[INFO] fetching crate safety-macro 0.4.1...
[INFO] checking safety-macro-0.4.1 against 1.95.0 for pr-155915
[INFO] extracting crate safety-macro 0.4.1 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate safety-macro 0.4.1
[INFO] finished tweaking crates.io crate safety-macro 0.4.1
[INFO] tweaked toml for crates.io crate safety-macro 0.4.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate safety-macro 0.4.1 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 safety-macro 0.4.1 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 safety-parser v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 8e1f8bf025cf41a64639baf84c3c703c5cbf810defc72c1e8194ed44164d8cca
[INFO] running `Command { std: "docker" "start" "-a" "8e1f8bf025cf41a64639baf84c3c703c5cbf810defc72c1e8194ed44164d8cca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e1f8bf025cf41a64639baf84c3c703c5cbf810defc72c1e8194ed44164d8cca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e1f8bf025cf41a64639baf84c3c703c5cbf810defc72c1e8194ed44164d8cca", kill_on_drop: false }`
[INFO] [stdout] 8e1f8bf025cf41a64639baf84c3c703c5cbf810defc72c1e8194ed44164d8cca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] f686c05dbdc473bfa1a9275f171f669104124d605831efed9d76d6a011fbd2b4
[INFO] running `Command { std: "docker" "start" "-a" "f686c05dbdc473bfa1a9275f171f669104124d605831efed9d76d6a011fbd2b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]     Checking memchr v2.7.6
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]     Checking winnow v0.7.13
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]     Checking toml_writer v1.0.3
[INFO] [stderr]     Checking equivalent v1.0.2
[INFO] [stderr]     Checking hashbrown v0.16.0
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]     Checking toml_parser v1.0.3
[INFO] [stderr]     Checking toml_datetime v0.7.2
[INFO] [stderr]     Checking serde_spanned v1.0.2
[INFO] [stderr]     Checking indexmap v2.11.4
[INFO] [stderr]     Checking toml v0.9.7
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking safety-parser v0.4.1
[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/safety-parser-0.4.1/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(let_chains)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `let_chains` has been stable since `1.88.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `safety-parser` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "f686c05dbdc473bfa1a9275f171f669104124d605831efed9d76d6a011fbd2b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f686c05dbdc473bfa1a9275f171f669104124d605831efed9d76d6a011fbd2b4", kill_on_drop: false }`
[INFO] [stdout] f686c05dbdc473bfa1a9275f171f669104124d605831efed9d76d6a011fbd2b4