[INFO] cloning repository https://github.com/fergusbarratt/metropolis
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fergusbarratt/metropolis" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffergusbarratt%2Fmetropolis", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffergusbarratt%2Fmetropolis'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e06fe2fd078c91ac2eaaac41a575c300660b3a4e
[INFO] testing fergusbarratt/metropolis against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffergusbarratt%2Fmetropolis" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fergusbarratt/metropolis on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fergusbarratt/metropolis
[INFO] finished tweaking git repo https://github.com/fergusbarratt/metropolis
[INFO] tweaked toml for git repo https://github.com/fergusbarratt/metropolis written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/fergusbarratt/metropolis already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded itertools v0.4.12
[INFO] [stderr]   Downloaded gnuplot v0.0.20
[INFO] [stderr]   Downloaded nalgebra v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6fd1d2b270ab684952567d6b96caecef9585f8fc3915b2c72ca9053d0f0b1a49
[INFO] running `Command { std: "docker" "start" "-a" "6fd1d2b270ab684952567d6b96caecef9585f8fc3915b2c72ca9053d0f0b1a49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fd1d2b270ab684952567d6b96caecef9585f8fc3915b2c72ca9053d0f0b1a49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fd1d2b270ab684952567d6b96caecef9585f8fc3915b2c72ca9053d0f0b1a49", kill_on_drop: false }`
[INFO] [stdout] 6fd1d2b270ab684952567d6b96caecef9585f8fc3915b2c72ca9053d0f0b1a49
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eeed4581b9352ea26f465f4dc68dbf1c206ea95fb6f28565210130389cf0444d
[INFO] running `Command { std: "docker" "start" "-a" "eeed4581b9352ea26f465f4dc68dbf1c206ea95fb6f28565210130389cf0444d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.9
[INFO] [stderr]    Compiling rustc-serialize v0.3.19
[INFO] [stderr]    Compiling itertools v0.4.12
[INFO] [stderr]    Compiling gnuplot v0.0.20
[INFO] [stdout] error[E0642]: patterns aren't allowed in functions without bodies
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.3.19/src/serialize.rs:147:45
[INFO] [stdout]     |
[INFO] [stdout] 147 | ...                   &f_name: &str,
[INFO] [stdout]     |                       ^^^^^^^ pattern not allowed in function without body
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand v0.3.14
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0642`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustc-serialize`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "eeed4581b9352ea26f465f4dc68dbf1c206ea95fb6f28565210130389cf0444d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eeed4581b9352ea26f465f4dc68dbf1c206ea95fb6f28565210130389cf0444d", kill_on_drop: false }`
[INFO] [stdout] eeed4581b9352ea26f465f4dc68dbf1c206ea95fb6f28565210130389cf0444d