[INFO] cloning repository https://github.com/oldtune/levenshtein_step
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/oldtune/levenshtein_step" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foldtune%2Flevenshtein_step", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foldtune%2Flevenshtein_step'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ee88c576c7a32e88fd95cb873c456d8372173e2d
[INFO] testing oldtune/levenshtein_step against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foldtune%2Flevenshtein_step" "/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/oldtune/levenshtein_step
[INFO] finished tweaking git repo https://github.com/oldtune/levenshtein_step
[INFO] tweaked toml for git repo https://github.com/oldtune/levenshtein_step written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/oldtune/levenshtein_step on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/oldtune/levenshtein_step 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" "+b83b707f97d809763b7861afa7638871f3339a33" "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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 531c3cc6ab78cb4e750fcb9d936c4189b7b87033366b6e4f571d5155e864592d
[INFO] running `Command { std: "docker" "start" "-a" "531c3cc6ab78cb4e750fcb9d936c4189b7b87033366b6e4f571d5155e864592d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "531c3cc6ab78cb4e750fcb9d936c4189b7b87033366b6e4f571d5155e864592d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "531c3cc6ab78cb4e750fcb9d936c4189b7b87033366b6e4f571d5155e864592d", kill_on_drop: false }`
[INFO] [stdout] 531c3cc6ab78cb4e750fcb9d936c4189b7b87033366b6e4f571d5155e864592d
[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=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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cddff7c8a51c7abd3b4d425de54be25421ff68d6cea9f0c2ad86087ebd8c1aeb
[INFO] running `Command { std: "docker" "start" "-a" "cddff7c8a51c7abd3b4d425de54be25421ff68d6cea9f0c2ad86087ebd8c1aeb", kill_on_drop: false }`
[INFO] [stderr]    Compiling levenshtein-step v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `matrix::Matrix`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use matrix::Matrix;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Matrix` is never constructed
[INFO] [stdout]  --> src/matrix.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Matrix {
[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 `print_matrix` is never used
[INFO] [stdout]   --> src/matrix.rs:68:4
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn print_matrix(matrix: &Vec<Vec<usize>>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "cddff7c8a51c7abd3b4d425de54be25421ff68d6cea9f0c2ad86087ebd8c1aeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cddff7c8a51c7abd3b4d425de54be25421ff68d6cea9f0c2ad86087ebd8c1aeb", kill_on_drop: false }`
[INFO] [stdout] cddff7c8a51c7abd3b4d425de54be25421ff68d6cea9f0c2ad86087ebd8c1aeb
[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=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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f07de4fc26971cb434ce25f671fe6c0c97ad8e04d31ea21dbf62ca4b5dcbcf9f
[INFO] running `Command { std: "docker" "start" "-a" "f07de4fc26971cb434ce25f671fe6c0c97ad8e04d31ea21dbf62ca4b5dcbcf9f", kill_on_drop: false }`
[INFO] [stderr]    Compiling levenshtein-step v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `matrix::Matrix`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use matrix::Matrix;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Matrix` is never constructed
[INFO] [stdout]  --> src/matrix.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Matrix {
[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 `print_matrix` is never used
[INFO] [stdout]   --> src/matrix.rs:68:4
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn print_matrix(matrix: &Vec<Vec<usize>>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "f07de4fc26971cb434ce25f671fe6c0c97ad8e04d31ea21dbf62ca4b5dcbcf9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f07de4fc26971cb434ce25f671fe6c0c97ad8e04d31ea21dbf62ca4b5dcbcf9f", kill_on_drop: false }`
[INFO] [stdout] f07de4fc26971cb434ce25f671fe6c0c97ad8e04d31ea21dbf62ca4b5dcbcf9f
[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=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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8d21897c8509718337cad857251b769604e61adac78153abbc193de4e60f0bec
[INFO] running `Command { std: "docker" "start" "-a" "8d21897c8509718337cad857251b769604e61adac78153abbc193de4e60f0bec", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `matrix::Matrix`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use matrix::Matrix;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Matrix` is never constructed
[INFO] [stderr]  --> src/matrix.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub struct Matrix {
[INFO] [stderr]   |            ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `print_matrix` is never used
[INFO] [stderr]   --> src/matrix.rs:68:4
[INFO] [stderr]    |
[INFO] [stderr] 68 | fn print_matrix(matrix: &Vec<Vec<usize>>) {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `levenshtein-step` (bin "levenshtein-step" test) generated 3 warnings (run `cargo fix --bin "levenshtein-step" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/levenshtein_step-6a4cc961f7d24cbb)
[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] running `Command { std: "docker" "inspect" "8d21897c8509718337cad857251b769604e61adac78153abbc193de4e60f0bec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d21897c8509718337cad857251b769604e61adac78153abbc193de4e60f0bec", kill_on_drop: false }`
[INFO] [stdout] 8d21897c8509718337cad857251b769604e61adac78153abbc193de4e60f0bec