[INFO] fetching crate mtk 0.3.5...
[INFO] testing mtk-0.3.5 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate mtk 0.3.5 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate mtk 0.3.5 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mtk 0.3.5
[INFO] finished tweaking crates.io crate mtk 0.3.5
[INFO] tweaked toml for crates.io crate mtk 0.3.5 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a32bacd7ac3fbb3a385f23f14eb5779da05f924bf0b4138427653a9571e591a7
[INFO] running `Command { std: "docker" "start" "-a" "a32bacd7ac3fbb3a385f23f14eb5779da05f924bf0b4138427653a9571e591a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a32bacd7ac3fbb3a385f23f14eb5779da05f924bf0b4138427653a9571e591a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a32bacd7ac3fbb3a385f23f14eb5779da05f924bf0b4138427653a9571e591a7", kill_on_drop: false }`
[INFO] [stdout] a32bacd7ac3fbb3a385f23f14eb5779da05f924bf0b4138427653a9571e591a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 87a5447b0afda96ce479d1d5a632efd043c1ab846410f62d727ec17391210e15
[INFO] running `Command { std: "docker" "start" "-a" "87a5447b0afda96ce479d1d5a632efd043c1ab846410f62d727ec17391210e15", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling mtk v0.3.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "87a5447b0afda96ce479d1d5a632efd043c1ab846410f62d727ec17391210e15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87a5447b0afda96ce479d1d5a632efd043c1ab846410f62d727ec17391210e15", kill_on_drop: false }`
[INFO] [stdout] 87a5447b0afda96ce479d1d5a632efd043c1ab846410f62d727ec17391210e15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1aad47655fad538f565f455c00142e36783ee3edb124d5947a37ef03197fb89
[INFO] running `Command { std: "docker" "start" "-a" "e1aad47655fad538f565f455c00142e36783ee3edb124d5947a37ef03197fb89", kill_on_drop: false }`
[INFO] [stderr]    Compiling mtk v0.3.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 11.30s
[INFO] running `Command { std: "docker" "inspect" "e1aad47655fad538f565f455c00142e36783ee3edb124d5947a37ef03197fb89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1aad47655fad538f565f455c00142e36783ee3edb124d5947a37ef03197fb89", kill_on_drop: false }`
[INFO] [stdout] e1aad47655fad538f565f455c00142e36783ee3edb124d5947a37ef03197fb89
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 757f9f1807f347728b97a51ebd611e0a10ce702b83fc3b25b98056aba9b5ae05
[INFO] running `Command { std: "docker" "start" "-a" "757f9f1807f347728b97a51ebd611e0a10ce702b83fc3b25b98056aba9b5ae05", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.25s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mtk-45bdec00b4320875)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mtk
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test_app ... 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] [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" "757f9f1807f347728b97a51ebd611e0a10ce702b83fc3b25b98056aba9b5ae05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "757f9f1807f347728b97a51ebd611e0a10ce702b83fc3b25b98056aba9b5ae05", kill_on_drop: false }`
[INFO] [stdout] 757f9f1807f347728b97a51ebd611e0a10ce702b83fc3b25b98056aba9b5ae05