[INFO] fetching crate as2c 0.1.3...
[INFO] checking as2c-0.1.3 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate as2c 0.1.3 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate as2c 0.1.3
[INFO] finished tweaking crates.io crate as2c 0.1.3
[INFO] tweaked toml for crates.io crate as2c 0.1.3 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate as2c 0.1.3 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate as2c 0.1.3 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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "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]  Downloading crates ...
[INFO] [stderr]   Downloaded rust_hawktracer_normal_macro v0.4.1
[INFO] [stderr]   Downloaded rust_hawktracer v0.7.0
[INFO] [stderr]   Downloaded yuvxyb v0.3.0
[INFO] [stderr]   Downloaded rust_hawktracer_proc_macro v0.4.1
[INFO] [stderr]   Downloaded v_frame v0.3.0
[INFO] [stderr]   Downloaded progress_bar v1.0.3
[INFO] [stderr]   Downloaded as-slice v0.2.1
[INFO] [stderr]   Downloaded byte-slice-cast v1.2.1
[INFO] [stderr]   Downloaded wide v0.7.5
[INFO] [stderr]   Downloaded clap_derive v4.0.18
[INFO] [stderr]   Downloaded parking_lot_core v0.9.4
[INFO] [stderr]   Downloaded safe_arch v0.6.0
[INFO] [stderr]   Downloaded anyhow v1.0.66
[INFO] [stderr]   Downloaded av-data v0.4.1
[INFO] [stderr]   Downloaded aligned v0.4.1
[INFO] [stderr]   Downloaded simba v0.7.2
[INFO] [stderr]   Downloaded nalgebra v0.31.2
[INFO] [stderr]   Downloaded nalgebra-macros v0.1.0
[INFO] [stderr]   Downloaded clap v4.0.18
[INFO] [stderr]   Downloaded ssimulacra2 v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f1061c0f2ca4bedac7cc13f247af3bb2a06512cbac3c553e5c52d8b57fd14eb3
[INFO] running `Command { std: "docker" "start" "-a" "f1061c0f2ca4bedac7cc13f247af3bb2a06512cbac3c553e5c52d8b57fd14eb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f1061c0f2ca4bedac7cc13f247af3bb2a06512cbac3c553e5c52d8b57fd14eb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1061c0f2ca4bedac7cc13f247af3bb2a06512cbac3c553e5c52d8b57fd14eb3", kill_on_drop: false }`
[INFO] [stdout] f1061c0f2ca4bedac7cc13f247af3bb2a06512cbac3c553e5c52d8b57fd14eb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec0b6eb1003dbae1c4e9483cbcdb233c84373902db5c76280ce7cda8264936fc
[INFO] running `Command { std: "docker" "start" "-a" "ec0b6eb1003dbae1c4e9483cbcdb233c84373902db5c76280ce7cda8264936fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking futures-sink v0.3.25
[INFO] [stderr]     Checking bytemuck v1.12.1
[INFO] [stderr]     Checking num-traits v0.2.15
[INFO] [stderr]     Checking crossbeam-epoch v0.9.11
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]     Checking bytes v1.2.1
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]    Compiling anyhow v1.0.66
[INFO] [stderr]     Checking rust_hawktracer_normal_macro v0.4.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.4
[INFO] [stderr]    Compiling rust_hawktracer_proc_macro v0.4.1
[INFO] [stderr]    Compiling paste v1.0.9
[INFO] [stderr]     Checking crossbeam-deque v0.8.2
[INFO] [stderr]     Checking safe_arch v0.6.0
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]     Checking spin v0.9.4
[INFO] [stderr]     Checking weezl v0.1.7
[INFO] [stderr]     Checking futures-io v0.3.25
[INFO] [stderr]    Compiling noop_proc_macro v0.3.0
[INFO] [stderr]     Checking rust_hawktracer v0.7.0
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]     Checking byte-slice-cast v1.2.1
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.47/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 miniz_oxide v0.6.2
[INFO] [stderr]     Checking as-slice v0.2.1
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]     Checking lebe v0.5.2
[INFO] [stderr]     Checking os_str_bytes v6.3.0
[INFO] [stderr]     Checking half v2.1.0
[INFO] [stderr]     Checking bit_field v0.10.1
[INFO] [stderr]     Checking aligned v0.4.1
[INFO] [stderr]     Checking png v0.17.6
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking progress_bar v1.0.3
[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 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "ec0b6eb1003dbae1c4e9483cbcdb233c84373902db5c76280ce7cda8264936fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec0b6eb1003dbae1c4e9483cbcdb233c84373902db5c76280ce7cda8264936fc", kill_on_drop: false }`
[INFO] [stdout] ec0b6eb1003dbae1c4e9483cbcdb233c84373902db5c76280ce7cda8264936fc