[INFO] cloning repository https://github.com/shelvacu/fwrf
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shelvacu/fwrf" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshelvacu%2Ffwrf", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshelvacu%2Ffwrf'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8df7cd0ccea5640549c3572d629e3c03afbc05dc
[INFO] testing shelvacu/fwrf against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshelvacu%2Ffwrf" "/workspace/builds/worker-35/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-35/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shelvacu/fwrf on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shelvacu/fwrf
[INFO] finished tweaking git repo https://github.com/shelvacu/fwrf
[INFO] tweaked toml for git repo https://github.com/shelvacu/fwrf written to /workspace/builds/worker-35/source/Cargo.toml
[INFO] crate git repo https://github.com/shelvacu/fwrf already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/shelvacu/deranged`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded devtimer v4.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d81e3c02613102dbb96b2a82b3c44d8bb5c4a6ca768ea6955cae962f35878673
[INFO] running `Command { std: "docker" "start" "-a" "d81e3c02613102dbb96b2a82b3c44d8bb5c4a6ca768ea6955cae962f35878673", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d81e3c02613102dbb96b2a82b3c44d8bb5c4a6ca768ea6955cae962f35878673", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d81e3c02613102dbb96b2a82b3c44d8bb5c4a6ca768ea6955cae962f35878673", kill_on_drop: false }`
[INFO] [stdout] d81e3c02613102dbb96b2a82b3c44d8bb5c4a6ca768ea6955cae962f35878673
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6936ebabbfbc180e02a9a2b83ef52e1921beb04a27e9b8e45c6080e398eee655
[INFO] running `Command { std: "docker" "start" "-a" "6936ebabbfbc180e02a9a2b83ef52e1921beb04a27e9b8e45c6080e398eee655", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling devtimer v4.0.1
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling deranged v0.2.0 (https://github.com/shelvacu/deranged?branch=array-indexes#fa8f7be2)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/deranged-716e85da005d618b/fa8f7be/src/lib.rs:39:1
[INFO] [stdout]    |
[INFO] [stdout] 39 | #![feature(const_panic)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]    |
[INFO] [stdout]    = help: the feature `const_panic` has been stable since 1.57.0 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 `deranged` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "6936ebabbfbc180e02a9a2b83ef52e1921beb04a27e9b8e45c6080e398eee655", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6936ebabbfbc180e02a9a2b83ef52e1921beb04a27e9b8e45c6080e398eee655", kill_on_drop: false }`
[INFO] [stdout] 6936ebabbfbc180e02a9a2b83ef52e1921beb04a27e9b8e45c6080e398eee655