Dec 06 03:53:12.005 INFO testing chrisshyi/kosarajuSCC against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 06 03:53:12.005 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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"`
Dec 06 03:53:12.412 INFO [stdout] 70fc5407842944d8889194a9841ecd3c688d048fd2cdd1a11f898dd65cb5403a
Dec 06 03:53:12.417 INFO running `"docker" "start" "-a" "70fc5407842944d8889194a9841ecd3c688d048fd2cdd1a11f898dd65cb5403a"`
Dec 06 03:53:13.863 INFO [stderr] usermod: no changes
Dec 06 03:53:13.910 INFO [stderr]    Compiling kosarajuSCC v0.1.0 (/source)
Dec 06 03:53:14.324 INFO [stderr] warning: value assigned to `tail_vertx` is never read
Dec 06 03:53:14.324 INFO [stderr]   --> src/lib.rs:34:14
Dec 06 03:53:14.324 INFO [stderr]    |
Dec 06 03:53:14.324 INFO [stderr] 34 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 06 03:53:14.324 INFO [stderr]    |              ^^^^^^^^^^
Dec 06 03:53:14.325 INFO [stderr]    |
Dec 06 03:53:14.326 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 06 03:53:14.326 INFO [stderr] 
Dec 06 03:53:14.326 INFO [stderr] warning: value assigned to `head_vertx` is never read
Dec 06 03:53:14.326 INFO [stderr]   --> src/lib.rs:34:30
Dec 06 03:53:14.326 INFO [stderr]    |
Dec 06 03:53:14.326 INFO [stderr] 34 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 06 03:53:14.326 INFO [stderr]    |                              ^^^^^^^^^^
Dec 06 03:53:14.326 INFO [stderr] 
Dec 06 03:53:14.326 INFO [stderr] warning: value assigned to `tail_vertx` is never read
Dec 06 03:53:14.326 INFO [stderr]    --> src/lib.rs:137:14
Dec 06 03:53:14.326 INFO [stderr]     |
Dec 06 03:53:14.326 INFO [stderr] 137 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 06 03:53:14.326 INFO [stderr]     |              ^^^^^^^^^^
Dec 06 03:53:14.326 INFO [stderr] 
Dec 06 03:53:14.326 INFO [stderr] warning: value assigned to `head_vertx` is never read
Dec 06 03:53:14.326 INFO [stderr]    --> src/lib.rs:137:30
Dec 06 03:53:14.326 INFO [stderr]     |
Dec 06 03:53:14.326 INFO [stderr] 137 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 06 03:53:14.326 INFO [stderr]     |                              ^^^^^^^^^^
Dec 06 03:53:14.326 INFO [stderr] 
Dec 06 03:53:14.344 INFO [stderr] warning: crate `kosarajuSCC` should have a snake case name such as `kosaraju_scc`
Dec 06 03:53:14.344 INFO [stderr]   |
Dec 06 03:53:14.344 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 06 03:53:14.344 INFO [stderr] 
Dec 06 03:53:15.704 INFO [stderr] warning: unused import: `std::fs::File`
Dec 06 03:53:15.704 INFO [stderr]  --> src/main.rs:2:5
Dec 06 03:53:15.704 INFO [stderr]   |
Dec 06 03:53:15.704 INFO [stderr] 2 | use std::fs::File;
Dec 06 03:53:15.704 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 06 03:53:15.704 INFO [stderr]   |
Dec 06 03:53:15.704 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 06 03:53:15.704 INFO [stderr] 
Dec 06 03:53:15.744 INFO [stderr] warning: crate `kosarajuSCC` should have a snake case name such as `kosaraju_scc`
Dec 06 03:53:15.744 INFO [stderr]   |
Dec 06 03:53:15.744 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 06 03:53:15.744 INFO [stderr] 
Dec 06 03:53:16.512 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.63s
Dec 06 03:53:16.512 INFO [stderr] su: No module specific data is present
Dec 06 03:53:17.200 INFO running `"docker" "inspect" "70fc5407842944d8889194a9841ecd3c688d048fd2cdd1a11f898dd65cb5403a"`
Dec 06 03:53:17.451 INFO running `"docker" "rm" "-f" "70fc5407842944d8889194a9841ecd3c688d048fd2cdd1a11f898dd65cb5403a"`
