[INFO] cloning repository https://github.com/yppan/rusty-huff-bin
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yppan/rusty-huff-bin" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyppan%2Frusty-huff-bin", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyppan%2Frusty-huff-bin'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d5d75043af7b73717e1df5a68e2bc0b079e95f97
[INFO] testing yppan/rusty-huff-bin against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyppan%2Frusty-huff-bin" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yppan/rusty-huff-bin on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yppan/rusty-huff-bin
[INFO] finished tweaking git repo https://github.com/yppan/rusty-huff-bin
[INFO] tweaked toml for git repo https://github.com/yppan/rusty-huff-bin written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/yppan/rusty-huff-bin already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a6e2777826c957572c8ebe8c8f688bcb0620a24380c3629c6f08cd9c608ad43a
[INFO] running `Command { std: "docker" "start" "-a" "a6e2777826c957572c8ebe8c8f688bcb0620a24380c3629c6f08cd9c608ad43a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6e2777826c957572c8ebe8c8f688bcb0620a24380c3629c6f08cd9c608ad43a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6e2777826c957572c8ebe8c8f688bcb0620a24380c3629c6f08cd9c608ad43a", kill_on_drop: false }`
[INFO] [stdout] a6e2777826c957572c8ebe8c8f688bcb0620a24380c3629c6f08cd9c608ad43a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 052b093e3627e8d642feaee046b54f766afd631e37f9afadb315c733aa65dd5f
[INFO] running `Command { std: "docker" "start" "-a" "052b093e3627e8d642feaee046b54f766afd631e37f9afadb315c733aa65dd5f", kill_on_drop: false }`
[INFO] [stderr]    Compiling rusty-huff-img v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]   --> src/main.rs:51:21
[INFO] [stdout]    |
[INFO] [stdout] 51 |         if let Some(file) = matches.value_of("decompress") {
[INFO] [stdout]    |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.18s
[INFO] running `Command { std: "docker" "inspect" "052b093e3627e8d642feaee046b54f766afd631e37f9afadb315c733aa65dd5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "052b093e3627e8d642feaee046b54f766afd631e37f9afadb315c733aa65dd5f", kill_on_drop: false }`
[INFO] [stdout] 052b093e3627e8d642feaee046b54f766afd631e37f9afadb315c733aa65dd5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 94f9d88a2c1b0494bedfac00b9a55e0615d8a64074c9f4ab7005efbc1f725602
[INFO] running `Command { std: "docker" "start" "-a" "94f9d88a2c1b0494bedfac00b9a55e0615d8a64074c9f4ab7005efbc1f725602", kill_on_drop: false }`
[INFO] [stderr]    Compiling rusty-huff-img v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]   --> src/main.rs:51:21
[INFO] [stdout]    |
[INFO] [stdout] 51 |         if let Some(file) = matches.value_of("decompress") {
[INFO] [stdout]    |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "94f9d88a2c1b0494bedfac00b9a55e0615d8a64074c9f4ab7005efbc1f725602", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94f9d88a2c1b0494bedfac00b9a55e0615d8a64074c9f4ab7005efbc1f725602", kill_on_drop: false }`
[INFO] [stdout] 94f9d88a2c1b0494bedfac00b9a55e0615d8a64074c9f4ab7005efbc1f725602
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 13632448f250f6d9db430cd48a8f3eb77505454525aeaf3815a5ae8955e305d2
[INFO] running `Command { std: "docker" "start" "-a" "13632448f250f6d9db430cd48a8f3eb77505454525aeaf3815a5ae8955e305d2", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `file`
[INFO] [stderr]   --> src/main.rs:51:21
[INFO] [stderr]    |
[INFO] [stderr] 51 |         if let Some(file) = matches.value_of("decompress") {
[INFO] [stderr]    |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rusty-huff-img` (bin "rusty-huff-img" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rusty_huff_img-6635cc0126279376)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rusty_huff_img-e24679ec4c4c8b0e)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rusty-huff-img
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "13632448f250f6d9db430cd48a8f3eb77505454525aeaf3815a5ae8955e305d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13632448f250f6d9db430cd48a8f3eb77505454525aeaf3815a5ae8955e305d2", kill_on_drop: false }`
[INFO] [stdout] 13632448f250f6d9db430cd48a8f3eb77505454525aeaf3815a5ae8955e305d2