[INFO] fetching crate no_mutex 0.0.1...
[INFO] testing no_mutex-0.0.1 against 1.76.0 for beta-1.77-1
[INFO] extracting crate no_mutex 0.0.1 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate no_mutex 0.0.1 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "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-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "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" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f2dc4cd94746ddd10b220b76fefa80eb7dca082f5750cf7e45ef5db25ca4c294
[INFO] running `Command { std: "docker" "start" "-a" "f2dc4cd94746ddd10b220b76fefa80eb7dca082f5750cf7e45ef5db25ca4c294", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2dc4cd94746ddd10b220b76fefa80eb7dca082f5750cf7e45ef5db25ca4c294", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2dc4cd94746ddd10b220b76fefa80eb7dca082f5750cf7e45ef5db25ca4c294", kill_on_drop: false }`
[INFO] [stdout] f2dc4cd94746ddd10b220b76fefa80eb7dca082f5750cf7e45ef5db25ca4c294
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+1.76.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d131f3395a9d49635bd04424888aa8431efaeef20c57dd15d1aad42c15387b4a
[INFO] running `Command { std: "docker" "start" "-a" "d131f3395a9d49635bd04424888aa8431efaeef20c57dd15d1aad42c15387b4a", 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" "d131f3395a9d49635bd04424888aa8431efaeef20c57dd15d1aad42c15387b4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d131f3395a9d49635bd04424888aa8431efaeef20c57dd15d1aad42c15387b4a", kill_on_drop: false }`
[INFO] [stdout] d131f3395a9d49635bd04424888aa8431efaeef20c57dd15d1aad42c15387b4a
[INFO] testing no_mutex-0.0.1 against beta-2024-02-10 for beta-1.77-1
[INFO] extracting crate no_mutex 0.0.1 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate no_mutex 0.0.1 on toolchain beta-2024-02-10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "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-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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-2024-02-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd8eb5fc31e33ee8f29888608083e523cb4f262bc378c5d44996fc8321461206
[INFO] running `Command { std: "docker" "start" "-a" "cd8eb5fc31e33ee8f29888608083e523cb4f262bc378c5d44996fc8321461206", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd8eb5fc31e33ee8f29888608083e523cb4f262bc378c5d44996fc8321461206", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd8eb5fc31e33ee8f29888608083e523cb4f262bc378c5d44996fc8321461206", kill_on_drop: false }`
[INFO] [stdout] cd8eb5fc31e33ee8f29888608083e523cb4f262bc378c5d44996fc8321461206
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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-2024-02-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb789669b92adaca1f773ab57cec6997e91d1d932d0fe77284188c44232fcb96
[INFO] running `Command { std: "docker" "start" "-a" "fb789669b92adaca1f773ab57cec6997e91d1d932d0fe77284188c44232fcb96", 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" "fb789669b92adaca1f773ab57cec6997e91d1d932d0fe77284188c44232fcb96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb789669b92adaca1f773ab57cec6997e91d1d932d0fe77284188c44232fcb96", kill_on_drop: false }`
[INFO] [stdout] fb789669b92adaca1f773ab57cec6997e91d1d932d0fe77284188c44232fcb96
