[INFO] cloning repository https://github.com/jacobvm04/rcalc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jacobvm04/rcalc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjacobvm04%2Frcalc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjacobvm04%2Frcalc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d841daa7449f623086837760d8baa3977d0b6e86
[INFO] checking jacobvm04/rcalc against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjacobvm04%2Frcalc" "/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/jacobvm04/rcalc
[INFO] finished tweaking git repo https://github.com/jacobvm04/rcalc
[INFO] tweaked toml for git repo https://github.com/jacobvm04/rcalc written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jacobvm04/rcalc 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/jacobvm04/rcalc 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 wasmtime-types v21.0.1
[INFO] [stderr]   Downloaded wasmtime-winch v21.0.1
[INFO] [stderr]   Downloaded wasm-encoder v0.208.1
[INFO] [stderr]   Downloaded wat v1.208.1
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[INFO] [stderr]   Downloaded wasmtime-component-util v21.0.1
[INFO] [stderr]   Downloaded cranelift-codegen-shared v0.108.1
[INFO] [stderr]   Downloaded cranelift-control v0.108.1
[INFO] [stderr]   Downloaded redox_users v0.4.5
[INFO] [stderr]   Downloaded wasmtime-slab v21.0.1
[INFO] [stderr]   Downloaded cranelift-native v0.108.1
[INFO] [stderr]   Downloaded slice-group-by v0.3.1
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[INFO] [stderr]   Downloaded cranelift-entity v0.108.1
[INFO] [stderr]   Downloaded predicates v3.1.0
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[INFO] [stderr]   Downloaded fxprof-processed-profile v0.6.0
[INFO] [stderr]   Downloaded wasmprinter v0.207.0
[INFO] [stderr]   Downloaded zerocopy-derive v0.7.34
[INFO] [stderr]   Downloaded toml v0.8.13
[INFO] [stderr]   Downloaded cranelift-wasm v0.108.1
[INFO] [stderr]   Downloaded wasm-encoder v0.207.0
[INFO] [stderr]   Downloaded cc v1.0.98
[INFO] [stderr]   Downloaded cranelift-codegen-meta v0.108.1
[INFO] [stderr]   Downloaded wit-parser v0.207.0
[INFO] [stderr]   Downloaded wasmtime-cranelift v21.0.1
[INFO] [stderr]   Downloaded toml_edit v0.22.13
[INFO] [stderr]   Downloaded chumsky v1.0.0-alpha.7
[INFO] [stderr]   Downloaded proptest v1.4.0
[INFO] [stderr]   Downloaded winnow v0.6.8
[INFO] [stderr]   Downloaded regalloc2 v0.9.3
[INFO] [stderr]   Downloaded syn v2.0.65
[INFO] [stderr]   Downloaded zerocopy v0.7.34
[INFO] [stderr]   Downloaded object v0.33.0
[INFO] [stderr]   Downloaded wasmparser v0.207.0
[INFO] [stderr]   Downloaded bstr v1.9.1
[INFO] [stderr]   Downloaded wasmtime-environ v21.0.1
[INFO] [stderr]   Downloaded wasmtime v21.0.1
[INFO] [stderr]   Downloaded cranelift-isle v0.108.1
[INFO] [stderr]   Downloaded cpp_demangle v0.4.3
[INFO] [stderr]   Downloaded winch-codegen v0.19.1
[INFO] [stderr]   Downloaded wasmtime-component-macro v21.0.1
[INFO] [stderr]   Downloaded wasmtime-fiber v21.0.1
[INFO] [stderr]   Downloaded cranelift-bforest v0.108.1
[INFO] [stderr]   Downloaded wasmtime-wit-bindgen v21.0.1
[INFO] [stderr]   Downloaded cranelift-codegen v0.108.1
[INFO] [stderr]   Downloaded wasmtime-versioned-export-macros v21.0.1
[INFO] [stderr]   Downloaded cranelift-frontend v0.108.1
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[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] 6ac69326487dc4f5ae78c6754ef0fd2bed8f30bd18c0e2cb9660417c2f6f8648
[INFO] running `Command { std: "docker" "start" "-a" "6ac69326487dc4f5ae78c6754ef0fd2bed8f30bd18c0e2cb9660417c2f6f8648", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ac69326487dc4f5ae78c6754ef0fd2bed8f30bd18c0e2cb9660417c2f6f8648", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ac69326487dc4f5ae78c6754ef0fd2bed8f30bd18c0e2cb9660417c2f6f8648", kill_on_drop: false }`
[INFO] [stdout] 6ac69326487dc4f5ae78c6754ef0fd2bed8f30bd18c0e2cb9660417c2f6f8648
[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] efdb58b43e4052c30e2d9eb32c1aad1a098b02b38a120926beab6912472a8bd9
[INFO] running `Command { std: "docker" "start" "-a" "efdb58b43e4052c30e2d9eb32c1aad1a098b02b38a120926beab6912472a8bd9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.83
[INFO] [stderr]    Compiling serde v1.0.202
[INFO] [stderr]     Checking zerocopy v0.7.34
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking allocator-api2 v0.2.18
[INFO] [stderr]     Checking bitflags v2.5.0
[INFO] [stderr]    Compiling semver v1.0.23
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]    Compiling rustix v0.38.34
