[INFO] cloning repository https://github.com/Decodetalkers/metronome
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Decodetalkers/metronome" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDecodetalkers%2Fmetronome", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDecodetalkers%2Fmetronome'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1129abca52210c24af2aec5e7ef839279e4893b2
[INFO] checking Decodetalkers/metronome against try#b4c55082edd8dec08ce8af276d7054d9c4db20c4 for pr-147984
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDecodetalkers%2Fmetronome" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Decodetalkers/metronome
[INFO] finished tweaking git repo https://github.com/Decodetalkers/metronome
[INFO] tweaked toml for git repo https://github.com/Decodetalkers/metronome written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Decodetalkers/metronome on toolchain b4c55082edd8dec08ce8af276d7054d9c4db20c4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4c55082edd8dec08ce8af276d7054d9c4db20c4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Decodetalkers/metronome 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" "+b4c55082edd8dec08ce8af276d7054d9c4db20c4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b4c55082edd8dec08ce8af276d7054d9c4db20c4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a3db34cbd634e489b168b1c2c5e726d94140b341a69bb917ba7c9491ce38bac6
[INFO] running `Command { std: "docker" "start" "-a" "a3db34cbd634e489b168b1c2c5e726d94140b341a69bb917ba7c9491ce38bac6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3db34cbd634e489b168b1c2c5e726d94140b341a69bb917ba7c9491ce38bac6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3db34cbd634e489b168b1c2c5e726d94140b341a69bb917ba7c9491ce38bac6", kill_on_drop: false }`
[INFO] [stdout] a3db34cbd634e489b168b1c2c5e726d94140b341a69bb917ba7c9491ce38bac6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b4c55082edd8dec08ce8af276d7054d9c4db20c4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea4c8f116f61833d9c1e114c256fe516063bfad489f3e376fb7feef14140841d
[INFO] running `Command { std: "docker" "start" "-a" "ea4c8f116f61833d9c1e114c256fe516063bfad489f3e376fb7feef14140841d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling proc-macro2 v1.0.59
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling log v0.4.18
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling xml-rs v0.8.14
[INFO] [stderr]     Checking libloading v0.8.0
[INFO] [stderr]    Compiling cmake v0.1.50
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling phf_shared v0.11.1
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]     Checking slab v0.4.8
[INFO] [stderr]    Compiling phf_generator v0.11.1
[INFO] [stderr]    Compiling smithay-client-toolkit v0.16.0
[INFO] [stderr]     Checking simd-adler32 v0.3.5
[INFO] [stderr]    Compiling palette v0.6.1
[INFO] [stderr]     Checking raw-window-handle v0.5.2
[INFO] [stderr]    Compiling servo-fontconfig-sys v5.1.0
[INFO] [stderr]     Checking dlib v0.5.2
[INFO] [stderr]    Compiling tokio v1.28.2
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking ttf-parser v0.19.0
[INFO] [stderr]    Compiling ash v0.37.3+1.3.251
[INFO] [stderr]     Checking futures-channel v0.3.28
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.59/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 v0.7.1
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]    Compiling freetype-sys v0.13.1
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]     Checking codespan-reporting v0.11.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking spirv v0.2.0+1.5.4
[INFO] [stderr]     Checking ab_glyph_rasterizer v0.1.8
[INFO] [stderr]     Checking gpu-alloc v0.5.4
[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" "ea4c8f116f61833d9c1e114c256fe516063bfad489f3e376fb7feef14140841d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea4c8f116f61833d9c1e114c256fe516063bfad489f3e376fb7feef14140841d", kill_on_drop: false }`
[INFO] [stdout] ea4c8f116f61833d9c1e114c256fe516063bfad489f3e376fb7feef14140841d
