[INFO] cloning repository https://github.com/favilo/tiger
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/favilo/tiger" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffavilo%2Ftiger", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffavilo%2Ftiger'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] df48000b1d765fb8300d40eec3be355ee503c176
[INFO] checking favilo/tiger against master#9f48dedc9763334a587c66558974635807a113ed for pr-137394
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffavilo%2Ftiger" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/favilo/tiger on toolchain 9f48dedc9763334a587c66558974635807a113ed
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9f48dedc9763334a587c66558974635807a113ed" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/favilo/tiger
[INFO] finished tweaking git repo https://github.com/favilo/tiger
[INFO] tweaked toml for git repo https://github.com/favilo/tiger written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/favilo/tiger 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" "+9f48dedc9763334a587c66558974635807a113ed" "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 nom-tracable-macros v0.8.0
[INFO] [stderr]   Downloaded nom-tracable v0.8.0
[INFO] [stderr]   Downloaded clap v4.1.3
[INFO] [stderr]   Downloaded nom-recursive-macros v0.4.0
[INFO] [stderr]   Downloaded nom-recursive v0.4.0
[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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9f48dedc9763334a587c66558974635807a113ed" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c3fa6f3d36d7c26710bcc6fc883f851db595f981fd4cfebee5880a98ebd2716b
[INFO] running `Command { std: "docker" "start" "-a" "c3fa6f3d36d7c26710bcc6fc883f851db595f981fd4cfebee5880a98ebd2716b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3fa6f3d36d7c26710bcc6fc883f851db595f981fd4cfebee5880a98ebd2716b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3fa6f3d36d7c26710bcc6fc883f851db595f981fd4cfebee5880a98ebd2716b", kill_on_drop: false }`
[INFO] [stdout] c3fa6f3d36d7c26710bcc6fc883f851db595f981fd4cfebee5880a98ebd2716b
[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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9f48dedc9763334a587c66558974635807a113ed" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3de230f30760df592b2afcc82b392ee40a17ce3a031b1678e1b9de1f29c807a
[INFO] running `Command { std: "docker" "start" "-a" "e3de230f30760df592b2afcc82b392ee40a17ce3a031b1678e1b9de1f29c807a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]     Checking once_cell v1.17.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking ryu v1.0.12
[INFO] [stderr]    Compiling cc v1.0.78
[INFO] [stderr]    Compiling io-lifetimes v1.0.4
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking gimli v0.27.1
[INFO] [stderr]    Compiling rustix v0.36.7
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]    Compiling time-core v0.1.0
[INFO] [stderr]     Checking linux-raw-sys v0.1.4
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.50/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]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]    Compiling aho-corasick v0.7.20
[INFO] [stderr]     Checking nom v7.1.3
[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" "e3de230f30760df592b2afcc82b392ee40a17ce3a031b1678e1b9de1f29c807a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3de230f30760df592b2afcc82b392ee40a17ce3a031b1678e1b9de1f29c807a", kill_on_drop: false }`
[INFO] [stdout] e3de230f30760df592b2afcc82b392ee40a17ce3a031b1678e1b9de1f29c807a