[INFO] fetching crate paxcii 0.5.1...
[INFO] checking paxcii-0.5.1 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate paxcii 0.5.1 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate paxcii 0.5.1
[INFO] finished tweaking crates.io crate paxcii 0.5.1
[INFO] tweaked toml for crates.io crate paxcii 0.5.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate paxcii 0.5.1 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate paxcii 0.5.1 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded symphonia v0.5.2
[INFO] [stderr]   Downloaded symphonia-format-mkv v0.5.2
[INFO] [stderr]   Downloaded rodio v0.16.0
[INFO] [stderr]   Downloaded symphonia-utils-xiph v0.5.2
[INFO] [stderr]   Downloaded symphonia-format-isomp4 v0.5.2
[INFO] [stderr]   Downloaded symphonia-metadata v0.5.2
[INFO] [stderr]   Downloaded symphonia-format-wav v0.5.2
[INFO] [stderr]   Downloaded symphonia-format-ogg v0.5.2
[INFO] [stderr]   Downloaded symphonia-codec-pcm v0.5.2
[INFO] [stderr]   Downloaded symphonia-codec-adpcm v0.5.2
[INFO] [stderr]   Downloaded nokhwa-bindings-macos v0.2.0
[INFO] [stderr]   Downloaded symphonia-codec-vorbis v0.5.2
[INFO] [stderr]   Downloaded rgb v0.8.34
[INFO] [stderr]   Downloaded nokhwa-core v0.1.0
[INFO] [stderr]   Downloaded nokhwa-bindings-windows v0.4.0
[INFO] [stderr]   Downloaded symphonia-bundle-flac v0.5.2
[INFO] [stderr]   Downloaded num_enum v0.5.9
[INFO] [stderr]   Downloaded core-media-sys v0.1.2
[INFO] [stderr]   Downloaded dunce v1.0.3
[INFO] [stderr]   Downloaded mozjpeg v0.9.4
[INFO] [stderr]   Downloaded toml_datetime v0.5.1
[INFO] [stderr]   Downloaded nokhwa-bindings-linux v0.1.0
[INFO] [stderr]   Downloaded proc-macro-crate v1.3.0
[INFO] [stderr]   Downloaded num_enum_derive v0.5.9
[INFO] [stderr]   Downloaded symphonia-codec-aac v0.5.2
[INFO] [stderr]   Downloaded symphonia-core v0.5.2
[INFO] [stderr]   Downloaded metal v0.18.0
[INFO] [stderr]   Downloaded wgpu-types v0.14.1
[INFO] [stderr]   Downloaded nokhwa v0.10.3
[INFO] [stderr]   Downloaded symphonia-bundle-mp3 v0.5.2
[INFO] [stderr]   Downloaded toml_edit v0.18.1
[INFO] [stderr]   Downloaded cpal v0.14.2
[INFO] [stderr]   Downloaded wgpu v0.14.2
[INFO] [stderr]   Downloaded nom8 v0.2.0
[INFO] [stderr]   Downloaded clap v4.1.4
[INFO] [stderr]   Downloaded wgpu-hal v0.14.1
[INFO] [stderr]   Downloaded wgpu-core v0.14.2
[INFO] [stderr]   Downloaded naga v0.10.0
[INFO] [stderr]   Downloaded mozjpeg-sys v1.0.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f137c1824efb52c50b42cb2bf0c52227597e11682149e67a59549975d08da6e2
[INFO] running `Command { std: "docker" "start" "-a" "f137c1824efb52c50b42cb2bf0c52227597e11682149e67a59549975d08da6e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f137c1824efb52c50b42cb2bf0c52227597e11682149e67a59549975d08da6e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f137c1824efb52c50b42cb2bf0c52227597e11682149e67a59549975d08da6e2", kill_on_drop: false }`
[INFO] [stdout] f137c1824efb52c50b42cb2bf0c52227597e11682149e67a59549975d08da6e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b4af039b2a9ab90fd40f53ca094fd2a2431daa056d25f9b9987fb61c7b51f5d8
[INFO] running `Command { std: "docker" "start" "-a" "b4af039b2a9ab90fd40f53ca094fd2a2431daa056d25f9b9987fb61c7b51f5d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking bytemuck v1.13.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]     Checking symphonia-core v0.5.2
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.50/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]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.13
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b4af039b2a9ab90fd40f53ca094fd2a2431daa056d25f9b9987fb61c7b51f5d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4af039b2a9ab90fd40f53ca094fd2a2431daa056d25f9b9987fb61c7b51f5d8", kill_on_drop: false }`
[INFO] [stdout] b4af039b2a9ab90fd40f53ca094fd2a2431daa056d25f9b9987fb61c7b51f5d8