[INFO] fetching crate quake-util 0.2.0...
[INFO] testing quake-util-0.2.0 against 1.75.0 for beta-1.76-1
[INFO] extracting crate quake-util 0.2.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate quake-util 0.2.0 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate quake-util 0.2.0
[INFO] finished tweaking crates.io crate quake-util 0.2.0
[INFO] tweaked toml for crates.io crate quake-util 0.2.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate quake-util 0.2.0 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hashbrown v0.12.0
[INFO] [stderr]   Downloaded benchmarking v0.4.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94b4bcef6f428ffc85ab9ee40211ea3070f366ae7755ddf6ccdf453063f17ffc
[INFO] running `Command { std: "docker" "start" "-a" "94b4bcef6f428ffc85ab9ee40211ea3070f366ae7755ddf6ccdf453063f17ffc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94b4bcef6f428ffc85ab9ee40211ea3070f366ae7755ddf6ccdf453063f17ffc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94b4bcef6f428ffc85ab9ee40211ea3070f366ae7755ddf6ccdf453063f17ffc", kill_on_drop: false }`
[INFO] [stdout] 94b4bcef6f428ffc85ab9ee40211ea3070f366ae7755ddf6ccdf453063f17ffc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 798c527f73e3b605476f3cd46da36814542b69f7579b17ab4649a0d312f392e8
[INFO] running `Command { std: "docker" "start" "-a" "798c527f73e3b605476f3cd46da36814542b69f7579b17ab4649a0d312f392e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling quake-util v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:38
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![cfg_attr(feature = "std", feature(io_error_other))]
[INFO] [stdout]   |                                      ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `io_error_other` has been stable since 1.74.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:38
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![cfg_attr(feature = "std", feature(io_error_other))]
[INFO] [stdout]   |                                      ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `quake-util` (lib) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "798c527f73e3b605476f3cd46da36814542b69f7579b17ab4649a0d312f392e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "798c527f73e3b605476f3cd46da36814542b69f7579b17ab4649a0d312f392e8", kill_on_drop: false }`
[INFO] [stdout] 798c527f73e3b605476f3cd46da36814542b69f7579b17ab4649a0d312f392e8
