[INFO] fetching crate gst-plugin-webrtc-signalling 0.10.7...
[INFO] checking gst-plugin-webrtc-signalling-0.10.7 against try#377afada703be70d3fdff9164a481570a3cba7fe for pr-113240
[INFO] extracting crate gst-plugin-webrtc-signalling 0.10.7 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate gst-plugin-webrtc-signalling 0.10.7 on toolchain 377afada703be70d3fdff9164a481570a3cba7fe
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+377afada703be70d3fdff9164a481570a3cba7fe" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gst-plugin-webrtc-signalling 0.10.7
[INFO] finished tweaking crates.io crate gst-plugin-webrtc-signalling 0.10.7
[INFO] tweaked toml for crates.io crate gst-plugin-webrtc-signalling 0.10.7 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate gst-plugin-webrtc-signalling 0.10.7 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" "+377afada703be70d3fdff9164a481570a3cba7fe" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+377afada703be70d3fdff9164a481570a3cba7fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5312d7149a8e5f46c28d21e299030c8803e399ed4257e8352a6add025810fc68
[INFO] running `Command { std: "docker" "start" "-a" "5312d7149a8e5f46c28d21e299030c8803e399ed4257e8352a6add025810fc68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5312d7149a8e5f46c28d21e299030c8803e399ed4257e8352a6add025810fc68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5312d7149a8e5f46c28d21e299030c8803e399ed4257e8352a6add025810fc68", kill_on_drop: false }`
[INFO] [stdout] 5312d7149a8e5f46c28d21e299030c8803e399ed4257e8352a6add025810fc68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+377afada703be70d3fdff9164a481570a3cba7fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d28696d32134ca74226b627bc563a0e33abeaf5e40b5cf0a03a9d6e0c7efee5
[INFO] running `Command { std: "docker" "start" "-a" "8d28696d32134ca74226b627bc563a0e33abeaf5e40b5cf0a03a9d6e0c7efee5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling quote v1.0.27
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling io-lifetimes v1.0.10
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling openssl-sys v0.9.87
[INFO] [stderr]    Compiling openssl v0.10.52
[INFO] [stderr]    Compiling rustix v0.37.19
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling serde_derive v1.0.162
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]     Checking linux-raw-sys v0.3.7
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling tokio v1.28.0
[INFO] [stderr]    Compiling serde v1.0.162
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]     Checking digest v0.10.6
[INFO] [stderr]     Checking anstyle-parse v0.2.0
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]     Checking anstyle-query v1.0.0
[INFO] [stderr]     Checking colorchoice v1.0.0
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]     Checking anstyle v1.0.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking cpufeatures v0.2.7
[INFO] [stderr]     Checking url v2.3.1
[INFO] [stderr]     Checking sha1 v0.10.5
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking clap_lex v0.4.1
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.56/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking data-encoding v2.3.3
[INFO] [stderr]     Checking regex-syntax v0.7.1
[INFO] [stderr]     Checking tracing-log v0.1.3
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]     Checking nu-ansi-term v0.46.0
[INFO] [stdout] error: aborting due to 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" "8d28696d32134ca74226b627bc563a0e33abeaf5e40b5cf0a03a9d6e0c7efee5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d28696d32134ca74226b627bc563a0e33abeaf5e40b5cf0a03a9d6e0c7efee5", kill_on_drop: false }`
[INFO] [stdout] 8d28696d32134ca74226b627bc563a0e33abeaf5e40b5cf0a03a9d6e0c7efee5