[INFO] cloning repository https://github.com/Dzejkop/rust-challenges
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Dzejkop/rust-challenges" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDzejkop%2Frust-challenges", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDzejkop%2Frust-challenges'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 32b06b36a8ae04d9f15fedd0abfde1d3195ca350
[INFO] testing Dzejkop/rust-challenges against beta-2025-09-21 for beta-1.91-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDzejkop%2Frust-challenges" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Dzejkop/rust-challenges
[INFO] finished tweaking git repo https://github.com/Dzejkop/rust-challenges
[INFO] tweaked toml for git repo https://github.com/Dzejkop/rust-challenges written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Dzejkop/rust-challenges on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Dzejkop/rust-challenges 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-2025-09-21" "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" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e545e88671cc80a53751766964111ca5f6d4afdbb65a0bf55b981a0c94263e8a
[INFO] running `Command { std: "docker" "start" "-a" "e545e88671cc80a53751766964111ca5f6d4afdbb65a0bf55b981a0c94263e8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e545e88671cc80a53751766964111ca5f6d4afdbb65a0bf55b981a0c94263e8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e545e88671cc80a53751766964111ca5f6d4afdbb65a0bf55b981a0c94263e8a", kill_on_drop: false }`
[INFO] [stdout] e545e88671cc80a53751766964111ca5f6d4afdbb65a0bf55b981a0c94263e8a
[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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 65be4e39696b79e2ce29e51e467082fd2cf2321fe248098b98280838b754ecca
[INFO] running `Command { std: "docker" "start" "-a" "65be4e39696b79e2ce29e51e467082fd2cf2321fe248098b98280838b754ecca", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling proc-macro2 v1.0.85
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.14
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling cc v1.0.98
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling futures-core v0.3.30
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling futures-sink v0.3.30
[INFO] [stderr]    Compiling utf8parse v0.2.1
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling anstyle-parse v0.2.4
[INFO] [stderr]    Compiling thread_local v1.1.8
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling anstyle v1.0.7
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling anstyle-query v1.1.0
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.0
[INFO] [stderr]    Compiling colorchoice v1.0.1
[INFO] [stderr]    Compiling mio v0.8.11
[INFO] [stderr]    Compiling anstream v0.6.14
[INFO] [stderr]    Compiling syn v2.0.66
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling socket2 v0.5.7
[INFO] [stderr]    Compiling tracing-subscriber v0.3.18
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling futures-channel v0.3.30
[INFO] [stderr]    Compiling backtrace v0.3.71
[INFO] [stderr]    Compiling bytes v1.6.0
[INFO] [stderr]    Compiling gimli v0.28.1
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-task v0.3.30
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling futures-io v0.3.30
[INFO] [stderr]    Compiling eyre v0.6.12
[INFO] [stderr]    Compiling portable-atomic v1.6.0
[INFO] [stderr]    Compiling clap_lex v0.7.0
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling miniz_oxide v0.7.3
[INFO] [stderr]    Compiling clap_builder v4.5.2
[INFO] [stderr]    Compiling ring v0.17.8
[INFO] [stderr]    Compiling object v0.32.2
[INFO] [stderr]    Compiling unicode-width v0.1.13
[INFO] [stderr]    Compiling rustc-demangle v0.1.24
[INFO] [stderr]    Compiling indenter v0.3.3
[INFO] [stderr]    Compiling tracing-error v0.2.0
[INFO] [stderr]    Compiling owo-colors v3.5.0
[INFO] [stderr]    Compiling color-spantrace v0.2.1
[INFO] [stderr]    Compiling console v0.15.8
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling untrusted v0.9.0
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling number_prefix v0.4.0
[INFO] [stderr]    Compiling c02 v0.1.0 (/opt/rustwide/workdir/challenges/c02)
[INFO] [stderr]    Compiling indicatif v0.17.8
[INFO] [stderr]    Compiling addr2line v0.21.0
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling tokio-macros v2.3.0
[INFO] [stderr]    Compiling clap_derive v4.5.4
[INFO] [stderr]    Compiling tokio v1.38.0
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling color-eyre v0.6.3
[INFO] [stderr]    Compiling clap v4.5.4
[INFO] [stderr]    Compiling c03 v0.1.0 (/opt/rustwide/workdir/challenges/c03)
[INFO] [stderr]    Compiling futures-executor v0.3.30
[INFO] [stderr]    Compiling futures v0.3.30
[INFO] [stderr]    Compiling tokio-stream v0.1.15
[INFO] [stderr]    Compiling tokio-util v0.7.11
[INFO] [stderr]    Compiling c01 v0.1.0 (/opt/rustwide/workdir/challenges/c01)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 00s
[INFO] running `Command { std: "docker" "inspect" "65be4e39696b79e2ce29e51e467082fd2cf2321fe248098b98280838b754ecca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65be4e39696b79e2ce29e51e467082fd2cf2321fe248098b98280838b754ecca", kill_on_drop: false }`
[INFO] [stdout] 65be4e39696b79e2ce29e51e467082fd2cf2321fe248098b98280838b754ecca
[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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88dd8cebe6b9d36db44db35fbae95e74ad2bfdd14362fea239b7b1c79d52fe21
[INFO] running `Command { std: "docker" "start" "-a" "88dd8cebe6b9d36db44db35fbae95e74ad2bfdd14362fea239b7b1c79d52fe21", kill_on_drop: false }`
[INFO] [stderr]    Compiling c03 v0.1.0 (/opt/rustwide/workdir/challenges/c03)
[INFO] [stderr]    Compiling c01 v0.1.0 (/opt/rustwide/workdir/challenges/c01)
[INFO] [stderr]    Compiling c02 v0.1.0 (/opt/rustwide/workdir/challenges/c02)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "88dd8cebe6b9d36db44db35fbae95e74ad2bfdd14362fea239b7b1c79d52fe21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88dd8cebe6b9d36db44db35fbae95e74ad2bfdd14362fea239b7b1c79d52fe21", kill_on_drop: false }`
[INFO] [stdout] 88dd8cebe6b9d36db44db35fbae95e74ad2bfdd14362fea239b7b1c79d52fe21
[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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2d8aebefd2882b49abfc9524b0634758e92eaf94621be7a24c06d41680629e8f
[INFO] running `Command { std: "docker" "start" "-a" "2d8aebefd2882b49abfc9524b0634758e92eaf94621be7a24c06d41680629e8f", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/c01-27d0213c77b5f8d1)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/c02-bc02440bdd8061f5)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stderr] error: test failed, to rerun pass `-p c02 --lib`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/c02-bc02440bdd8061f5` (signal: 11, SIGSEGV: invalid memory reference)
[INFO] running `Command { std: "docker" "inspect" "2d8aebefd2882b49abfc9524b0634758e92eaf94621be7a24c06d41680629e8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d8aebefd2882b49abfc9524b0634758e92eaf94621be7a24c06d41680629e8f", kill_on_drop: false }`
[INFO] [stdout] 2d8aebefd2882b49abfc9524b0634758e92eaf94621be7a24c06d41680629e8f
