[INFO] cloning repository https://github.com/nonneb/bbconv
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nonneb/bbconv" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnonneb%2Fbbconv", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnonneb%2Fbbconv'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4bbf66603d9234691a1321aa7cb4aecd259b1788
[INFO] testing nonneb/bbconv against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnonneb%2Fbbconv" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nonneb/bbconv on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nonneb/bbconv
[INFO] finished tweaking git repo https://github.com/nonneb/bbconv
[INFO] tweaked toml for git repo https://github.com/nonneb/bbconv written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/nonneb/bbconv already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--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-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0bc2a4f2626c04b54e51af088ac9197b14a91aaa5b2f48f826ec0e6481f1c2b6
[INFO] running `Command { std: "docker" "start" "-a" "0bc2a4f2626c04b54e51af088ac9197b14a91aaa5b2f48f826ec0e6481f1c2b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0bc2a4f2626c04b54e51af088ac9197b14a91aaa5b2f48f826ec0e6481f1c2b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bc2a4f2626c04b54e51af088ac9197b14a91aaa5b2f48f826ec0e6481f1c2b6", kill_on_drop: false }`
[INFO] [stdout] 0bc2a4f2626c04b54e51af088ac9197b14a91aaa5b2f48f826ec0e6481f1c2b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 236b54837dafbe4feb0883b8d086bdabdcb345ee7dd74fdf53ebd4f0164a8451
[INFO] running `Command { std: "docker" "start" "-a" "236b54837dafbe4feb0883b8d086bdabdcb345ee7dd74fdf53ebd4f0164a8451", kill_on_drop: false }`
[INFO] [stderr]    Compiling bbconv v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(slice_patterns)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `slice_patterns` has been stable since 1.42.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bbconv`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "236b54837dafbe4feb0883b8d086bdabdcb345ee7dd74fdf53ebd4f0164a8451", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "236b54837dafbe4feb0883b8d086bdabdcb345ee7dd74fdf53ebd4f0164a8451", kill_on_drop: false }`
[INFO] [stdout] 236b54837dafbe4feb0883b8d086bdabdcb345ee7dd74fdf53ebd4f0164a8451
