[INFO] cloning repository https://github.com/mplsgrant/ws-server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mplsgrant/ws-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmplsgrant%2Fws-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmplsgrant%2Fws-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] df2a0d39fed28c7f31ec7b7fde58459630ff079a
[INFO] checking mplsgrant/ws-server against try#87f2ecc56b5f6032b075c8934ebc77f28d57183c for pr-148190
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmplsgrant%2Fws-server" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mplsgrant/ws-server
[INFO] finished tweaking git repo https://github.com/mplsgrant/ws-server
[INFO] tweaked toml for git repo https://github.com/mplsgrant/ws-server written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mplsgrant/ws-server on toolchain 87f2ecc56b5f6032b075c8934ebc77f28d57183c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mplsgrant/ws-server 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" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b1c48ecc44b4c8ce499351bd265c8736a11ae4cfd812fbc472f6f786e1d1c5f0
[INFO] running `Command { std: "docker" "start" "-a" "b1c48ecc44b4c8ce499351bd265c8736a11ae4cfd812fbc472f6f786e1d1c5f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b1c48ecc44b4c8ce499351bd265c8736a11ae4cfd812fbc472f6f786e1d1c5f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1c48ecc44b4c8ce499351bd265c8736a11ae4cfd812fbc472f6f786e1d1c5f0", kill_on_drop: false }`
[INFO] [stdout] b1c48ecc44b4c8ce499351bd265c8736a11ae4cfd812fbc472f6f786e1d1c5f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b7762e7427f46ffcc8585f271c6f99ae800790d9590047d72ba158d7efa29bec
[INFO] running `Command { std: "docker" "start" "-a" "b7762e7427f46ffcc8585f271c6f99ae800790d9590047d72ba158d7efa29bec", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling cc v1.0.77
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]    Compiling openssl v0.10.42
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking once_cell v1.16.0
[INFO] [stderr]     Checking percent-encoding v2.2.0
[INFO] [stderr]     Checking unicode-bidi v0.3.8
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]     Checking form_urlencoded 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-macro2-1.0.47/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] [stderr]     Checking cpufeatures v0.2.5
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]     Checking http v0.2.8
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking digest v0.10.6
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[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" "b7762e7427f46ffcc8585f271c6f99ae800790d9590047d72ba158d7efa29bec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7762e7427f46ffcc8585f271c6f99ae800790d9590047d72ba158d7efa29bec", kill_on_drop: false }`
[INFO] [stdout] b7762e7427f46ffcc8585f271c6f99ae800790d9590047d72ba158d7efa29bec