[INFO] cloning repository https://github.com/Serene-Arc/cross_stitch_solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Serene-Arc/cross_stitch_solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSerene-Arc%2Fcross_stitch_solver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSerene-Arc%2Fcross_stitch_solver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 41b9cc430de227216b7c7876b4ddc22c9be04d2c
[INFO] testing Serene-Arc/cross_stitch_solver against beta-2026-01-20 for beta-1.94-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSerene-Arc%2Fcross_stitch_solver" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Serene-Arc/cross_stitch_solver
[INFO] finished tweaking git repo https://github.com/Serene-Arc/cross_stitch_solver
[INFO] tweaked toml for git repo https://github.com/Serene-Arc/cross_stitch_solver written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Serene-Arc/cross_stitch_solver on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Serene-Arc/cross_stitch_solver 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-2026-01-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6d9cc4c5ad0de551b991e5667a9131d859dca5ae730c23d60b6f1e89bc38bd9a
[INFO] running `Command { std: "docker" "start" "-a" "6d9cc4c5ad0de551b991e5667a9131d859dca5ae730c23d60b6f1e89bc38bd9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d9cc4c5ad0de551b991e5667a9131d859dca5ae730c23d60b6f1e89bc38bd9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d9cc4c5ad0de551b991e5667a9131d859dca5ae730c23d60b6f1e89bc38bd9a", kill_on_drop: false }`
[INFO] [stdout] 6d9cc4c5ad0de551b991e5667a9131d859dca5ae730c23d60b6f1e89bc38bd9a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 992e4624738b304989c18a10d8ad60789a4cabc2eb5d09a7601ad62a17d6bfc2
[INFO] running `Command { std: "docker" "start" "-a" "992e4624738b304989c18a10d8ad60789a4cabc2eb5d09a7601ad62a17d6bfc2", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling bytemuck v1.14.0
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling miniz_oxide v0.7.1
[INFO] [stderr]    Compiling smallvec v1.11.2
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling matrixmultiply v0.3.8
[INFO] [stderr]    Compiling serde v1.0.192
[INFO] [stderr]    Compiling weezl v0.1.7
[INFO] [stderr]    Compiling anstyle-parse v0.2.2
[INFO] [stderr]    Compiling fdeflate v0.3.1
[INFO] [stderr]    Compiling rayon v1.8.0
[INFO] [stderr]    Compiling hamming v0.1.3
[INFO] [stderr]    Compiling safe_arch v0.7.1
[INFO] [stderr]    Compiling flume v0.11.0
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling half v2.2.1
[INFO] [stderr]    Compiling anstyle v1.0.4
[INFO] [stderr]    Compiling portable-atomic v1.5.1
[INFO] [stderr]    Compiling gif v0.12.0
[INFO] [stderr]    Compiling primal-bit v0.3.1
[INFO] [stderr]    Compiling qoi v0.4.1
[INFO] [stderr]    Compiling anstream v0.6.4
[INFO] [stderr]    Compiling custom_derive v0.1.7
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling unicode-width v0.1.11
[INFO] [stderr]    Compiling clap_lex v0.6.0
[INFO] [stderr]    Compiling primal-estimate v0.3.2
[INFO] [stderr]    Compiling conv v0.3.3
[INFO] [stderr]    Compiling flate2 v1.0.28
[INFO] [stderr]    Compiling primal-sieve v0.3.6
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling wide v0.7.13
[INFO] [stderr]    Compiling exr v1.71.0
[INFO] [stderr]    Compiling clap_builder v4.4.8
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling console v0.15.7
[INFO] [stderr]    Compiling number_prefix v0.4.0
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling png v0.17.10
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling csv-core v0.1.11
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]    Compiling itertools v0.11.0
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-complex v0.4.4
[INFO] [stderr]    Compiling approx v0.5.1
[INFO] [stderr]    Compiling factorial v0.3.0
[INFO] [stderr]    Compiling rand_distr v0.2.2
[INFO] [stderr]    Compiling jpeg-decoder v0.3.0
[INFO] [stderr]    Compiling indicatif v0.17.7
[INFO] [stderr]    Compiling simba v0.7.3
[INFO] [stderr]    Compiling num v0.4.1
[INFO] [stderr]    Compiling tiff v0.9.0
[INFO] [stderr]    Compiling serde_derive v1.0.192
[INFO] [stderr]    Compiling clap_derive v4.4.7
[INFO] [stderr]    Compiling image v0.24.7
[INFO] [stderr]    Compiling clap v4.4.8
[INFO] [stderr]    Compiling nalgebra v0.30.1
[INFO] [stderr]    Compiling serde_test v1.0.176
[INFO] [stderr]    Compiling csv v1.3.0
[INFO] [stderr]    Compiling imageproc v0.23.0
