[INFO] cloning repository https://github.com/JiatLn/colorcc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JiatLn/colorcc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJiatLn%2Fcolorcc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJiatLn%2Fcolorcc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 04797e8a7ba1f033db84e9550e13b0d738a42e84
[INFO] checking JiatLn/colorcc/04797e8a7ba1f033db84e9550e13b0d738a42e84 against master#27d8a577138c0d319a572cd1a464c2b755e577de for pr-118882
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJiatLn%2Fcolorcc" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JiatLn/colorcc on toolchain 27d8a577138c0d319a572cd1a464c2b755e577de
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+27d8a577138c0d319a572cd1a464c2b755e577de" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JiatLn/colorcc
[INFO] finished tweaking git repo https://github.com/JiatLn/colorcc
[INFO] tweaked toml for git repo https://github.com/JiatLn/colorcc written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/JiatLn/colorcc 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" "+27d8a577138c0d319a572cd1a464c2b755e577de" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+27d8a577138c0d319a572cd1a464c2b755e577de" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 402786c0ff7e3e59e1cb259ac911b1ff9e0bd1802f05e8d04516dc733e955bf8
[INFO] running `Command { std: "docker" "start" "-a" "402786c0ff7e3e59e1cb259ac911b1ff9e0bd1802f05e8d04516dc733e955bf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "402786c0ff7e3e59e1cb259ac911b1ff9e0bd1802f05e8d04516dc733e955bf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "402786c0ff7e3e59e1cb259ac911b1ff9e0bd1802f05e8d04516dc733e955bf8", kill_on_drop: false }`
[INFO] [stdout] 402786c0ff7e3e59e1cb259ac911b1ff9e0bd1802f05e8d04516dc733e955bf8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+27d8a577138c0d319a572cd1a464c2b755e577de" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 981400fe3375399972c3cac4f93f196e7eb3fc639093860e292b3fbb586fb4bd
[INFO] running `Command { std: "docker" "start" "-a" "981400fe3375399972c3cac4f93f196e7eb3fc639093860e292b3fbb586fb4bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]    Compiling unicode-segmentation v1.10.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.47/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] [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" "981400fe3375399972c3cac4f93f196e7eb3fc639093860e292b3fbb586fb4bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "981400fe3375399972c3cac4f93f196e7eb3fc639093860e292b3fbb586fb4bd", kill_on_drop: false }`
[INFO] [stdout] 981400fe3375399972c3cac4f93f196e7eb3fc639093860e292b3fbb586fb4bd