[INFO] fetching crate niche 0.1.0...
[INFO] testing niche-0.1.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate niche 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate niche 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 niche 0.1.0
[INFO] finished tweaking crates.io crate niche 0.1.0
[INFO] tweaked toml for crates.io crate niche 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate niche 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] de35cda0cba2290b042e541bde63c50299de6ca05697aef15204e56d472a8fa0
[INFO] running `Command { std: "docker" "start" "-a" "de35cda0cba2290b042e541bde63c50299de6ca05697aef15204e56d472a8fa0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de35cda0cba2290b042e541bde63c50299de6ca05697aef15204e56d472a8fa0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de35cda0cba2290b042e541bde63c50299de6ca05697aef15204e56d472a8fa0", kill_on_drop: false }`
[INFO] [stdout] de35cda0cba2290b042e541bde63c50299de6ca05697aef15204e56d472a8fa0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] a4d3d098141f65dd4c4315c1c28c82efb68c4d0217801e6b451da88b6fb0d98e
[INFO] running `Command { std: "docker" "start" "-a" "a4d3d098141f65dd4c4315c1c28c82efb68c4d0217801e6b451da88b6fb0d98e", kill_on_drop: false }`
[INFO] [stderr]    Compiling niche v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "a4d3d098141f65dd4c4315c1c28c82efb68c4d0217801e6b451da88b6fb0d98e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4d3d098141f65dd4c4315c1c28c82efb68c4d0217801e6b451da88b6fb0d98e", kill_on_drop: false }`
[INFO] [stdout] a4d3d098141f65dd4c4315c1c28c82efb68c4d0217801e6b451da88b6fb0d98e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 907065eaad01c103fadfd07c5bc93ba3796cbdd8ff396b08eb7e0d79b8fc68c3
[INFO] running `Command { std: "docker" "start" "-a" "907065eaad01c103fadfd07c5bc93ba3796cbdd8ff396b08eb7e0d79b8fc68c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling niche v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.27s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/niche-9d3e18a43ec64c11)
[INFO] running `Command { std: "docker" "inspect" "907065eaad01c103fadfd07c5bc93ba3796cbdd8ff396b08eb7e0d79b8fc68c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "907065eaad01c103fadfd07c5bc93ba3796cbdd8ff396b08eb7e0d79b8fc68c3", kill_on_drop: false }`
[INFO] [stdout] 907065eaad01c103fadfd07c5bc93ba3796cbdd8ff396b08eb7e0d79b8fc68c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] e4026563a2a99d854e0f814b3cbfd0d64825714cbb4ff10c924b880c695df738
[INFO] running `Command { std: "docker" "start" "-a" "e4026563a2a99d854e0f814b3cbfd0d64825714cbb4ff10c924b880c695df738", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/niche-9d3e18a43ec64c11)
[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" "e4026563a2a99d854e0f814b3cbfd0d64825714cbb4ff10c924b880c695df738", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4026563a2a99d854e0f814b3cbfd0d64825714cbb4ff10c924b880c695df738", kill_on_drop: false }`
[INFO] [stdout] e4026563a2a99d854e0f814b3cbfd0d64825714cbb4ff10c924b880c695df738