[INFO] fetching crate rustc-semver 1.1.0...
[INFO] testing rustc-semver-1.1.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate rustc-semver 1.1.0 into /workspace/builds/worker-90/source
[INFO] validating manifest of crates.io crate rustc-semver 1.1.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-90/source/rust-toolchain
[INFO] started tweaking crates.io crate rustc-semver 1.1.0
[INFO] finished tweaking crates.io crate rustc-semver 1.1.0
[INFO] tweaked toml for crates.io crate rustc-semver 1.1.0 written to /workspace/builds/worker-90/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8df4e7d7b4cd208b38623cc42f8f9ab1f654f10dae0a2e1d12cecdca317cca39
[INFO] running `Command { std: "docker" "start" "-a" "8df4e7d7b4cd208b38623cc42f8f9ab1f654f10dae0a2e1d12cecdca317cca39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8df4e7d7b4cd208b38623cc42f8f9ab1f654f10dae0a2e1d12cecdca317cca39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8df4e7d7b4cd208b38623cc42f8f9ab1f654f10dae0a2e1d12cecdca317cca39", kill_on_drop: false }`
[INFO] [stdout] 8df4e7d7b4cd208b38623cc42f8f9ab1f654f10dae0a2e1d12cecdca317cca39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd9dba958bedec8dde39c8524b4e415cbcead545f033132c2a7a7a993aaf69b2
[INFO] running `Command { std: "docker" "start" "-a" "dd9dba958bedec8dde39c8524b4e415cbcead545f033132c2a7a7a993aaf69b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc-semver v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "dd9dba958bedec8dde39c8524b4e415cbcead545f033132c2a7a7a993aaf69b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd9dba958bedec8dde39c8524b4e415cbcead545f033132c2a7a7a993aaf69b2", kill_on_drop: false }`
[INFO] [stdout] dd9dba958bedec8dde39c8524b4e415cbcead545f033132c2a7a7a993aaf69b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c6f6f33c4b5ff6db48d58dc4609d9ebb11c18f99be50973ae2fd4a5d43714cd
[INFO] running `Command { std: "docker" "start" "-a" "5c6f6f33c4b5ff6db48d58dc4609d9ebb11c18f99be50973ae2fd4a5d43714cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc-semver v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> src/lib.rs:655:9
[INFO] [stdout]     |
[INFO] [stdout] 655 |         OmittedParts::from(0);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> src/lib.rs:663:9
[INFO] [stdout]     |
[INFO] [stdout] 663 |         OmittedParts::from(4);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.36s
[INFO] running `Command { std: "docker" "inspect" "5c6f6f33c4b5ff6db48d58dc4609d9ebb11c18f99be50973ae2fd4a5d43714cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c6f6f33c4b5ff6db48d58dc4609d9ebb11c18f99be50973ae2fd4a5d43714cd", kill_on_drop: false }`
[INFO] [stdout] 5c6f6f33c4b5ff6db48d58dc4609d9ebb11c18f99be50973ae2fd4a5d43714cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cd43d3e610c38419a715c650c3c3ef0eb6262a35de3e4aeb793056f0e4c361e8
[INFO] running `Command { std: "docker" "start" "-a" "cd43d3e610c38419a715c650c3c3ef0eb6262a35de3e4aeb793056f0e4c361e8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused return value of `from` that must be used
[INFO] [stderr]    --> src/lib.rs:655:9
[INFO] [stderr]     |
[INFO] [stderr] 655 |         OmittedParts::from(0);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `from` that must be used
[INFO] [stderr]    --> src/lib.rs:663:9
[INFO] [stderr]     |
[INFO] [stderr] 663 |         OmittedParts::from(4);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rustc-semver` (lib test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rustc_semver-60434db1ef4e86f1)
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test test::formatting ... ok
[INFO] [stdout] test test::greater_than ... ok
[INFO] [stdout] test test::less_than ... ok
[INFO] [stdout] test test::meets_no_minor ... ok
[INFO] [stdout] test test::equal ... ok
[INFO] [stdout] test test::meets_full ... ok
[INFO] [stdout] test test::edge_cases ... ok
[INFO] [stdout] test test::meets_special ... ok
[INFO] [stdout] test test::alpha_numeric_version ... ok
[INFO] [stdout] test test::meets_no_patch ... ok
[INFO] [stdout] test test::special_versions ... ok
[INFO] [stdout] test test::too_many_elements ... ok
[INFO] [stdout] test test::omitted_parts ... ok
[INFO] [stdout] test test::omitted_parts_with_zero - should panic ... ok
[INFO] [stdout] test test::omitted_parts_with_four - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rustc-semver
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - RustcVersion::new (line 239) ... ok
[INFO] [stdout] test src/lib.rs - RustcVersion::meets (line 334) ... ok
[INFO] [stdout] test src/lib.rs - RustcVersion::parse (line 269) ... ok
[INFO] [stdout] test src/lib.rs - RustcVersion (line 43) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.45s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cd43d3e610c38419a715c650c3c3ef0eb6262a35de3e4aeb793056f0e4c361e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd43d3e610c38419a715c650c3c3ef0eb6262a35de3e4aeb793056f0e4c361e8", kill_on_drop: false }`
[INFO] [stdout] cd43d3e610c38419a715c650c3c3ef0eb6262a35de3e4aeb793056f0e4c361e8