e03f9 - std::sys::backtrace::__rust_end_short_backtrace::h6208cedc1922feda\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:170:18\n  13:     0x5d35da1e0e0c - rust_begin_unwind\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:665:5\n  14:     0x5d35da0855a0 - core::panicking::panic_fmt::h0c3082644d1bf418\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panicking.rs:74:14\n  15:     0x5d35da089e0b - clap::parse::matches::arg_matches::assert_utf8_validation::hdc9ac5cf50a24dae\n                               at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/clap-3.1.12/src/parse/matches/arg_matches.rs:1408:5\n  16:     0x5d35da089ba1 - clap::parse::matches::arg_matches::ArgMatches::value_of::hb1bddf277ac4994b\n                               at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/clap-3.1.12/src/parse/matches/arg_matches.rs:145:9\n  17:     0x5d35da08ef3b - headr::get_args::h8a8ed3f2a0745bff\n                               at /opt/rustwide/workdir/src/lib.rs:87:17\n  18:     0x5d35da086182 - headr::main::h4d2ec02e42518850\n                               at /opt/rustwide/workdir/src/main.rs:2:21\n  19:     0x5d35da08600b - core::ops::function::FnOnce::call_once::ha086ab96d6044936\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5\n  20:     0x5d35da085fce - std::sys::backtrace::__rust_begin_short_backtrace::h93357a327562d406\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:154:18\n  21:     0x5d35da085fa1 - std::rt::lang_start::{{closure}}::h29b5c1654475a286\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:195:18\n  22:     0x5d35da1d8cae - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hfdb85f4ee94732d3\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:284:13\n  23:     0x5d35da1d8cae - std::panicking::try::do_call::h6e577310f330cbef\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40\n  24:     0x5d35da1d8cae - std::panicking::try::ha588d438267d2645\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19\n  25:     0x5d35da1d8cae - std::panic::catch_unwind::h429fda1e025f26d9\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14\n  26:     0x5d35da1d8cae - std::rt::lang_start_internal::{{closure}}::h7b731265e841c4bf\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:174:48\n  27:     0x5d35da1d8cae - std::panicking::try::do_call::hc0f6a675b7ae5a36\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40\n  28:     0x5d35da1d8cae - std::panicking::try::h4c93b7ff0671f1ff\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19\n  29:     0x5d35da1d8cae - std::panic::catch_unwind::hcc1e154961d16ce6\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14\n  30:     0x5d35da1d8cae - std::rt::lang_start_internal::h1c66660c99c8424c\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:174:20\n  31:     0x5d35da085f7a - std::rt::lang_start::hb0922cc9fec3fba2\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:194:17\n  32:     0x5d35da0862ee - main\n  33:     0x78de243c7d90 - <unknown>\n  34:     0x78de243c7e40 - __libc_start_main\n  35:     0x5d35da085e75 - _start\n  36:                0x0 - <unknown>\n"
[INFO] [stdout] 
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x59197d0012fa - std::backtrace_rs::backtrace::libunwind::trace::h5a5b8284f2d0c266
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stdout]    1:     0x59197d0012fa - std::backtrace_rs::backtrace::trace_unsynchronized::h76d4f1c9b0b875e3
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x59197d0012fa - std::sys::backtrace::_print_fmt::hc4546b8364a537c6
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x59197d0012fa - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h5b6bd5631a6d1f6b
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x59197d0277b3 - core::fmt::rt::Argument::fmt::h270f6602a2b96f62
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/rt.rs:177:76
[INFO] [stdout]    5:     0x59197d0277b3 - core::fmt::write::h7550c97b06c86515
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/mod.rs:1186:21
[INFO] [stdout]    6:     0x59197cffde13 - std::io::Write::write_fmt::h509ff860e5956e5e
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/io/mod.rs:1839:15
[INFO] [stdout]    7:     0x59197d001142 - std::sys::backtrace::BacktraceLock::print::h2395ccd2c84ba3aa
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    8:     0x59197d0027da - std::panicking::default_hook::{{closure}}::he19d4c7230e07961
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:268:22
[INFO] [stdout]    9:     0x59197d0025e4 - std::panicking::default_hook::hf614597d3c67bbdb
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:292:9
[INFO] [stdout]   10:     0x59197cf94059 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h39b51ce4599c23d1
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2468:9
[INFO] [stdout]   11:     0x59197cf94059 - test::test_main::{{closure}}::he977ae839a582784
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:133:21
[INFO] [stdout]   12:     0x59197d002e78 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h9455091b6b06f9fb
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2468:9
[INFO] [stdout]   13:     0x59197d002e78 - std::panicking::rust_panic_with_hook::h8942133a8b252070
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:809:13
[INFO] [stdout]   14:     0x59197d002c3a - std::panicking::begin_panic_handler::{{closure}}::hb5f5963570096b29
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:674:13
