[INFO] fetching crate dl_api 0.4.0...
[INFO] testing dl_api-0.4.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate dl_api 0.4.0 into /workspace/builds/worker-39/source
[INFO] validating manifest of crates.io crate dl_api 0.4.0 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 dl_api 0.4.0
[INFO] finished tweaking crates.io crate dl_api 0.4.0
[INFO] tweaked toml for crates.io crate dl_api 0.4.0 written to /workspace/builds/worker-39/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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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] 1d8b7059f7e4e8c8570a53ad9779e4e2a6ac6aee931d842b67b814cd6c18283d
[INFO] running `Command { std: "docker" "start" "-a" "1d8b7059f7e4e8c8570a53ad9779e4e2a6ac6aee931d842b67b814cd6c18283d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d8b7059f7e4e8c8570a53ad9779e4e2a6ac6aee931d842b67b814cd6c18283d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d8b7059f7e4e8c8570a53ad9779e4e2a6ac6aee931d842b67b814cd6c18283d", kill_on_drop: false }`
[INFO] [stdout] 1d8b7059f7e4e8c8570a53ad9779e4e2a6ac6aee931d842b67b814cd6c18283d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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] 8c7768ab94f0369159d76f7a4f06b05b145fcd16e02a293ddd0e292668fd7fb8
[INFO] running `Command { std: "docker" "start" "-a" "8c7768ab94f0369159d76f7a4f06b05b145fcd16e02a293ddd0e292668fd7fb8", kill_on_drop: false }`
[INFO] [stderr]    Compiling dl_api v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "8c7768ab94f0369159d76f7a4f06b05b145fcd16e02a293ddd0e292668fd7fb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c7768ab94f0369159d76f7a4f06b05b145fcd16e02a293ddd0e292668fd7fb8", kill_on_drop: false }`
[INFO] [stdout] 8c7768ab94f0369159d76f7a4f06b05b145fcd16e02a293ddd0e292668fd7fb8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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] 2a278cbfec836d981b911b7c2441e029c3afe804edc8601bed9e0d590e342a66
[INFO] running `Command { std: "docker" "start" "-a" "2a278cbfec836d981b911b7c2441e029c3afe804edc8601bed9e0d590e342a66", kill_on_drop: false }`
[INFO] [stderr]    Compiling dl_api v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "2a278cbfec836d981b911b7c2441e029c3afe804edc8601bed9e0d590e342a66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a278cbfec836d981b911b7c2441e029c3afe804edc8601bed9e0d590e342a66", kill_on_drop: false }`
[INFO] [stdout] 2a278cbfec836d981b911b7c2441e029c3afe804edc8601bed9e0d590e342a66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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] 70f22d3cfe44529d0f312af9ed9a8143206d7c556cac34428c47035634017d6a
[INFO] running `Command { std: "docker" "start" "-a" "70f22d3cfe44529d0f312af9ed9a8143206d7c556cac34428c47035634017d6a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/dl_api-a97463c3de7662e9)
[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] [stderr]    Doc-tests dl_api
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/linker.rs - linker (line 12) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "70f22d3cfe44529d0f312af9ed9a8143206d7c556cac34428c47035634017d6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70f22d3cfe44529d0f312af9ed9a8143206d7c556cac34428c47035634017d6a", kill_on_drop: false }`
[INFO] [stdout] 70f22d3cfe44529d0f312af9ed9a8143206d7c556cac34428c47035634017d6a