[INFO] cloning repository https://github.com/0xcuriosity/file_compressor_in_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0xcuriosity/file_compressor_in_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xcuriosity%2Ffile_compressor_in_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xcuriosity%2Ffile_compressor_in_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ff90f980c69871f0a7327cc64a83e6088af604da
[INFO] checking 0xcuriosity/file_compressor_in_rust against master#3f6250a7bb79e600d9036bbc7c8f65af43933643 for pr-147859
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xcuriosity%2Ffile_compressor_in_rust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/0xcuriosity/file_compressor_in_rust
[INFO] finished tweaking git repo https://github.com/0xcuriosity/file_compressor_in_rust
[INFO] tweaked toml for git repo https://github.com/0xcuriosity/file_compressor_in_rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/0xcuriosity/file_compressor_in_rust on toolchain 3f6250a7bb79e600d9036bbc7c8f65af43933643
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3f6250a7bb79e600d9036bbc7c8f65af43933643" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/0xcuriosity/file_compressor_in_rust 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" "+3f6250a7bb79e600d9036bbc7c8f65af43933643" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+3f6250a7bb79e600d9036bbc7c8f65af43933643" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3039586bf347f3d1e1fd722280e89b9714199a4a35a6101fb365ef672207b0d9
[INFO] running `Command { std: "docker" "start" "-a" "3039586bf347f3d1e1fd722280e89b9714199a4a35a6101fb365ef672207b0d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3039586bf347f3d1e1fd722280e89b9714199a4a35a6101fb365ef672207b0d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3039586bf347f3d1e1fd722280e89b9714199a4a35a6101fb365ef672207b0d9", kill_on_drop: false }`
[INFO] [stdout] 3039586bf347f3d1e1fd722280e89b9714199a4a35a6101fb365ef672207b0d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+3f6250a7bb79e600d9036bbc7c8f65af43933643" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b82f84d7761cf1da25b1347baa428ea23db9090d7964441a7e171ff30c41e81
[INFO] running `Command { std: "docker" "start" "-a" "9b82f84d7761cf1da25b1347baa428ea23db9090d7964441a7e171ff30c41e81", kill_on_drop: false }`
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]     Checking cfg-if v1.0.3
[INFO] [stderr]     Checking adler2 v2.0.1
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]     Checking flate2 v1.1.2
[INFO] [stderr]     Checking compression v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::os::unix::process`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::os::unix::process;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::os::unix::process`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::os::unix::process;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "9b82f84d7761cf1da25b1347baa428ea23db9090d7964441a7e171ff30c41e81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b82f84d7761cf1da25b1347baa428ea23db9090d7964441a7e171ff30c41e81", kill_on_drop: false }`
[INFO] [stdout] 9b82f84d7761cf1da25b1347baa428ea23db9090d7964441a7e171ff30c41e81
