[INFO] cloning repository https://github.com/AirCfr/hs24
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AirCfr/hs24" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAirCfr%2Fhs24", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAirCfr%2Fhs24'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eb0a58c45191101b1b9d7459a68955e695a65938
[INFO] checking AirCfr/hs24 against try#9d63f825c0d409b0e1743a2c84b33f86965e5929 for pr-136968
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAirCfr%2Fhs24" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AirCfr/hs24 on toolchain 9d63f825c0d409b0e1743a2c84b33f86965e5929
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9d63f825c0d409b0e1743a2c84b33f86965e5929" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AirCfr/hs24
[INFO] finished tweaking git repo https://github.com/AirCfr/hs24
[INFO] tweaked toml for git repo https://github.com/AirCfr/hs24 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/AirCfr/hs24 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" "+9d63f825c0d409b0e1743a2c84b33f86965e5929" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9d63f825c0d409b0e1743a2c84b33f86965e5929" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6fa447edec033c9be98773e630e1192d727279f2230578a9a01b003122ab806a
[INFO] running `Command { std: "docker" "start" "-a" "6fa447edec033c9be98773e630e1192d727279f2230578a9a01b003122ab806a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fa447edec033c9be98773e630e1192d727279f2230578a9a01b003122ab806a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fa447edec033c9be98773e630e1192d727279f2230578a9a01b003122ab806a", kill_on_drop: false }`
[INFO] [stdout] 6fa447edec033c9be98773e630e1192d727279f2230578a9a01b003122ab806a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9d63f825c0d409b0e1743a2c84b33f86965e5929" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36a29c533e130b37b5969869d84d8ea1401a4c623eb2287e06d938bd8b48daec
[INFO] running `Command { std: "docker" "start" "-a" "36a29c533e130b37b5969869d84d8ea1401a4c623eb2287e06d938bd8b48daec", kill_on_drop: false }`
[INFO] [stderr]     Checking hs24 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `io::BufReader` and `path::PathBuf`
[INFO] [stdout]  --> src/main.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{path::PathBuf, thread::sleep, io::BufReader, fs::read, ffi::OsString, os::unix::prelude::OsStringExt};
[INFO] [stdout]   |           ^^^^^^^^^^^^^                 ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `os::unix::process::CommandExt`
[INFO] [stdout]  --> src/parser.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 |     use std::{os::unix::process::CommandExt};
[INFO] [stdout]   |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `io::BufReader` and `path::PathBuf`
[INFO] [stdout]  --> src/main.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{path::PathBuf, thread::sleep, io::BufReader, fs::read, ffi::OsString, os::unix::prelude::OsStringExt};
[INFO] [stdout]   |           ^^^^^^^^^^^^^                 ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `os::unix::process::CommandExt`
[INFO] [stdout]  --> src/parser.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 |     use std::{os::unix::process::CommandExt};
[INFO] [stdout]   |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut ch = std::process::Command::new("/home/rc/code/projet/hs24/a.out").spawn();
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut ch = std::process::Command::new("/home/rc/code/projet/hs24/a.out").spawn();
[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: `x`
[INFO] [stdout]   --> src/main.rs:29:55
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let mut r = read("/etc/hostname").unwrap_or_else(|x|{Vec::from([145,162,162])});
[INFO] [stdout]    |                                                       ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/main.rs:29:55
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let mut r = read("/etc/hostname").unwrap_or_else(|x|{Vec::from([145,162,162])});
[INFO] [stdout]    |                                                       ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `teste` is never used
[INFO] [stdout]   --> src/main.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn teste(){
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `teste` is never used
[INFO] [stdout]   --> src/main.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn teste(){
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "36a29c533e130b37b5969869d84d8ea1401a4c623eb2287e06d938bd8b48daec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36a29c533e130b37b5969869d84d8ea1401a4c623eb2287e06d938bd8b48daec", kill_on_drop: false }`
[INFO] [stdout] 36a29c533e130b37b5969869d84d8ea1401a4c623eb2287e06d938bd8b48daec