[INFO] cloning repository https://github.com/BL4D35M1TH/rust-webrtc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BL4D35M1TH/rust-webrtc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBL4D35M1TH%2Frust-webrtc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBL4D35M1TH%2Frust-webrtc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] efb5df215d143d2df79dfe4838c47455c48f3f47
[INFO] checking BL4D35M1TH/rust-webrtc against try#73ffebff6f34db7eb167bf9edcf2afa19c3073e9 for pr-147841
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBL4D35M1TH%2Frust-webrtc" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/BL4D35M1TH/rust-webrtc
[INFO] finished tweaking git repo https://github.com/BL4D35M1TH/rust-webrtc
[INFO] tweaked toml for git repo https://github.com/BL4D35M1TH/rust-webrtc written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/BL4D35M1TH/rust-webrtc on toolchain 73ffebff6f34db7eb167bf9edcf2afa19c3073e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/BL4D35M1TH/rust-webrtc 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" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6b3915c2e81c7853109bffcf0d5109b6af74b762d8ad7bc58bfc94a73f2079de
[INFO] running `Command { std: "docker" "start" "-a" "6b3915c2e81c7853109bffcf0d5109b6af74b762d8ad7bc58bfc94a73f2079de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b3915c2e81c7853109bffcf0d5109b6af74b762d8ad7bc58bfc94a73f2079de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b3915c2e81c7853109bffcf0d5109b6af74b762d8ad7bc58bfc94a73f2079de", kill_on_drop: false }`
[INFO] [stdout] 6b3915c2e81c7853109bffcf0d5109b6af74b762d8ad7bc58bfc94a73f2079de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] abdc51feb8747a7abbe8cbe621b9ea9d2a0cf7db6c32b4d2c49aa69a150a49b9
[INFO] running `Command { std: "docker" "start" "-a" "abdc51feb8747a7abbe8cbe621b9ea9d2a0cf7db6c32b4d2c49aa69a150a49b9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.44
[INFO] [stderr]    Compiling syn v1.0.101
[INFO] [stderr]    Compiling libc v0.2.133
[INFO] [stderr]    Compiling thiserror v1.0.36
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling cfg-expr v0.10.3
[INFO] [stderr]    Compiling version-compare v0.1.0
[INFO] [stderr]     Checking block-buffer v0.10.3
[INFO] [stderr]     Checking num-traits v0.2.15
[INFO] [stderr]    Compiling webrtc-util v0.6.0
[INFO] [stderr]    Compiling futures-util v0.3.24
[INFO] [stderr]    Compiling openssl-sys v0.9.76
[INFO] [stderr]     Checking percent-encoding v2.2.0
[INFO] [stderr]     Checking digest v0.10.5
[INFO] [stderr]     Checking form_urlencoded v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.145
[INFO] [stderr]     Checking idna v0.3.0
[INFO] [stderr]     Checking base64ct v1.5.2
[INFO] [stderr]    Compiling futures-channel v0.3.24
[INFO] [stderr]     Checking rusticata-macros v4.1.0
[INFO] [stderr]     Checking universal-hash v0.4.1
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking const-oid v0.9.0
[INFO] [stderr]    Compiling openssl v0.10.42
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling native-tls v0.2.10
[INFO] [stderr]    Compiling time-macros v0.2.4
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.44/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 tracing-core v0.1.29
[INFO] [stderr]     Checking cipher v0.2.5
[INFO] [stderr]    Compiling anyhow v1.0.65
[INFO] [stderr]     Checking url v2.3.1
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]     Checking crc-catalog v2.1.0
[INFO] [stderr]     Checking pem-rfc7468 v0.6.0
[INFO] [stderr]     Checking base16ct v0.1.1
[INFO] [stderr]     Checking hkdf v0.12.3
[INFO] [stderr]     Checking cipher v0.3.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking crc v3.0.0
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling oid-registry v0.4.0
[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" "abdc51feb8747a7abbe8cbe621b9ea9d2a0cf7db6c32b4d2c49aa69a150a49b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abdc51feb8747a7abbe8cbe621b9ea9d2a0cf7db6c32b4d2c49aa69a150a49b9", kill_on_drop: false }`
[INFO] [stdout] abdc51feb8747a7abbe8cbe621b9ea9d2a0cf7db6c32b4d2c49aa69a150a49b9
