[INFO] fetching crate mom-task 1.3.0...
[INFO] checking mom-task-1.3.0 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate mom-task 1.3.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate mom-task 1.3.0
[INFO] finished tweaking crates.io crate mom-task 1.3.0
[INFO] tweaked toml for crates.io crate mom-task 1.3.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mom-task 1.3.0 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mom-task 1.3.0 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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f3aae0371ee7cba2cb61f596ff2bafc91c5cbaa8f51562bc141ef244dad2a72c
[INFO] running `Command { std: "docker" "start" "-a" "f3aae0371ee7cba2cb61f596ff2bafc91c5cbaa8f51562bc141ef244dad2a72c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3aae0371ee7cba2cb61f596ff2bafc91c5cbaa8f51562bc141ef244dad2a72c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3aae0371ee7cba2cb61f596ff2bafc91c5cbaa8f51562bc141ef244dad2a72c", kill_on_drop: false }`
[INFO] [stdout] f3aae0371ee7cba2cb61f596ff2bafc91c5cbaa8f51562bc141ef244dad2a72c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa3cd91bbc8b2b1d9bc938ebc4f8cf2fa1e6fd2c2d056864ffc8adb7774302f8
[INFO] running `Command { std: "docker" "start" "-a" "aa3cd91bbc8b2b1d9bc938ebc4f8cf2fa1e6fd2c2d056864ffc8adb7774302f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling proc-macro2 v1.0.58
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.27
[INFO] [stderr]    Compiling uncased v0.9.9
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling io-lifetimes v1.0.10
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling rustix v0.37.19
[INFO] [stderr]     Checking regex-syntax v0.7.1
[INFO] [stderr]     Checking linux-raw-sys v0.3.7
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking aho-corasick v1.0.1
[INFO] [stderr]     Checking anstyle v1.0.0
[INFO] [stderr]    Compiling ucd-trie v0.1.5
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]     Checking walkdir v2.3.3
[INFO] [stderr]     Checking bstr v1.4.0
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.58/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 libm v0.2.7
[INFO] [stderr]     Checking anstyle-parse v0.2.0
[INFO] [stderr]    Compiling phf v0.10.1
[INFO] [stderr]     Checking iana-time-zone v0.1.56
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]    Compiling serde_json v1.0.96
[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" "aa3cd91bbc8b2b1d9bc938ebc4f8cf2fa1e6fd2c2d056864ffc8adb7774302f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa3cd91bbc8b2b1d9bc938ebc4f8cf2fa1e6fd2c2d056864ffc8adb7774302f8", kill_on_drop: false }`
[INFO] [stdout] aa3cd91bbc8b2b1d9bc938ebc4f8cf2fa1e6fd2c2d056864ffc8adb7774302f8