[INFO] [stderr]    Compiling cross_stitch_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `free_elements` is never read
[INFO] [stdout]   --> src/affixed_permutations.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout]  5 | pub struct PrefixedPermutations<T>
[INFO] [stdout]    |            -------------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 11 |     pub free_elements: i64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `verify_stitches_valid` is never used
[INFO] [stdout]    --> src/stitch.rs:180:8
[INFO] [stdout]     |
[INFO] [stdout] 180 | pub fn verify_stitches_valid(stitches: &Vec<HalfStitch>) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 39.44s
[INFO] running `Command { std: "docker" "inspect" "992e4624738b304989c18a10d8ad60789a4cabc2eb5d09a7601ad62a17d6bfc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "992e4624738b304989c18a10d8ad60789a4cabc2eb5d09a7601ad62a17d6bfc2", kill_on_drop: false }`
[INFO] [stdout] 992e4624738b304989c18a10d8ad60789a4cabc2eb5d09a7601ad62a17d6bfc2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b039bd72ca8310628d947d4201975802a0981f946e6e195d4e8890ed5e7b4258
[INFO] running `Command { std: "docker" "start" "-a" "b039bd72ca8310628d947d4201975802a0981f946e6e195d4e8890ed5e7b4258", kill_on_drop: false }`
[INFO] [stderr]    Compiling cross_stitch_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `free_elements` is never read
[INFO] [stdout]   --> src/affixed_permutations.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout]  5 | pub struct PrefixedPermutations<T>
[INFO] [stdout]    |            -------------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 11 |     pub free_elements: i64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.40s
[INFO] running `Command { std: "docker" "inspect" "b039bd72ca8310628d947d4201975802a0981f946e6e195d4e8890ed5e7b4258", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b039bd72ca8310628d947d4201975802a0981f946e6e195d4e8890ed5e7b4258", kill_on_drop: false }`
[INFO] [stdout] b039bd72ca8310628d947d4201975802a0981f946e6e195d4e8890ed5e7b4258
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c6742e05e250abca78015cef8c8e14cc4ba8a1957a7d110fd12b8ac6ce7fe1a3
[INFO] running `Command { std: "docker" "start" "-a" "c6742e05e250abca78015cef8c8e14cc4ba8a1957a7d110fd12b8ac6ce7fe1a3", kill_on_drop: false }`
[INFO] [stderr] warning: field `free_elements` is never read
[INFO] [stderr]   --> src/affixed_permutations.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr]  5 | pub struct PrefixedPermutations<T>
[INFO] [stderr]    |            -------------------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 11 |     pub free_elements: i64,
[INFO] [stderr]    |         ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `cross_stitch_solver` (bin "cross_stitch_solver" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/cross_stitch_solver-836475cb6411faf3)
[INFO] [stdout] 
[INFO] [stdout] running 35 tests
[INFO] [stdout] test affixed_permutations::test::test_permutation_generation_first_element_consistent ... ok
[INFO] [stdout] test affixed_permutations::test::test_permutation_generation_specific_permutation_kick ... ok
[INFO] [stdout] test csv_reader::test::test_normalise_single_stitch_negative_x ... ok
[INFO] [stdout] test affixed_permutations::test::test_permutation_generation_specific_permutation_base ... ok
[INFO] [stdout] test csv_reader::test::test_normalise_single_stitch_negative_x_y ... ok
[INFO] [stdout] test csv_reader::test::test_normalise_single_stitch_positive ... ok
[INFO] [stdout] test csv_reader::test::test_normalise_three_stitches_triangle ... ok
[INFO] [stdout] test affixed_permutations::test::test_permutation_generation_first_element_not_consistent ... ok
[INFO] [stdout] test csv_reader::test::test_normalise_two_stitches_negative_x ... ok
[INFO] [stdout] test csv_reader::test::test_normalise_single_stitch_negative_y ... ok
[INFO] [stdout] test csv_reader::test::test_normalise_single_stitch_positive_uneven ... ok
[INFO] [stdout] test csv_reader::test::test_normalise_two_stitches_negative_x_y ... ok
[INFO] [stdout] test csv_reader::test::test_normalise_two_stitches_positive ... ok
[INFO] [stdout] test stitch::tests::test_check_stitches_invalid_location_sequence ... ok
[INFO] [stdout] test stitch::tests::test_check_stitches_valid_row_kick_2 ... ok
[INFO] [stdout] test stitch::tests::test_check_stitches_valid_kick ... ok
[INFO] [stdout] test stitch::tests::test_check_stitches_valid_single_full ... ok
