[INFO] fetching crate rarathon 0.0.1...
[INFO] testing rarathon-0.0.1 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate rarathon 0.0.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate rarathon 0.0.1 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rarathon 0.0.1
[INFO] finished tweaking crates.io crate rarathon 0.0.1
[INFO] tweaked toml for crates.io crate rarathon 0.0.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b177b1d270e75bd58c772a3463d2629dd2d10e7456e4707e842eee82dde50d54
[INFO] running `Command { std: "docker" "start" "-a" "b177b1d270e75bd58c772a3463d2629dd2d10e7456e4707e842eee82dde50d54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b177b1d270e75bd58c772a3463d2629dd2d10e7456e4707e842eee82dde50d54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b177b1d270e75bd58c772a3463d2629dd2d10e7456e4707e842eee82dde50d54", kill_on_drop: false }`
[INFO] [stdout] b177b1d270e75bd58c772a3463d2629dd2d10e7456e4707e842eee82dde50d54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3cfdc668ebc73e844030c81c6a16d83cd3290e02147da28f4ea4f7d211e26c93
[INFO] running `Command { std: "docker" "start" "-a" "3cfdc668ebc73e844030c81c6a16d83cd3290e02147da28f4ea4f7d211e26c93", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling try-lock v0.2.3
[INFO] [stderr]    Compiling tower-service v0.3.1
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling httpdate v1.0.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling tracing-core v0.1.18
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling http v0.2.4
[INFO] [stderr]    Compiling tokio v1.8.1
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling tracing v0.1.26
[INFO] [stderr]    Compiling http-body v0.4.2
[INFO] [stderr]    Compiling hyper v0.14.10
[INFO] [stderr]    Compiling rarathon v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected identifier, found `"rustc-serialize"`
[INFO] [stdout]  --> src/lib.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | extern crate "rustc-serialize" as rustc_serialize;
[INFO] [stdout]   |              ^^^^^^^^^^^^^^^^^ expected identifier
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rarathon`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "3cfdc668ebc73e844030c81c6a16d83cd3290e02147da28f4ea4f7d211e26c93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cfdc668ebc73e844030c81c6a16d83cd3290e02147da28f4ea4f7d211e26c93", kill_on_drop: false }`
[INFO] [stdout] 3cfdc668ebc73e844030c81c6a16d83cd3290e02147da28f4ea4f7d211e26c93