Dec 06 03:53:17.797 INFO [stdout] 70fc5407842944d8889194a9841ecd3c688d048fd2cdd1a11f898dd65cb5403a
Dec 06 03:53:17.802 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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"`
Dec 06 03:53:18.464 INFO [stdout] fe28ffd8a89cb7ee2aa63c90fc0138170db587b13440c31fc89ed43b328faff4
Dec 06 03:53:18.470 INFO running `"docker" "start" "-a" "fe28ffd8a89cb7ee2aa63c90fc0138170db587b13440c31fc89ed43b328faff4"`
Dec 06 03:53:19.576 INFO [stderr] usermod: no changes
Dec 06 03:53:19.639 INFO [stderr]    Compiling kosarajuSCC v0.1.0 (/source)
Dec 06 03:53:20.200 INFO [stderr] warning: unused import: `std::fs::File`
Dec 06 03:53:20.200 INFO [stderr]  --> src/main.rs:2:5
Dec 06 03:53:20.200 INFO [stderr]   |
Dec 06 03:53:20.200 INFO [stderr] 2 | use std::fs::File;
Dec 06 03:53:20.200 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 06 03:53:20.200 INFO [stderr]   |
Dec 06 03:53:20.200 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 06 03:53:20.200 INFO [stderr] 
Dec 06 03:53:20.272 INFO [stderr] warning: crate `kosarajuSCC` should have a snake case name such as `kosaraju_scc`
Dec 06 03:53:20.272 INFO [stderr]   |
Dec 06 03:53:20.272 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 06 03:53:20.272 INFO [stderr] 
Dec 06 03:53:20.352 INFO [stderr] warning: value assigned to `tail_vertx` is never read
Dec 06 03:53:20.352 INFO [stderr]   --> src/lib.rs:34:14
Dec 06 03:53:20.352 INFO [stderr]    |
Dec 06 03:53:20.352 INFO [stderr] 34 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 06 03:53:20.352 INFO [stderr]    |              ^^^^^^^^^^
Dec 06 03:53:20.352 INFO [stderr]    |
Dec 06 03:53:20.352 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 06 03:53:20.352 INFO [stderr] 
Dec 06 03:53:20.352 INFO [stderr] warning: value assigned to `head_vertx` is never read
Dec 06 03:53:20.352 INFO [stderr]   --> src/lib.rs:34:30
Dec 06 03:53:20.352 INFO [stderr]    |
Dec 06 03:53:20.352 INFO [stderr] 34 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 06 03:53:20.352 INFO [stderr]    |                              ^^^^^^^^^^
Dec 06 03:53:20.352 INFO [stderr] 
Dec 06 03:53:20.352 INFO [stderr] warning: value assigned to `tail_vertx` is never read
Dec 06 03:53:20.353 INFO [stderr]    --> src/lib.rs:137:14
Dec 06 03:53:20.353 INFO [stderr]     |
Dec 06 03:53:20.353 INFO [stderr] 137 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 06 03:53:20.353 INFO [stderr]     |              ^^^^^^^^^^
Dec 06 03:53:20.353 INFO [stderr] 
Dec 06 03:53:20.353 INFO [stderr] warning: value assigned to `head_vertx` is never read
Dec 06 03:53:20.353 INFO [stderr]    --> src/lib.rs:137:30
Dec 06 03:53:20.353 INFO [stderr]     |
Dec 06 03:53:20.353 INFO [stderr] 137 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 06 03:53:20.353 INFO [stderr]     |                              ^^^^^^^^^^
Dec 06 03:53:20.353 INFO [stderr] 
Dec 06 03:53:20.432 INFO [stderr] warning: crate `kosarajuSCC` should have a snake case name such as `kosaraju_scc`
Dec 06 03:53:20.432 INFO [stderr]   |
Dec 06 03:53:20.432 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 06 03:53:20.432 INFO [stderr] 
Dec 06 03:53:21.770 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.16s
Dec 06 03:53:21.772 INFO [stderr] su: No module specific data is present
Dec 06 03:53:22.778 INFO running `"docker" "inspect" "fe28ffd8a89cb7ee2aa63c90fc0138170db587b13440c31fc89ed43b328faff4"`
Dec 06 03:53:23.140 INFO running `"docker" "rm" "-f" "fe28ffd8a89cb7ee2aa63c90fc0138170db587b13440c31fc89ed43b328faff4"`
Dec 06 03:53:23.348 INFO [stdout] fe28ffd8a89cb7ee2aa63c90fc0138170db587b13440c31fc89ed43b328faff4