[INFO] cloning repository https://github.com/mediocreeee/chiefbook
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mediocreeee/chiefbook" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmediocreeee%2Fchiefbook", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmediocreeee%2Fchiefbook'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 155ac25918313d0f15714adbb3841c7030aad0d5
[INFO] checking mediocreeee/chiefbook against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmediocreeee%2Fchiefbook" "/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/mediocreeee/chiefbook on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mediocreeee/chiefbook
[INFO] finished tweaking git repo https://github.com/mediocreeee/chiefbook
[INFO] tweaked toml for git repo https://github.com/mediocreeee/chiefbook written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mediocreeee/chiefbook 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tui v0.13.0
[INFO] [stderr]   Downloaded pipers v1.0.1
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2423828f636e07827033d1276e28be18d78b3d1cce3f7170016db68a2345c2bd
[INFO] running `Command { std: "docker" "start" "-a" "2423828f636e07827033d1276e28be18d78b3d1cce3f7170016db68a2345c2bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2423828f636e07827033d1276e28be18d78b3d1cce3f7170016db68a2345c2bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2423828f636e07827033d1276e28be18d78b3d1cce3f7170016db68a2345c2bd", kill_on_drop: false }`
[INFO] [stdout] 2423828f636e07827033d1276e28be18d78b3d1cce3f7170016db68a2345c2bd
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 206ca1621dbe65d95a1cb7cb03867b6d50355b64b306b1f3714507e808909055
[INFO] running `Command { std: "docker" "start" "-a" "206ca1621dbe65d95a1cb7cb03867b6d50355b64b306b1f3714507e808909055", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking unicode-segmentation v1.7.0
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking pipers v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking termion v1.5.5
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking tui v0.13.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking chiefbook v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::ffi::OsStr`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::ffi::OsStr;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ffi::OsString`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::ffi::OsString;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Constraint`, `Direction`, `Layout`
[INFO] [stdout]   --> src/main.rs:18:14
[INFO] [stdout]    |
[INFO] [stdout] 18 |     layout::{Constraint, Direction, Layout},
[INFO] [stdout]    |              ^^^^^^^^^^  ^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `regex::Regex`
[INFO] [stdout]   --> src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | use regex::Regex;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ffi::OsStr`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::ffi::OsStr;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ffi::OsString`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::ffi::OsString;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Constraint`, `Direction`, `Layout`
[INFO] [stdout]   --> src/main.rs:18:14
[INFO] [stdout]    |
[INFO] [stdout] 18 |     layout::{Constraint, Direction, Layout},
[INFO] [stdout]    |              ^^^^^^^^^^  ^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `regex::Regex`
[INFO] [stdout]   --> src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | use regex::Regex;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file_name`
[INFO] [stdout]   --> src/main.rs:80:25
[INFO] [stdout]    |
[INFO] [stdout] 80 |                     let file_name = entry.file_name();
[INFO] [stdout]    |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_files_from_dir` is never used
[INFO] [stdout]    --> src/main.rs:243:4
[INFO] [stdout]     |
[INFO] [stdout] 243 | fn get_files_from_dir(folder: String) -> Vec<String> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `input_handle`, `ignore_exit_key`, and `tick_handle` are never read
[INFO] [stdout]   --> src/event.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Events {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 21 |     rx: mpsc::Receiver<Event<Key>>,
[INFO] [stdout] 22 |     input_handle: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 23 |     ignore_exit_key: Arc<AtomicBool>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 24 |     tick_handle: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `disable_exit_key` and `enable_exit_key` are never used
[INFO] [stdout]   --> src/event.rs:88:12
[INFO] [stdout]    |
[INFO] [stdout] 42 | impl Events {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 88 |     pub fn disable_exit_key(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 92 |     pub fn enable_exit_key(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file_name`
[INFO] [stdout]   --> src/main.rs:80:25
[INFO] [stdout]    |
[INFO] [stdout] 80 |                     let file_name = entry.file_name();
[INFO] [stdout]    |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `author`, `year`, `total_pages`, and `current_page` are never read
[INFO] [stdout]   --> src/main.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     struct Document {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 34 |         author: String,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 35 |         year: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 36 |         // total_pages: u32,
[INFO] [stdout] 37 |         total_pages: String,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 38 |         current_page: u32,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `unselect` is never used
[INFO] [stdout]    --> src/main.rs:182:16
[INFO] [stdout]     |
[INFO] [stdout] 70  |     impl<'a> Documents {
[INFO] [stdout]     |     ------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 182 |         pub fn unselect(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_files_from_dir` is never used
[INFO] [stdout]    --> src/main.rs:243:4
[INFO] [stdout]     |
[INFO] [stdout] 243 | fn get_files_from_dir(folder: String) -> Vec<String> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `input_handle`, `ignore_exit_key`, and `tick_handle` are never read
[INFO] [stdout]   --> src/event.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Events {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 21 |     rx: mpsc::Receiver<Event<Key>>,
[INFO] [stdout] 22 |     input_handle: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 23 |     ignore_exit_key: Arc<AtomicBool>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 24 |     tick_handle: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `disable_exit_key` and `enable_exit_key` are never used
[INFO] [stdout]   --> src/event.rs:88:12
[INFO] [stdout]    |
[INFO] [stdout] 42 | impl Events {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 88 |     pub fn disable_exit_key(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 92 |     pub fn enable_exit_key(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.03s
[INFO] running `Command { std: "docker" "inspect" "206ca1621dbe65d95a1cb7cb03867b6d50355b64b306b1f3714507e808909055", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "206ca1621dbe65d95a1cb7cb03867b6d50355b64b306b1f3714507e808909055", kill_on_drop: false }`
[INFO] [stdout] 206ca1621dbe65d95a1cb7cb03867b6d50355b64b306b1f3714507e808909055