[INFO] fetching crate io-error 0.1.1...
[INFO] testing io-error-0.1.1 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate io-error 0.1.1 into /workspace/builds/worker-103/source
[INFO] validating manifest of crates.io crate io-error 0.1.1 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate io-error 0.1.1
[INFO] finished tweaking crates.io crate io-error 0.1.1
[INFO] tweaked toml for crates.io crate io-error 0.1.1 written to /workspace/builds/worker-103/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a40d377500ad5a0340a2724cb668e870926d98b95e169f4a787ffffdb83afb29
[INFO] running `Command { std: "docker" "start" "-a" "a40d377500ad5a0340a2724cb668e870926d98b95e169f4a787ffffdb83afb29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a40d377500ad5a0340a2724cb668e870926d98b95e169f4a787ffffdb83afb29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a40d377500ad5a0340a2724cb668e870926d98b95e169f4a787ffffdb83afb29", kill_on_drop: false }`
[INFO] [stdout] a40d377500ad5a0340a2724cb668e870926d98b95e169f4a787ffffdb83afb29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7cc5de3902af51f19e3b467e6c72d361bd82069152600ce34a3513cfe03f484f
[INFO] running `Command { std: "docker" "start" "-a" "7cc5de3902af51f19e3b467e6c72d361bd82069152600ce34a3513cfe03f484f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling io-error v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.18s
[INFO] running `Command { std: "docker" "inspect" "7cc5de3902af51f19e3b467e6c72d361bd82069152600ce34a3513cfe03f484f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cc5de3902af51f19e3b467e6c72d361bd82069152600ce34a3513cfe03f484f", kill_on_drop: false }`
[INFO] [stdout] 7cc5de3902af51f19e3b467e6c72d361bd82069152600ce34a3513cfe03f484f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0bcd3521103aa6a1fc687bb1febc7eabd80eabebd4947e3dc5cee18fd2592505
[INFO] running `Command { std: "docker" "start" "-a" "0bcd3521103aa6a1fc687bb1febc7eabd80eabebd4947e3dc5cee18fd2592505", kill_on_drop: false }`
[INFO] [stderr]    Compiling io-error v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "0bcd3521103aa6a1fc687bb1febc7eabd80eabebd4947e3dc5cee18fd2592505", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bcd3521103aa6a1fc687bb1febc7eabd80eabebd4947e3dc5cee18fd2592505", kill_on_drop: false }`
[INFO] [stdout] 0bcd3521103aa6a1fc687bb1febc7eabd80eabebd4947e3dc5cee18fd2592505
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 59bf5a555d4aac6ccb434fa270f2ca6251968b22c28f2732142cbc72ffc5375d
[INFO] running `Command { std: "docker" "start" "-a" "59bf5a555d4aac6ccb434fa270f2ca6251968b22c28f2732142cbc72ffc5375d", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/io_error-46ed75c2ca14feb5)
[INFO] [stdout] test tests::test ... ok
[INFO] [stderr]    Doc-tests io-error
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - err (line 45) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - err (line 45) stdout ----
[INFO] [stdout] error[E0468]: an `extern crate` loading macros must be at the crate root
[INFO] [stdout]  --> src/lib.rs:47:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | extern crate io_error;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0468`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - err (line 45)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "59bf5a555d4aac6ccb434fa270f2ca6251968b22c28f2732142cbc72ffc5375d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59bf5a555d4aac6ccb434fa270f2ca6251968b22c28f2732142cbc72ffc5375d", kill_on_drop: false }`
[INFO] [stdout] 59bf5a555d4aac6ccb434fa270f2ca6251968b22c28f2732142cbc72ffc5375d
