[INFO] fetching crate divrem 1.0.0...
[INFO] testing divrem-1.0.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate divrem 1.0.0 into /workspace/builds/worker-26/source
[INFO] validating manifest of crates.io crate divrem 1.0.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-26/source/rust-toolchain
[INFO] started tweaking crates.io crate divrem 1.0.0
[INFO] finished tweaking crates.io crate divrem 1.0.0
[INFO] tweaked toml for crates.io crate divrem 1.0.0 written to /workspace/builds/worker-26/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c468df0700fb4127597423584083a8f84759e7c0bf8483869f8816fef5a065da
[INFO] running `Command { std: "docker" "start" "-a" "c468df0700fb4127597423584083a8f84759e7c0bf8483869f8816fef5a065da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c468df0700fb4127597423584083a8f84759e7c0bf8483869f8816fef5a065da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c468df0700fb4127597423584083a8f84759e7c0bf8483869f8816fef5a065da", kill_on_drop: false }`
[INFO] [stdout] c468df0700fb4127597423584083a8f84759e7c0bf8483869f8816fef5a065da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a16c36e14c035db877eb7e9ca28e198774987f9f3e3b38e084f14614b1dd5a4
[INFO] running `Command { std: "docker" "start" "-a" "8a16c36e14c035db877eb7e9ca28e198774987f9f3e3b38e084f14614b1dd5a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling divrem v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.29s
[INFO] running `Command { std: "docker" "inspect" "8a16c36e14c035db877eb7e9ca28e198774987f9f3e3b38e084f14614b1dd5a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a16c36e14c035db877eb7e9ca28e198774987f9f3e3b38e084f14614b1dd5a4", kill_on_drop: false }`
[INFO] [stdout] 8a16c36e14c035db877eb7e9ca28e198774987f9f3e3b38e084f14614b1dd5a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 94c2bab2d514f6744679f207a9c559e7d0ad71d783234b5abba9087a343f3bb2
[INFO] running `Command { std: "docker" "start" "-a" "94c2bab2d514f6744679f207a9c559e7d0ad71d783234b5abba9087a343f3bb2", kill_on_drop: false }`
[INFO] [stderr]    Compiling divrem v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> tests/lib.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(concat_idents)]
[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 `divrem` 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" "94c2bab2d514f6744679f207a9c559e7d0ad71d783234b5abba9087a343f3bb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94c2bab2d514f6744679f207a9c559e7d0ad71d783234b5abba9087a343f3bb2", kill_on_drop: false }`
[INFO] [stdout] 94c2bab2d514f6744679f207a9c559e7d0ad71d783234b5abba9087a343f3bb2