[INFO] cloning repository https://github.com/oloshe/rust-huffman
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/oloshe/rust-huffman" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foloshe%2Frust-huffman", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foloshe%2Frust-huffman'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 71ea11ea93391a30c33c321e56b1abed3efdd0af
[INFO] testing oloshe/rust-huffman against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foloshe%2Frust-huffman" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/oloshe/rust-huffman on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/oloshe/rust-huffman
[INFO] finished tweaking git repo https://github.com/oloshe/rust-huffman
[INFO] tweaked toml for git repo https://github.com/oloshe/rust-huffman written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/oloshe/rust-huffman already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c1b06c151348eed6d61610ac3614972a9b0b64be1a5848251427c4a3f1b53405
[INFO] running `Command { std: "docker" "start" "-a" "c1b06c151348eed6d61610ac3614972a9b0b64be1a5848251427c4a3f1b53405", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1b06c151348eed6d61610ac3614972a9b0b64be1a5848251427c4a3f1b53405", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1b06c151348eed6d61610ac3614972a9b0b64be1a5848251427c4a3f1b53405", kill_on_drop: false }`
[INFO] [stdout] c1b06c151348eed6d61610ac3614972a9b0b64be1a5848251427c4a3f1b53405
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7a7a9e28e34ae10e40872197c2594a21deb8fb76a412632cdbd7c34383d144fc
[INFO] running `Command { std: "docker" "start" "-a" "7a7a9e28e34ae10e40872197c2594a21deb8fb76a412632cdbd7c34383d144fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-huffman v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.93s
[INFO] running `Command { std: "docker" "inspect" "7a7a9e28e34ae10e40872197c2594a21deb8fb76a412632cdbd7c34383d144fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a7a9e28e34ae10e40872197c2594a21deb8fb76a412632cdbd7c34383d144fc", kill_on_drop: false }`
[INFO] [stdout] 7a7a9e28e34ae10e40872197c2594a21deb8fb76a412632cdbd7c34383d144fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f296acf4a877657a363a261773a2b6662476d6f79f4535dcf6aa28882a29ce22
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f296acf4a877657a363a261773a2b6662476d6f79f4535dcf6aa28882a29ce22", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-huffman v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `Command { std: "docker" "inspect" "f296acf4a877657a363a261773a2b6662476d6f79f4535dcf6aa28882a29ce22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f296acf4a877657a363a261773a2b6662476d6f79f4535dcf6aa28882a29ce22", kill_on_drop: false }`
[INFO] [stdout] f296acf4a877657a363a261773a2b6662476d6f79f4535dcf6aa28882a29ce22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0bfc612a6b38387371bade29d69770242ad8e3f377fd110a06129d5f251a86cf
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0bfc612a6b38387371bade29d69770242ad8e3f377fd110a06129d5f251a86cf", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_huffman-31590ba4fff06749)
[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" "0bfc612a6b38387371bade29d69770242ad8e3f377fd110a06129d5f251a86cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bfc612a6b38387371bade29d69770242ad8e3f377fd110a06129d5f251a86cf", kill_on_drop: false }`
[INFO] [stdout] 0bfc612a6b38387371bade29d69770242ad8e3f377fd110a06129d5f251a86cf