Nov 17 06:38:30.703 INFO testing chrisshyi/kosarajuSCC against try#2e026d6e5d7621634147ad4c8074f1d964dbb1be for pr-55982
Nov 17 06:38:30.705 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-6/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +2e026d6e5d7621634147ad4c8074f1d964dbb1be-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 17 06:38:31.197 INFO [stdout] 0a75eb2df40a2d8cdb4154d19d78a189207e6f2673b3e501776fa2e556d124d1
Nov 17 06:38:31.205 INFO running `"docker" "start" "-a" "0a75eb2df40a2d8cdb4154d19d78a189207e6f2673b3e501776fa2e556d124d1"`
Nov 17 06:38:32.283 INFO [stderr] usermod: no changes
Nov 17 06:38:32.331 INFO [stderr]    Compiling kosarajuSCC v0.1.0 (/source)
Nov 17 06:38:32.707 INFO [stderr] warning: value assigned to `tail_vertx` is never read
Nov 17 06:38:32.707 INFO [stderr]   --> src/lib.rs:34:14
Nov 17 06:38:32.707 INFO [stderr]    |
Nov 17 06:38:32.707 INFO [stderr] 34 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Nov 17 06:38:32.707 INFO [stderr]    |              ^^^^^^^^^^
Nov 17 06:38:32.707 INFO [stderr]    |
Nov 17 06:38:32.707 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 17 06:38:32.707 INFO [stderr] 
Nov 17 06:38:32.707 INFO [stderr] warning: value assigned to `head_vertx` is never read
Nov 17 06:38:32.707 INFO [stderr]   --> src/lib.rs:34:30
Nov 17 06:38:32.707 INFO [stderr]    |
Nov 17 06:38:32.707 INFO [stderr] 34 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Nov 17 06:38:32.707 INFO [stderr]    |                              ^^^^^^^^^^
Nov 17 06:38:32.707 INFO [stderr] 
Nov 17 06:38:32.707 INFO [stderr] warning: value assigned to `tail_vertx` is never read
Nov 17 06:38:32.707 INFO [stderr]    --> src/lib.rs:137:14
Nov 17 06:38:32.707 INFO [stderr]     |
Nov 17 06:38:32.707 INFO [stderr] 137 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Nov 17 06:38:32.707 INFO [stderr]     |              ^^^^^^^^^^
Nov 17 06:38:32.707 INFO [stderr] 
Nov 17 06:38:32.707 INFO [stderr] warning: value assigned to `head_vertx` is never read
Nov 17 06:38:32.707 INFO [stderr]    --> src/lib.rs:137:30
Nov 17 06:38:32.707 INFO [stderr]     |
Nov 17 06:38:32.707 INFO [stderr] 137 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Nov 17 06:38:32.707 INFO [stderr]     |                              ^^^^^^^^^^
Nov 17 06:38:32.707 INFO [stderr] 
Nov 17 06:38:32.727 INFO [stderr] warning: crate `kosarajuSCC` should have a snake case name such as `kosaraju_scc`
Nov 17 06:38:32.727 INFO [stderr]   |
Nov 17 06:38:32.727 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Nov 17 06:38:32.727 INFO [stderr] 
Nov 17 06:38:34.173 INFO [stderr] warning: unused import: `std::fs::File`
Nov 17 06:38:34.173 INFO [stderr]  --> src/main.rs:2:5
Nov 17 06:38:34.173 INFO [stderr]   |
Nov 17 06:38:34.174 INFO [stderr] 2 | use std::fs::File;
Nov 17 06:38:34.174 INFO [stderr]   |     ^^^^^^^^^^^^^
Nov 17 06:38:34.174 INFO [stderr]   |
Nov 17 06:38:34.175 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 17 06:38:34.175 INFO [stderr] 
Nov 17 06:38:34.219 INFO [stderr] warning: crate `kosarajuSCC` should have a snake case name such as `kosaraju_scc`
Nov 17 06:38:34.220 INFO [stderr]   |
Nov 17 06:38:34.220 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Nov 17 06:38:34.220 INFO [stderr] 
Nov 17 06:38:35.062 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.75s
Nov 17 06:38:35.071 INFO [stderr] su: No module specific data is present
Nov 17 06:38:35.761 INFO running `"docker" "inspect" "0a75eb2df40a2d8cdb4154d19d78a189207e6f2673b3e501776fa2e556d124d1"`
Nov 17 06:38:36.138 INFO running `"docker" "rm" "-f" "0a75eb2df40a2d8cdb4154d19d78a189207e6f2673b3e501776fa2e556d124d1"`
