[INFO] cloning repository https://github.com/timhudson/aych-delay
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/timhudson/aych-delay" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimhudson%2Faych-delay", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimhudson%2Faych-delay'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9c0c19529c541897df5d98c416db1e8d37d3a054
[INFO] checking timhudson/aych-delay/9c0c19529c541897df5d98c416db1e8d37d3a054 against master#092a284ba0421695f2032c947765429fd7095796 for pr-139763
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimhudson%2Faych-delay" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/timhudson/aych-delay on toolchain 092a284ba0421695f2032c947765429fd7095796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+092a284ba0421695f2032c947765429fd7095796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/timhudson/aych-delay
[INFO] finished tweaking git repo https://github.com/timhudson/aych-delay
[INFO] tweaked toml for git repo https://github.com/timhudson/aych-delay written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/timhudson/aych-delay 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" "+092a284ba0421695f2032c947765429fd7095796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded coreaudio-sys v0.2.11
[INFO] [stderr]   Downloaded oboe v0.4.6
[INFO] [stderr]   Downloaded hound v3.5.0
[INFO] [stderr]   Downloaded clang-sys v1.4.0
[INFO] [stderr]   Downloaded alsa v0.6.0
[INFO] [stderr]   Downloaded claxon v0.4.3
[INFO] [stderr]   Downloaded serde v1.0.151
[INFO] [stderr]   Downloaded serde_derive v1.0.151
[INFO] [stderr]   Downloaded oboe-sys v0.4.5
[INFO] [stderr]   Downloaded bindgen v0.61.0
[INFO] [stderr]   Downloaded serde_json v1.0.91
[INFO] [stderr]   Downloaded cpal v0.14.2
[INFO] [stderr]   Downloaded rodio v0.16.0
[INFO] [stderr]   Downloaded libc v0.2.138
[INFO] [stderr]   Downloaded windows_aarch64_msvc v0.37.0
[INFO] [stderr]   Downloaded windows_x86_64_msvc v0.37.0
[INFO] [stderr]   Downloaded windows_i686_msvc v0.37.0
[INFO] [stderr]   Downloaded windows_i686_gnu v0.37.0
[INFO] [stderr]   Downloaded windows_x86_64_gnu v0.37.0
[INFO] [stderr]   Downloaded windows v0.37.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+092a284ba0421695f2032c947765429fd7095796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d13c154dc4298e4cc043a1c3d99300c53453c45ebff83cba24e044af8e0a9f9
[INFO] running `Command { std: "docker" "start" "-a" "4d13c154dc4298e4cc043a1c3d99300c53453c45ebff83cba24e044af8e0a9f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d13c154dc4298e4cc043a1c3d99300c53453c45ebff83cba24e044af8e0a9f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d13c154dc4298e4cc043a1c3d99300c53453c45ebff83cba24e044af8e0a9f9", kill_on_drop: false }`
[INFO] [stdout] 4d13c154dc4298e4cc043a1c3d99300c53453c45ebff83cba24e044af8e0a9f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+092a284ba0421695f2032c947765429fd7095796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5445386018052b01f4ad891652877f8c958cd01151b53bc1b93a2136d86a810
[INFO] running `Command { std: "docker" "start" "-a" "e5445386018052b01f4ad891652877f8c958cd01151b53bc1b93a2136d86a810", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.138
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling cc v1.0.78
[INFO] [stderr]    Compiling parking_lot_core v0.9.5
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.49/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 cpal v0.14.2
[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" "e5445386018052b01f4ad891652877f8c958cd01151b53bc1b93a2136d86a810", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5445386018052b01f4ad891652877f8c958cd01151b53bc1b93a2136d86a810", kill_on_drop: false }`
[INFO] [stdout] e5445386018052b01f4ad891652877f8c958cd01151b53bc1b93a2136d86a810