[INFO] fetching crate backtrace-ext 0.2.1...
[INFO] checking backtrace-ext-0.2.1 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate backtrace-ext 0.2.1 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate backtrace-ext 0.2.1
[INFO] finished tweaking crates.io crate backtrace-ext 0.2.1
[INFO] tweaked toml for crates.io crate backtrace-ext 0.2.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate backtrace-ext 0.2.1 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 backtrace-ext 0.2.1 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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.54
[INFO] [stderr]   Downloaded is-terminal v0.4.6
[INFO] [stderr]   Downloaded errno v0.3.0
[INFO] [stderr]   Downloaded miette-derive v5.6.0
[INFO] [stderr]   Downloaded rustc-demangle v0.1.22
[INFO] [stderr]   Downloaded miette v5.6.0
[INFO] [stderr]   Downloaded unicode-linebreak v0.1.4
[INFO] [stderr]   Downloaded io-lifetimes v1.0.9
[INFO] [stderr]   Downloaded supports-color v2.0.0
[INFO] [stderr]   Downloaded syn v2.0.12
[INFO] [stderr]   Downloaded supports-hyperlinks v2.0.0
[INFO] [stderr]   Downloaded smawk v0.3.1
[INFO] [stderr]   Downloaded rustix v0.37.5
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4cafb79d7b7b14b3b1c4fb3b76c8acb8813b699e8da6cc5f768600e15a57be6a
[INFO] running `Command { std: "docker" "start" "-a" "4cafb79d7b7b14b3b1c4fb3b76c8acb8813b699e8da6cc5f768600e15a57be6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4cafb79d7b7b14b3b1c4fb3b76c8acb8813b699e8da6cc5f768600e15a57be6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cafb79d7b7b14b3b1c4fb3b76c8acb8813b699e8da6cc5f768600e15a57be6a", kill_on_drop: false }`
[INFO] [stdout] 4cafb79d7b7b14b3b1c4fb3b76c8acb8813b699e8da6cc5f768600e15a57be6a
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 86864c6546c786a8d4fc1882d59d7b46ff707bd62e37e7833fe85cc23b6b1fbc
[INFO] running `Command { std: "docker" "start" "-a" "86864c6546c786a8d4fc1882d59d7b46ff707bd62e37e7833fe85cc23b6b1fbc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling proc-macro2 v1.0.54
[INFO] [stderr]    Compiling io-lifetimes v1.0.9
[INFO] [stderr]    Compiling rustix v0.37.5
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling backtrace v0.3.67
[INFO] [stderr]     Checking gimli v0.27.2
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]     Checking rustc-demangle v0.1.22
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking smawk v0.3.1
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking object v0.30.3
[INFO] [stderr]     Checking is_ci v1.1.1
[INFO] [stderr]     Checking owo-colors v3.5.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.54/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 aho-corasick v0.7.20
[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" "86864c6546c786a8d4fc1882d59d7b46ff707bd62e37e7833fe85cc23b6b1fbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86864c6546c786a8d4fc1882d59d7b46ff707bd62e37e7833fe85cc23b6b1fbc", kill_on_drop: false }`
[INFO] [stdout] 86864c6546c786a8d4fc1882d59d7b46ff707bd62e37e7833fe85cc23b6b1fbc