[INFO] cloning repository https://github.com/urbanslug/wfilter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/urbanslug/wfilter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Furbanslug%2Fwfilter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Furbanslug%2Fwfilter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f85f8d0c7e264516d7dbc736810db27e80568afc
[INFO] checking urbanslug/wfilter against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Furbanslug%2Fwfilter" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/urbanslug/wfilter on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/urbanslug/wfilter
[INFO] finished tweaking git repo https://github.com/urbanslug/wfilter
[INFO] tweaked toml for git repo https://github.com/urbanslug/wfilter written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/urbanslug/wfilter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 51483841294d0947083fdbb5a28b0e377afeeee461fe00a171cef2e64438d9c4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "51483841294d0947083fdbb5a28b0e377afeeee461fe00a171cef2e64438d9c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51483841294d0947083fdbb5a28b0e377afeeee461fe00a171cef2e64438d9c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51483841294d0947083fdbb5a28b0e377afeeee461fe00a171cef2e64438d9c4", kill_on_drop: false }`
[INFO] [stdout] 51483841294d0947083fdbb5a28b0e377afeeee461fe00a171cef2e64438d9c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da8b013bac5fadec1a9b3b9d8197cc5bc961a0dd0c53c39fa42c7ccbc7256ebe
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "da8b013bac5fadec1a9b3b9d8197cc5bc961a0dd0c53c39fa42c7ccbc7256ebe", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]     Checking coitrees v0.2.1
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling clang-sys v0.29.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling bindgen v0.53.3
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling libwfa v0.1.2
[INFO] [stderr]     Checking wfilter v0.0.1-alpha (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant is never used: `VERBOSITY_LEVEL`
[INFO] [stdout]  --> src/wflambda/wfa.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | const VERBOSITY_LEVEL: usize = 1;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Alignment`
[INFO] [stdout]   --> src/wflambda/wfa.rs:87:16
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub struct Alignment {
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/wflambda/wfa.rs:101:16
[INFO] [stdout]     |
[INFO] [stdout] 101 |         pub fn new(offset_len: usize) -> Self {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/wflambda/wfa.rs:117:16
[INFO] [stdout]     |
[INFO] [stdout] 117 |         pub fn new(offset_len: usize) -> Self {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `central_diagonal`
[INFO] [stdout]    --> src/wflambda/wfa.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |         central_diagonal: usize, // k_zero
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `max_diagonal`
[INFO] [stdout]    --> src/wflambda/wfa.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |         max_diagonal: usize,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/wflambda/wfa.rs:142:16
[INFO] [stdout]     |
[INFO] [stdout] 142 |         pub fn new(query: &'a[u8], text: &'a[u8]) -> Self {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_wavefront_mut`
[INFO] [stdout]    --> src/wflambda/wfa.rs:170:16
[INFO] [stdout]     |
[INFO] [stdout] 170 |         pub fn get_wavefront_mut(&mut self, score: usize) -> Option<&mut WavefrontSet> {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `print`
[INFO] [stdout]    --> src/wflambda/wfa.rs:174:16
[INFO] [stdout]     |
[INFO] [stdout] 174 |         pub fn print(&self) {
[INFO] [stdout]     |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `wf_extend`
[INFO] [stdout]    --> src/wflambda/wfa.rs:212:4
[INFO] [stdout]     |
[INFO] [stdout] 212 | fn wf_extend<T>(mwavefront: &mut Wavefront,
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `wf_next`
[INFO] [stdout]    --> src/wflambda/wfa.rs:242:4
[INFO] [stdout]     |
[INFO] [stdout] 242 | fn wf_next(wavefronts: &mut Wavefronts, score: usize) {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `wf_align`
[INFO] [stdout]    --> src/wflambda/wfa.rs:316:4
[INFO] [stdout]     |
[INFO] [stdout] 316 | fn wf_align(text: &[u8], query: &[u8]) -> Alignment {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MISMATCH_SCORE`
[INFO] [stdout]  --> src/wflambda/needleman_wunsch.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | const MISMATCH_SCORE: i32 = -1;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `GAP_SCORE`
[INFO] [stdout]  --> src/wflambda/needleman_wunsch.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | const GAP_SCORE: i32 = -2;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MATCH_SCORE`
[INFO] [stdout]  --> src/wflambda/needleman_wunsch.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | const MATCH_SCORE: i32 = 1;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `AlignmentMatrix`
[INFO] [stdout]   --> src/wflambda/needleman_wunsch.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | type AlignmentMatrix = Vec<Vec<i32>>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `AlignmentMatrixWrapper`
[INFO] [stdout]   --> src/wflambda/needleman_wunsch.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct AlignmentMatrixWrapper<'a> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `init`
[INFO] [stdout]   --> src/wflambda/needleman_wunsch.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn init(text: &'a str, pattern: &'a str) -> Self {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_score`
[INFO] [stdout]   --> src/wflambda/needleman_wunsch.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn get_score(&self) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `align`
[INFO] [stdout]    --> src/wflambda/needleman_wunsch.rs:107:4
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn align(matrix_wrapper: &mut AlignmentMatrixWrapper) {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compute_traceback`
[INFO] [stdout]    --> src/wflambda/needleman_wunsch.rs:162:4
[INFO] [stdout]     |
[INFO] [stdout] 162 | fn compute_traceback(matrix_wrapper: &AlignmentMatrixWrapper) -> TraceBack {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_alignment`
[INFO] [stdout]    --> src/wflambda/needleman_wunsch.rs:215:4
[INFO] [stdout]     |
[INFO] [stdout] 215 | fn print_alignment(traceback: &TraceBack) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `needleman_wunsch`
[INFO] [stdout]    --> src/wflambda/needleman_wunsch.rs:229:4
[INFO] [stdout]     |
[INFO] [stdout] 229 | fn needleman_wunsch(text: &str, pattern: &str) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compute_alginment_score`
[INFO] [stdout]    --> src/wflambda/needleman_wunsch.rs:236:8
[INFO] [stdout]     |
[INFO] [stdout] 236 | pub fn compute_alginment_score(text: &str, pattern: &str) -> i32 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `central_diagonal`
[INFO] [stdout]    --> src/wflambda/wfa.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |         central_diagonal: usize, // k_zero
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `max_diagonal`
[INFO] [stdout]    --> src/wflambda/wfa.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |         max_diagonal: usize,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compute_alginment_score`
[INFO] [stdout]    --> src/wflambda/needleman_wunsch.rs:236:8
[INFO] [stdout]     |
[INFO] [stdout] 236 | pub fn compute_alginment_score(text: &str, pattern: &str) -> i32 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.49s
[INFO] running `Command { std: "docker" "inspect" "da8b013bac5fadec1a9b3b9d8197cc5bc961a0dd0c53c39fa42c7ccbc7256ebe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da8b013bac5fadec1a9b3b9d8197cc5bc961a0dd0c53c39fa42c7ccbc7256ebe", kill_on_drop: false }`
[INFO] [stdout] da8b013bac5fadec1a9b3b9d8197cc5bc961a0dd0c53c39fa42c7ccbc7256ebe