[INFO] fetching crate cubo 0.0.1...
[INFO] testing cubo-0.0.1 against 1.59.0 for beta-1.60-1
[INFO] extracting crate cubo 0.0.1 into /workspace/builds/worker-27/source
[INFO] validating manifest of crates.io crate cubo 0.0.1 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cubo 0.0.1
[INFO] finished tweaking crates.io crate cubo 0.0.1
[INFO] tweaked toml for crates.io crate cubo 0.0.1 written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4da6c1da25029bb77bbb0def4b9e53cec56d74ed0ca5b1bd92b84927e3b9f4d8
[INFO] running `Command { std: "docker" "start" "-a" "4da6c1da25029bb77bbb0def4b9e53cec56d74ed0ca5b1bd92b84927e3b9f4d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4da6c1da25029bb77bbb0def4b9e53cec56d74ed0ca5b1bd92b84927e3b9f4d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4da6c1da25029bb77bbb0def4b9e53cec56d74ed0ca5b1bd92b84927e3b9f4d8", kill_on_drop: false }`
[INFO] [stdout] 4da6c1da25029bb77bbb0def4b9e53cec56d74ed0ca5b1bd92b84927e3b9f4d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5011fdb4e0b015a41878e8a30fd3d39ceb79182c4927c8acdbe8df660e7bff2
[INFO] running `Command { std: "docker" "start" "-a" "a5011fdb4e0b015a41878e8a30fd3d39ceb79182c4927c8acdbe8df660e7bff2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.79
[INFO] [stderr]    Compiling bumpalo v3.9.1
[INFO] [stderr]    Compiling wasm-bindgen v0.2.79
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling smawk v0.3.1
[INFO] [stderr]    Compiling smallvec v0.4.5
[INFO] [stderr]    Compiling textwrap v0.13.4
[INFO] [stderr]    Compiling ferris-says v0.2.1
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.79
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.79
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.79
[INFO] [stderr]    Compiling cubo v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]   --> src/lib.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.32s
[INFO] running `Command { std: "docker" "inspect" "a5011fdb4e0b015a41878e8a30fd3d39ceb79182c4927c8acdbe8df660e7bff2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5011fdb4e0b015a41878e8a30fd3d39ceb79182c4927c8acdbe8df660e7bff2", kill_on_drop: false }`
[INFO] [stdout] a5011fdb4e0b015a41878e8a30fd3d39ceb79182c4927c8acdbe8df660e7bff2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b6e238622d9aebdd03b33e25aff9f5749f8270db53f86d9e794efb7535e7d37
[INFO] running `Command { std: "docker" "start" "-a" "5b6e238622d9aebdd03b33e25aff9f5749f8270db53f86d9e794efb7535e7d37", kill_on_drop: false }`
[INFO] [stderr]    Compiling cubo v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "5b6e238622d9aebdd03b33e25aff9f5749f8270db53f86d9e794efb7535e7d37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b6e238622d9aebdd03b33e25aff9f5749f8270db53f86d9e794efb7535e7d37", kill_on_drop: false }`
[INFO] [stdout] 5b6e238622d9aebdd03b33e25aff9f5749f8270db53f86d9e794efb7535e7d37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f54a4553247a018f18344921f0a67db237cc188d56941fe2d03c26521f31ddff
[INFO] running `Command { std: "docker" "start" "-a" "f54a4553247a018f18344921f0a67db237cc188d56941fe2d03c26521f31ddff", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cubo-893a6ecbe6cbb772)
[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" "f54a4553247a018f18344921f0a67db237cc188d56941fe2d03c26521f31ddff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f54a4553247a018f18344921f0a67db237cc188d56941fe2d03c26521f31ddff", kill_on_drop: false }`
[INFO] [stdout] f54a4553247a018f18344921f0a67db237cc188d56941fe2d03c26521f31ddff