[INFO] [stdout] test stitch::tests::test_check_stitches_valid_single_full_reverse ... ok
[INFO] [stdout] test stitch::tests::test_distance_location_straight ... ok
[INFO] [stdout] test stitch::tests::test_distance_one_stitch_different_end ... ok
[INFO] [stdout] test stitch::tests::test_distance_one_stitch_different_end_long ... ok
[INFO] [stdout] test stitch::tests::test_distance_one_stitch ... ok
[INFO] [stdout] test stitch::tests::test_distance_three_stitches ... ok
[INFO] [stdout] test stitch::tests::test_check_stitches_valid_two_full ... ok
[INFO] [stdout] test stitch::tests::test_distance_half_series ... ok
[INFO] [stdout] test stitch::tests::test_check_stitches_valid_row_kick ... ok
[INFO] [stdout] test stitch::tests::test_distance_location_diagonal_one ... ok
[INFO] [stdout] test csv_reader::test::test_normalise_two_stitches_positive_uneven ... ok
[INFO] [stdout] test stitch::tests::test_distance_two_stitches ... ok
[INFO] [stdout] test stitch::tests::test_distance_two_stitches_different_end ... ok
[INFO] [stdout] test stitch::tests::test_end_half_stitch_end_location_left ... ok
[INFO] [stdout] test stitch::tests::test_end_half_stitch_end_location_right ... ok
[INFO] [stdout] test stitch::tests::test_distance_location_straight_two ... ok
[INFO] [stdout] test csv_reader::test::test_normalise_two_stitches_negative_y ... ok
[INFO] [stdout] test csv_writer::test::test_write ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- csv_writer::test::test_write stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'csv_writer::test::test_write' (40) panicked at src/csv_writer.rs:6:51:
[INFO] [stdout] Make CSV writer: Error(Io(Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }))
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5a8567a09722 - std::backtrace_rs::backtrace::libunwind::trace::hf0bd46b30bc61685
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5a8567a09722 - std::backtrace_rs::backtrace::trace_unsynchronized::h1d1fbb72ad89d7b7
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5a8567a09722 - std::sys::backtrace::_print_fmt::he38b6f68ca847f47
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5a8567a09722 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hb7e843cde1bc81a3
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5a8567a19d6a - core::fmt::rt::Argument::fmt::hc1dd77ac64f2688c
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5a8567a19d6a - core::fmt::write::h952c506e2dbe9cff
[INFO] [stdout]    6:     0x5a85679d8406 - std::io::default_write_fmt::hd23bd8145c03a23a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5a85679d8406 - std::io::Write::write_fmt::hdd3314a2bd8a34bd
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x5a85679e8b29 - std::sys::backtrace::BacktraceLock::print::h1079b82381c2c252
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5a85679e8b29 - std::panicking::default_hook::{{closure}}::h85cb76b8462c00f2
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5a85679e89c1 - std::panicking::default_hook::h0134d220cc034c02
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5a85679a27ee - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hb2e68dca3970e3ca
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x5a85679a27ee - test::test_main_with_exit_callback::{{closure}}::ha7ec2063a2565ec3
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5a85679e8da2 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::haebee478d0f56cf4
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x5a85679e8da2 - std::panicking::panic_with_hook::h8119b6db1fef734f
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x5a85679e8be8 - std::panicking::panic_handler::{{closure}}::h24f5360b91482c0e
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x5a85679e4119 - std::sys::backtrace::__rust_end_short_backtrace::h4e60c5cbd1bd0108
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5a85679ccffd - __rustc[e4c6931bd8050421]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x5a8567a2284c - core::panicking::panic_fmt::hb1614a3ff6840071
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5a8567a22092 - core::result::unwrap_failed::h7d4c34940aded59c
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/result.rs:1867:5
[INFO] [stdout]   20:     0x5a856796f283 - core::result::Result<T,E>::expect::h290fbc7a962599ea
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/result.rs:1185:23
[INFO] [stdout]   21:     0x5a856796d15a - cross_stitch_solver::csv_writer::write_solved_sequence_to_file::he5d666f9e5f0fd8e
