[INFO] cloning repository https://github.com/nick/tst_por
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nick/tst_por" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnick%2Ftst_por", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnick%2Ftst_por'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 306e0568d90d8a39fe6f299982067138b4102658
[INFO] checking nick/tst_por against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnick%2Ftst_por" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/nick/tst_por
[INFO] finished tweaking git repo https://github.com/nick/tst_por
[INFO] tweaked toml for git repo https://github.com/nick/tst_por written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nick/tst_por 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/nick/tst_por 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded keccak-hash v0.8.0
[INFO] [stderr]   Downloaded primitive-types v0.10.1
[INFO] [stderr]   Downloaded plonky2_maybe_rayon v1.0.0
[INFO] [stderr]   Downloaded unroll v0.1.5
[INFO] [stderr]   Downloaded plonky2_por v1.4.2
[INFO] [stderr]   Downloaded plonky2_util v1.0.0
[INFO] [stderr]   Downloaded daemonize v0.5.0
[INFO] [stderr]   Downloaded plonky2_field v1.0.0
[INFO] [stderr]   Downloaded jemallocator v0.5.4
[INFO] [stderr]   Downloaded bigdecimal v0.4.8
[INFO] [stderr]   Downloaded jiff-static v0.2.15
[INFO] [stderr]   Downloaded plonky2 v1.1.0
[INFO] [stderr]   Downloaded jiff v0.2.15
[INFO] [stderr]   Downloaded zstd-sys v2.0.15+zstd.1.5.7
[INFO] [stderr]   Downloaded jemalloc-sys v0.5.4+5.3.0-patched
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 2ca0102f5125a4200d14e3cca04b033db31d8b5c4109e18d3e0bc5be516f2f8e
[INFO] running `Command { std: "docker" "start" "-a" "2ca0102f5125a4200d14e3cca04b033db31d8b5c4109e18d3e0bc5be516f2f8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ca0102f5125a4200d14e3cca04b033db31d8b5c4109e18d3e0bc5be516f2f8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ca0102f5125a4200d14e3cca04b033db31d8b5c4109e18d3e0bc5be516f2f8e", kill_on_drop: false }`
[INFO] [stdout] 2ca0102f5125a4200d14e3cca04b033db31d8b5c4109e18d3e0bc5be516f2f8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 8a2dec737ae04defad9c66233ca2c941d286995f8fb6be6797f98ba37f0b5a57
[INFO] running `Command { std: "docker" "start" "-a" "8a2dec737ae04defad9c66233ca2c941d286995f8fb6be6797f98ba37f0b5a57", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling zerocopy v0.8.26
[INFO] [stderr]    Compiling crunchy v0.2.4
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking anstyle-query v1.1.3
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking anstyle v1.0.11
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking anstream v0.6.19
[INFO] [stderr]     Checking uint v0.9.5
[INFO] [stderr]     Checking getrandom v0.3.3
[INFO] [stderr]     Checking fixed-hash v0.7.0
[INFO] [stderr]    Compiling zstd-safe v7.2.4
[INFO] [stderr]    Compiling jobserver v0.1.33
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking primitive-types v0.10.1
[INFO] [stderr]    Compiling const-random-macro v0.1.16
[INFO] [stderr]    Compiling cc v1.2.29
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking const-random v0.1.18
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]    Compiling bigdecimal v0.4.8
[INFO] [stderr]     Checking plonky2_util v1.0.0
[INFO] [stderr]     Checking clap_lex v0.7.5
[INFO] [stderr]     Checking clap_builder v4.5.41
[INFO] [stderr]     Checking keccak-hash v0.8.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking plonky2_maybe_rayon v1.0.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.5
[INFO] [stderr]     Checking jiff v0.2.15
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking env_filter v0.1.3
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]    Compiling doctest-file v1.0.0
[INFO] [stderr]    Compiling zstd-sys v2.0.15+zstd.1.5.7
[INFO] [stderr]    Compiling jemalloc-sys v0.5.4+5.3.0-patched
[INFO] [stderr]     Checking interprocess v2.2.3
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking rand v0.9.1
[INFO] [stderr]     Checking chrono v0.4.41
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]     Checking signal-hook v0.3.18
[INFO] [stderr]     Checking daemonize v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling clap_derive v4.5.41
[INFO] [stderr]    Compiling unroll v0.1.5
[INFO] [stderr]     Checking env_logger v0.11.8
[INFO] [stderr]     Checking clap v4.5.41
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking zstd v0.13.3
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking plonky2_field v1.0.0
[INFO] [stderr]     Checking serde_json v1.0.140
[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/plonky2_field-1.0.0/src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(specialization)]
[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 `plonky2_field` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "8a2dec737ae04defad9c66233ca2c941d286995f8fb6be6797f98ba37f0b5a57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a2dec737ae04defad9c66233ca2c941d286995f8fb6be6797f98ba37f0b5a57", kill_on_drop: false }`
[INFO] [stdout] 8a2dec737ae04defad9c66233ca2c941d286995f8fb6be6797f98ba37f0b5a57