[INFO] cloning repository https://github.com/IhoulineInes/rust_shell
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/IhoulineInes/rust_shell" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIhoulineInes%2Frust_shell"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIhoulineInes%2Frust_shell'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c27b851c60dc5e0e0437052106d99c8a362b2100
[INFO] checking IhoulineInes/rust_shell against try#96b3c169cd2d8959926fa240f10342f1659f8ae3 for pr-71896
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIhoulineInes%2Frust_shell" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/IhoulineInes/rust_shell on toolchain 96b3c169cd2d8959926fa240f10342f1659f8ae3
[INFO] running `"/workspace/cargo-home/bin/cargo" "+96b3c169cd2d8959926fa240f10342f1659f8ae3" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/IhoulineInes/rust_shell
[INFO] finished tweaking git repo https://github.com/IhoulineInes/rust_shell
[INFO] tweaked toml for git repo https://github.com/IhoulineInes/rust_shell written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/IhoulineInes/rust_shell already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+96b3c169cd2d8959926fa240f10342f1659f8ae3" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+96b3c169cd2d8959926fa240f10342f1659f8ae3" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 41a013a5bb7bf1fd4b22584809d3c11c8405925d5186b0eeeba1b918ab0be025
[INFO] running `"docker" "start" "-a" "41a013a5bb7bf1fd4b22584809d3c11c8405925d5186b0eeeba1b918ab0be025"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking tp_shell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/main.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 8  | /     loop{
[INFO] [stderr] 9  | |     {
[INFO] [stderr] 10 | |         let mut handle = stdout.lock(); // STDOUT locked
[INFO] [stderr] 11 | |         handle.write_all(b"-->")?; // locked
[INFO] [stderr] ...  |
[INFO] [stderr] 42 | |         .expect("whopsiel wc failled to launch");
[INFO] [stderr] 43 | |     }
[INFO] [stderr]    | |_____- any code following this expression is unreachable
[INFO] [stderr] ...
[INFO] [stderr] 46 |       Ok(())
[INFO] [stderr]    |       ^^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `process`
[INFO] [stderr]   --> src/main.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let process = Command::new("wc")
[INFO] [stderr]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_process`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/main.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 8  | /     loop{
[INFO] [stderr] 9  | |     {
[INFO] [stderr] 10 | |         let mut handle = stdout.lock(); // STDOUT locked
[INFO] [stderr] 11 | |         handle.write_all(b"-->")?; // locked
[INFO] [stderr] ...  |
[INFO] [stderr] 42 | |         .expect("whopsiel wc failled to launch");
[INFO] [stderr] 43 | |     }
[INFO] [stderr]    | |_____- any code following this expression is unreachable
[INFO] [stderr] ...
[INFO] [stderr] 46 |       Ok(())
[INFO] [stderr]    |       ^^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `process`
[INFO] [stderr]   --> src/main.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let process = Command::new("wc")
[INFO] [stderr]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_process`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `"docker" "inspect" "41a013a5bb7bf1fd4b22584809d3c11c8405925d5186b0eeeba1b918ab0be025"`
[INFO] running `"docker" "rm" "-f" "41a013a5bb7bf1fd4b22584809d3c11c8405925d5186b0eeeba1b918ab0be025"`
[INFO] [stdout] 41a013a5bb7bf1fd4b22584809d3c11c8405925d5186b0eeeba1b918ab0be025