[INFO] [stdout]   15:     0x59197d0017d9 - std::sys::backtrace::__rust_end_short_backtrace::h6208cedc1922feda
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:170:18
[INFO] [stdout]   16:     0x59197d0028cc - rust_begin_unwind
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:665:5
[INFO] [stdout]   17:     0x59197cf00080 - core::panicking::panic_fmt::h0c3082644d1bf418
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panicking.rs:74:14
[INFO] [stdout]   18:     0x59197cf098e3 - core::panicking::panic_display::haebb95bbc2980f94
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panicking.rs:264:5
[INFO] [stdout]   19:     0x59197cf13bc7 - assert_cmd::assert::AssertError::panic::hd1f72b2291399986
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/assert_cmd-2.0.4/src/assert.rs:1036:9
[INFO] [stdout]   20:     0x59197cf05e47 - core::ops::function::FnOnce::call_once::h644454aa2a435deb
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   21:     0x59197cf0f360 - core::result::Result<T,E>::unwrap_or_else::h04098f468373099f
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/result.rs:1458:23
[INFO] [stdout]   22:     0x59197cf13176 - assert_cmd::assert::Assert::success::h6ea6019169935b96
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/assert_cmd-2.0.4/src/assert.rs:156:9
[INFO] [stdout]   23:     0x59197cf048a3 - cli::run_read_file::h6b87e3460ac34d18
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/cli.rs:59:5
[INFO] [stdout]   24:     0x59197cf052ce - cli::read_lines::h7961d2469d0aa9b9
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/cli.rs:86:5
[INFO] [stdout]   25:     0x59197cf05297 - cli::read_lines::{{closure}}::hec204a4f0f6fb006
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/cli.rs:85:16
[INFO] [stdout]   26:     0x59197cf02566 - core::ops::function::FnOnce::call_once::h870b1df8955f4ae7
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   27:     0x59197cf98a1b - core::ops::function::FnOnce::call_once::h109cf8051a59b34e
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   28:     0x59197cf98a1b - test::__rust_begin_short_backtrace::hf4fff89d377446ba
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:621:18
[INFO] [stdout]   29:     0x59197cf98257 - test::run_test_in_process::{{closure}}::h0e39181dd7ee5a43
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:644:60
[INFO] [stdout]   30:     0x59197cf98257 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc5a66a30f0bdfd1f
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   31:     0x59197cf98257 - std::panicking::try::do_call::h873b7cf639554a5e
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40
[INFO] [stdout]   32:     0x59197cf98257 - std::panicking::try::hdb19862fad9c8bd1
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19
[INFO] [stdout]   33:     0x59197cf98257 - std::panic::catch_unwind::h281fe732d236d260
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14
[INFO] [stdout]   34:     0x59197cf98257 - test::run_test_in_process::h949b6df8457ed338
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:644:27
[INFO] [stdout]   35:     0x59197cf98257 - test::run_test::{{closure}}::h52c556a6d4740e10
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:565:43
[INFO] [stdout]   36:     0x59197cf5d534 - test::run_test::{{closure}}::h4237f6381c45ccb9
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:595:41
[INFO] [stdout]   37:     0x59197cf5d534 - std::sys::backtrace::__rust_begin_short_backtrace::h505c97a579eca628
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:154:18
[INFO] [stdout]   38:     0x59197cf60bfe - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h9e86b2e2bc107ea3
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/thread/mod.rs:538:17
[INFO] [stdout]   39:     0x59197cf60bfe - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h8b06ddb275ff4a25
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   40:     0x59197cf60bfe - std::panicking::try::do_call::hb26ecd7cd9a9355d
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40
[INFO] [stdout]   41:     0x59197cf60bfe - std::panicking::try::h8ddeca9d705f9069
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19
[INFO] [stdout]   42:     0x59197cf60bfe - std::panic::catch_unwind::h49e1c33078844c46
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14
[INFO] [stdout]   43:     0x59197cf60bfe - std::thread::Builder::spawn_unchecked_::{{closure}}::h6073db6ff56ad35d
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/thread/mod.rs:537:30
[INFO] [stdout]   44:     0x59197cf60bfe - core::ops::function::FnOnce::call_once{{vtable.shim}}::h2c5a5f3779c774f1
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   45:     0x59197d00771b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf75717d9f28faebf
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2454:9
[INFO] [stdout]   46:     0x59197d00771b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7bd883a5f3c5f3c1
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2454:9
[INFO] [stdout]   47:     0x59197d00771b - std::sys::pal::unix::thread::Thread::new::thread_start::hcc78f3943333fa94
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/pal/unix/thread.rs:105:17
[INFO] [stdout]   48:     0x789a71af0ac3 - <unknown>
[INFO] [stdout]   49:     0x789a71b81a04 - clone
[INFO] [stdout]   50:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- read_lines_from_files stdout ----
[INFO] [stdout] thread 'read_lines_from_files' panicked at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5:
[INFO] [stdout] Unexpected failure.
