[INFO] cloning repository https://github.com/insomnimus/show-files
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/insomnimus/show-files" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finsomnimus%2Fshow-files", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finsomnimus%2Fshow-files'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d6197a4c279c3ba6e56b8adadf6932140665d30d
[INFO] testing insomnimus/show-files against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finsomnimus%2Fshow-files" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/insomnimus/show-files on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/insomnimus/show-files
[INFO] finished tweaking git repo https://github.com/insomnimus/show-files
[INFO] tweaked toml for git repo https://github.com/insomnimus/show-files written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/insomnimus/show-files already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clap v3.0.13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e59bee4437f19ffa311637336a610cb4b8aaac08bd70d183f679fc7eb0febc7
[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" "7e59bee4437f19ffa311637336a610cb4b8aaac08bd70d183f679fc7eb0febc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e59bee4437f19ffa311637336a610cb4b8aaac08bd70d183f679fc7eb0febc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e59bee4437f19ffa311637336a610cb4b8aaac08bd70d183f679fc7eb0febc7", kill_on_drop: false }`
[INFO] [stdout] 7e59bee4437f19ffa311637336a610cb4b8aaac08bd70d183f679fc7eb0febc7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--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] 483fd9cb64a7064a5b25bc2737b50d2d9fe8450e0b8e9709d9f4cfaacaf687f3
[INFO] running `Command { std: "docker" "start" "-a" "483fd9cb64a7064a5b25bc2737b50d2d9fe8450e0b8e9709d9f4cfaacaf687f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling terminal_size v0.1.17
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling textwrap v0.14.2
[INFO] [stderr]    Compiling clap v3.0.13
[INFO] [stderr]    Compiling show-files v0.7.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Quoted`
[INFO] [stdout]   --> src/displayer.rs:11:2
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Quoted,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Escaped`
[INFO] [stdout]   --> src/displayer.rs:14:2
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Escaped,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(iter_intersperse)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `show-files` due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "483fd9cb64a7064a5b25bc2737b50d2d9fe8450e0b8e9709d9f4cfaacaf687f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "483fd9cb64a7064a5b25bc2737b50d2d9fe8450e0b8e9709d9f4cfaacaf687f3", kill_on_drop: false }`
[INFO] [stdout] 483fd9cb64a7064a5b25bc2737b50d2d9fe8450e0b8e9709d9f4cfaacaf687f3