[INFO] fetching crate earmuffs 0.1.0...
[INFO] testing earmuffs-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate earmuffs 0.1.0 into /workspace/builds/worker-17/source
[INFO] validating manifest of crates.io crate earmuffs 0.1.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate earmuffs 0.1.0
[INFO] finished tweaking crates.io crate earmuffs 0.1.0
[INFO] tweaked toml for crates.io crate earmuffs 0.1.0 written to /workspace/builds/worker-17/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9ee662bfcf0d100073deebd329823ceb297175f6be2e9b2260fddf7a1a3fe779
[INFO] running `Command { std: "docker" "start" "-a" "9ee662bfcf0d100073deebd329823ceb297175f6be2e9b2260fddf7a1a3fe779", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ee662bfcf0d100073deebd329823ceb297175f6be2e9b2260fddf7a1a3fe779", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ee662bfcf0d100073deebd329823ceb297175f6be2e9b2260fddf7a1a3fe779", kill_on_drop: false }`
[INFO] [stdout] 9ee662bfcf0d100073deebd329823ceb297175f6be2e9b2260fddf7a1a3fe779
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e9a49eac4e54ad5987babd9ebd26dd0c3a4805c4383450b4f0dc2f7188bb129
[INFO] running `Command { std: "docker" "start" "-a" "0e9a49eac4e54ad5987babd9ebd26dd0c3a4805c4383450b4f0dc2f7188bb129", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling earmuffs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.50s
[INFO] running `Command { std: "docker" "inspect" "0e9a49eac4e54ad5987babd9ebd26dd0c3a4805c4383450b4f0dc2f7188bb129", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e9a49eac4e54ad5987babd9ebd26dd0c3a4805c4383450b4f0dc2f7188bb129", kill_on_drop: false }`
[INFO] [stdout] 0e9a49eac4e54ad5987babd9ebd26dd0c3a4805c4383450b4f0dc2f7188bb129
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d20b5ad6f7c62d521c5d319beeb57eb3f9525f310ff72d48cd80bf5d4079325e
[INFO] running `Command { std: "docker" "start" "-a" "d20b5ad6f7c62d521c5d319beeb57eb3f9525f310ff72d48cd80bf5d4079325e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling earmuffs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `Command { std: "docker" "inspect" "d20b5ad6f7c62d521c5d319beeb57eb3f9525f310ff72d48cd80bf5d4079325e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d20b5ad6f7c62d521c5d319beeb57eb3f9525f310ff72d48cd80bf5d4079325e", kill_on_drop: false }`
[INFO] [stdout] d20b5ad6f7c62d521c5d319beeb57eb3f9525f310ff72d48cd80bf5d4079325e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cc7442c22769cf55d4b7b499742e4c0a7827600d7ff01926fce5c0fd94ab61f1
[INFO] running `Command { std: "docker" "start" "-a" "cc7442c22769cf55d4b7b499742e4c0a7827600d7ff01926fce5c0fd94ab61f1", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/earmuffs-c9774f0a3f337671)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cc7442c22769cf55d4b7b499742e4c0a7827600d7ff01926fce5c0fd94ab61f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc7442c22769cf55d4b7b499742e4c0a7827600d7ff01926fce5c0fd94ab61f1", kill_on_drop: false }`
[INFO] [stdout] cc7442c22769cf55d4b7b499742e4c0a7827600d7ff01926fce5c0fd94ab61f1