[INFO] cloning repository https://github.com/tnecio/five_letter_words
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tnecio/five_letter_words" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftnecio%2Ffive_letter_words", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftnecio%2Ffive_letter_words'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cbd28f68e4b69704ebae26325383a17f9a940361
[INFO] testing tnecio/five_letter_words against try#bd7d74411512a3dd3b35d2f699c51dd2557c7e7e+cargoflags=-Zbuild-dir-new-layout for pr-149852-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftnecio%2Ffive_letter_words" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tnecio/five_letter_words
[INFO] finished tweaking git repo https://github.com/tnecio/five_letter_words
[INFO] tweaked toml for git repo https://github.com/tnecio/five_letter_words written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tnecio/five_letter_words on toolchain bd7d74411512a3dd3b35d2f699c51dd2557c7e7e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tnecio/five_letter_words 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" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: target.x86_64-unknown-linux-gnu.linker
[INFO] [stderr] warning: unused manifest key: target.x86_64-unknown-linux-gnu.rustflags
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 52e993f6f78621e73b8776339adfdc316697d9e2d9333ac36727303bf676d933
[INFO] running `Command { std: "docker" "start" "-a" "52e993f6f78621e73b8776339adfdc316697d9e2d9333ac36727303bf676d933", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52e993f6f78621e73b8776339adfdc316697d9e2d9333ac36727303bf676d933", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52e993f6f78621e73b8776339adfdc316697d9e2d9333ac36727303bf676d933", kill_on_drop: false }`
[INFO] [stdout] 52e993f6f78621e73b8776339adfdc316697d9e2d9333ac36727303bf676d933
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "build" "--frozen" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] c3e35204331001128a0af1d50c15cf5bda198eecf5816aadaf8af451bb1232f4
[INFO] running `Command { std: "docker" "start" "-a" "c3e35204331001128a0af1d50c15cf5bda198eecf5816aadaf8af451bb1232f4", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: target.x86_64-unknown-linux-gnu.linker
[INFO] [stderr] warning: unused manifest key: target.x86_64-unknown-linux-gnu.rustflags
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling crossbeam-utils v0.8.12
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.11
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]    Compiling either v1.8.0
[INFO] [stderr]    Compiling ryu v1.0.11
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling encode_unicode v1.0.0
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.6
[INFO] [stderr]    Compiling term v0.7.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.2
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling prettytable-rs v0.9.0
[INFO] [stderr]    Compiling five_letter_words v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated items `from_bool_columns` and `print` are never used
[INFO] [stdout]    --> src/dancing_links_soa.rs:147:8
[INFO] [stdout]     |
[INFO] [stdout]  31 | impl DLMatrix {
[INFO] [stdout]     | ------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 147 |     fn from_bool_columns(columns: &Vec<Vec<bool>>) -> Self {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 412 |     fn print(&self) {
[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 `transpose` is never used
[INFO] [stdout]    --> src/dancing_links_soa.rs:617:4
[INFO] [stdout]     |
[INFO] [stdout] 617 | fn transpose<T>(v: Vec<Vec<T>>) -> Vec<Vec<T>> {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.35s
[INFO] running `Command { std: "docker" "inspect" "c3e35204331001128a0af1d50c15cf5bda198eecf5816aadaf8af451bb1232f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3e35204331001128a0af1d50c15cf5bda198eecf5816aadaf8af451bb1232f4", kill_on_drop: false }`
[INFO] [stdout] c3e35204331001128a0af1d50c15cf5bda198eecf5816aadaf8af451bb1232f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "--no-run" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] 9cf5e107253660adadfd073e438dd690ff5b5659d81c71286d4e3f6af1c1ae8c
[INFO] running `Command { std: "docker" "start" "-a" "9cf5e107253660adadfd073e438dd690ff5b5659d81c71286d4e3f6af1c1ae8c", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: target.x86_64-unknown-linux-gnu.linker
[INFO] [stderr] warning: unused manifest key: target.x86_64-unknown-linux-gnu.rustflags
[INFO] [stderr]    Compiling five_letter_words v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `transpose` is never used
[INFO] [stdout]    --> src/dancing_links_soa.rs:617:4
[INFO] [stdout]     |
[INFO] [stdout] 617 | fn transpose<T>(v: Vec<Vec<T>>) -> Vec<Vec<T>> {
[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 0.90s
[INFO] running `Command { std: "docker" "inspect" "9cf5e107253660adadfd073e438dd690ff5b5659d81c71286d4e3f6af1c1ae8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cf5e107253660adadfd073e438dd690ff5b5659d81c71286d4e3f6af1c1ae8c", kill_on_drop: false }`
[INFO] [stdout] 9cf5e107253660adadfd073e438dd690ff5b5659d81c71286d4e3f6af1c1ae8c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] 2ed7def3ce57c5812550afefdc2ed5ffe97437785e10883327b33517687a5822
[INFO] running `Command { std: "docker" "start" "-a" "2ed7def3ce57c5812550afefdc2ed5ffe97437785e10883327b33517687a5822", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: target.x86_64-unknown-linux-gnu.linker
[INFO] [stderr] warning: unused manifest key: target.x86_64-unknown-linux-gnu.rustflags
[INFO] [stderr] warning: function `transpose` is never used
[INFO] [stderr]    --> src/dancing_links_soa.rs:617:4
[INFO] [stderr]     |
[INFO] [stderr] 617 | fn transpose<T>(v: Vec<Vec<T>>) -> Vec<Vec<T>> {
[INFO] [stderr]     |    ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `five_letter_words` (bin "five_letter_words" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/build/five_letter_words/83bcbec50e56d4a9/deps/five_letter_words-83bcbec50e56d4a9)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test dancing_links_soa::test_create_dlmatrix ... ok
[INFO] [stdout] test dancing_links_soa::test_simple_exact_cover_3el_col ... ok
[INFO] [stderr] error: test failed, to rerun pass `--bin five_letter_words`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/five_letter_words/83bcbec50e56d4a9/deps/five_letter_words-83bcbec50e56d4a9` (signal: 11, SIGSEGV: invalid memory reference)
[INFO] running `Command { std: "docker" "inspect" "2ed7def3ce57c5812550afefdc2ed5ffe97437785e10883327b33517687a5822", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ed7def3ce57c5812550afefdc2ed5ffe97437785e10883327b33517687a5822", kill_on_drop: false }`
[INFO] [stdout] 2ed7def3ce57c5812550afefdc2ed5ffe97437785e10883327b33517687a5822
