[INFO] cloning repository https://github.com/D1plo1d/tiny-artnet
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/D1plo1d/tiny-artnet" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FD1plo1d%2Ftiny-artnet", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FD1plo1d%2Ftiny-artnet'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b1088084ed1a0ce732a1d1364a07776a09f5eb25
[INFO] checking D1plo1d/tiny-artnet against master#292be5c7c05138d753bbd4b30db7a3f1a5c914f7 for pr-148271
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FD1plo1d%2Ftiny-artnet" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/D1plo1d/tiny-artnet
[INFO] finished tweaking git repo https://github.com/D1plo1d/tiny-artnet
[INFO] tweaked toml for git repo https://github.com/D1plo1d/tiny-artnet written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/D1plo1d/tiny-artnet on toolchain 292be5c7c05138d753bbd4b30db7a3f1a5c914f7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+292be5c7c05138d753bbd4b30db7a3f1a5c914f7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/D1plo1d/tiny-artnet 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" "+292be5c7c05138d753bbd4b30db7a3f1a5c914f7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded neli v0.5.3
[INFO] [stderr]   Downloaded tiny-artnet-bytes-no-atomic v1.2.2
[INFO] [stderr]   Downloaded local-ip-address v0.4.8
[INFO] [stderr]   Downloaded mac_address v1.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+292be5c7c05138d753bbd4b30db7a3f1a5c914f7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a23c49c4cec9d3afa4edea96d9e621c7ed2f341c2dc134627a8e5ca6d9953c6f
[INFO] running `Command { std: "docker" "start" "-a" "a23c49c4cec9d3afa4edea96d9e621c7ed2f341c2dc134627a8e5ca6d9953c6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a23c49c4cec9d3afa4edea96d9e621c7ed2f341c2dc134627a8e5ca6d9953c6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a23c49c4cec9d3afa4edea96d9e621c7ed2f341c2dc134627a8e5ca6d9953c6f", kill_on_drop: false }`
[INFO] [stdout] a23c49c4cec9d3afa4edea96d9e621c7ed2f341c2dc134627a8e5ca6d9953c6f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+292be5c7c05138d753bbd4b30db7a3f1a5c914f7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e36f74079515db34455a255edb8527df78c80fb28ae797544973ac8b88b7cb2
[INFO] running `Command { std: "docker" "start" "-a" "8e36f74079515db34455a255edb8527df78c80fb28ae797544973ac8b88b7cb2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling libc v0.2.134
[INFO] [stderr]    Compiling syn v1.0.101
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling tiny-artnet-bytes-no-atomic v1.2.2
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.46/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] [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" "8e36f74079515db34455a255edb8527df78c80fb28ae797544973ac8b88b7cb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e36f74079515db34455a255edb8527df78c80fb28ae797544973ac8b88b7cb2", kill_on_drop: false }`
[INFO] [stdout] 8e36f74079515db34455a255edb8527df78c80fb28ae797544973ac8b88b7cb2
