[INFO] fetching crate rooc 0.1.22...
[INFO] checking rooc-0.1.22 against 1.95.0 for pr-155915
[INFO] extracting crate rooc 0.1.22 into /workspace/builds/worker-7-tc1/source
[INFO] removed /workspace/builds/worker-7-tc1/source/.cargo/config.toml
[INFO] started tweaking crates.io crate rooc 0.1.22
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate rooc 0.1.22
[INFO] tweaked toml for crates.io crate rooc 0.1.22 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rooc 0.1.22 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 rooc 0.1.22 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 good_lp v1.15.0
[INFO] [stderr]   Downloaded wasm-bindgen-test-macro v0.3.61
[INFO] [stderr]   Downloaded web-time v0.2.4
[INFO] [stderr]   Downloaded copper v0.1.0
[INFO] [stderr]   Downloaded wasm-bindgen-test-shared v0.2.111
[INFO] [stderr]   Downloaded derive_builder_core v0.11.2
[INFO] [stderr]   Downloaded derive_builder v0.11.2
[INFO] [stderr]   Downloaded wasm-bindgen-test v0.3.61
[INFO] [stderr]   Downloaded microlp v0.4.0
[INFO] [stderr]   Downloaded derive_builder_macro v0.11.2
[INFO] [stderr]   Downloaded utf8_slice v1.0.0
[INFO] [stderr]   Downloaded clarabel v0.11.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] d395e6cfd119997d2ef524dde45ee514eebf8f7e8e5540b08023dc61f9f35847
[INFO] running `Command { std: "docker" "start" "-a" "d395e6cfd119997d2ef524dde45ee514eebf8f7e8e5540b08023dc61f9f35847", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d395e6cfd119997d2ef524dde45ee514eebf8f7e8e5540b08023dc61f9f35847", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d395e6cfd119997d2ef524dde45ee514eebf8f7e8e5540b08023dc61f9f35847", kill_on_drop: false }`
[INFO] [stdout] d395e6cfd119997d2ef524dde45ee514eebf8f7e8e5540b08023dc61f9f35847
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 00e03ddb3cafee7aa44785856adae3189e02186cf94ef806a9ee306a150fa648
[INFO] running `Command { std: "docker" "start" "-a" "00e03ddb3cafee7aa44785856adae3189e02186cf94ef806a9ee306a150fa648", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling matrixmultiply v0.3.10
[INFO] [stderr]    Compiling clarabel v0.11.1
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling pest_meta v2.8.6
[INFO] [stderr]     Checking copper v0.1.0
[INFO] [stderr]     Checking utf8_slice v1.0.0
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking amd v0.2.2
[INFO] [stderr]     Checking indexmap v2.13.0
[INFO] [stderr]     Checking num-bigint v0.4.6
[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/copper-0.1.0/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(int_roundings)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `copper` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "00e03ddb3cafee7aa44785856adae3189e02186cf94ef806a9ee306a150fa648", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00e03ddb3cafee7aa44785856adae3189e02186cf94ef806a9ee306a150fa648", kill_on_drop: false }`
[INFO] [stdout] 00e03ddb3cafee7aa44785856adae3189e02186cf94ef806a9ee306a150fa648