[INFO] fetching crate mkserial 1.0.2...
[INFO] testing mkserial-1.0.2 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate mkserial 1.0.2 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate mkserial 1.0.2 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 mkserial 1.0.2
[INFO] finished tweaking crates.io crate mkserial 1.0.2
[INFO] tweaked toml for crates.io crate mkserial 1.0.2 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate mkserial 1.0.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 87575be0d6940e8bc075f994d5869c9bca37dd28ef76e907ffaaf618d19ac340
[INFO] running `Command { std: "docker" "start" "-a" "87575be0d6940e8bc075f994d5869c9bca37dd28ef76e907ffaaf618d19ac340", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87575be0d6940e8bc075f994d5869c9bca37dd28ef76e907ffaaf618d19ac340", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87575be0d6940e8bc075f994d5869c9bca37dd28ef76e907ffaaf618d19ac340", kill_on_drop: false }`
[INFO] [stdout] 87575be0d6940e8bc075f994d5869c9bca37dd28ef76e907ffaaf618d19ac340
[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" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b09cd0e88fbbc61e5dcf4c13d6896dcc8b76b45dd317251badfd82a504ac0f83
[INFO] running `Command { std: "docker" "start" "-a" "b09cd0e88fbbc61e5dcf4c13d6896dcc8b76b45dd317251badfd82a504ac0f83", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.117
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling getrandom v0.2.4
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling mkserial v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.16s
[INFO] running `Command { std: "docker" "inspect" "b09cd0e88fbbc61e5dcf4c13d6896dcc8b76b45dd317251badfd82a504ac0f83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b09cd0e88fbbc61e5dcf4c13d6896dcc8b76b45dd317251badfd82a504ac0f83", kill_on_drop: false }`
[INFO] [stdout] b09cd0e88fbbc61e5dcf4c13d6896dcc8b76b45dd317251badfd82a504ac0f83
[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" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e783468fd376af7aa3f5a14bf148680e45f76136c8eb0cdabe5fa4fa50ec1e49
[INFO] running `Command { std: "docker" "start" "-a" "e783468fd376af7aa3f5a14bf148680e45f76136c8eb0cdabe5fa4fa50ec1e49", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.117
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling getrandom v0.2.4
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling mkserial v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [optimized + debuginfo] target(s) in 14.05s
[INFO] running `Command { std: "docker" "inspect" "e783468fd376af7aa3f5a14bf148680e45f76136c8eb0cdabe5fa4fa50ec1e49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e783468fd376af7aa3f5a14bf148680e45f76136c8eb0cdabe5fa4fa50ec1e49", kill_on_drop: false }`
[INFO] [stdout] e783468fd376af7aa3f5a14bf148680e45f76136c8eb0cdabe5fa4fa50ec1e49
[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" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6a82cfc2e4d4cfae594590e258c1e3923a2d64b15bf2dfda81682dda0753bddc
[INFO] running `Command { std: "docker" "start" "-a" "6a82cfc2e4d4cfae594590e258c1e3923a2d64b15bf2dfda81682dda0753bddc", kill_on_drop: false }`
[INFO] [stderr]     Finished test [optimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mkserial-455b73578e802086)
[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 tests/sample.rs (/opt/rustwide/target/debug/deps/sample-abf5ea43177dba77)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test sample_many ... ignored
[INFO] [stdout] test sample_few ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 17.10s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6a82cfc2e4d4cfae594590e258c1e3923a2d64b15bf2dfda81682dda0753bddc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a82cfc2e4d4cfae594590e258c1e3923a2d64b15bf2dfda81682dda0753bddc", kill_on_drop: false }`
[INFO] [stdout] 6a82cfc2e4d4cfae594590e258c1e3923a2d64b15bf2dfda81682dda0753bddc