[INFO] fetching crate whippyunits-pretty 0.1.0...
[INFO] checking whippyunits-pretty-0.1.0 against 1.95.0 for pr-155915
[INFO] extracting crate whippyunits-pretty 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate whippyunits-pretty 0.1.0
[INFO] finished tweaking crates.io crate whippyunits-pretty 0.1.0
[INFO] tweaked toml for crates.io crate whippyunits-pretty 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate whippyunits-pretty 0.1.0 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate whippyunits-pretty 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded whippyunits-proc-macros v0.1.0
[INFO] [stderr]   Downloaded op_result v0.5.8
[INFO] [stderr]   Downloaded whippyunits-core v0.1.0
[INFO] [stderr]   Downloaded whippyunits-lsp-proxy v0.1.0
[INFO] [stderr]   Downloaded litrs v0.5.1
[INFO] [stderr]   Downloaded culit v0.6.0
[INFO] [stderr]   Downloaded whippyunits v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] abfa3bed39ddc25f6f0b2ca3bbb1ade4dd0a4cff8ff130031bde3f0fd7563dac
[INFO] running `Command { std: "docker" "start" "-a" "abfa3bed39ddc25f6f0b2ca3bbb1ade4dd0a4cff8ff130031bde3f0fd7563dac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "abfa3bed39ddc25f6f0b2ca3bbb1ade4dd0a4cff8ff130031bde3f0fd7563dac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abfa3bed39ddc25f6f0b2ca3bbb1ade4dd0a4cff8ff130031bde3f0fd7563dac", kill_on_drop: false }`
[INFO] [stdout] abfa3bed39ddc25f6f0b2ca3bbb1ade4dd0a4cff8ff130031bde3f0fd7563dac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75c613ea58c75cf41a1679577c62b2b43f625bdc3b6cbacb45f6f563e8c5ec0e
[INFO] running `Command { std: "docker" "start" "-a" "75c613ea58c75cf41a1679577c62b2b43f625bdc3b6cbacb45f6f563e8c5ec0e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.102
[INFO] [stderr]    Compiling unicode-ident v1.0.20
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]     Checking regex-syntax v0.8.8
[INFO] [stderr]     Checking anstyle-query v1.1.4
[INFO] [stderr]     Checking dirs-sys v0.5.0
[INFO] [stderr]     Checking clap_lex v0.7.6
[INFO] [stderr]    Compiling litrs v0.5.1
[INFO] [stderr]    Compiling anyhow v1.0.100
[INFO] [stderr]     Checking socket2 v0.6.1
[INFO] [stderr]     Checking signal-hook-registry v1.4.6
[INFO] [stderr]     Checking is-terminal v0.4.16
[INFO] [stderr]     Checking mio v1.1.0
[INFO] [stderr]     Checking log v0.4.28
[INFO] [stderr]     Checking anstream v0.6.21
[INFO] [stderr]     Checking dirs v6.0.0
[INFO] [stderr]     Checking shellexpand v3.1.1
[INFO] [stderr]     Checking clap_builder v4.5.50
[INFO] [stderr]    Compiling culit v0.6.0
[INFO] [stderr]     Checking syn v2.0.108
[INFO] [stderr]     Checking regex-automata v0.4.13
[INFO] [stderr]     Checking tempfile v3.23.0
[INFO] [stderr]     Checking regex v1.12.2
[INFO] [stderr]     Checking whippyunits-core v0.1.0
[INFO] [stderr]     Checking env_logger v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling clap_derive v4.5.49
[INFO] [stderr]    Compiling tokio-macros v2.6.0
[INFO] [stderr]    Compiling op_result v0.5.8
[INFO] [stderr]     Checking tokio v1.48.0
[INFO] [stderr]    Compiling whippyunits-proc-macros v0.1.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/whippyunits-proc-macros-0.1.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(trait_alias)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking clap v4.5.50
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `whippyunits-proc-macros` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "75c613ea58c75cf41a1679577c62b2b43f625bdc3b6cbacb45f6f563e8c5ec0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75c613ea58c75cf41a1679577c62b2b43f625bdc3b6cbacb45f6f563e8c5ec0e", kill_on_drop: false }`
[INFO] [stdout] 75c613ea58c75cf41a1679577c62b2b43f625bdc3b6cbacb45f6f563e8c5ec0e