[INFO] fetching crate oberon 2.2.1...
[INFO] checking oberon-2.2.1 against master#c2f2db79ca3024f68d22b45aa22b570775c2c4ad for pr-124157
[INFO] extracting crate oberon 2.2.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate oberon 2.2.1 on toolchain c2f2db79ca3024f68d22b45aa22b570775c2c4ad
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate oberon 2.2.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate oberon 2.2.1
[INFO] tweaked toml for crates.io crate oberon 2.2.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate oberon 2.2.1 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" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pyo3-macros v0.19.0
[INFO] [stderr]   Downloaded target-lexicon v0.12.7
[INFO] [stderr]   Downloaded pyo3-ffi v0.19.0
[INFO] [stderr]   Downloaded pyo3-build-config v0.19.0
[INFO] [stderr]   Downloaded serde_bare v0.5.0
[INFO] [stderr]   Downloaded skeptic v0.13.7
[INFO] [stderr]   Downloaded indoc v1.0.9
[INFO] [stderr]   Downloaded random_tester v0.1.0
[INFO] [stderr]   Downloaded camino v1.1.4
[INFO] [stderr]   Downloaded cargo_metadata v0.14.2
[INFO] [stderr]   Downloaded elliptic-curve v0.13.5
[INFO] [stderr]   Downloaded crypto-bigint v0.5.2
[INFO] [stderr]   Downloaded bitflags v2.3.1
[INFO] [stderr]   Downloaded blst v0.3.10
[INFO] [stderr]   Downloaded pyo3 v0.19.0
[INFO] [stderr]   Downloaded ext-php-rs v0.10.1
[INFO] [stderr]   Downloaded prettyplease v0.2.6
[INFO] [stderr]   Downloaded ext-php-rs-derive v0.10.0
[INFO] [stderr]   Downloaded bytecount v0.6.3
[INFO] [stderr]   Downloaded ffi-support v0.4.4
[INFO] [stderr]   Downloaded pyo3-macros-backend v0.19.0
[INFO] [stderr]   Downloaded kmeans v0.2.0
[INFO] [stderr]   Downloaded blstrs_plus v0.8.4
[INFO] [stderr]   Downloaded bls12_381_plus v0.8.4
[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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6b9bf2a2f0c8609079d0a85ff16728c3f94c642efc3ac4f916136c6661b93bb9
[INFO] running `Command { std: "docker" "start" "-a" "6b9bf2a2f0c8609079d0a85ff16728c3f94c642efc3ac4f916136c6661b93bb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b9bf2a2f0c8609079d0a85ff16728c3f94c642efc3ac4f916136c6661b93bb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b9bf2a2f0c8609079d0a85ff16728c3f94c642efc3ac4f916136c6661b93bb9", kill_on_drop: false }`
[INFO] [stdout] 6b9bf2a2f0c8609079d0a85ff16728c3f94c642efc3ac4f916136c6661b93bb9
[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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e19f10d787402b88e7e6f38e0eec4dffbfdc273c962f268d89d7802acfa61619
[INFO] running `Command { std: "docker" "start" "-a" "e19f10d787402b88e7e6f38e0eec4dffbfdc273c962f268d89d7802acfa61619", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.145
[INFO] [stderr]    Compiling proc-macro2 v1.0.59
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]     Checking funty v2.0.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling num-bigint v0.3.3
[INFO] [stderr]     Checking wyz v0.5.1
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]    Compiling libm v0.1.4
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]    Compiling rustix v0.37.19
[INFO] [stderr]     Checking plotters-backend v0.3.4
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.59/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]     Checking base16ct v0.2.0
[INFO] [stderr]     Checking anstyle v1.0.0
[INFO] [stderr]    Compiling packed_simd_2 v0.3.8
[INFO] [stderr]     Checking ciborium-io v0.2.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]     Checking linux-raw-sys v0.3.8
[INFO] [stderr]     Checking clap_lex v0.5.0
[INFO] [stderr]     Checking plotters-svg v0.3.3
[INFO] [stderr]     Checking ciborium-ll v0.2.1
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "e19f10d787402b88e7e6f38e0eec4dffbfdc273c962f268d89d7802acfa61619", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e19f10d787402b88e7e6f38e0eec4dffbfdc273c962f268d89d7802acfa61619", kill_on_drop: false }`
[INFO] [stdout] e19f10d787402b88e7e6f38e0eec4dffbfdc273c962f268d89d7802acfa61619
