[INFO] cloning repository https://github.com/barbeque/duplicate-attrs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/barbeque/duplicate-attrs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbarbeque%2Fduplicate-attrs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbarbeque%2Fduplicate-attrs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 50f147accd06659fe14efb457c407cc05198ca0a
[INFO] checking barbeque/duplicate-attrs against master#39b841dfe36f90a7cd111e7f0c55f32594f6e578 for pr-77035
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbarbeque%2Fduplicate-attrs" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/barbeque/duplicate-attrs on toolchain 39b841dfe36f90a7cd111e7f0c55f32594f6e578
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/barbeque/duplicate-attrs
[INFO] finished tweaking git repo https://github.com/barbeque/duplicate-attrs
[INFO] tweaked toml for git repo https://github.com/barbeque/duplicate-attrs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/barbeque/duplicate-attrs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5e7fb2437f9ca2f78ce9bcc7bbdfd66202faeaf71ae6eadd8ba5fb555a3bcc93
[INFO] running `Command { std: "docker" "start" "-a" "5e7fb2437f9ca2f78ce9bcc7bbdfd66202faeaf71ae6eadd8ba5fb555a3bcc93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e7fb2437f9ca2f78ce9bcc7bbdfd66202faeaf71ae6eadd8ba5fb555a3bcc93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e7fb2437f9ca2f78ce9bcc7bbdfd66202faeaf71ae6eadd8ba5fb555a3bcc93", kill_on_drop: false }`
[INFO] [stdout] 5e7fb2437f9ca2f78ce9bcc7bbdfd66202faeaf71ae6eadd8ba5fb555a3bcc93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 32707848a2d032d9ced6ba2feaa8a24c97acdf267edf0cb8da719dca50ae902f
[INFO] running `Command { std: "docker" "start" "-a" "32707848a2d032d9ced6ba2feaa8a24c97acdf267edf0cb8da719dca50ae902f", kill_on_drop: false }`
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking xml-rs v0.4.1
[INFO] [stderr]     Checking duplicate-attrs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.42s
[INFO] running `Command { std: "docker" "inspect" "32707848a2d032d9ced6ba2feaa8a24c97acdf267edf0cb8da719dca50ae902f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32707848a2d032d9ced6ba2feaa8a24c97acdf267edf0cb8da719dca50ae902f", kill_on_drop: false }`
[INFO] [stdout] 32707848a2d032d9ced6ba2feaa8a24c97acdf267edf0cb8da719dca50ae902f