[INFO] cloning repository https://github.com/CaptainWheelChair/MusicalPenguin
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CaptainWheelChair/MusicalPenguin" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCaptainWheelChair%2FMusicalPenguin", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCaptainWheelChair%2FMusicalPenguin'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 702489c71aeda8482eb627eab3fc849198cf4486
[INFO] checking CaptainWheelChair/MusicalPenguin against master#9b81629631b382fd49ee3a20ac47797b1467e52d for pr-146095
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCaptainWheelChair%2FMusicalPenguin" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/CaptainWheelChair/MusicalPenguin
[INFO] finished tweaking git repo https://github.com/CaptainWheelChair/MusicalPenguin
[INFO] tweaked toml for git repo https://github.com/CaptainWheelChair/MusicalPenguin written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/CaptainWheelChair/MusicalPenguin on toolchain 9b81629631b382fd49ee3a20ac47797b1467e52d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9b81629631b382fd49ee3a20ac47797b1467e52d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/CaptainWheelChair/MusicalPenguin 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" "+9b81629631b382fd49ee3a20ac47797b1467e52d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded slashy v0.1.2
[INFO] [stderr]   Downloaded slashy_macros v0.1.2
[INFO] [stderr]   Downloaded songbird v0.3.2
[INFO] [stderr]   Downloaded generator v0.7.3
[INFO] [stderr]   Downloaded h2 v0.3.17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+9b81629631b382fd49ee3a20ac47797b1467e52d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0dfaa05035f343058cc499bdc37ccd34ff71476dbc01e7b17d490426a38e6e50
[INFO] running `Command { std: "docker" "start" "-a" "0dfaa05035f343058cc499bdc37ccd34ff71476dbc01e7b17d490426a38e6e50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0dfaa05035f343058cc499bdc37ccd34ff71476dbc01e7b17d490426a38e6e50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dfaa05035f343058cc499bdc37ccd34ff71476dbc01e7b17d490426a38e6e50", kill_on_drop: false }`
[INFO] [stdout] 0dfaa05035f343058cc499bdc37ccd34ff71476dbc01e7b17d490426a38e6e50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+9b81629631b382fd49ee3a20ac47797b1467e52d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c26599f7fd626c0779ca544e08ba0a655ada455d8db3f877416c89671cbb04b
[INFO] running `Command { std: "docker" "start" "-a" "8c26599f7fd626c0779ca544e08ba0a655ada455d8db3f877416c89671cbb04b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]    Compiling tokio v1.27.0
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling rustls v0.20.8
[INFO] [stderr]     Checking http v0.2.9
[INFO] [stderr]     Checking cpufeatures v0.2.6
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.56/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a feature with a similar name: `proc_macro_span_file`
[INFO] [stdout]    |
[INFO] [stdout] 92 -     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout] 92 +     feature(proc_macro_span, proc_macro_span_file)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking digest v0.10.6
[INFO] [stderr]    Compiling async-trait v0.1.68
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]     Checking base64 v0.21.0
[INFO] [stderr]     Checking sha-1 v0.10.1
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking ipnet v2.7.2
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking rustls-pemfile v1.0.2
[INFO] [stderr]     Checking time-core v0.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling serenity v0.11.5
[INFO] [stderr]     Checking universal-hash v0.4.1
[INFO] [stderr]    Compiling regex v1.7.3
[INFO] [stderr]     Checking cipher v0.3.0
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]     Checking flate2 v1.0.25
[INFO] [stderr]     Checking pnet_base v0.28.0
[INFO] [stderr]     Checking typemap_rev v0.1.5
[INFO] [stderr]     Checking zeroize v1.3.0
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]     Checking poly1305 v0.7.2
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking http-body v0.4.5
[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" "8c26599f7fd626c0779ca544e08ba0a655ada455d8db3f877416c89671cbb04b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c26599f7fd626c0779ca544e08ba0a655ada455d8db3f877416c89671cbb04b", kill_on_drop: false }`
[INFO] [stdout] 8c26599f7fd626c0779ca544e08ba0a655ada455d8db3f877416c89671cbb04b