[INFO] [stderr]    Compiling cranelift-isle v0.108.1
[INFO] [stderr]     Checking linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling target-lexicon v0.12.14
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.108.1
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.108.1
[INFO] [stderr]    Compiling serde_json v1.0.117
[INFO] [stderr]     Checking ahash v0.8.11
[INFO] [stderr]     Checking bumpalo v3.16.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking leb128 v0.2.5
[INFO] [stderr]     Checking arbitrary v1.3.2
[INFO] [stderr]     Checking slice-group-by v0.3.1
[INFO] [stderr]     Checking crc32fast v1.4.2
[INFO] [stderr]    Compiling zstd-safe v7.1.0
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking hashbrown v0.13.2
[INFO] [stderr]     Checking cobs v0.2.3
[INFO] [stderr]     Checking embedded-io v0.4.0
[INFO] [stderr]    Compiling cpp_demangle v0.4.3
[INFO] [stderr]     Checking either v1.12.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling id-arena v2.2.1
[INFO] [stderr]     Checking regex-syntax v0.8.3
[INFO] [stderr]     Checking unicode-width v0.1.12
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]     Checking winnow v0.6.8
[INFO] [stderr]    Compiling jobserver v0.1.31
[INFO] [stderr]     Checking itertools v0.12.1
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking wasm-encoder v0.207.0
[INFO] [stderr]     Checking wasm-encoder v0.208.1
[INFO] [stderr]    Compiling syn v2.0.65
[INFO] [stderr]     Checking cranelift-control v0.108.1
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling cc v1.0.98
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking wasmtime-component-util v21.0.1
[INFO] [stderr]    Compiling wasmtime-component-macro v21.0.1
[INFO] [stderr]    Compiling wasmtime-cache v21.0.1
[INFO] [stderr]     Checking uuid v1.8.0
[INFO] [stderr]     Checking rustc-demangle v0.1.24
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking debugid v0.8.0
[INFO] [stderr]     Checking directories-next v2.0.0
[INFO] [stderr]     Checking wasmtime-asm-macros v21.0.1
[INFO] [stderr]    Compiling chumsky v1.0.0-alpha.7
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking wast v208.0.1
[INFO] [stderr]     Checking wasmtime-jit-icache-coherence v21.0.1
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking sptr v0.3.2
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking fastrand v2.1.0
[INFO] [stderr]     Checking predicates-core v1.0.6
[INFO] [stderr]     Checking wasmtime-slab v21.0.1
[INFO] [stderr]     Checking ariadne v0.4.1
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking termtree v0.4.1
[INFO] [stderr]     Checking anstyle v1.0.7
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]    Compiling assert_cmd v2.0.14
[INFO] [stderr]     Checking predicates-tree v1.0.9
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking unarray v0.1.4
[INFO] [stderr]    Compiling zstd-sys v2.0.10+zstd.1.5.6
[INFO] [stderr]    Compiling psm v0.1.21
[INFO] [stderr]    Compiling ittapi-sys v0.4.0
[INFO] [stderr]    Compiling stacker v0.1.15
[INFO] [stderr]    Compiling cranelift-codegen v0.108.1
[INFO] [stderr]     Checking regex-automata v0.4.6
[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/chumsky-1.0.0-alpha.7/src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     feature(never_type, fn_traits, tuple_trait, unboxed_closures)
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking ittapi v0.4.0
[INFO] [stderr]    Compiling indexmap v2.2.6
[INFO] [stderr]     Checking memfd v0.6.4
[INFO] [stderr]     Checking tempfile v3.10.1
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking proptest v1.4.0
[INFO] [stderr]    Compiling wasmparser v0.207.0
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking bstr v1.9.1
[INFO] [stderr]     Checking predicates v3.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.202
[INFO] [stderr]    Compiling wasmtime-versioned-export-macros v21.0.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.61
[INFO] [stderr]    Compiling async-trait v0.1.80
[INFO] [stderr]    Compiling wasmtime-fiber v21.0.1
[INFO] [stderr]    Compiling wasmtime v21.0.1
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chumsky` (lib) due to 1 previous error; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "efdb58b43e4052c30e2d9eb32c1aad1a098b02b38a120926beab6912472a8bd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efdb58b43e4052c30e2d9eb32c1aad1a098b02b38a120926beab6912472a8bd9", kill_on_drop: false }`
[INFO] [stdout] efdb58b43e4052c30e2d9eb32c1aad1a098b02b38a120926beab6912472a8bd9