[INFO] cloning repository https://github.com/HorseXInsectCoder/websocket_demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/HorseXInsectCoder/websocket_demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHorseXInsectCoder%2Fwebsocket_demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHorseXInsectCoder%2Fwebsocket_demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c12878ccc1a7aa552b1c00bbe1694a946e001b22
[INFO] checking HorseXInsectCoder/websocket_demo against master#5a45ab9738330fb317d49e3594c2db5248b1e971 for pr-136303
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHorseXInsectCoder%2Fwebsocket_demo" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/HorseXInsectCoder/websocket_demo on toolchain 5a45ab9738330fb317d49e3594c2db5248b1e971
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/HorseXInsectCoder/websocket_demo
[INFO] finished tweaking git repo https://github.com/HorseXInsectCoder/websocket_demo
[INFO] tweaked toml for git repo https://github.com/HorseXInsectCoder/websocket_demo written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/HorseXInsectCoder/websocket_demo 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" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded warp v0.3.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a892852f9f393f7ab6b462607cab1a02f88ccff9d9e885a6c1bcb68a9ec3cda
[INFO] running `Command { std: "docker" "start" "-a" "0a892852f9f393f7ab6b462607cab1a02f88ccff9d9e885a6c1bcb68a9ec3cda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a892852f9f393f7ab6b462607cab1a02f88ccff9d9e885a6c1bcb68a9ec3cda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a892852f9f393f7ab6b462607cab1a02f88ccff9d9e885a6c1bcb68a9ec3cda", kill_on_drop: false }`
[INFO] [stdout] 0a892852f9f393f7ab6b462607cab1a02f88ccff9d9e885a6c1bcb68a9ec3cda
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 588807c996c8b49841df52c15d9ff84cf315a0a59c37b7d8718d440d1d22d5e9
[INFO] running `Command { std: "docker" "start" "-a" "588807c996c8b49841df52c15d9ff84cf315a0a59c37b7d8718d440d1d22d5e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]     Checking bytes v1.3.0
[INFO] [stderr]     Checking itoa v1.0.5
[INFO] [stderr]    Compiling parking_lot_core v0.9.6
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]     Checking futures-sink v0.3.25
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling tokio v1.24.1
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking futures-io v0.3.25
[INFO] [stderr]     Checking mio v0.8.5
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking base64 v0.13.1
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]     Checking unicode-bidi v0.3.8
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking mime v0.3.16
[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]     Checking http v0.2.8
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking try-lock v0.2.4
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking fastrand v1.8.0
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]     Checking ryu v1.0.12
[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" "588807c996c8b49841df52c15d9ff84cf315a0a59c37b7d8718d440d1d22d5e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "588807c996c8b49841df52c15d9ff84cf315a0a59c37b7d8718d440d1d22d5e9", kill_on_drop: false }`
[INFO] [stdout] 588807c996c8b49841df52c15d9ff84cf315a0a59c37b7d8718d440d1d22d5e9
