[INFO] fetching crate scan-lib 0.1.1...
[INFO] testing scan-lib-0.1.1 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate scan-lib 0.1.1 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate scan-lib 0.1.1
[INFO] finished tweaking crates.io crate scan-lib 0.1.1
[INFO] tweaked toml for crates.io crate scan-lib 0.1.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate scan-lib 0.1.1 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] fbfa6b9833d05392ae6423a50618ca8ed02dab697114004ec6dfacfa47fa899f
[INFO] running `Command { std: "docker" "start" "fbfa6b9833d05392ae6423a50618ca8ed02dab697114004ec6dfacfa47fa899f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fbfa6b9833d05392ae6423a50618ca8ed02dab697114004ec6dfacfa47fa899f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "fbfa6b9833d05392ae6423a50618ca8ed02dab697114004ec6dfacfa47fa899f" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fbfa6b9833d05392ae6423a50618ca8ed02dab697114004ec6dfacfa47fa899f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "fbfa6b9833d05392ae6423a50618ca8ed02dab697114004ec6dfacfa47fa899f" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling scan-lib v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `blacklist_file_write` is never read
[INFO] [stdout]   --> src/lib.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct DirectorySearcher{
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] 25 |     blacklist: HashSet<String>,
[INFO] [stdout] 26 |     blacklist_file_write: File,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `search` and `get_paths` are never used
[INFO] [stdout]    --> src/lib.rs:77:19
[INFO] [stdout]     |
[INFO] [stdout]  29 | impl DirectorySearcher {
[INFO] [stdout]     | ---------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  77 |     pub(crate) fn search(&mut self, root_path: &str, be_searched_: &str) -> Vec<String> {
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 111 |     fn get_paths(&mut self, path: &str) -> Vec<String> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parent_dir` is never used
[INFO] [stdout]  --> src/dir_operations.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(crate) fn parent_dir() -> String {
[INFO] [stdout]   |               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_dir` is never used
[INFO] [stdout]   --> src/dir_operations.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub(crate) fn is_dir(path: &String) -> bool {
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print` is never used
[INFO] [stdout]   --> src/path_manipulation.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub(crate) fn print(paths: Vec<String>) {
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "fbfa6b9833d05392ae6423a50618ca8ed02dab697114004ec6dfacfa47fa899f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "fbfa6b9833d05392ae6423a50618ca8ed02dab697114004ec6dfacfa47fa899f" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stdout] warning: field `blacklist_file_write` is never read
[INFO] [stdout]   --> src/lib.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct DirectorySearcher{
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] 25 |     blacklist: HashSet<String>,
[INFO] [stdout] 26 |     blacklist_file_write: File,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `search` and `get_paths` are never used
[INFO] [stdout]    --> src/lib.rs:77:19
[INFO] [stdout]     |
[INFO] [stdout]  29 | impl DirectorySearcher {
[INFO] [stdout]     | ---------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  77 |     pub(crate) fn search(&mut self, root_path: &str, be_searched_: &str) -> Vec<String> {
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 111 |     fn get_paths(&mut self, path: &str) -> Vec<String> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parent_dir` is never used
[INFO] [stdout]  --> src/dir_operations.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(crate) fn parent_dir() -> String {
[INFO] [stdout]   |               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_dir` is never used
[INFO] [stdout]   --> src/dir_operations.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub(crate) fn is_dir(path: &String) -> bool {
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print` is never used
[INFO] [stdout]   --> src/path_manipulation.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub(crate) fn print(paths: Vec<String>) {
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling scan-lib v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `parent_dir` is never used
[INFO] [stdout]  --> src/dir_operations.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(crate) fn parent_dir() -> String {
[INFO] [stdout]   |               ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print` is never used
[INFO] [stdout]   --> src/path_manipulation.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub(crate) fn print(paths: Vec<String>) {
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "fbfa6b9833d05392ae6423a50618ca8ed02dab697114004ec6dfacfa47fa899f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "fbfa6b9833d05392ae6423a50618ca8ed02dab697114004ec6dfacfa47fa899f" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: field `blacklist_file_write` is never read
[INFO] [stderr]   --> src/lib.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub struct DirectorySearcher{
[INFO] [stderr]    |            ----------------- field in this struct
[INFO] [stderr] 25 |     blacklist: HashSet<String>,
[INFO] [stderr] 26 |     blacklist_file_write: File,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: methods `search` and `get_paths` are never used
[INFO] [stderr]    --> src/lib.rs:77:19
[INFO] [stderr]     |
[INFO] [stderr]  29 | impl DirectorySearcher {
[INFO] [stderr]     | ---------------------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr]  77 |     pub(crate) fn search(&mut self, root_path: &str, be_searched_: &str) -> Vec<String> {
[INFO] [stderr]     |                   ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 111 |     fn get_paths(&mut self, path: &str) -> Vec<String> {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `parent_dir` is never used
[INFO] [stderr]  --> src/dir_operations.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub(crate) fn parent_dir() -> String {
[INFO] [stderr]   |               ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `is_dir` is never used
[INFO] [stderr]   --> src/dir_operations.rs:14:15
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub(crate) fn is_dir(path: &String) -> bool {
[INFO] [stderr]    |               ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `print` is never used
[INFO] [stderr]   --> src/path_manipulation.rs:27:15
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub(crate) fn print(paths: Vec<String>) {
[INFO] [stderr]    |               ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `scan-lib` (lib) generated 5 warnings
[INFO] [stderr] warning: function `parent_dir` is never used
[INFO] [stderr]  --> src/dir_operations.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub(crate) fn parent_dir() -> String {
[INFO] [stderr]   |               ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `scan-lib` (lib test) generated 2 warnings (1 duplicate)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/deps/scan_lib-0a17e97a8f4f5acd)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::is_working ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::is_working stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'tests::is_working' (149) panicked at src/file_operations.rs:4:40:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5c61db86d3a1 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x5c61db88245a - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    2:     0x5c61db871b2c - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x5c61db849536 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x5c61db8658f9 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]    5:     0x5c61db801a30 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]    6:     0x5c61db865ab2 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x5c61db8495e2 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x5c61db8422c9 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x5c61db84a1dd - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]   10:     0x5c61db882b8c - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]   11:     0x5c61db882962 - core[df12db4294e9bfd3]::result::unwrap_failed
[INFO] [stdout]   12:     0x5c61db7f4811 - scan_lib[f271c9b181a265ab]::file_operations::new_file_return_append
[INFO] [stdout]   13:     0x5c61db7f1f15 - <scan_lib[f271c9b181a265ab]::DirectorySearcher>::new
[INFO] [stdout]   14:     0x5c61db7f4898 - scan_lib[f271c9b181a265ab]::tests::is_working
[INFO] [stdout]   15:     0x5c61db7f3d79 - <scan_lib[f271c9b181a265ab]::tests::is_working::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   16:     0x5c61db7f4d1b - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]   17:     0x5c61db802385 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]   18:     0x5c61db7fbc44 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stdout]   19:     0x5c61db8054e2 - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   20:     0x5c61db86cc79 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   21:     0x728cb36a8dfa - <unknown>
[INFO] [stdout]   22:     0x728cb373c3d4 - clone
[INFO] [stdout]   23:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::is_working
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "fbfa6b9833d05392ae6423a50618ca8ed02dab697114004ec6dfacfa47fa899f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbfa6b9833d05392ae6423a50618ca8ed02dab697114004ec6dfacfa47fa899f", kill_on_drop: false }`
[INFO] [stdout] fbfa6b9833d05392ae6423a50618ca8ed02dab697114004ec6dfacfa47fa899f
