[INFO] fetching crate akc 0.1.0...
[INFO] testing akc-0.1.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate akc 0.1.0 into /workspace/builds/worker-26/source
[INFO] validating manifest of crates.io crate akc 0.1.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate akc 0.1.0
[INFO] finished tweaking crates.io crate akc 0.1.0
[INFO] tweaked toml for crates.io crate akc 0.1.0 written to /workspace/builds/worker-26/source/Cargo.toml
[INFO] crate crates.io crate akc 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 286a5f101b7f375517812eb2a1cd5ec9593cd8d02602c9aad3860ceecba4fa70
[INFO] running `Command { std: "docker" "start" "-a" "286a5f101b7f375517812eb2a1cd5ec9593cd8d02602c9aad3860ceecba4fa70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "286a5f101b7f375517812eb2a1cd5ec9593cd8d02602c9aad3860ceecba4fa70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "286a5f101b7f375517812eb2a1cd5ec9593cd8d02602c9aad3860ceecba4fa70", kill_on_drop: false }`
[INFO] [stdout] 286a5f101b7f375517812eb2a1cd5ec9593cd8d02602c9aad3860ceecba4fa70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1e8aa3e5203d148d046fcca7ec75c389a7ab492ca6dc03d60803a09e1ca9c60
[INFO] running `Command { std: "docker" "start" "-a" "f1e8aa3e5203d148d046fcca7ec75c389a7ab492ca6dc03d60803a09e1ca9c60", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling syn v1.0.89
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling quote v1.0.16
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling dirs-sys v0.3.7
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling dirs v4.0.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling structopt v0.3.26
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling akc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.55s
[INFO] running `Command { std: "docker" "inspect" "f1e8aa3e5203d148d046fcca7ec75c389a7ab492ca6dc03d60803a09e1ca9c60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1e8aa3e5203d148d046fcca7ec75c389a7ab492ca6dc03d60803a09e1ca9c60", kill_on_drop: false }`
[INFO] [stdout] f1e8aa3e5203d148d046fcca7ec75c389a7ab492ca6dc03d60803a09e1ca9c60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb62281b1344da061173a13398dc95d4c1ea588d9bd2b0440dee27405c2450d5
[INFO] running `Command { std: "docker" "start" "-a" "bb62281b1344da061173a13398dc95d4c1ea588d9bd2b0440dee27405c2450d5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling akc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.64s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/akc-37da038348f5fca5)
[INFO] running `Command { std: "docker" "inspect" "bb62281b1344da061173a13398dc95d4c1ea588d9bd2b0440dee27405c2450d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb62281b1344da061173a13398dc95d4c1ea588d9bd2b0440dee27405c2450d5", kill_on_drop: false }`
[INFO] [stdout] bb62281b1344da061173a13398dc95d4c1ea588d9bd2b0440dee27405c2450d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6116964bf2afaef2c6ab3900bf59c1b7f7ecabd01147371c1bebcc6ccd7e811f
[INFO] running `Command { std: "docker" "start" "-a" "6116964bf2afaef2c6ab3900bf59c1b7f7ecabd01147371c1bebcc6ccd7e811f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/akc-37da038348f5fca5)
[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" "6116964bf2afaef2c6ab3900bf59c1b7f7ecabd01147371c1bebcc6ccd7e811f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6116964bf2afaef2c6ab3900bf59c1b7f7ecabd01147371c1bebcc6ccd7e811f", kill_on_drop: false }`
[INFO] [stdout] 6116964bf2afaef2c6ab3900bf59c1b7f7ecabd01147371c1bebcc6ccd7e811f