[INFO] fetching crate hax-rust-engine 0.3.6...
[INFO] checking hax-rust-engine-0.3.6 against 1.95.0 for pr-155915
[INFO] extracting crate hax-rust-engine 0.3.6 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate hax-rust-engine 0.3.6
[INFO] finished tweaking crates.io crate hax-rust-engine 0.3.6
[INFO] tweaked toml for crates.io crate hax-rust-engine 0.3.6 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate hax-rust-engine 0.3.6 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 hax-rust-engine 0.3.6 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 stacker v0.1.21
[INFO] [stderr]   Downloaded serde_stacker v0.1.12
[INFO] [stderr]   Downloaded extension-traits v1.0.1
[INFO] [stderr]   Downloaded hax-frontend-exporter-options v0.3.6
[INFO] [stderr]   Downloaded hax-types v0.3.6
[INFO] [stderr]   Downloaded pretty v0.12.4
[INFO] [stderr]   Downloaded serde-brief v0.1.1
[INFO] [stderr]   Downloaded hax-lib-macros-types v0.3.6
[INFO] [stderr]   Downloaded derive_generic_visitor v0.3.0
[INFO] [stderr]   Downloaded annotate-snippets v0.11.5
[INFO] [stderr]   Downloaded ext-trait-proc_macros v1.0.1
[INFO] [stderr]   Downloaded ext-trait v1.0.1
[INFO] [stderr]   Downloaded derive_generic_visitor_macros v0.3.0
[INFO] [stderr]   Downloaded hax-lib-macros v0.3.6
[INFO] [stderr]   Downloaded hax-frontend-exporter v0.3.6
[INFO] [stderr]   Downloaded hax-rust-engine-macros v0.3.6
[INFO] [stderr]   Downloaded hax-adt-into v0.3.6
[INFO] [stderr]   Downloaded hax-lib v0.3.6
[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] aa76b275570349fb9abba872391e03c40a4d3e07b99c8db3e805be4b00e6bc82
[INFO] running `Command { std: "docker" "start" "-a" "aa76b275570349fb9abba872391e03c40a4d3e07b99c8db3e805be4b00e6bc82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa76b275570349fb9abba872391e03c40a4d3e07b99c8db3e805be4b00e6bc82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa76b275570349fb9abba872391e03c40a4d3e07b99c8db3e805be4b00e6bc82", kill_on_drop: false }`
[INFO] [stdout] aa76b275570349fb9abba872391e03c40a4d3e07b99c8db3e805be4b00e6bc82
[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] c6b9f2a138d7d5f3a589167ca479158f76f0b03122ec7cd1af6c39d8378a14c2
[INFO] running `Command { std: "docker" "start" "-a" "c6b9f2a138d7d5f3a589167ca479158f76f0b03122ec7cd1af6c39d8378a14c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling serde_json v1.0.143
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling itertools v0.11.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking clap_builder v4.5.46
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling camino v1.1.12
[INFO] [stderr]    Compiling hax-types v0.3.6
[INFO] [stderr]     Checking unicode-width v0.2.1
[INFO] [stderr]     Checking colored v2.2.0
[INFO] [stderr]     Checking uuid v1.18.0
[INFO] [stderr]     Checking path-clean v1.0.1
[INFO] [stderr]     Checking typed-arena v2.0.2
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling hax-lib v0.3.6
[INFO] [stderr]     Checking pretty v0.12.4
[INFO] [stderr]     Checking annotate-snippets v0.11.5
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]    Compiling cc v1.2.34
[INFO] [stderr]    Compiling zstd-sys v2.0.15+zstd.1.5.7
[INFO] [stderr]    Compiling psm v0.1.26
[INFO] [stderr]    Compiling stacker v0.1.21
[INFO] [stderr]    Compiling serde_derive_internals v0.29.1
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling ext-trait-proc_macros v1.0.1
[INFO] [stderr]    Compiling hax-adt-into v0.3.6
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling schemars_derive v0.8.22
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling miette-derive v7.6.0
[INFO] [stderr]    Compiling clap_derive v4.5.45
[INFO] [stderr]    Compiling hax-rust-engine-macros v0.3.6
[INFO] [stderr]    Compiling hax-lib-macros v0.3.6
[INFO] [stderr]     Checking ext-trait v1.0.1
[INFO] [stderr]     Checking extension-traits v1.0.1
[INFO] [stderr]     Checking miette v7.6.0
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]    Compiling darling_macro v0.20.11
[INFO] [stderr]     Checking clap v4.5.46
[INFO] [stderr]    Compiling zstd-safe v7.2.4
[INFO] [stderr]    Compiling darling v0.20.11
[INFO] [stderr]     Checking zstd v0.13.3
[INFO] [stderr]    Compiling derive_generic_visitor_macros v0.3.0
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking derive_generic_visitor v0.3.0
[INFO] [stderr]     Checking serde-brief v0.1.1
[INFO] [stderr]     Checking serde_stacker v0.1.12
[INFO] [stderr]     Checking schemars v0.8.22
[INFO] [stderr]     Checking hax-frontend-exporter-options v0.3.6
[INFO] [stderr]     Checking hax-lib-macros-types v0.3.6
[INFO] [stderr]     Checking hax-frontend-exporter v0.3.6
[INFO] [stderr]     Checking hax-rust-engine v0.3.6 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(rustc_private)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: extern crate `hax_lib` is unused in crate `hax_rust_engine`
[INFO] [stdout]   |
[INFO] [stdout]   = help: remove the dependency or add `use hax_lib as _;` to the crate root
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> src/lib.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     unused_crate_dependencies
[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:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(rustc_private)]
[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 `hax-rust-engine` (lib test) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hax-rust-engine` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "c6b9f2a138d7d5f3a589167ca479158f76f0b03122ec7cd1af6c39d8378a14c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6b9f2a138d7d5f3a589167ca479158f76f0b03122ec7cd1af6c39d8378a14c2", kill_on_drop: false }`
[INFO] [stdout] c6b9f2a138d7d5f3a589167ca479158f76f0b03122ec7cd1af6c39d8378a14c2
