[INFO] fetching crate sudoku-variants 0.2.1...
[INFO] building sudoku-variants-0.2.1 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate sudoku-variants 0.2.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate sudoku-variants 0.2.1
[INFO] finished tweaking crates.io crate sudoku-variants 0.2.1
[INFO] tweaked toml for crates.io crate sudoku-variants 0.2.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sudoku-variants 0.2.1 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 73 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.3.6 (available: v0.7.0)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] [stderr]       Adding rand_chacha v0.3.1 (available: v0.9.0)
[INFO] [stderr]       Adding toml v0.5.11 (available: v0.9.7)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9e6a05b6c2f419aa002ae41c2b69ca78e3a0591cc29dd72da882a87fccc135b8
[INFO] running `Command { std: "docker" "start" "-a" "9e6a05b6c2f419aa002ae41c2b69ca78e3a0591cc29dd72da882a87fccc135b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e6a05b6c2f419aa002ae41c2b69ca78e3a0591cc29dd72da882a87fccc135b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e6a05b6c2f419aa002ae41c2b69ca78e3a0591cc29dd72da882a87fccc135b8", kill_on_drop: false }`
[INFO] [stdout] 9e6a05b6c2f419aa002ae41c2b69ca78e3a0591cc29dd72da882a87fccc135b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73a4cf08072fb664c04c3f4d77a80e374455b60a6270675407e74f9e40956f7b
[INFO] running `Command { std: "docker" "start" "-a" "73a4cf08072fb664c04c3f4d77a80e374455b60a6270675407e74f9e40956f7b", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling sudoku-variants v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]    --> src/util.rs:108:31
[INFO] [stdout]     |
[INFO] [stdout] 108 | const USIZE_BIT_SIZE: usize = mem::size_of::<usize>() * 8;
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:8:9
[INFO] [stdout]     |
[INFO] [stdout]   8 | #![warn(unused_qualifications)]
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 108 - const USIZE_BIT_SIZE: usize = mem::size_of::<usize>() * 8;
[INFO] [stdout] 108 + const USIZE_BIT_SIZE: usize = size_of::<usize>() * 8;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.63s
[INFO] running `Command { std: "docker" "inspect" "73a4cf08072fb664c04c3f4d77a80e374455b60a6270675407e74f9e40956f7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73a4cf08072fb664c04c3f4d77a80e374455b60a6270675407e74f9e40956f7b", kill_on_drop: false }`
[INFO] [stdout] 73a4cf08072fb664c04c3f4d77a80e374455b60a6270675407e74f9e40956f7b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25cf13700f975ff7aeee9db75d1b466f9c918627645d6d6c2bac360e5ab3ec74
[INFO] running `Command { std: "docker" "start" "-a" "25cf13700f975ff7aeee9db75d1b466f9c918627645d6d6c2bac360e5ab3ec74", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling cfg-if v1.0.3
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling ryu v1.0.20
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling itoa v1.0.15
[INFO] [stderr]    Compiling regex-syntax v0.8.6
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling plotters-backend v0.3.7
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling unicode-width v0.1.14
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling half v1.8.3
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling oorandom v11.1.5
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling plotters-svg v0.3.7
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling csv-core v0.1.12
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling regex-automata v0.4.11
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling criterion-plot v0.4.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling regex v1.11.3
[INFO] [stderr]    Compiling csv v1.3.1
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]    Compiling sudoku-variants v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]    --> src/util.rs:108:31
[INFO] [stdout]     |
[INFO] [stdout] 108 | const USIZE_BIT_SIZE: usize = mem::size_of::<usize>() * 8;
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:8:9
[INFO] [stdout]     |
[INFO] [stdout]   8 | #![warn(unused_qualifications)]
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 108 - const USIZE_BIT_SIZE: usize = mem::size_of::<usize>() * 8;
[INFO] [stdout] 108 + const USIZE_BIT_SIZE: usize = size_of::<usize>() * 8;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `regex-automata` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/bin/rustc --crate-name regex_automata --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/regex-automata-0.4.11/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C opt-level=2 -C embed-bitcode=no -C debuginfo=2 -C debug-assertions=on --cfg 'feature="alloc"' --cfg 'feature="meta"' --cfg 'feature="nfa-pikevm"' --cfg 'feature="nfa-thompson"' --cfg 'feature="std"' --cfg 'feature="syntax"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("alloc", "default", "dfa", "dfa-build", "dfa-onepass", "dfa-search", "hybrid", "internal-instrument", "internal-instrument-pikevm", "logging", "meta", "nfa", "nfa-backtrack", "nfa-pikevm", "nfa-thompson", "perf", "perf-inline", "perf-literal", "perf-literal-multisubstring", "perf-literal-substring", "std", "syntax", "unicode", "unicode-age", "unicode-bool", "unicode-case", "unicode-gencat", "unicode-perl", "unicode-script", "unicode-segment", "unicode-word-boundary"))' -C metadata=e780382556ebed95 -C extra-filename=-d6da206eca9c88d8 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern regex_syntax=/opt/rustwide/target/debug/deps/libregex_syntax-a2e9511126e39d90.rmeta --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" "25cf13700f975ff7aeee9db75d1b466f9c918627645d6d6c2bac360e5ab3ec74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25cf13700f975ff7aeee9db75d1b466f9c918627645d6d6c2bac360e5ab3ec74", kill_on_drop: false }`
[INFO] [stdout] 25cf13700f975ff7aeee9db75d1b466f9c918627645d6d6c2bac360e5ab3ec74