[INFO] fetching crate fieldmask_derive 0.2.0...
[INFO] checking fieldmask_derive-0.2.0 against try#804fff1ae95da9d03bd44eee27f258020a575dab for pr-146013
[INFO] extracting crate fieldmask_derive 0.2.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate fieldmask_derive 0.2.0
[INFO] finished tweaking crates.io crate fieldmask_derive 0.2.0
[INFO] tweaked toml for crates.io crate fieldmask_derive 0.2.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fieldmask_derive 0.2.0 on toolchain 804fff1ae95da9d03bd44eee27f258020a575dab
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+804fff1ae95da9d03bd44eee27f258020a575dab" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate fieldmask_derive 0.2.0 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" "+804fff1ae95da9d03bd44eee27f258020a575dab" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+804fff1ae95da9d03bd44eee27f258020a575dab" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0f21935a493666eef964b3500305d5dd6ff55afc54c524e7979fd9fbd1d22132
[INFO] running `Command { std: "docker" "start" "-a" "0f21935a493666eef964b3500305d5dd6ff55afc54c524e7979fd9fbd1d22132", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f21935a493666eef964b3500305d5dd6ff55afc54c524e7979fd9fbd1d22132", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f21935a493666eef964b3500305d5dd6ff55afc54c524e7979fd9fbd1d22132", kill_on_drop: false }`
[INFO] [stdout] 0f21935a493666eef964b3500305d5dd6ff55afc54c524e7979fd9fbd1d22132
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+804fff1ae95da9d03bd44eee27f258020a575dab" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 510570c981ad08bbf3bace0a4ae1ceef443266da295c63218d33e7fb763f59ff
[INFO] running `Command { std: "docker" "start" "-a" "510570c981ad08bbf3bace0a4ae1ceef443266da295c63218d33e7fb763f59ff", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking unicode-ident v1.0.18
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking proc-macro2 v1.0.94
[INFO] [stderr]     Checking quote v1.0.40
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking syn v2.0.100
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr] error: could not compile `regex` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   could not execute process `/opt/rustwide/rustup-home/toolchains/804fff1ae95da9d03bd44eee27f258020a575dab/bin/rustc --crate-name regex --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/regex-1.11.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no --cfg 'feature="default"' --cfg 'feature="perf"' --cfg 'feature="perf-backtrack"' --cfg 'feature="perf-cache"' --cfg 'feature="perf-dfa"' --cfg 'feature="perf-inline"' --cfg 'feature="perf-literal"' --cfg 'feature="perf-onepass"' --cfg 'feature="std"' --cfg 'feature="unicode"' --cfg 'feature="unicode-age"' --cfg 'feature="unicode-bool"' --cfg 'feature="unicode-case"' --cfg 'feature="unicode-gencat"' --cfg 'feature="unicode-perl"' --cfg 'feature="unicode-script"' --cfg 'feature="unicode-segment"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("default", "logging", "pattern", "perf", "perf-backtrack", "perf-cache", "perf-dfa", "perf-dfa-full", "perf-inline", "perf-literal", "perf-onepass", "std", "unicode", "unicode-age", "unicode-bool", "unicode-case", "unicode-gencat", "unicode-perl", "unicode-script", "unicode-segment", "unstable", "use_std"))' -C metadata=f0c93a3296bf49d9 -C extra-filename=-6cec310e7b66115e --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern aho_corasick=/opt/rustwide/target/debug/deps/libaho_corasick-2e46a1acd4752408.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-61a669813460bcce.rmeta --extern regex_automata=/opt/rustwide/target/debug/deps/libregex_automata-27e10de02d572dff.rmeta --extern regex_syntax=/opt/rustwide/target/debug/deps/libregex_syntax-94dfa1f78d2d765d.rmeta --cap-lints allow --cap-lints=forbid` (never executed)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No such file or directory (os error 2)
[INFO] running `Command { std: "docker" "inspect" "510570c981ad08bbf3bace0a4ae1ceef443266da295c63218d33e7fb763f59ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "510570c981ad08bbf3bace0a4ae1ceef443266da295c63218d33e7fb763f59ff", kill_on_drop: false }`
[INFO] [stdout] 510570c981ad08bbf3bace0a4ae1ceef443266da295c63218d33e7fb763f59ff