[INFO] [stdout] code-101
[INFO] [stdout] stderr=```"thread \'main\' panicked at src/lib.rs:88:10:\nMust use `_os` lookups with `Arg::allow_invalid_utf8` at `lines`\nstack backtrace:\n   0:     0x62bf99148f1a - std::backtrace_rs::backtrace::libunwind::trace::h5a5b8284f2d0c266\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5\n   1:     0x62bf99148f1a - std::backtrace_rs::backtrace::trace_unsynchronized::h76d4f1c9b0b875e3\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5\n   2:     0x62bf99148f1a - std::sys::backtrace::_print_fmt::hc4546b8364a537c6\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:66:9\n   3:     0x62bf99148f1a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h5b6bd5631a6d1f6b\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:39:26\n   4:     0x62bf991664a3 - core::fmt::rt::Argument::fmt::h270f6602a2b96f62\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/rt.rs:177:76\n   5:     0x62bf991664a3 - core::fmt::write::h7550c97b06c86515\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/mod.rs:1186:21\n   6:     0x62bf99146323 - std::io::Write::write_fmt::h7b09c64fe0be9c84\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/io/mod.rs:1839:15\n   7:     0x62bf99148d62 - std::sys::backtrace::BacktraceLock::print::h2395ccd2c84ba3aa\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:42:9\n   8:     0x62bf99149d0c - std::panicking::default_hook::{{closure}}::he19d4c7230e07961\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:268:22\n   9:     0x62bf99149b52 - std::panicking::default_hook::hf614597d3c67bbdb\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:295:9\n  10:     0x62bf9914a2e7 - std::panicking::rust_panic_with_hook::h8942133a8b252070\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:801:13\n  11:     0x62bf9914a17a - std::panicking::begin_panic_handler::{{closure}}::hb5f5963570096b29\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:674:13\n  12:     0x62bf991493f9 - std::sys::backtrace::__rust_end_short_backtrace::h6208cedc1922feda\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:170:18\n  13:     0x62bf99149e0c - rust_begin_unwind\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:665:5\n  14:     0x62bf98fee5a0 - core::panicking::panic_fmt::h0c3082644d1bf418\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panicking.rs:74:14\n  15:     0x62bf98ff2e0b - clap::parse::matches::arg_matches::assert_utf8_validation::hdc9ac5cf50a24dae\n                               at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/clap-3.1.12/src/parse/matches/arg_matches.rs:1408:5\n  16:     0x62bf98ff2ba1 - clap::parse::matches::arg_matches::ArgMatches::value_of::hb1bddf277ac4994b\n                               at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/clap-3.1.12/src/parse/matches/arg_matches.rs:145:9\n  17:     0x62bf98ff7f3b - headr::get_args::h8a8ed3f2a0745bff\n                               at /opt/rustwide/workdir/src/lib.rs:87:17\n  18:     0x62bf98fef182 - headr::main::h4d2ec02e42518850\n                               at /opt/rustwide/workdir/src/main.rs:2:21\n  19:     0x62bf98fef00b - core::ops::function::FnOnce::call_once::ha086ab96d6044936\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5\n  20:     0x62bf98feefce - std::sys::backtrace::__rust_begin_short_backtrace::h93357a327562d406\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:154:18\n  21:     0x62bf98feefa1 - std::rt::lang_start::{{closure}}::h29b5c1654475a286\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:195:18\n  22:     0x62bf99141cae - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hfdb85f4ee94732d3\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:284:13\n  23:     0x62bf99141cae - std::panicking::try::do_call::h6e577310f330cbef\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40\n  24:     0x62bf99141cae - std::panicking::try::ha588d438267d2645\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19\n  25:     0x62bf99141cae - std::panic::catch_unwind::h429fda1e025f26d9\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14\n  26:     0x62bf99141cae - std::rt::lang_start_internal::{{closure}}::h7b731265e841c4bf\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:174:48\n  27:     0x62bf99141cae - std::panicking::try::do_call::hc0f6a675b7ae5a36\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40\n  28:     0x62bf99141cae - std::panicking::try::h4c93b7ff0671f1ff\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19\n  29:     0x62bf99141cae - std::panic::catch_unwind::hcc1e154961d16ce6\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14\n  30:     0x62bf99141cae - std::rt::lang_start_internal::h1c66660c99c8424c\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:174:20\n  31:     0x62bf98feef7a - std::rt::lang_start::hb0922cc9fec3fba2\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:194:17\n  32:     0x62bf98fef2ee - main\n  33:     0x73f6a12dbd90 - <unknown>\n  34:     0x73f6a12dbe40 - __libc_start_main\n  35:     0x62bf98feee75 - _start\n  36:                0x0 - <unknown>\n"```
[INFO] [stdout] command=`"/opt/rustwide/target/debug/headr" "-n=2" "tests/inputs/three-lines.txt"`
[INFO] [stdout] code=101
[INFO] [stdout] stdout=""