Nov 17 06:38:36.467 INFO [stdout] 0a75eb2df40a2d8cdb4154d19d78a189207e6f2673b3e501776fa2e556d124d1
Nov 17 06:38:36.473 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-6/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +2e026d6e5d7621634147ad4c8074f1d964dbb1be-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 17 06:38:37.114 INFO [stdout] becac54528b571b5d2711c5badad18953fc4c38f40b752ea599b55106e05edaf
Nov 17 06:38:37.119 INFO running `"docker" "start" "-a" "becac54528b571b5d2711c5badad18953fc4c38f40b752ea599b55106e05edaf"`
Nov 17 06:38:38.563 INFO [stderr] usermod: no changes
Nov 17 06:38:38.619 INFO [stderr]    Compiling kosarajuSCC v0.1.0 (/source)
Nov 17 06:38:39.355 INFO [stderr] warning: unused import: `std::fs::File`
Nov 17 06:38:39.355 INFO [stderr]  --> src/main.rs:2:5
Nov 17 06:38:39.356 INFO [stderr]   |
Nov 17 06:38:39.356 INFO [stderr] 2 | use std::fs::File;
Nov 17 06:38:39.356 INFO [stderr]   |     ^^^^^^^^^^^^^
Nov 17 06:38:39.356 INFO [stderr]   |
Nov 17 06:38:39.357 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 17 06:38:39.357 INFO [stderr] 
Nov 17 06:38:39.392 INFO [stderr] warning: value assigned to `tail_vertx` is never read
Nov 17 06:38:39.392 INFO [stderr]   --> src/lib.rs:34:14
Nov 17 06:38:39.393 INFO [stderr]    |
Nov 17 06:38:39.393 INFO [stderr] 34 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Nov 17 06:38:39.393 INFO [stderr]    |              ^^^^^^^^^^
Nov 17 06:38:39.393 INFO [stderr]    |
Nov 17 06:38:39.394 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 17 06:38:39.394 INFO [stderr] 
Nov 17 06:38:39.394 INFO [stderr] warning: value assigned to `head_vertx` is never read
Nov 17 06:38:39.395 INFO [stderr]   --> src/lib.rs:34:30
Nov 17 06:38:39.395 INFO [stderr]    |
Nov 17 06:38:39.395 INFO [stderr] 34 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Nov 17 06:38:39.396 INFO [stderr]    |                              ^^^^^^^^^^
Nov 17 06:38:39.396 INFO [stderr] 
Nov 17 06:38:39.396 INFO [stderr] warning: value assigned to `tail_vertx` is never read
Nov 17 06:38:39.397 INFO [stderr]    --> src/lib.rs:137:14
Nov 17 06:38:39.397 INFO [stderr]     |
Nov 17 06:38:39.397 INFO [stderr] 137 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Nov 17 06:38:39.398 INFO [stderr]     |              ^^^^^^^^^^
Nov 17 06:38:39.398 INFO [stderr] 
Nov 17 06:38:39.398 INFO [stderr] warning: value assigned to `head_vertx` is never read
Nov 17 06:38:39.399 INFO [stderr]    --> src/lib.rs:137:30
Nov 17 06:38:39.399 INFO [stderr]     |
Nov 17 06:38:39.399 INFO [stderr] 137 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Nov 17 06:38:39.400 INFO [stderr]     |                              ^^^^^^^^^^
Nov 17 06:38:39.400 INFO [stderr] 
Nov 17 06:38:39.407 INFO [stderr] warning: crate `kosarajuSCC` should have a snake case name such as `kosaraju_scc`
Nov 17 06:38:39.407 INFO [stderr]   |
Nov 17 06:38:39.407 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Nov 17 06:38:39.407 INFO [stderr] 
Nov 17 06:38:39.451 INFO [stderr] warning: crate `kosarajuSCC` should have a snake case name such as `kosaraju_scc`
Nov 17 06:38:39.451 INFO [stderr]   |
Nov 17 06:38:39.455 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Nov 17 06:38:39.455 INFO [stderr] 
Nov 17 06:38:40.860 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.27s
Nov 17 06:38:40.863 INFO [stderr] su: No module specific data is present
Nov 17 06:38:41.494 INFO running `"docker" "inspect" "becac54528b571b5d2711c5badad18953fc4c38f40b752ea599b55106e05edaf"`
Nov 17 06:38:41.660 INFO running `"docker" "rm" "-f" "becac54528b571b5d2711c5badad18953fc4c38f40b752ea599b55106e05edaf"`
Nov 17 06:38:41.955 INFO [stdout] becac54528b571b5d2711c5badad18953fc4c38f40b752ea599b55106e05edaf