[INFO] fetching crate no_mutex 0.0.1...
[INFO] testing no_mutex-0.0.1 against 1.75.0 for beta-1.76-1
[INFO] extracting crate no_mutex 0.0.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate no_mutex 0.0.1 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 no_mutex 0.0.1
[INFO] finished tweaking crates.io crate no_mutex 0.0.1
[INFO] tweaked toml for crates.io crate no_mutex 0.0.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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] 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] 69c837f79eb4434b20ffae4918a1c5b1b97f9af0a90302b5e25a28e58ba197af
[INFO] running `Command { std: "docker" "start" "-a" "69c837f79eb4434b20ffae4918a1c5b1b97f9af0a90302b5e25a28e58ba197af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "69c837f79eb4434b20ffae4918a1c5b1b97f9af0a90302b5e25a28e58ba197af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69c837f79eb4434b20ffae4918a1c5b1b97f9af0a90302b5e25a28e58ba197af", kill_on_drop: false }`
[INFO] [stdout] 69c837f79eb4434b20ffae4918a1c5b1b97f9af0a90302b5e25a28e58ba197af
[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] 98f33821b39599c7bbdf31040b3e3b8a42c390afdecbeb7a3fbaaae9fe25c3da
[INFO] running `Command { std: "docker" "start" "-a" "98f33821b39599c7bbdf31040b3e3b8a42c390afdecbeb7a3fbaaae9fe25c3da", kill_on_drop: false }`
[INFO] [stderr]    Compiling no_mutex v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_fn)]
[INFO] [stdout]   |            ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[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 E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `no_mutex` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "98f33821b39599c7bbdf31040b3e3b8a42c390afdecbeb7a3fbaaae9fe25c3da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98f33821b39599c7bbdf31040b3e3b8a42c390afdecbeb7a3fbaaae9fe25c3da", kill_on_drop: false }`
[INFO] [stdout] 98f33821b39599c7bbdf31040b3e3b8a42c390afdecbeb7a3fbaaae9fe25c3da
[INFO] testing no_mutex-0.0.1 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate no_mutex 0.0.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate no_mutex 0.0.1 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate no_mutex 0.0.1
[INFO] finished tweaking crates.io crate no_mutex 0.0.1
[INFO] tweaked toml for crates.io crate no_mutex 0.0.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ffc591ed19e0807a0f14edd639a34513f83be29e181dc91b03c9592593eddd16
[INFO] running `Command { std: "docker" "start" "-a" "ffc591ed19e0807a0f14edd639a34513f83be29e181dc91b03c9592593eddd16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ffc591ed19e0807a0f14edd639a34513f83be29e181dc91b03c9592593eddd16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffc591ed19e0807a0f14edd639a34513f83be29e181dc91b03c9592593eddd16", kill_on_drop: false }`
[INFO] [stdout] ffc591ed19e0807a0f14edd639a34513f83be29e181dc91b03c9592593eddd16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+beta-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c9f1534cd8afab99bbb7a4b4ca9a093bbffbe3670ba6c5b8380af6ca345486d2
[INFO] running `Command { std: "docker" "start" "-a" "c9f1534cd8afab99bbb7a4b4ca9a093bbffbe3670ba6c5b8380af6ca345486d2", kill_on_drop: false }`
[INFO] [stderr]    Compiling no_mutex v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_fn)]
[INFO] [stdout]   |            ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `no_mutex` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "c9f1534cd8afab99bbb7a4b4ca9a093bbffbe3670ba6c5b8380af6ca345486d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9f1534cd8afab99bbb7a4b4ca9a093bbffbe3670ba6c5b8380af6ca345486d2", kill_on_drop: false }`
[INFO] [stdout] c9f1534cd8afab99bbb7a4b4ca9a093bbffbe3670ba6c5b8380af6ca345486d2
