[INFO] fetching crate is_sorted 0.1.1...
[INFO] testing is_sorted-0.1.1 against 1.59.0 for beta-1.60-1
[INFO] extracting crate is_sorted 0.1.1 into /workspace/builds/worker-56/source
[INFO] validating manifest of crates.io crate is_sorted 0.1.1 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate is_sorted 0.1.1
[INFO] finished tweaking crates.io crate is_sorted 0.1.1
[INFO] tweaked toml for crates.io crate is_sorted 0.1.1 written to /workspace/builds/worker-56/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8a03834f447ba44b87b5e4869808e1ffde9933a7fc9a8fe8e60252b43f6d2d67
[INFO] running `Command { std: "docker" "start" "-a" "8a03834f447ba44b87b5e4869808e1ffde9933a7fc9a8fe8e60252b43f6d2d67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8a03834f447ba44b87b5e4869808e1ffde9933a7fc9a8fe8e60252b43f6d2d67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a03834f447ba44b87b5e4869808e1ffde9933a7fc9a8fe8e60252b43f6d2d67", kill_on_drop: false }`
[INFO] [stdout] 8a03834f447ba44b87b5e4869808e1ffde9933a7fc9a8fe8e60252b43f6d2d67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ea7d1fb21dbc02d31aef22caaa2dbb7465c787e83cbfb0a90ded9e292947971
[INFO] running `Command { std: "docker" "start" "-a" "8ea7d1fb21dbc02d31aef22caaa2dbb7465c787e83cbfb0a90ded9e292947971", kill_on_drop: false }`
[INFO] [stderr]    Compiling is_sorted v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "8ea7d1fb21dbc02d31aef22caaa2dbb7465c787e83cbfb0a90ded9e292947971", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ea7d1fb21dbc02d31aef22caaa2dbb7465c787e83cbfb0a90ded9e292947971", kill_on_drop: false }`
[INFO] [stdout] 8ea7d1fb21dbc02d31aef22caaa2dbb7465c787e83cbfb0a90ded9e292947971
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85c51ab2ede77df3c1ba357b278ce12e2223b17e748db1e93684c86f1954d582
[INFO] running `Command { std: "docker" "start" "-a" "85c51ab2ede77df3c1ba357b278ce12e2223b17e748db1e93684c86f1954d582", kill_on_drop: false }`
[INFO] [stderr]    Compiling is_sorted v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> tests/floats.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(trace_macros)]
[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 `is_sorted` 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" "85c51ab2ede77df3c1ba357b278ce12e2223b17e748db1e93684c86f1954d582", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85c51ab2ede77df3c1ba357b278ce12e2223b17e748db1e93684c86f1954d582", kill_on_drop: false }`
[INFO] [stdout] 85c51ab2ede77df3c1ba357b278ce12e2223b17e748db1e93684c86f1954d582