[INFO] [stdout]                                at /opt/rustwide/workdir/src/csv_writer.rs:6:51
[INFO] [stdout]   22:     0x5a8567971cfe - cross_stitch_solver::csv_writer::test::test_write::h0ed39d5d5da16966
[INFO] [stdout]                                at /opt/rustwide/workdir/src/csv_writer.rs:22:9
[INFO] [stdout]   23:     0x5a8567971dc7 - cross_stitch_solver::csv_writer::test::test_write::{{closure}}::h897d12d1b5496f3b
[INFO] [stdout]                                at /opt/rustwide/workdir/src/csv_writer.rs:19:20
[INFO] [stdout]   24:     0x5a8567973a46 - core::ops::function::FnOnce::call_once::hce5732a2ae5abde0
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x5a85679a25eb - core::ops::function::FnOnce::call_once::hefaf63600cd43d2a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   26:     0x5a85679a25eb - test::__rust_begin_short_backtrace::he30322a73a0e9ea6
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:663:18
[INFO] [stdout]   27:     0x5a85679b5fba - test::run_test_in_process::{{closure}}::hdea3ab8d0243ef36
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:686:74
[INFO] [stdout]   28:     0x5a85679b5fba - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h66d192f42498ffce
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   29:     0x5a85679b5fba - std::panicking::catch_unwind::do_call::h822e18e8d3a6bb65
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:581:40
[INFO] [stdout]   30:     0x5a85679b5fba - std::panicking::catch_unwind::h54b1de7ceab578bf
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:544:19
[INFO] [stdout]   31:     0x5a85679b5fba - std::panic::catch_unwind::h60c29b7a9d0246b1
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panic.rs:359:14
[INFO] [stdout]   32:     0x5a85679b5fba - test::run_test_in_process::h6099b5f871379b13
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:686:27
[INFO] [stdout]   33:     0x5a85679b5fba - test::run_test::{{closure}}::h926ce0a38281a4c8
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:607:43
[INFO] [stdout]   34:     0x5a8567990414 - test::run_test::{{closure}}::h508de21a9afc7140
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:637:41
[INFO] [stdout]   35:     0x5a8567990414 - std::sys::backtrace::__rust_begin_short_backtrace::h6e2f5c39ca00735a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   36:     0x5a8567993cd2 - std::thread::lifecycle::spawn_unchecked::{{closure}}::{{closure}}::h133e44f0e5802c14
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   37:     0x5a8567993cd2 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h4718c1285283955c
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   38:     0x5a8567993cd2 - std::panicking::catch_unwind::do_call::h0bba3937b4892238
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:581:40
[INFO] [stdout]   39:     0x5a8567993cd2 - std::panicking::catch_unwind::h5b31cab5fb8c5d7f
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:544:19
[INFO] [stdout]   40:     0x5a8567993cd2 - std::panic::catch_unwind::hb2fa05d52ed0124e
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panic.rs:359:14
[INFO] [stdout]   41:     0x5a8567993cd2 - std::thread::lifecycle::spawn_unchecked::{{closure}}::hf401cf5ff501bd29
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   42:     0x5a8567993cd2 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h160022e94ce3b0bb
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   43:     0x5a85679df2ff - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf234e0d1d1d272ba
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   44:     0x5a85679df2ff - std::sys::thread::unix::Thread::new::thread_start::h106a295241840d3b
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/thread/unix.rs:127:17
[INFO] [stdout]   45:     0x77dc033dcaa4 - <unknown>
[INFO] [stdout]   46:     0x77dc03469a64 - clone
[INFO] [stdout]   47:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     csv_writer::test::test_write
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 34 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.12s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin cross_stitch_solver`
[INFO] running `Command { std: "docker" "inspect" "c6742e05e250abca78015cef8c8e14cc4ba8a1957a7d110fd12b8ac6ce7fe1a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6742e05e250abca78015cef8c8e14cc4ba8a1957a7d110fd12b8ac6ce7fe1a3", kill_on_drop: false }`
[INFO] [stdout] c6742e05e250abca78015cef8c8e14cc4ba8a1957a7d110fd12b8ac6ce7fe1a3
