[INFO] fetching crate contour-isobands 0.4.3...
[INFO] checking contour-isobands-0.4.3 against 1.95.0 for pr-155915
[INFO] extracting crate contour-isobands 0.4.3 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate contour-isobands 0.4.3
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate contour-isobands 0.4.3
[INFO] tweaked toml for crates.io crate contour-isobands 0.4.3 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate contour-isobands 0.4.3 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 contour-isobands 0.4.3 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 quote v1.0.33
[INFO] [stderr]   Downloaded itoa v1.0.9
[INFO] [stderr]   Downloaded serde_derive v1.0.188
[INFO] [stderr]   Downloaded thiserror-impl v1.0.49
[INFO] [stderr]   Downloaded thiserror v1.0.49
[INFO] [stderr]   Downloaded geo-types v0.7.11
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.16
[INFO] [stderr]   Downloaded ryu v1.0.15
[INFO] [stderr]   Downloaded num-traits v0.2.16
[INFO] [stderr]   Downloaded rayon-core v1.12.0
[INFO] [stderr]   Downloaded libm v0.2.7
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.15
[INFO] [stderr]   Downloaded rayon v1.8.0
[INFO] [stderr]   Downloaded serde v1.0.188
[INFO] [stderr]   Downloaded geojson v0.24.1
[INFO] [stderr]   Downloaded syn v2.0.37
[INFO] [stderr]   Downloaded serde_json v1.0.107
[INFO] [stderr]   Downloaded proc-macro2 v1.0.67
[INFO] [stderr]   Downloaded either v1.9.0
[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] f52a5d2ac627c4f32dbee83f3dc2a81141d3ae7967628ab2a9100430a6917ff9
[INFO] running `Command { std: "docker" "start" "-a" "f52a5d2ac627c4f32dbee83f3dc2a81141d3ae7967628ab2a9100430a6917ff9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f52a5d2ac627c4f32dbee83f3dc2a81141d3ae7967628ab2a9100430a6917ff9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f52a5d2ac627c4f32dbee83f3dc2a81141d3ae7967628ab2a9100430a6917ff9", kill_on_drop: false }`
[INFO] [stdout] f52a5d2ac627c4f32dbee83f3dc2a81141d3ae7967628ab2a9100430a6917ff9
[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] e311515e279bfbea977dde6d6880433a029266af9333505ce29a9ef79005bcb8
[INFO] running `Command { std: "docker" "start" "-a" "e311515e279bfbea977dde6d6880433a029266af9333505ce29a9ef79005bcb8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.7
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling serde_json v1.0.107
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]     Checking geo-types v0.7.11
[INFO] [stderr]     Checking contour-isobands v0.4.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> benches/bench.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[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 `contour-isobands` (bench "bench") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "e311515e279bfbea977dde6d6880433a029266af9333505ce29a9ef79005bcb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e311515e279bfbea977dde6d6880433a029266af9333505ce29a9ef79005bcb8", kill_on_drop: false }`
[INFO] [stdout] e311515e279bfbea977dde6d6880433a029266af9333505ce29a9ef79005bcb8
