[INFO] fetching crate aces 0.0.13...
[INFO] checking aces-0.0.13 against 1.95.0 for pr-155915
[INFO] extracting crate aces 0.0.13 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate aces 0.0.13
[INFO] finished tweaking crates.io crate aces 0.0.13
[INFO] tweaked toml for crates.io crate aces 0.0.13 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate aces 0.0.13 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 70 packages to latest compatible versions
[INFO] [stderr]       Adding bit-vec v0.6.3 (available: v0.9.1)
[INFO] [stderr]       Adding fern v0.6.2 (available: v0.7.1)
[INFO] [stderr]       Adding rand v0.7.3 (available: v0.10.1)
[INFO] [stderr]       Adding string_cache v0.8.9 (available: v0.9.0)
[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 varisat-dimacs v0.2.2
[INFO] [stderr]   Downloaded varisat-internal-proof v0.2.2
[INFO] [stderr]   Downloaded vec_mut_scan v0.3.0
[INFO] [stderr]   Downloaded varisat-internal-macros v0.2.2
[INFO] [stderr]   Downloaded partial_ref_derive v0.3.3
[INFO] [stderr]   Downloaded partial_ref v0.3.3
[INFO] [stderr]   Downloaded varisat-checker v0.2.2
[INFO] [stderr]   Downloaded varisat-formula v0.2.2
[INFO] [stderr]   Downloaded leb128 v0.2.6
[INFO] [stderr]   Downloaded colored v1.9.4
[INFO] [stderr]   Downloaded varisat v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 6f67b15c6ad6ba91e0150bf3a84e918585e42d26d4f70d2086b55b521829fb93
[INFO] running `Command { std: "docker" "start" "-a" "6f67b15c6ad6ba91e0150bf3a84e918585e42d26d4f70d2086b55b521829fb93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f67b15c6ad6ba91e0150bf3a84e918585e42d26d4f70d2086b55b521829fb93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f67b15c6ad6ba91e0150bf3a84e918585e42d26d4f70d2086b55b521829fb93", kill_on_drop: false }`
[INFO] [stdout] 6f67b15c6ad6ba91e0150bf3a84e918585e42d26d4f70d2086b55b521829fb93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 3cb60c32b402b763d34b929aeab0916381afd92ce4d01633614ac6e1204ed5eb
[INFO] running `Command { std: "docker" "start" "-a" "3cb60c32b402b763d34b929aeab0916381afd92ce4d01633614ac6e1204ed5eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking varisat-formula v0.2.2
[INFO] [stderr]    Compiling anyhow v1.0.102
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]     Checking is-terminal v0.4.17
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking phf_shared v0.11.3
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]    Compiling varisat v0.2.2
[INFO] [stderr]     Checking varisat-internal-proof v0.2.2
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking colored v1.9.4
[INFO] [stderr]     Checking ordered-float v2.10.1
[INFO] [stderr]     Checking vec_mut_scan v0.3.0
[INFO] [stderr]     Checking leb128 v0.2.6
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking fern v0.6.2
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling partial_ref_derive v0.3.3
[INFO] [stderr]     Checking partial_ref v0.3.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking varisat-dimacs v0.2.2
[INFO] [stderr]     Checking varisat-checker v0.2.2
[INFO] [stderr]    Compiling varisat-internal-macros v0.2.2
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking string_cache v0.8.9
[INFO] [stderr]     Checking aces v0.0.13 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(bool_to_option)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(bool_to_option)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `bool_to_option` has been stable since 1.62.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(bool_to_option)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `bool_to_option` has been stable since 1.62.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(bool_to_option)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `aces` (lib) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `aces` (lib test) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "3cb60c32b402b763d34b929aeab0916381afd92ce4d01633614ac6e1204ed5eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cb60c32b402b763d34b929aeab0916381afd92ce4d01633614ac6e1204ed5eb", kill_on_drop: false }`
[INFO] [stdout] 3cb60c32b402b763d34b929aeab0916381afd92ce4d01633614ac6e1204ed5eb