[INFO] [stdout] stderr="thread \'main\' panicked at src/lib.rs:88:10:\nMust use `_os` lookups with `Arg::allow_invalid_utf8` at `lines`\nstack backtrace:\n   0:     0x62bf99148f1a - std::backtrace_rs::backtrace::libunwind::trace::h5a5b8284f2d0c266\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5\n   1:     0x62bf99148f1a - std::backtrace_rs::backtrace::trace_unsynchronized::h76d4f1c9b0b875e3\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5\n   2:     0x62bf99148f1a - std::sys::backtrace::_print_fmt::hc4546b8364a537c6\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:66:9\n   3:     0x62bf99148f1a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h5b6bd5631a6d1f6b\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:39:26\n   4:     0x62bf991664a3 - core::fmt::rt::Argument::fmt::h270f6602a2b96f62\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/rt.rs:177:76\n   5:     0x62bf991664a3 - core::fmt::write::h7550c97b06c86515\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/mod.rs:1186:21\n   6:     0x62bf99146323 - std::io::Write::write_fmt::h7b09c64fe0be9c84\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/io/mod.rs:1839:15\n   7:     0x62bf99148d62 - std::sys::backtrace::BacktraceLock::print::h2395ccd2c84ba3aa\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:42:9\n   8:     0x62bf99149d0c - std::panicking::default_hook::{{closure}}::he19d4c7230e07961\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:268:22\n   9:     0x62bf99149b52 - std::panicking::default_hook::hf614597d3c67bbdb\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:295:9\n  10:     0x62bf9914a2e7 - std::panicking::rust_panic_with_hook::h8942133a8b252070\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:801:13\n  11:     0x62bf9914a17a - std::panicking::begin_panic_handler::{{closure}}::hb5f5963570096b29\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:674:13\n  12:     0x62bf991493f9 - std::sys::backtrace::__rust_end_short_backtrace::h6208cedc1922feda\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:170:18\n  13:     0x62bf99149e0c - rust_begin_unwind\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:665:5\n  14:     0x62bf98fee5a0 - core::panicking::panic_fmt::h0c3082644d1bf418\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panicking.rs:74:14\n  15:     0x62bf98ff2e0b - clap::parse::matches::arg_matches::assert_utf8_validation::hdc9ac5cf50a24dae\n                               at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/clap-3.1.12/src/parse/matches/arg_matches.rs:1408:5\n  16:     0x62bf98ff2ba1 - clap::parse::matches::arg_matches::ArgMatches::value_of::hb1bddf277ac4994b\n                               at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/clap-3.1.12/src/parse/matches/arg_matches.rs:145:9\n  17:     0x62bf98ff7f3b - headr::get_args::h8a8ed3f2a0745bff\n                               at /opt/rustwide/workdir/src/lib.rs:87:17\n  18:     0x62bf98fef182 - headr::main::h4d2ec02e42518850\n                               at /opt/rustwide/workdir/src/main.rs:2:21\n  19:     0x62bf98fef00b - core::ops::function::FnOnce::call_once::ha086ab96d6044936\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5\n  20:     0x62bf98feefce - std::sys::backtrace::__rust_begin_short_backtrace::h93357a327562d406\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:154:18\n  21:     0x62bf98feefa1 - std::rt::lang_start::{{closure}}::h29b5c1654475a286\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:195:18\n  22:     0x62bf99141cae - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hfdb85f4ee94732d3\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:284:13\n  23:     0x62bf99141cae - std::panicking::try::do_call::h6e577310f330cbef\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40\n  24:     0x62bf99141cae - std::panicking::try::ha588d438267d2645\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19\n  25:     0x62bf99141cae - std::panic::catch_unwind::h429fda1e025f26d9\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14\n  26:     0x62bf99141cae - std::rt::lang_start_internal::{{closure}}::h7b731265e841c4bf\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:174:48\n  27:     0x62bf99141cae - std::panicking::try::do_call::hc0f6a675b7ae5a36\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40\n  28:     0x62bf99141cae - std::panicking::try::h4c93b7ff0671f1ff\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19\n  29:     0x62bf99141cae - std::panic::catch_unwind::hcc1e154961d16ce6\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14\n  30:     0x62bf99141cae - std::rt::lang_start_internal::h1c66660c99c8424c\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:174:20\n  31:     0x62bf98feef7a - std::rt::lang_start::hb0922cc9fec3fba2\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:194:17\n  32:     0x62bf98fef2ee - main\n  33:     0x73f6a12dbd90 - <unknown>\n  34:     0x73f6a12dbe40 - __libc_start_main\n  35:     0x62bf98feee75 - _start\n  36:                0x0 - <unknown>\n"
[INFO] [stdout] 
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x59197d0012fa - std::backtrace_rs::backtrace::libunwind::trace::h5a5b8284f2d0c266
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stdout]    1:     0x59197d0012fa - std::backtrace_rs::backtrace::trace_unsynchronized::h76d4f1c9b0b875e3
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x59197d0012fa - std::sys::backtrace::_print_fmt::hc4546b8364a537c6
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x59197d0012fa - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h5b6bd5631a6d1f6b
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x59197d0277b3 - core::fmt::rt::Argument::fmt::h270f6602a2b96f62
[INFO] [stderr] error: test failed, to rerun pass `--test cli`
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/rt.rs:177:76
[INFO] [stdout]    5:     0x59197d0277b3 - core::fmt::write::h7550c97b06c86515
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/mod.rs:1186:21
[INFO] [stdout]    6:     0x59197cffde13 - std::io::Write::write_fmt::h509ff860e5956e5e
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/io/mod.rs:1839:15
[INFO] [stdout]    7:     0x59197d001142 - std::sys::backtrace::BacktraceLock::print::h2395ccd2c84ba3aa
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    8:     0x59197d0027da - std::panicking::default_hook::{{closure}}::he19d4c7230e07961
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:268:22
[INFO] [stdout]    9:     0x59197d0025e4 - std::panicking::default_hook::hf614597d3c67bbdb
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:292:9
[INFO] [stdout]   10:     0x59197cf94059 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h39b51ce4599c23d1
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2468:9
[INFO] [stdout]   11:     0x59197cf94059 - test::test_main::{{closure}}::he977ae839a582784
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:133:21
