[INFO] cloning repository https://github.com/benlubas/how-does-rust-work
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/benlubas/how-does-rust-work" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenlubas%2Fhow-does-rust-work", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenlubas%2Fhow-does-rust-work'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6ea8271eb39528f36cc233413bf1614b88fbfb61
[INFO] checking benlubas/how-does-rust-work against master#0dce3f606e05cffab7361c132a399d3550ab0df8 for pr-78376
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenlubas%2Fhow-does-rust-work" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/benlubas/how-does-rust-work on toolchain 0dce3f606e05cffab7361c132a399d3550ab0df8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/benlubas/how-does-rust-work
[INFO] finished tweaking git repo https://github.com/benlubas/how-does-rust-work
[INFO] tweaked toml for git repo https://github.com/benlubas/how-does-rust-work written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/benlubas/how-does-rust-work already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c38af53d74696e4bb22be1b22aa5265a6feaacd94822d5fcdb3d4154e51e9bda
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c38af53d74696e4bb22be1b22aa5265a6feaacd94822d5fcdb3d4154e51e9bda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c38af53d74696e4bb22be1b22aa5265a6feaacd94822d5fcdb3d4154e51e9bda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c38af53d74696e4bb22be1b22aa5265a6feaacd94822d5fcdb3d4154e51e9bda", kill_on_drop: false }`
[INFO] [stdout] c38af53d74696e4bb22be1b22aa5265a6feaacd94822d5fcdb3d4154e51e9bda
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 584b1c891eedf54480412399e3a7ac414402f8950ff099bebe9773c03d2ad4d5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "584b1c891eedf54480412399e3a7ac414402f8950ff099bebe9773c03d2ad4d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking how-does-rust-work v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected identifier, found `<`
[INFO] [stdout]   --> src/practice.rs:52:30
[INFO] [stdout]    |
[INFO] [stdout] 52 |     word.split("").collect(::<&str>).sort().join("")
[INFO] [stdout]    |                              ^ expected identifier
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found `<`
[INFO] [stdout]   --> src/practice.rs:52:30
[INFO] [stdout]    |
[INFO] [stdout] 52 |     word.split("").collect(::<&str>).sort().join("")
[INFO] [stdout]    |                              ^ expected identifier
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `how-does-rust-work`
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[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] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "584b1c891eedf54480412399e3a7ac414402f8950ff099bebe9773c03d2ad4d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "584b1c891eedf54480412399e3a7ac414402f8950ff099bebe9773c03d2ad4d5", kill_on_drop: false }`
[INFO] [stdout] 584b1c891eedf54480412399e3a7ac414402f8950ff099bebe9773c03d2ad4d5