[INFO] fetching crate dross 0.1.0...
[INFO] testing dross-0.1.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate dross 0.1.0 into /workspace/builds/worker-42/source
[INFO] validating manifest of crates.io crate dross 0.1.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dross 0.1.0
[INFO] finished tweaking crates.io crate dross 0.1.0
[INFO] tweaked toml for crates.io crate dross 0.1.0 written to /workspace/builds/worker-42/source/Cargo.toml
[INFO] crate crates.io crate dross 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e580b117972314e04156067c6e7b57a884b19afa220bf00385b1bf7e53be8964
[INFO] running `Command { std: "docker" "start" "-a" "e580b117972314e04156067c6e7b57a884b19afa220bf00385b1bf7e53be8964", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e580b117972314e04156067c6e7b57a884b19afa220bf00385b1bf7e53be8964", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e580b117972314e04156067c6e7b57a884b19afa220bf00385b1bf7e53be8964", kill_on_drop: false }`
[INFO] [stdout] e580b117972314e04156067c6e7b57a884b19afa220bf00385b1bf7e53be8964
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f835c17f06723e5a71c8065987e2d09940910bb87f899b10235bbe151ed91b05
[INFO] running `Command { std: "docker" "start" "-a" "f835c17f06723e5a71c8065987e2d09940910bb87f899b10235bbe151ed91b05", kill_on_drop: false }`
[INFO] [stderr]    Compiling dross v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.62s
[INFO] running `Command { std: "docker" "inspect" "f835c17f06723e5a71c8065987e2d09940910bb87f899b10235bbe151ed91b05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f835c17f06723e5a71c8065987e2d09940910bb87f899b10235bbe151ed91b05", kill_on_drop: false }`
[INFO] [stdout] f835c17f06723e5a71c8065987e2d09940910bb87f899b10235bbe151ed91b05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0ce44e324c1e5e1206ac4b7f2f082dad802d07d26f41c40c0fd7ca7173da347
[INFO] running `Command { std: "docker" "start" "-a" "c0ce44e324c1e5e1206ac4b7f2f082dad802d07d26f41c40c0fd7ca7173da347", kill_on_drop: false }`
[INFO] [stderr]    Compiling dross v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "c0ce44e324c1e5e1206ac4b7f2f082dad802d07d26f41c40c0fd7ca7173da347", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0ce44e324c1e5e1206ac4b7f2f082dad802d07d26f41c40c0fd7ca7173da347", kill_on_drop: false }`
[INFO] [stdout] c0ce44e324c1e5e1206ac4b7f2f082dad802d07d26f41c40c0fd7ca7173da347
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5c9eb9905f79d962b509169eb5ef01c047c593d968388f9abec99c63446cbed8
[INFO] running `Command { std: "docker" "start" "-a" "5c9eb9905f79d962b509169eb5ef01c047c593d968388f9abec99c63446cbed8", 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/dross-0fc23f950c5df061)
[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" "5c9eb9905f79d962b509169eb5ef01c047c593d968388f9abec99c63446cbed8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c9eb9905f79d962b509169eb5ef01c047c593d968388f9abec99c63446cbed8", kill_on_drop: false }`
[INFO] [stdout] 5c9eb9905f79d962b509169eb5ef01c047c593d968388f9abec99c63446cbed8