[INFO] fetching crate nargo-server 0.0.0...
[INFO] checking nargo-server-0.0.0 against 1.95.0 for pr-155915
[INFO] extracting crate nargo-server 0.0.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate nargo-server 0.0.0
[INFO] finished tweaking crates.io crate nargo-server 0.0.0
[INFO] tweaked toml for crates.io crate nargo-server 0.0.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate nargo-server 0.0.0 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 nargo-server 0.0.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] a43cc73fb747fc403d5d1d8714c8d3c26499b21dda006447dc06fb85429b6141
[INFO] running `Command { std: "docker" "start" "-a" "a43cc73fb747fc403d5d1d8714c8d3c26499b21dda006447dc06fb85429b6141", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a43cc73fb747fc403d5d1d8714c8d3c26499b21dda006447dc06fb85429b6141", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a43cc73fb747fc403d5d1d8714c8d3c26499b21dda006447dc06fb85429b6141", kill_on_drop: false }`
[INFO] [stdout] a43cc73fb747fc403d5d1d8714c8d3c26499b21dda006447dc06fb85429b6141
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 2865b74ad30dfb3b23e7bda2c350152ede36c8f1411c30078e1ca13455c2e924
[INFO] running `Command { std: "docker" "start" "-a" "2865b74ad30dfb3b23e7bda2c350152ede36c8f1411c30078e1ca13455c2e924", kill_on_drop: false }`
[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]    Compiling zerovec-derive v0.11.2
[INFO] [stderr]     Checking serde_json v1.0.149
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking tracing v0.1.44
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.8.1
[INFO] [stderr]     Checking getrandom v0.4.2
[INFO] [stderr]     Checking rand v0.9.2
[INFO] [stderr]     Checking console v0.15.11
[INFO] [stderr]     Checking shell-words v1.1.1
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking net2 v0.2.39
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]    Compiling oak-macros v0.0.7
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]     Checking dashmap v6.1.0
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking tempfile v3.26.0
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking winnow v0.7.14
[INFO] [stderr]     Checking toml_datetime v1.0.0+spec-1.1.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking tokio v1.50.0
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking dialoguer v0.11.0
[INFO] [stderr]     Checking serde_spanned v1.0.4
[INFO] [stderr]    Compiling unicase v2.9.0
[INFO] [stderr]     Checking toml_writer v1.0.6+spec-1.1.0
[INFO] [stderr]     Checking sync_wrapper v1.0.2
[INFO] [stderr]     Checking twox-hash v2.1.2
[INFO] [stderr]    Compiling mime_guess v2.0.5
[INFO] [stderr]     Checking axum-core v0.5.6
[INFO] [stderr]     Checking num_cpus v1.17.0
[INFO] [stderr]     Checking http-range-header v0.4.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking triomphe v0.1.15
[INFO] [stderr]     Checking nargo-types v0.0.0
[INFO] [stderr]     Checking oak-source-map v0.0.7
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking oak-core v0.0.7
[INFO] [stderr]     Checking zerofrom v0.1.6
[INFO] [stderr]     Checking mio-extras v2.0.6
[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/oak-core-0.0.7/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(allocator_api)] // Required for custom arena allocation and manual memory management
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking yoke v0.8.1
[INFO] [stderr]     Checking zerovec v0.11.5
[INFO] [stderr]     Checking zerotrie v0.2.3
[INFO] [stderr]     Checking toml_parser v1.0.9+spec-1.1.0
[INFO] [stderr]     Checking toml v1.0.4+spec-1.1.0
[INFO] [stderr]     Checking nargo-ir v0.0.0
[INFO] [stderr]     Checking tinystr v0.8.2
[INFO] [stderr]     Checking potential_utf v0.1.4
[INFO] [stderr]     Checking icu_collections v2.1.1
[INFO] [stderr]     Checking icu_locale_core v2.1.1
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `oak-core` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "2865b74ad30dfb3b23e7bda2c350152ede36c8f1411c30078e1ca13455c2e924", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2865b74ad30dfb3b23e7bda2c350152ede36c8f1411c30078e1ca13455c2e924", kill_on_drop: false }`
[INFO] [stdout] 2865b74ad30dfb3b23e7bda2c350152ede36c8f1411c30078e1ca13455c2e924