[INFO] fetching crate leapfrog 0.3.3...
[INFO] checking leapfrog-0.3.3 against 1.95.0 for pr-155915
[INFO] extracting crate leapfrog 0.3.3 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate leapfrog 0.3.3
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate leapfrog 0.3.3
[INFO] tweaked toml for crates.io crate leapfrog 0.3.3 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate leapfrog 0.3.3 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] crate crates.io crate leapfrog 0.3.3 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded atomic v0.5.3
[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] 507cd7939fe1da5d941e9c354de64df253b7cccea8bd7246f44ab29dc4df4dfe
[INFO] running `Command { std: "docker" "start" "-a" "507cd7939fe1da5d941e9c354de64df253b7cccea8bd7246f44ab29dc4df4dfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "507cd7939fe1da5d941e9c354de64df253b7cccea8bd7246f44ab29dc4df4dfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "507cd7939fe1da5d941e9c354de64df253b7cccea8bd7246f44ab29dc4df4dfe", kill_on_drop: false }`
[INFO] [stdout] 507cd7939fe1da5d941e9c354de64df253b7cccea8bd7246f44ab29dc4df4dfe
[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] e89b87cfc2c190d6fd9bcb8c5f999e722dba078ac3586639dee262e5cedb657e
[INFO] running `Command { std: "docker" "start" "-a" "e89b87cfc2c190d6fd9bcb8c5f999e722dba078ac3586639dee262e5cedb657e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]     Checking half v2.6.0
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]     Checking clap_lex v0.7.5
[INFO] [stderr]     Checking anstyle v1.0.11
[INFO] [stderr]     Checking is-terminal v0.4.16
[INFO] [stderr]     Checking num_cpus v1.17.0
[INFO] [stderr]     Checking atomic v0.5.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking leapfrog v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking clap_builder v4.5.40
[INFO] [stderr]     Checking core_affinity v0.8.3
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:153:44
[INFO] [stdout]     |
[INFO] [stdout] 153 | #![cfg_attr(not(feature = "stable_alloc"), feature(allocator_api))]
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking ciborium-ll v0.2.2
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `leapfrog` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "e89b87cfc2c190d6fd9bcb8c5f999e722dba078ac3586639dee262e5cedb657e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e89b87cfc2c190d6fd9bcb8c5f999e722dba078ac3586639dee262e5cedb657e", kill_on_drop: false }`
[INFO] [stdout] e89b87cfc2c190d6fd9bcb8c5f999e722dba078ac3586639dee262e5cedb657e