[INFO] [stdout]   12:     0x59197d002e78 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h9455091b6b06f9fb
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2468:9
[INFO] [stdout]   13:     0x59197d002e78 - std::panicking::rust_panic_with_hook::h8942133a8b252070
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:809:13
[INFO] [stdout]   14:     0x59197d002c3a - std::panicking::begin_panic_handler::{{closure}}::hb5f5963570096b29
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:674:13
[INFO] [stdout]   15:     0x59197d0017d9 - std::sys::backtrace::__rust_end_short_backtrace::h6208cedc1922feda
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:170:18
[INFO] [stdout]   16:     0x59197d0028cc - rust_begin_unwind
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:665:5
[INFO] [stdout]   17:     0x59197cf00080 - core::panicking::panic_fmt::h0c3082644d1bf418
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panicking.rs:74:14
[INFO] [stdout]   18:     0x59197cf098e3 - core::panicking::panic_display::haebb95bbc2980f94
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panicking.rs:264:5
[INFO] [stdout]   19:     0x59197cf13bc7 - assert_cmd::assert::AssertError::panic::hd1f72b2291399986
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/assert_cmd-2.0.4/src/assert.rs:1036:9
[INFO] [stdout]   20:     0x59197cf05e47 - core::ops::function::FnOnce::call_once::h644454aa2a435deb
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   21:     0x59197cf0f360 - core::result::Result<T,E>::unwrap_or_else::h04098f468373099f
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/result.rs:1458:23
[INFO] [stdout]   22:     0x59197cf13176 - assert_cmd::assert::Assert::success::h6ea6019169935b96
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/assert_cmd-2.0.4/src/assert.rs:156:9
[INFO] [stdout]   23:     0x59197cf048a3 - cli::run_read_file::h6b87e3460ac34d18
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/cli.rs:59:5
[INFO] [stdout]   24:     0x59197cf0527b - cli::read_lines_from_files::ha872500d912f2462
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/cli.rs:79:5
[INFO] [stdout]   25:     0x59197cf05227 - cli::read_lines_from_files::{{closure}}::hc136b4e70de56992
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/cli.rs:74:27
[INFO] [stdout]   26:     0x59197cf024e6 - core::ops::function::FnOnce::call_once::h5e35db5c74859251
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   27:     0x59197cf98a1b - core::ops::function::FnOnce::call_once::h109cf8051a59b34e
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   28:     0x59197cf98a1b - test::__rust_begin_short_backtrace::hf4fff89d377446ba
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:621:18
[INFO] [stdout]   29:     0x59197cf98257 - test::run_test_in_process::{{closure}}::h0e39181dd7ee5a43
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:644:60
[INFO] [stdout]   30:     0x59197cf98257 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc5a66a30f0bdfd1f
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   31:     0x59197cf98257 - std::panicking::try::do_call::h873b7cf639554a5e
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40
[INFO] [stdout]   32:     0x59197cf98257 - std::panicking::try::hdb19862fad9c8bd1
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19
[INFO] [stdout]   33:     0x59197cf98257 - std::panic::catch_unwind::h281fe732d236d260
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14
[INFO] [stdout]   34:     0x59197cf98257 - test::run_test_in_process::h949b6df8457ed338
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:644:27
[INFO] [stdout]   35:     0x59197cf98257 - test::run_test::{{closure}}::h52c556a6d4740e10
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:565:43
[INFO] [stdout]   36:     0x59197cf5d534 - test::run_test::{{closure}}::h4237f6381c45ccb9
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:595:41
[INFO] [stdout]   37:     0x59197cf5d534 - std::sys::backtrace::__rust_begin_short_backtrace::h505c97a579eca628
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:154:18
[INFO] [stdout]   38:     0x59197cf60bfe - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h9e86b2e2bc107ea3
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/thread/mod.rs:538:17
[INFO] [stdout]   39:     0x59197cf60bfe - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h8b06ddb275ff4a25
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   40:     0x59197cf60bfe - std::panicking::try::do_call::hb26ecd7cd9a9355d
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40
[INFO] [stdout]   41:     0x59197cf60bfe - std::panicking::try::h8ddeca9d705f9069
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19
[INFO] [stdout]   42:     0x59197cf60bfe - std::panic::catch_unwind::h49e1c33078844c46
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14
[INFO] [stdout]   43:     0x59197cf60bfe - std::thread::Builder::spawn_unchecked_::{{closure}}::h6073db6ff56ad35d
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/thread/mod.rs:537:30
[INFO] [stdout]   44:     0x59197cf60bfe - core::ops::function::FnOnce::call_once{{vtable.shim}}::h2c5a5f3779c774f1
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   45:     0x59197d00771b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf75717d9f28faebf
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2454:9
[INFO] [stdout]   46:     0x59197d00771b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7bd883a5f3c5f3c1
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2454:9
[INFO] [stdout]   47:     0x59197d00771b - std::sys::pal::unix::thread::Thread::new::thread_start::hcc78f3943333fa94
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/pal/unix/thread.rs:105:17
[INFO] [stdout]   48:     0x789a71af0ac3 - <unknown>
[INFO] [stdout]   49:     0x789a71b81a04 - clone
[INFO] [stdout]   50:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- test_bytes stdout ----
[INFO] [stdout] thread 'test_bytes' panicked at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5:
[INFO] [stdout] Unexpected failure.
