[INFO] cloning repository https://github.com/Angramme/compdiff
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Angramme/compdiff" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAngramme%2Fcompdiff", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAngramme%2Fcompdiff'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cc61437690681cf7e774394d7d28edba23d1903b
[INFO] checking Angramme/compdiff against master#90b65889799733f21ebdf59d96411aa531c5900a for pr-148477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAngramme%2Fcompdiff" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Angramme/compdiff
[INFO] finished tweaking git repo https://github.com/Angramme/compdiff
[INFO] tweaked toml for git repo https://github.com/Angramme/compdiff written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Angramme/compdiff on toolchain 90b65889799733f21ebdf59d96411aa531c5900a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+90b65889799733f21ebdf59d96411aa531c5900a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Angramme/compdiff 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" "+90b65889799733f21ebdf59d96411aa531c5900a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clap_derive v4.0.18
[INFO] [stderr]   Downloaded once_cell v1.15.0
[INFO] [stderr]   Downloaded binaryornot v1.0.0
[INFO] [stderr]   Downloaded os_str_bytes v6.3.1
[INFO] [stderr]   Downloaded chardet v0.2.4
[INFO] [stderr]   Downloaded string-error v0.1.0
[INFO] [stderr]   Downloaded process_control v4.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+90b65889799733f21ebdf59d96411aa531c5900a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 27c0ced89cb673ccf75626a95cc2d09ff81890b9b255b3dc46febbd1dd900d00
[INFO] running `Command { std: "docker" "start" "-a" "27c0ced89cb673ccf75626a95cc2d09ff81890b9b255b3dc46febbd1dd900d00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27c0ced89cb673ccf75626a95cc2d09ff81890b9b255b3dc46febbd1dd900d00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27c0ced89cb673ccf75626a95cc2d09ff81890b9b255b3dc46febbd1dd900d00", kill_on_drop: false }`
[INFO] [stdout] 27c0ced89cb673ccf75626a95cc2d09ff81890b9b255b3dc46febbd1dd900d00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+90b65889799733f21ebdf59d96411aa531c5900a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 35b149df3433df6906402f3e1d5ad2baa6ab05f73d2f765ccb2eab96d05be128
[INFO] running `Command { std: "docker" "start" "-a" "35b149df3433df6906402f3e1d5ad2baa6ab05f73d2f765ccb2eab96d05be128", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling process_control v4.0.1
[INFO] [stderr]     Checking os_str_bytes v6.3.1
[INFO] [stderr]     Checking chardet v0.2.4
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]     Checking string-error v0.1.0
[INFO] [stderr]     Checking clap_lex v0.3.0
[INFO] [stderr]     Checking binaryornot v1.0.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking which v4.3.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.47/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] running `Command { std: "docker" "inspect" "35b149df3433df6906402f3e1d5ad2baa6ab05f73d2f765ccb2eab96d05be128", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35b149df3433df6906402f3e1d5ad2baa6ab05f73d2f765ccb2eab96d05be128", kill_on_drop: false }`
[INFO] [stdout] 35b149df3433df6906402f3e1d5ad2baa6ab05f73d2f765ccb2eab96d05be128
