[INFO] cloning repository https://github.com/eegli/byelines
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eegli/byelines" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feegli%2Fbyelines", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feegli%2Fbyelines'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] de0c0a5a8facc381f51cfeb318caa6f9f813a690
[INFO] checking eegli/byelines against try#0f31acebf540c89e4a4d5d114959fe91973419cb for pr-147017
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feegli%2Fbyelines" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/eegli/byelines
[INFO] finished tweaking git repo https://github.com/eegli/byelines
[INFO] tweaked toml for git repo https://github.com/eegli/byelines written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/eegli/byelines on toolchain 0f31acebf540c89e4a4d5d114959fe91973419cb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0f31acebf540c89e4a4d5d114959fe91973419cb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/eegli/byelines 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" "+0f31acebf540c89e4a4d5d114959fe91973419cb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded simple_logger v4.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+0f31acebf540c89e4a4d5d114959fe91973419cb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5a2ed59db181bc2b8157bdc0159d2e5409356a177f0d7409778857c6829f647a
[INFO] running `Command { std: "docker" "start" "-a" "5a2ed59db181bc2b8157bdc0159d2e5409356a177f0d7409778857c6829f647a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a2ed59db181bc2b8157bdc0159d2e5409356a177f0d7409778857c6829f647a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a2ed59db181bc2b8157bdc0159d2e5409356a177f0d7409778857c6829f647a", kill_on_drop: false }`
[INFO] [stdout] 5a2ed59db181bc2b8157bdc0159d2e5409356a177f0d7409778857c6829f647a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+0f31acebf540c89e4a4d5d114959fe91973419cb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 13d7f41540bf32e7225747d9be9de2079df16b61a274573cc2dc285ce589f42a
[INFO] running `Command { std: "docker" "start" "-a" "13d7f41540bf32e7225747d9be9de2079df16b61a274573cc2dc285ce589f42a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling time-core v0.1.0
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]     Checking flate2 v1.0.25
[INFO] [stderr]    Compiling anyhow v1.0.69
[INFO] [stderr]     Checking bytemuck v1.13.0
[INFO] [stderr]     Checking itoa v1.0.5
[INFO] [stderr]    Compiling time-macros v0.2.6
[INFO] [stderr]     Checking num-rational v0.4.1
[INFO] [stderr]     Checking png v0.17.7
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.51/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" "13d7f41540bf32e7225747d9be9de2079df16b61a274573cc2dc285ce589f42a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13d7f41540bf32e7225747d9be9de2079df16b61a274573cc2dc285ce589f42a", kill_on_drop: false }`
[INFO] [stdout] 13d7f41540bf32e7225747d9be9de2079df16b61a274573cc2dc285ce589f42a