[INFO] [stdout] code-101
[INFO] [stdout] stderr=```"thread \'main\' panicked at src/lib.rs:95:10:\nMust use `_os` lookups with `Arg::allow_invalid_utf8` at `bytes`\nstack backtrace:\n   0:     0x6135a5d25f1a - std::backtrace_rs::backtrace::libunwind::trace::h5a5b8284f2d0c266\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5\n   1:     0x6135a5d25f1a - std::backtrace_rs::backtrace::trace_unsynchronized::h76d4f1c9b0b875e3\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5\n   2:     0x6135a5d25f1a - std::sys::backtrace::_print_fmt::hc4546b8364a537c6\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:66:9\n   3:     0x6135a5d25f1a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h5b6bd5631a6d1f6b\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:39:26\n   4:     0x6135a5d434a3 - core::fmt::rt::Argument::fmt::h270f6602a2b96f62\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/rt.rs:177:76\n   5:     0x6135a5d434a3 - core::fmt::write::h7550c97b06c86515\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/mod.rs:1186:21\n   6:     0x6135a5d23323 - std::io::Write::write_fmt::h7b09c64fe0be9c84\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/io/mod.rs:1839:15\n   7:     0x6135a5d25d62 - std::sys::backtrace::BacktraceLock::print::h2395ccd2c84ba3aa\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:42:9\n   8:     0x6135a5d26d0c - std::panicking::default_hook::{{closure}}::he19d4c7230e07961\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:268:22\n   9:     0x6135a5d26b52 - std::panicking::default_hook::hf614597d3c67bbdb\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:295:9\n  10:     0x6135a5d272e7 - std::panicking::rust_panic_with_hook::h8942133a8b252070\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:801:13\n  11:     0x6135a5d2717a - std::panicking::begin_panic_handler::{{closure}}::hb5f5963570096b29\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:674:13\n  12:     0x6135a5d263f9 - std::sys::backtrace::__rust_end_short_backtrace::h6208cedc1922feda\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:170:18\n  13:     0x6135a5d26e0c - rust_begin_unwind\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:665:5\n  14:     0x6135a5bcb5a0 - core::panicking::panic_fmt::h0c3082644d1bf418\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panicking.rs:74:14\n  15:     0x6135a5bcfe0b - clap::parse::matches::arg_matches::assert_utf8_validation::hdc9ac5cf50a24dae\n                               at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/clap-3.1.12/src/parse/matches/arg_matches.rs:1408:5\n  16:     0x6135a5bcfba1 - clap::parse::matches::arg_matches::ArgMatches::value_of::hb1bddf277ac4994b\n                               at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/clap-3.1.12/src/parse/matches/arg_matches.rs:145:9\n  17:     0x6135a5bd5150 - headr::get_args::h8a8ed3f2a0745bff\n                               at /opt/rustwide/workdir/src/lib.rs:94:17\n  18:     0x6135a5bcc182 - headr::main::h4d2ec02e42518850\n                               at /opt/rustwide/workdir/src/main.rs:2:21\n  19:     0x6135a5bcc00b - core::ops::function::FnOnce::call_once::ha086ab96d6044936\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5\n  20:     0x6135a5bcbfce - std::sys::backtrace::__rust_begin_short_backtrace::h93357a327562d406\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:154:18\n  21:     0x6135a5bcbfa1 - std::rt::lang_start::{{closure}}::h29b5c1654475a286\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:195:18\n  22:     0x6135a5d1ecae - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hfdb85f4ee94732d3\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:284:13\n  23:     0x6135a5d1ecae - std::panicking::try::do_call::h6e577310f330cbef\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40\n  24:     0x6135a5d1ecae - std::panicking::try::ha588d438267d2645\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19\n  25:     0x6135a5d1ecae - std::panic::catch_unwind::h429fda1e025f26d9\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14\n  26:     0x6135a5d1ecae - std::rt::lang_start_internal::{{closure}}::h7b731265e841c4bf\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:174:48\n  27:     0x6135a5d1ecae - std::panicking::try::do_call::hc0f6a675b7ae5a36\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40\n  28:     0x6135a5d1ecae - std::panicking::try::h4c93b7ff0671f1ff\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19\n  29:     0x6135a5d1ecae - std::panic::catch_unwind::hcc1e154961d16ce6\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14\n  30:     0x6135a5d1ecae - std::rt::lang_start_internal::h1c66660c99c8424c\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:174:20\n  31:     0x6135a5bcbf7a - std::rt::lang_start::hb0922cc9fec3fba2\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:194:17\n  32:     0x6135a5bcc2ee - main\n  33:     0x79c898012d90 - <unknown>\n  34:     0x79c898012e40 - __libc_start_main\n  35:     0x6135a5bcbe75 - _start\n  36:                0x0 - <unknown>\n"```
[INFO] [stdout] command=`"/opt/rustwide/target/debug/headr" "-c=3" "tests/inputs/unicodes.txt"`
[INFO] [stdout] code=101
[INFO] [stdout] stdout=""
[INFO] [stdout] stderr="thread \'main\' panicked at src/lib.rs:95:10:\nMust use `_os` lookups with `Arg::allow_invalid_utf8` at `bytes`\nstack backtrace:\n   0:     0x6135a5d25f1a - std::backtrace_rs::backtrace::libunwind::trace::h5a5b8284f2d0c266\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5\n   1:     0x6135a5d25f1a - std::backtrace_rs::backtrace::trace_unsynchronized::h76d4f1c9b0b875e3\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5\n   2:     0x6135a5d25f1a - std::sys::backtrace::_print_fmt::hc4546b8364a537c6\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:66:9\n   3:     0x6135a5d25f1a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h5b6bd5631a6d1f6b\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:39:26\n   4:     0x6135a5d434a3 - core::fmt::rt::Argument::fmt::h270f6602a2b96f62\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/rt.rs:177:76\n   5:     0x6135a5d434a3 - core::fmt::write::h7550c97b06c86515\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/mod.rs:1186:21\n   6:     0x6135a5d23323 - std::io::Write::write_fmt::h7b09c64fe0be9c84\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/io/mod.rs:1839:15\n   7:     0x6135a5d25d62 - std::sys::backtrace::BacktraceLock::print::h2395ccd2c84ba3aa\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:42:9\n   8:     0x6135a5d26d0c - std::panicking::default_hook::{{closure}}::he19d4c7230e07961\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:268:22\n   9:     0x6135a5d26b52 - std::panicking::default_hook::hf614597d3c67bbdb\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:295:9\n  10:     0x6135a5d272e7 - std::panicking::rust_panic_with_hook::h8942133a8b252070\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:801:13\n  11:     0x6135a5d2717a - std::panicking::begin_panic_handler::{{closure}}::hb5f5963570096b29\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:674:13\n  12:     0x6135a5d263f9 - std::sys::backtrace::__rust_end_short_backtrace::h6208cedc1922feda\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:170:18\n  13:     0x6135a5d26e0c - rust_begin_unwind\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:665:5\n  14:     0x6135a5bcb5a0 - core::panicking::panic_fmt::h0c3082644d1bf418\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panicking.rs:74:14\n  15:     0x6135a5bcfe0b - clap::parse::matches::arg_matches::assert_utf8_validation::hdc9ac5cf50a24dae\n                               at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/clap-3.1.12/src/parse/matches/arg_matches.rs:1408:5\n  16:     0x6135a5bcfba1 - clap::parse::matches::arg_matches::ArgMatches::value_of::hb1bddf277ac4994b\n                               at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/clap-3.1.12/src/parse/matches/arg_matches.rs:145:9\n  17:     0x6135a5bd5150 - headr::get_args::h8a8ed3f2a0745bff\n                               at /opt/rustwide/workdir/src/lib.rs:94:17\n  18:     0x6135a5bcc182 - headr::main::h4d2ec02e42518850\n                               at /opt/rustwide/workdir/src/main.rs:2:21\n  19:     0x6135a5bcc00b - core::ops::function::FnOnce::call_once::ha086ab96d6044936\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5\n  20:     0x6135a5bcbfce - std::sys::backtrace::__rust_begin_short_backtrace::h93357a327562d406\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:154:18\n  21:     0x6135a5bcbfa1 - std::rt::lang_start::{{closure}}::h29b5c1654475a286\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:195:18\n  22:     0x6135a5d1ecae - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hfdb85f4ee94732d3\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:284:13\n  23:     0x6135a5d1ecae - std::panicking::try::do_call::h6e577310f330cbef\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40\n  24:     0x6135a5d1ecae - std::panicking::try::ha588d438267d2645\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19\n  25:     0x6135a5d1ecae - std::panic::catch_unwind::h429fda1e025f26d9\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14\n  26:     0x6135a5d1ecae - std::rt::lang_start_internal::{{closure}}::h7b731265e841c4bf\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:174:48\n  27:     0x6135a5d1ecae - std::panicking::try::do_call::hc0f6a675b7ae5a36\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40\n  28:     0x6135a5d1ecae - std::panicking::try::h4c93b7ff0671f1ff\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19\n  29:     0x6135a5d1ecae - std::panic::catch_unwind::hcc1e154961d16ce6\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14\n  30:     0x6135a5d1ecae - std::rt::lang_start_internal::h1c66660c99c8424c\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:174:20\n  31:     0x6135a5bcbf7a - std::rt::lang_start::hb0922cc9fec3fba2\n                               at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:194:17\n  32:     0x6135a5bcc2ee - main\n  33:     0x79c898012d90 - <unknown>\n  34:     0x79c898012e40 - __libc_start_main\n  35:     0x6135a5bcbe75 - _start\n  36:                0x0 - <unknown>\n"
[INFO] [stdout] 
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x59197d0012fa - std::backtrace_rs::backtrace::libunwind::trace::h5a5b8284f2d0c266
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stdout]    1:     0x59197d0012fa - std::backtrace_rs::backtrace::trace_unsynchronized::h76d4f1c9b0b875e3
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x59197d0012fa - std::sys::backtrace::_print_fmt::hc4546b8364a537c6
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x59197d0012fa - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h5b6bd5631a6d1f6b
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x59197d0277b3 - core::fmt::rt::Argument::fmt::h270f6602a2b96f62
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/rt.rs:177:76
[INFO] [stdout]    5:     0x59197d0277b3 - core::fmt::write::h7550c97b06c86515
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/mod.rs:1186:21
[INFO] [stdout]    6:     0x59197cffde13 - std::io::Write::write_fmt::h509ff860e5956e5e
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/io/mod.rs:1839:15
[INFO] [stdout]    7:     0x59197d001142 - std::sys::backtrace::BacktraceLock::print::h2395ccd2c84ba3aa
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    8:     0x59197d0027da - std::panicking::default_hook::{{closure}}::he19d4c7230e07961
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:268:22
[INFO] [stdout]    9:     0x59197d0025e4 - std::panicking::default_hook::hf614597d3c67bbdb
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:292:9
[INFO] [stdout]   10:     0x59197cf94059 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h39b51ce4599c23d1
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2468:9
[INFO] [stdout]   11:     0x59197cf94059 - test::test_main::{{closure}}::he977ae839a582784
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:133:21
[INFO] [stdout]   12:     0x59197d002e78 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h9455091b6b06f9fb
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2468:9
[INFO] [stdout]   13:     0x59197d002e78 - std::panicking::rust_panic_with_hook::h8942133a8b252070
