[INFO] cloning repository https://github.com/KaiserLancelot/rust-learning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KaiserLancelot/rust-learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKaiserLancelot%2Frust-learning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKaiserLancelot%2Frust-learning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 559ca5c9f595a1a7d2f76af63c44427e61a30387
[INFO] testing KaiserLancelot/rust-learning against master#d3515155216e98c23440ea92c3f49c6a0d7101fc for pr-113843
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKaiserLancelot%2Frust-learning" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KaiserLancelot/rust-learning on toolchain d3515155216e98c23440ea92c3f49c6a0d7101fc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d3515155216e98c23440ea92c3f49c6a0d7101fc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/KaiserLancelot/rust-learning
[INFO] finished tweaking git repo https://github.com/KaiserLancelot/rust-learning
[INFO] tweaked toml for git repo https://github.com/KaiserLancelot/rust-learning written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/KaiserLancelot/rust-learning 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" "+d3515155216e98c23440ea92c3f49c6a0d7101fc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: some crates are on edition 2021 which defaults to `resolver = "2"`, but virtual workspaces default to `resolver = "1"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded atoi v0.3.3
[INFO] [stderr]   Downloaded nutype_macros v0.3.1
[INFO] [stderr]   Downloaded snmalloc-rs v0.3.4
[INFO] [stderr]   Downloaded nutype v0.3.1
[INFO] [stderr]   Downloaded mini-redis v0.4.1
[INFO] [stderr]   Downloaded snmalloc-sys v0.3.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+d3515155216e98c23440ea92c3f49c6a0d7101fc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3e0bbe43fd24580bc9c35d908290959c6b7036837d551fc33b74abef4356c53c
[INFO] running `Command { std: "docker" "start" "-a" "3e0bbe43fd24580bc9c35d908290959c6b7036837d551fc33b74abef4356c53c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e0bbe43fd24580bc9c35d908290959c6b7036837d551fc33b74abef4356c53c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e0bbe43fd24580bc9c35d908290959c6b7036837d551fc33b74abef4356c53c", kill_on_drop: false }`
[INFO] [stdout] 3e0bbe43fd24580bc9c35d908290959c6b7036837d551fc33b74abef4356c53c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+d3515155216e98c23440ea92c3f49c6a0d7101fc" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5224225a7fb10ffda72c14f8e2645ecad447bf994a1656f581902f62a2ab30a6
[INFO] running `Command { std: "docker" "start" "-a" "5224225a7fb10ffda72c14f8e2645ecad447bf994a1656f581902f62a2ab30a6", kill_on_drop: false }`
[INFO] [stderr] warning: some crates are on edition 2021 which defaults to `resolver = "2"`, but virtual workspaces default to `resolver = "1"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]    Compiling proc-macro2 v1.0.65
[INFO] [stderr]    Compiling quote v1.0.30
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling smallvec v1.11.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]    Compiling pin-project-lite v0.2.10
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling serde v1.0.171
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling itoa v1.0.9
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling serde_json v1.0.103
[INFO] [stderr]    Compiling tracing-core v0.1.31
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling regex-syntax v0.7.4
[INFO] [stderr]    Compiling log v0.4.19
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling tokio v1.29.1
[INFO] [stderr]    Compiling cmake v0.1.50
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling tracing-log v0.1.3
[INFO] [stderr]    Compiling thread_local v1.1.7
[INFO] [stderr]    Compiling sharded-slab v0.1.4
[INFO] [stderr]    Compiling ryu v1.0.15
[INFO] [stderr]    Compiling crossbeam-queue v0.3.8
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling syn v2.0.26
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling socket2 v0.4.9
[INFO] [stderr]    Compiling mio v0.8.8
[INFO] [stderr]    Compiling signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling snmalloc-sys v0.3.4
[INFO] [stderr]    Compiling bytes v1.4.0
[INFO] [stderr]    Compiling regex-automata v0.3.3
[INFO] [stderr]    Compiling iana-time-zone v0.1.57
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling num_threads v0.1.6
[INFO] [stderr]    Compiling overload v0.1.1
[INFO] [stderr]    Compiling chrono v0.4.26
[INFO] [stderr]    Compiling time-core v0.1.1
[INFO] [stderr]    Compiling nu-ansi-term v0.46.0
[INFO] [stderr]    Compiling time v0.3.23
[INFO] [stderr]    Compiling atoi v0.3.3
[INFO] [stderr]    Compiling crossbeam-deque v0.8.3
[INFO] [stderr]    Compiling crossbeam-channel v0.5.8
[INFO] [stderr]    Compiling hashbrown v0.14.0
[INFO] [stderr]    Compiling hello_macro v0.1.0 (/opt/rustwide/workdir/trpl/chapter19/hello_macro)
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling itertools v0.11.0
[INFO] [stderr]    Compiling dashmap v5.5.0
[INFO] [stderr]    Compiling crossbeam v0.8.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling exitcode v1.1.2
[INFO] [stderr]    Compiling chapter20 v0.1.0 (/opt/rustwide/workdir/trpl/chapter20)
[INFO] [stderr]    Compiling chapter12 v0.1.0 (/opt/rustwide/workdir/trpl/chapter12)
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling tracing-subscriber v0.3.17
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling chapter07 v0.1.0 (/opt/rustwide/workdir/trpl/chapter07)
[INFO] [stderr]    Compiling regex v1.9.1
[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/d3515155216e98c23440ea92c3f49c6a0d7101fc/bin/rustc --crate-name regex_syntax --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-syntax-0.6.29/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 -C debuginfo=2 --cfg 'feature="default"' --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"' -C metadata=a5f2842779e800e4 -C extra-filename=-a5f2842779e800e4 --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" "5224225a7fb10ffda72c14f8e2645ecad447bf994a1656f581902f62a2ab30a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5224225a7fb10ffda72c14f8e2645ecad447bf994a1656f581902f62a2ab30a6", kill_on_drop: false }`
[INFO] [stdout] 5224225a7fb10ffda72c14f8e2645ecad447bf994a1656f581902f62a2ab30a6