[INFO] fetching crate uu_cat 0.0.1...
[INFO] checking uu_cat-0.0.1 against beta for pr-78714
[INFO] extracting crate uu_cat 0.0.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate uu_cat 0.0.1 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate uu_cat 0.0.1
[INFO] finished tweaking crates.io crate uu_cat 0.0.1
[INFO] tweaked toml for crates.io crate uu_cat 0.0.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate uu_cat 0.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] 7b2af46564fb9b5826ac2a14c29d7fdd5056f2c3cf0afb68274fa948d633866e
[INFO] running `Command { std: "docker" "start" "-a" "7b2af46564fb9b5826ac2a14c29d7fdd5056f2c3cf0afb68274fa948d633866e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b2af46564fb9b5826ac2a14c29d7fdd5056f2c3cf0afb68274fa948d633866e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b2af46564fb9b5826ac2a14c29d7fdd5056f2c3cf0afb68274fa948d633866e", kill_on_drop: false }`
[INFO] [stdout] 7b2af46564fb9b5826ac2a14c29d7fdd5056f2c3cf0afb68274fa948d633866e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d50e01f7186209e1306bb8648b5ceef65b12ea9c62a5045e32e40ef5c5b3f8c
[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" "7d50e01f7186209e1306bb8648b5ceef65b12ea9c62a5045e32e40ef5c5b3f8c", kill_on_drop: false }`
[INFO] [stderr]     Checking unix_socket v0.5.0
[INFO] [stderr]     Checking uu_cat v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: only functions may be used as tests
[INFO] [stdout]    --> src/cat.rs:466:1
[INFO] [stdout]     |
[INFO] [stdout] 466 | / mod tests {
[INFO] [stdout] 467 | |     use std::io::{stdout, BufWriter};
[INFO] [stdout] 468 | |
[INFO] [stdout] 469 | |     #[test]
[INFO] [stdout] ...   |
[INFO] [stdout] 507 | |     }
[INFO] [stdout] 508 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `uu_cat`
[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" "7d50e01f7186209e1306bb8648b5ceef65b12ea9c62a5045e32e40ef5c5b3f8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d50e01f7186209e1306bb8648b5ceef65b12ea9c62a5045e32e40ef5c5b3f8c", kill_on_drop: false }`
[INFO] [stdout] 7d50e01f7186209e1306bb8648b5ceef65b12ea9c62a5045e32e40ef5c5b3f8c