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:809:13
[INFO] [stdout]   14:     0x59197d002c3a - std::panicking::begin_panic_handler::{{closure}}::hb5f5963570096b29
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:674:13
[INFO] [stdout]   15:     0x59197d0017d9 - std::sys::backtrace::__rust_end_short_backtrace::h6208cedc1922feda
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:170:18
[INFO] [stdout]   16:     0x59197d0028cc - rust_begin_unwind
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:665:5
[INFO] [stdout]   17:     0x59197cf00080 - core::panicking::panic_fmt::h0c3082644d1bf418
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panicking.rs:74:14
[INFO] [stdout]   18:     0x59197cf098e3 - core::panicking::panic_display::haebb95bbc2980f94
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panicking.rs:264:5
[INFO] [stdout]   19:     0x59197cf13bc7 - assert_cmd::assert::AssertError::panic::hd1f72b2291399986
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/assert_cmd-2.0.4/src/assert.rs:1036:9
[INFO] [stdout]   20:     0x59197cf05e47 - core::ops::function::FnOnce::call_once::h644454aa2a435deb
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   21:     0x59197cf0f360 - core::result::Result<T,E>::unwrap_or_else::h04098f468373099f
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/result.rs:1458:23
[INFO] [stdout]   22:     0x59197cf13176 - assert_cmd::assert::Assert::success::h6ea6019169935b96
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/assert_cmd-2.0.4/src/assert.rs:156:9
[INFO] [stdout]   23:     0x59197cf048a3 - cli::run_read_file::h6b87e3460ac34d18
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/cli.rs:59:5
[INFO] [stdout]   24:     0x59197cf0546e - cli::test_bytes::h207f38cf1096b8c8
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/cli.rs:132:5
[INFO] [stdout]   25:     0x59197cf05437 - cli::test_bytes::{{closure}}::h796ab25e9cc57191
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/cli.rs:131:16
[INFO] [stdout]   26:     0x59197cf025a6 - core::ops::function::FnOnce::call_once::hc241e4c04dc1d65f
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   27:     0x59197cf98a1b - core::ops::function::FnOnce::call_once::h109cf8051a59b34e
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   28:     0x59197cf98a1b - test::__rust_begin_short_backtrace::hf4fff89d377446ba
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:621:18
[INFO] [stdout]   29:     0x59197cf98257 - test::run_test_in_process::{{closure}}::h0e39181dd7ee5a43
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:644:60
[INFO] [stdout]   30:     0x59197cf98257 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc5a66a30f0bdfd1f
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   31:     0x59197cf98257 - std::panicking::try::do_call::h873b7cf639554a5e
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40
[INFO] [stdout]   32:     0x59197cf98257 - std::panicking::try::hdb19862fad9c8bd1
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19
[INFO] [stdout]   33:     0x59197cf98257 - std::panic::catch_unwind::h281fe732d236d260
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14
[INFO] [stdout]   34:     0x59197cf98257 - test::run_test_in_process::h949b6df8457ed338
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:644:27
[INFO] [stdout]   35:     0x59197cf98257 - test::run_test::{{closure}}::h52c556a6d4740e10
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:565:43
[INFO] [stdout]   36:     0x59197cf5d534 - test::run_test::{{closure}}::h4237f6381c45ccb9
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:595:41
[INFO] [stdout]   37:     0x59197cf5d534 - std::sys::backtrace::__rust_begin_short_backtrace::h505c97a579eca628
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:154:18
[INFO] [stdout]   38:     0x59197cf60bfe - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h9e86b2e2bc107ea3
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/thread/mod.rs:538:17
[INFO] [stdout]   39:     0x59197cf60bfe - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h8b06ddb275ff4a25
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   40:     0x59197cf60bfe - std::panicking::try::do_call::hb26ecd7cd9a9355d
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40
[INFO] [stdout]   41:     0x59197cf60bfe - std::panicking::try::h8ddeca9d705f9069
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19
[INFO] [stdout]   42:     0x59197cf60bfe - std::panic::catch_unwind::h49e1c33078844c46
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14
[INFO] [stdout]   43:     0x59197cf60bfe - std::thread::Builder::spawn_unchecked_::{{closure}}::h6073db6ff56ad35d
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/thread/mod.rs:537:30
[INFO] [stdout]   44:     0x59197cf60bfe - core::ops::function::FnOnce::call_once{{vtable.shim}}::h2c5a5f3779c774f1
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   45:     0x59197d00771b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf75717d9f28faebf
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2454:9
[INFO] [stdout]   46:     0x59197d00771b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7bd883a5f3c5f3c1
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2454:9
[INFO] [stdout]   47:     0x59197d00771b - std::sys::pal::unix::thread::Thread::new::thread_start::hcc78f3943333fa94
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/pal/unix/thread.rs:105:17
[INFO] [stdout]   48:     0x789a71af0ac3 - <unknown>
[INFO] [stdout]   49:     0x789a71b81a04 - clone
[INFO] [stdout]   50:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     read_lines
[INFO] [stdout]     read_lines_from_files
[INFO] [stdout]     test_bytes
[INFO] [stdout]     test_empty
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 4 passed; 4 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0bf7b45a6a468c80d2c203056b6fdf0ebbeff74035f94a0f3cfe3085ea7dd1a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bf7b45a6a468c80d2c203056b6fdf0ebbeff74035f94a0f3cfe3085ea7dd1a5", kill_on_drop: false }`
[INFO] [stdout] 0bf7b45a6a468c80d2c203056b6fdf0ebbeff74035f94a0f3cfe3085ea7dd1a5
