[INFO] cloning repository https://github.com/Manishearth/kuramoto-simulations
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Manishearth/kuramoto-simulations" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FManishearth%2Fkuramoto-simulations", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FManishearth%2Fkuramoto-simulations'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c4072807923696bfa17d2099b6deeae7aae85e90
[INFO] testing Manishearth/kuramoto-simulations against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FManishearth%2Fkuramoto-simulations" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] [stderr] Updating files:  91% (45/49)
Updating files:  93% (46/49)
Updating files:  95% (47/49)
Updating files:  97% (48/49)
Updating files: 100% (49/49)
Updating files: 100% (49/49), done.
[INFO] validating manifest of git repo https://github.com/Manishearth/kuramoto-simulations on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Manishearth/kuramoto-simulations
[INFO] finished tweaking git repo https://github.com/Manishearth/kuramoto-simulations
[INFO] tweaked toml for git repo https://github.com/Manishearth/kuramoto-simulations written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/Manishearth/kuramoto-simulations already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d9b9a6c70850df8a30d1bfbca536af8b9e6b4604820f7a189900a48b0e004301
[INFO] running `Command { std: "docker" "start" "-a" "d9b9a6c70850df8a30d1bfbca536af8b9e6b4604820f7a189900a48b0e004301", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d9b9a6c70850df8a30d1bfbca536af8b9e6b4604820f7a189900a48b0e004301", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9b9a6c70850df8a30d1bfbca536af8b9e6b4604820f7a189900a48b0e004301", kill_on_drop: false }`
[INFO] [stdout] d9b9a6c70850df8a30d1bfbca536af8b9e6b4604820f7a189900a48b0e004301
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9cc21f7f9fcc9f3aec7eb1a77761844a95717e6080ef78217bab8dfde181efe
[INFO] running `Command { std: "docker" "start" "-a" "e9cc21f7f9fcc9f3aec7eb1a77761844a95717e6080ef78217bab8dfde181efe", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling kuramoto-simulations v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: invalid suffix `u` for number literal
[INFO] [stdout]   --> src/sim.rs:35:17
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let mut i = 30u;
[INFO] [stdout]    |                 ^^^ invalid suffix `u`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `serialize`
[INFO] [stdout]  --> src/main.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | extern crate serialize;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kuramoto-simulations`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "e9cc21f7f9fcc9f3aec7eb1a77761844a95717e6080ef78217bab8dfde181efe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9cc21f7f9fcc9f3aec7eb1a77761844a95717e6080ef78217bab8dfde181efe", kill_on_drop: false }`
[INFO] [stdout] e9cc21f7f9fcc9f3aec7eb1a77761844a95717e6080ef78217bab8dfde181efe