[INFO] fetching crate semver-trick 0.2.1...
[INFO] testing semver-trick-0.2.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate semver-trick 0.2.1 into /workspace/builds/worker-30/source
[INFO] validating manifest of crates.io crate semver-trick 0.2.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate semver-trick 0.2.1
[INFO] finished tweaking crates.io crate semver-trick 0.2.1
[INFO] tweaked toml for crates.io crate semver-trick 0.2.1 written to /workspace/builds/worker-30/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded semver-trick v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f17c444c847e5593b1bfcb79d2dbeb2afb3f7d2834cbc043db89525c398b8f79
[INFO] running `Command { std: "docker" "start" "-a" "f17c444c847e5593b1bfcb79d2dbeb2afb3f7d2834cbc043db89525c398b8f79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f17c444c847e5593b1bfcb79d2dbeb2afb3f7d2834cbc043db89525c398b8f79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f17c444c847e5593b1bfcb79d2dbeb2afb3f7d2834cbc043db89525c398b8f79", kill_on_drop: false }`
[INFO] [stdout] f17c444c847e5593b1bfcb79d2dbeb2afb3f7d2834cbc043db89525c398b8f79
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7be90584540bb7ec391c2ced34d73239782595e4237336149057c3b16a6525e
[INFO] running `Command { std: "docker" "start" "-a" "d7be90584540bb7ec391c2ced34d73239782595e4237336149057c3b16a6525e", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-trick v0.3.0
[INFO] [stderr]    Compiling semver-trick v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "d7be90584540bb7ec391c2ced34d73239782595e4237336149057c3b16a6525e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7be90584540bb7ec391c2ced34d73239782595e4237336149057c3b16a6525e", kill_on_drop: false }`
[INFO] [stdout] d7be90584540bb7ec391c2ced34d73239782595e4237336149057c3b16a6525e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5649dd75c64ffb57705a7d3ca69c1a0feedce8c3a1e38ddf2046a7387799a0ea
[INFO] running `Command { std: "docker" "start" "-a" "5649dd75c64ffb57705a7d3ca69c1a0feedce8c3a1e38ddf2046a7387799a0ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-trick v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "5649dd75c64ffb57705a7d3ca69c1a0feedce8c3a1e38ddf2046a7387799a0ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5649dd75c64ffb57705a7d3ca69c1a0feedce8c3a1e38ddf2046a7387799a0ea", kill_on_drop: false }`
[INFO] [stdout] 5649dd75c64ffb57705a7d3ca69c1a0feedce8c3a1e38ddf2046a7387799a0ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0130f2c2909bee8b3aaecfa87aad3eeb6ee38a7ea05bf84483985c8d90262481
[INFO] running `Command { std: "docker" "start" "-a" "0130f2c2909bee8b3aaecfa87aad3eeb6ee38a7ea05bf84483985c8d90262481", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/semver_trick-d4b5ef28272f5227)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests semver-trick
[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] error[E0465]: multiple rlib candidates for `semver_trick` found
[INFO] [stderr]  --> /opt/rustwide/workdir/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | extern crate semver_trick;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: candidate #1: /opt/rustwide/target/debug/deps/libsemver_trick-4036dc6359138c08.rlib
[INFO] [stderr]  --> /opt/rustwide/workdir/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | extern crate semver_trick;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] note: candidate #2: /opt/rustwide/target/debug/deps/libsemver_trick-ac256bb807c54b15.rlib
[INFO] [stderr]  --> /opt/rustwide/workdir/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | extern crate semver_trick;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "0130f2c2909bee8b3aaecfa87aad3eeb6ee38a7ea05bf84483985c8d90262481", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0130f2c2909bee8b3aaecfa87aad3eeb6ee38a7ea05bf84483985c8d90262481", kill_on_drop: false }`
[INFO] [stdout] 0130f2c2909bee8b3aaecfa87aad3eeb6ee38a7ea05bf84483985c8d90262481