[INFO] fetching crate rust-fp-pfds 0.0.4...
[INFO] checking rust-fp-pfds-0.0.4 against 1.95.0 for pr-155915
[INFO] extracting crate rust-fp-pfds 0.0.4 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate rust-fp-pfds 0.0.4
[INFO] finished tweaking crates.io crate rust-fp-pfds 0.0.4
[INFO] tweaked toml for crates.io crate rust-fp-pfds 0.0.4 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust-fp-pfds 0.0.4 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 26 packages to latest compatible versions
[INFO] [stderr]       Adding quickcheck v0.9.2 (available: v1.1.0)
[INFO] [stderr]       Adding quickcheck_macros v0.9.1 (available: v1.2.0)
[INFO] [stderr]       Adding rust-fp-categories v0.0.4 (available: v0.0.5)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rust-fp-categories v0.0.4
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 004eac761561a074874c688e7bbeb402b93780d5ad73d277985d47026da4f1a1
[INFO] running `Command { std: "docker" "start" "-a" "004eac761561a074874c688e7bbeb402b93780d5ad73d277985d47026da4f1a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "004eac761561a074874c688e7bbeb402b93780d5ad73d277985d47026da4f1a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "004eac761561a074874c688e7bbeb402b93780d5ad73d277985d47026da4f1a1", kill_on_drop: false }`
[INFO] [stdout] 004eac761561a074874c688e7bbeb402b93780d5ad73d277985d47026da4f1a1
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2790d69588b3870a6f822a73f8c11b5bd26dc532ae18804d7a361819c56b499
[INFO] running `Command { std: "docker" "start" "-a" "f2790d69588b3870a6f822a73f8c11b5bd26dc532ae18804d7a361819c56b499", kill_on_drop: false }`
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking rust-fp-categories v0.0.4
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rust-fp-categories-0.0.4/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generic_associated_types)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `generic_associated_types` has been stable since `1.65.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-fp-categories` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f2790d69588b3870a6f822a73f8c11b5bd26dc532ae18804d7a361819c56b499", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2790d69588b3870a6f822a73f8c11b5bd26dc532ae18804d7a361819c56b499", kill_on_drop: false }`
[INFO] [stdout] f2790d69588b3870a6f822a73f8c11b5bd26dc532ae18804d7a361819c56b499