[INFO] cloning repository https://github.com/khoda81/rust-2048-solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/khoda81/rust-2048-solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhoda81%2Frust-2048-solver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhoda81%2Frust-2048-solver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 79062eab48d036284b4d785091dc9c67a8990c51
[INFO] checking khoda81/rust-2048-solver against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhoda81%2Frust-2048-solver" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-2-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/khoda81/rust-2048-solver
[INFO] finished tweaking git repo https://github.com/khoda81/rust-2048-solver
[INFO] tweaked toml for git repo https://github.com/khoda81/rust-2048-solver written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/khoda81/rust-2048-solver 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 git repo https://github.com/khoda81/rust-2048-solver 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 clap v4.5.55
[INFO] [stderr]   Downloaded zerocopy-derive v0.8.34
[INFO] [stderr]   Downloaded clap_builder v4.5.55
[INFO] [stderr]   Downloaded zerocopy v0.8.34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 0ffde47c60dfb9af15fa4572b6981b2f8b8a231d40f4ff753d4fc1fa88bfcd4a
[INFO] running `Command { std: "docker" "start" "-a" "0ffde47c60dfb9af15fa4572b6981b2f8b8a231d40f4ff753d4fc1fa88bfcd4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ffde47c60dfb9af15fa4572b6981b2f8b8a231d40f4ff753d4fc1fa88bfcd4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ffde47c60dfb9af15fa4572b6981b2f8b8a231d40f4ff753d4fc1fa88bfcd4a", kill_on_drop: false }`
[INFO] [stdout] 0ffde47c60dfb9af15fa4572b6981b2f8b8a231d40f4ff753d4fc1fa88bfcd4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 3e253b062f26e2c1d1444245a56ad2df9d86184c1a90e5ff45f3f800180c70a1
[INFO] running `Command { std: "docker" "start" "-a" "3e253b062f26e2c1d1444245a56ad2df9d86184c1a90e5ff45f3f800180c70a1", kill_on_drop: false }`
[INFO] [stderr]    Compiling zerocopy v0.8.34
[INFO] [stderr]     Checking memchr v2.7.6
[INFO] [stderr]     Checking regex-syntax v0.8.8
[INFO] [stderr]     Checking anstyle v1.0.13
[INFO] [stderr]    Compiling zmij v1.0.17
[INFO] [stderr]    Compiling libc v0.2.180
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling nix v0.30.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking utf8parse v0.2.2
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]     Checking foldhash v0.2.0
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]     Checking colorchoice v1.0.4
[INFO] [stderr]     Checking anstyle-query v1.1.5
[INFO] [stderr]     Checking bitflags v2.10.0
[INFO] [stderr]     Checking anstyle-parse v0.2.7
[INFO] [stderr]     Checking is_terminal_polyfill v1.70.2
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling thiserror v2.0.18
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]    Compiling alloca v0.4.0
[INFO] [stderr]     Checking jiff v0.2.18
[INFO] [stderr]     Checking hashbrown v0.16.1
[INFO] [stderr]     Checking itoa v1.0.17
[INFO] [stderr]     Checking plotters-backend v0.3.7
[INFO] [stderr]     Checking clap_lex v0.7.7
[INFO] [stderr]     Checking anstream v0.6.21
[INFO] [stderr]     Checking ciborium-io v0.2.2
[INFO] [stderr]     Checking clap_builder v4.5.55
[INFO] [stderr]     Checking itertools v0.14.0
[INFO] [stderr]     Checking plotters-svg v0.3.7
[INFO] [stderr]     Checking aho-corasick v1.1.4
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking anes v0.1.6
[INFO] [stderr]     Checking oorandom v11.1.5
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking criterion-plot v0.8.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.6
[INFO] [stderr]     Checking lru v0.16.3
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking plotters v0.3.7
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking regex-automata v0.4.13
[INFO] [stderr]     Checking rayon v1.11.0
[INFO] [stderr]     Checking page_size v0.6.0
[INFO] [stderr]     Checking rand_core v0.9.5
[INFO] [stderr]     Checking ctrlc v3.5.1
[INFO] [stderr]     Checking clap v4.5.55
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]    Compiling zerocopy-derive v0.8.34
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]     Checking regex v1.12.2
[INFO] [stderr]     Checking env_filter v0.1.4
[INFO] [stderr]     Checking env_logger v0.11.8
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking half v2.7.1
[INFO] [stderr]     Checking ciborium-ll v0.2.2
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking rand v0.9.2
[INFO] [stderr]     Checking criterion v0.8.1
[INFO] [stderr]     Checking rust-2048-solver v0.1.0 (/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(portable_simd)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[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-2048-solver` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "3e253b062f26e2c1d1444245a56ad2df9d86184c1a90e5ff45f3f800180c70a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e253b062f26e2c1d1444245a56ad2df9d86184c1a90e5ff45f3f800180c70a1", kill_on_drop: false }`
[INFO] [stdout] 3e253b062f26e2c1d1444245a56ad2df9d86184c1a90e5ff45f3f800180c70a1
