[INFO] cloning repository https://github.com/devfire/chat-app
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/devfire/chat-app" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdevfire%2Fchat-app", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdevfire%2Fchat-app'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 68d152012977c71aba1937398fa070d4a6964666
[INFO] checking devfire/chat-app/68d152012977c71aba1937398fa070d4a6964666 against master#426a60abc213b28a7c7198e475476b6e650d871f for pr-129199
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdevfire%2Fchat-app" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/devfire/chat-app on toolchain 426a60abc213b28a7c7198e475476b6e650d871f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+426a60abc213b28a7c7198e475476b6e650d871f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/devfire/chat-app
[INFO] finished tweaking git repo https://github.com/devfire/chat-app
[INFO] tweaked toml for git repo https://github.com/devfire/chat-app written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/devfire/chat-app 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" "+426a60abc213b28a7c7198e475476b6e650d871f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ref-cast v1.0.14
[INFO] [stderr]   Downloaded ref-cast-impl v1.0.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+426a60abc213b28a7c7198e475476b6e650d871f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6032cef9de124d3d4d56a1556357872b90b05e354d41ec277ad8df1319df4baf
[INFO] running `Command { std: "docker" "start" "-a" "6032cef9de124d3d4d56a1556357872b90b05e354d41ec277ad8df1319df4baf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6032cef9de124d3d4d56a1556357872b90b05e354d41ec277ad8df1319df4baf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6032cef9de124d3d4d56a1556357872b90b05e354d41ec277ad8df1319df4baf", kill_on_drop: false }`
[INFO] [stdout] 6032cef9de124d3d4d56a1556357872b90b05e354d41ec277ad8df1319df4baf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+426a60abc213b28a7c7198e475476b6e650d871f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41f9352c97f62c6d01b3655ac5a50705694678acff0eade641f9f6bd990930cb
[INFO] running `Command { std: "docker" "start" "-a" "41f9352c97f62c6d01b3655ac5a50705694678acff0eade641f9f6bd990930cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling libc v0.2.138
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling yansi v0.5.1
[INFO] [stderr]    Compiling serde_derive v1.0.151
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling serde v1.0.151
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]     Checking bytes v1.3.0
[INFO] [stderr]     Checking itoa v1.0.5
[INFO] [stderr]    Compiling cpufeatures v0.2.5
[INFO] [stderr]    Compiling time-core v0.1.0
[INFO] [stderr]     Checking futures-sink v0.3.25
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]    Compiling time-macros v0.2.6
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.9.1
[INFO] [stderr]    Compiling tokio v1.23.0
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.49/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]     Checking once_cell v1.16.0
[INFO] [stderr]    Compiling cookie v0.16.2
[INFO] [stderr]    Compiling ref-cast v1.0.14
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]     Checking futures-io v0.3.25
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[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" "41f9352c97f62c6d01b3655ac5a50705694678acff0eade641f9f6bd990930cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41f9352c97f62c6d01b3655ac5a50705694678acff0eade641f9f6bd990930cb", kill_on_drop: false }`
[INFO] [stdout] 41f9352c97f62c6d01b3655ac5a50705694678acff0eade641f9f6bd990930cb