[INFO] cloning repository https://github.com/marcbreitung/markov-process
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/marcbreitung/markov-process" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarcbreitung%2Fmarkov-process", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarcbreitung%2Fmarkov-process'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] df56210cf17c763057789dd89f12e982895adc78
[INFO] testing marcbreitung/markov-process against beta-2026-04-21 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarcbreitung%2Fmarkov-process" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/marcbreitung/markov-process
[INFO] finished tweaking git repo https://github.com/marcbreitung/markov-process
[INFO] tweaked toml for git repo https://github.com/marcbreitung/markov-process written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/marcbreitung/markov-process on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/marcbreitung/markov-process 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 69f26f0e31d01ea40c91abc12360bd20098d2ea5d3473ba18d38ee34b2fd03ed
[INFO] running `Command { std: "docker" "start" "-a" "69f26f0e31d01ea40c91abc12360bd20098d2ea5d3473ba18d38ee34b2fd03ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "69f26f0e31d01ea40c91abc12360bd20098d2ea5d3473ba18d38ee34b2fd03ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69f26f0e31d01ea40c91abc12360bd20098d2ea5d3473ba18d38ee34b2fd03ed", kill_on_drop: false }`
[INFO] [stdout] 69f26f0e31d01ea40c91abc12360bd20098d2ea5d3473ba18d38ee34b2fd03ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 765c08dd0c46998bc550876e542ee9cc2a26b3b29dd9001da27cd2490ef091b5
[INFO] running `Command { std: "docker" "start" "-a" "765c08dd0c46998bc550876e542ee9cc2a26b3b29dd9001da27cd2490ef091b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling libc v0.2.57
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling libm v0.1.3
[INFO] [stderr]    Compiling rawpointer v0.1.0
[INFO] [stderr]    Compiling matrixmultiply v0.2.2
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling generic-array v0.12.0
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling alga v0.9.1
[INFO] [stderr]    Compiling nalgebra v0.18.0
[INFO] [stderr]    Compiling markov-process v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/markov_chain.rs:124:27
[INFO] [stdout]     |
[INFO] [stdout] 124 |             .map(|(k, _)| (self.state_map.get(&k).unwrap().to_string()))
[INFO] [stdout]     |                           ^                                           ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 124 -             .map(|(k, _)| (self.state_map.get(&k).unwrap().to_string()))
[INFO] [stdout] 124 +             .map(|(k, _)| self.state_map.get(&k).unwrap().to_string() )
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.76s
[INFO] running `Command { std: "docker" "inspect" "765c08dd0c46998bc550876e542ee9cc2a26b3b29dd9001da27cd2490ef091b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "765c08dd0c46998bc550876e542ee9cc2a26b3b29dd9001da27cd2490ef091b5", kill_on_drop: false }`
[INFO] [stdout] 765c08dd0c46998bc550876e542ee9cc2a26b3b29dd9001da27cd2490ef091b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3cf2ca380f2005a6ad3957da125c0af189df90038eb75f0c08eaad0ad2b40e39
[INFO] running `Command { std: "docker" "start" "-a" "3cf2ca380f2005a6ad3957da125c0af189df90038eb75f0c08eaad0ad2b40e39", kill_on_drop: false }`
[INFO] [stderr]    Compiling markov-process v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/markov_chain.rs:124:27
[INFO] [stdout]     |
[INFO] [stdout] 124 |             .map(|(k, _)| (self.state_map.get(&k).unwrap().to_string()))
[INFO] [stdout]     |                           ^                                           ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 124 -             .map(|(k, _)| (self.state_map.get(&k).unwrap().to_string()))
[INFO] [stdout] 124 +             .map(|(k, _)| self.state_map.get(&k).unwrap().to_string() )
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "3cf2ca380f2005a6ad3957da125c0af189df90038eb75f0c08eaad0ad2b40e39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cf2ca380f2005a6ad3957da125c0af189df90038eb75f0c08eaad0ad2b40e39", kill_on_drop: false }`
[INFO] [stdout] 3cf2ca380f2005a6ad3957da125c0af189df90038eb75f0c08eaad0ad2b40e39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2bf6c255ab6921386e95084bbee6b418de43c56e58e762d3d5522f776e4c1b6e
[INFO] running `Command { std: "docker" "start" "-a" "2bf6c255ab6921386e95084bbee6b418de43c56e58e762d3d5522f776e4c1b6e", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]    --> src/markov_chain.rs:124:27
[INFO] [stderr]     |
[INFO] [stderr] 124 |             .map(|(k, _)| (self.state_map.get(&k).unwrap().to_string()))
[INFO] [stderr]     |                           ^                                           ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 124 -             .map(|(k, _)| (self.state_map.get(&k).unwrap().to_string()))
[INFO] [stderr] 124 +             .map(|(k, _)| self.state_map.get(&k).unwrap().to_string() )
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `markov-process` (bin "markov-process" test) generated 1 warning (run `cargo fix --bin "markov-process" -p markov-process --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/markov_process-00f6096d86382ff8)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test markov_chain::tests::is_reducible ... ok
[INFO] [stdout] test markov_chain::tests::is_irreducible ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2bf6c255ab6921386e95084bbee6b418de43c56e58e762d3d5522f776e4c1b6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bf6c255ab6921386e95084bbee6b418de43c56e58e762d3d5522f776e4c1b6e", kill_on_drop: false }`
[INFO] [stdout] 2bf6c255ab6921386e95084bbee6b418de43c56e58e762d3d5522f776e4c1b6e
