[INFO] fetching crate mdbook-readme 0.0.4...
[INFO] checking mdbook-readme-0.0.4 against try#5d96fa0e954d77528204a1ba3b8847ec083c779b for pr-153457
[INFO] extracting crate mdbook-readme 0.0.4 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate mdbook-readme 0.0.4
[INFO] finished tweaking crates.io crate mdbook-readme 0.0.4
[INFO] tweaked toml for crates.io crate mdbook-readme 0.0.4 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mdbook-readme 0.0.4 on toolchain 5d96fa0e954d77528204a1ba3b8847ec083c779b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5d96fa0e954d77528204a1ba3b8847ec083c779b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5d96fa0e954d77528204a1ba3b8847ec083c779b" "generate-lockfile" "--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]      Locking 275 packages to latest compatible versions
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v0.14.9)
[INFO] [stderr]       Adding lazy-regex v2.5.0 (available: v3.6.0)
[INFO] [stderr]       Adding matchit v0.8.4 (available: v0.8.6)
[INFO] [stderr]       Adding mdbook v0.4.52 (available: v0.5.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5d96fa0e954d77528204a1ba3b8847ec083c779b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+5d96fa0e954d77528204a1ba3b8847ec083c779b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 21c31f67409b5ef0340a930dad4b7370ff701e7df0e5ed9fb92f14d69af8a134
[INFO] running `Command { std: "docker" "start" "-a" "21c31f67409b5ef0340a930dad4b7370ff701e7df0e5ed9fb92f14d69af8a134", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21c31f67409b5ef0340a930dad4b7370ff701e7df0e5ed9fb92f14d69af8a134", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21c31f67409b5ef0340a930dad4b7370ff701e7df0e5ed9fb92f14d69af8a134", kill_on_drop: false }`
[INFO] [stdout] 21c31f67409b5ef0340a930dad4b7370ff701e7df0e5ed9fb92f14d69af8a134
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+5d96fa0e954d77528204a1ba3b8847ec083c779b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 11926780204cbf95cf61b62bd892693067e7368fd7ea1b8ef307a1838fc34436
[INFO] running `Command { std: "docker" "start" "-a" "11926780204cbf95cf61b62bd892693067e7368fd7ea1b8ef307a1838fc34436", kill_on_drop: false }`
[INFO] [stderr]    Compiling siphasher v1.0.2
[INFO] [stderr]     Checking aho-corasick v1.1.4
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]     Checking mio v1.1.1
[INFO] [stderr]     Checking socket2 v0.6.3
[INFO] [stderr]     Checking phf_shared v0.11.3
[INFO] [stderr]    Compiling tokio-macros v2.6.1
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]     Checking getrandom v0.3.4
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]    Compiling pest v2.8.6
[INFO] [stderr]     Checking futures-util v0.3.32
[INFO] [stderr]     Checking icu_normalizer v2.1.1
[INFO] [stderr]     Checking tracing v0.1.44
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking rand_core v0.9.5
[INFO] [stderr]     Checking futures-channel v0.3.32
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling regex-syntax v0.8.10
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]    Compiling phf_generator v0.11.3
[INFO] [stderr]     Checking dtoa v1.0.11
[INFO] [stderr]     Checking rand v0.9.2
[INFO] [stderr]    Compiling phf_codegen v0.11.3
[INFO] [stderr]    Compiling string_cache_codegen v0.5.4
[INFO] [stderr]    Compiling phf_macros v0.11.3
[INFO] [stderr]     Checking dtoa-short v0.3.5
[INFO] [stderr]     Checking inotify v0.11.1
[INFO] [stderr]    Compiling match_token v0.35.0
[INFO] [stderr]     Checking idna_adapter v1.2.1
[INFO] [stderr]     Checking string_cache v0.8.9
[INFO] [stderr]    Compiling cssparser-macros v0.6.1
[INFO] [stderr]     Checking tokio v1.50.0
[INFO] [stderr]     Checking idna v1.1.0
[INFO] [stderr]     Checking notify-types v2.1.0
[INFO] [stderr]    Compiling pulldown-cmark v0.10.3
[INFO] [stderr]     Checking url v2.5.8
[INFO] [stderr]     Checking regex-automata v0.4.14
[INFO] [stderr]     Checking notify v8.2.0
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling web_atoms v0.1.3
[INFO] [stderr]     Checking axum-core v0.5.6
[INFO] [stderr]     Checking phf v0.11.3
[INFO] [stderr]    Compiling pest_meta v2.8.6
[INFO] [stderr]     Checking cssparser v0.35.0
[INFO] [stderr]     Checking pulldown-cmark-escape v0.10.1
[INFO] [stderr]     Checking jiff v0.2.23
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking toml v0.5.11
[INFO] [stderr]     Checking thiserror v2.0.18
[INFO] [stderr]     Checking tungstenite v0.28.0
[INFO] [stderr]     Checking shlex v1.3.0
[INFO] [stderr] error: could not compile `regex-syntax` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/5d96fa0e954d77528204a1ba3b8847ec083c779b/bin/rustc --crate-name regex_syntax --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/regex-syntax-0.8.10/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --allow=unexpected_cfgs --check-cfg 'cfg(docsrs_regex)' --cfg 'feature="default"' --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("arbitrary", "default", "std", "unicode", "unicode-age", "unicode-bool", "unicode-case", "unicode-gencat", "unicode-perl", "unicode-script", "unicode-segment"))' -C metadata=055ed41da5369a59 -C extra-filename=-f8ed72d78990c0ba --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "11926780204cbf95cf61b62bd892693067e7368fd7ea1b8ef307a1838fc34436", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11926780204cbf95cf61b62bd892693067e7368fd7ea1b8ef307a1838fc34436", kill_on_drop: false }`
[INFO] [stdout] 11926780204cbf95cf61b62bd892693067e7368fd7ea1b8ef307a1838fc34436