[INFO] cloning repository https://github.com/Crypec/zuse
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Crypec/zuse" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCrypec%2Fzuse", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCrypec%2Fzuse'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 69e799033bd122fe369cfd7f1982b7a5039e6d52
[INFO] testing Crypec/zuse against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCrypec%2Fzuse" "/workspace/builds/worker-75/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-75/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Crypec/zuse 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/Crypec/zuse
[INFO] finished tweaking git repo https://github.com/Crypec/zuse
[INFO] tweaked toml for git repo https://github.com/Crypec/zuse written to /workspace/builds/worker-75/source/Cargo.toml
[INFO] crate git repo https://github.com/Crypec/zuse 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded typed-builder v0.9.0
[INFO] [stderr]   Downloaded parse-display-derive v0.4.1
[INFO] [stderr]   Downloaded parse-display v0.4.1
[INFO] [stderr]   Downloaded pretty_assertions v0.7.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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] f058bd294802d9561ae64ef43a1d3459513adbbf01b18f4641da83463ee116c3
[INFO] running `Command { std: "docker" "start" "-a" "f058bd294802d9561ae64ef43a1d3459513adbbf01b18f4641da83463ee116c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f058bd294802d9561ae64ef43a1d3459513adbbf01b18f4641da83463ee116c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f058bd294802d9561ae64ef43a1d3459513adbbf01b18f4641da83463ee116c3", kill_on_drop: false }`
[INFO] [stdout] f058bd294802d9561ae64ef43a1d3459513adbbf01b18f4641da83463ee116c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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] 67173303efe00de0e525e2109d80bd76aca2e0facdd08cb60ce1cf751a5e012d
[INFO] running `Command { std: "docker" "start" "-a" "67173303efe00de0e525e2109d80bd76aca2e0facdd08cb60ce1cf751a5e012d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling regex-syntax v0.6.23
[INFO] [stderr]    Compiling konrad_span v0.1.0 (/opt/rustwide/workdir/compiler/konrad_span)
[INFO] [stderr]    Compiling once_cell v1.7.2
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling float-cmp v0.8.0
[INFO] [stderr]    Compiling konrad_typer v0.1.0 (/opt/rustwide/workdir/compiler/konrad_typer)
[INFO] [stderr]    Compiling regex v1.4.6
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling colored v2.0.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling typed-builder v0.9.0
[INFO] [stderr]    Compiling parse-display-derive v0.4.1
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling konrad_err v0.1.0 (/opt/rustwide/workdir/compiler/konrad_err)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> compiler/konrad_err/src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(iter_intersperse)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[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 `konrad_err` 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" "67173303efe00de0e525e2109d80bd76aca2e0facdd08cb60ce1cf751a5e012d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67173303efe00de0e525e2109d80bd76aca2e0facdd08cb60ce1cf751a5e012d", kill_on_drop: false }`
[INFO] [stdout] 67173303efe00de0e525e2109d80bd76aca2e0facdd08cb60ce1cf751a5e012d