Nov 17 06:38:30.992 INFO testing chrisshyi/kosarajuSCC against master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c for pr-55982
Nov 17 06:38:30.992 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-2/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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 06:38:31.423 INFO [stdout] 3a41c1af6d1336e28e09c2dfda0e4114d4b7fca8ecc4e91215145507d6cec554
Nov 17 06:38:31.427 INFO running `"docker" "start" "-a" "3a41c1af6d1336e28e09c2dfda0e4114d4b7fca8ecc4e91215145507d6cec554"`
Nov 17 06:38:32.607 INFO [stderr] usermod: no changes
Nov 17 06:38:32.699 INFO [stderr]    Compiling kosarajuSCC v0.1.0 (/source)
Nov 17 06:38:33.159 INFO [stderr] warning: value assigned to `tail_vertx` is never read
Nov 17 06:38:33.159 INFO [stderr]   --> src/lib.rs:34:14
Nov 17 06:38:33.159 INFO [stderr]    |
Nov 17 06:38:33.159 INFO [stderr] 34 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Nov 17 06:38:33.159 INFO [stderr]    |              ^^^^^^^^^^
Nov 17 06:38:33.159 INFO [stderr]    |
Nov 17 06:38:33.159 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 17 06:38:33.159 INFO [stderr] 
Nov 17 06:38:33.159 INFO [stderr] warning: value assigned to `head_vertx` is never read
Nov 17 06:38:33.159 INFO [stderr]   --> src/lib.rs:34:30
Nov 17 06:38:33.159 INFO [stderr]    |
Nov 17 06:38:33.159 INFO [stderr] 34 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Nov 17 06:38:33.159 INFO [stderr]    |                              ^^^^^^^^^^
Nov 17 06:38:33.159 INFO [stderr] 
Nov 17 06:38:33.159 INFO [stderr] warning: value assigned to `tail_vertx` is never read
Nov 17 06:38:33.159 INFO [stderr]    --> src/lib.rs:137:14
Nov 17 06:38:33.159 INFO [stderr]     |
Nov 17 06:38:33.159 INFO [stderr] 137 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Nov 17 06:38:33.159 INFO [stderr]     |              ^^^^^^^^^^
Nov 17 06:38:33.159 INFO [stderr] 
Nov 17 06:38:33.159 INFO [stderr] warning: value assigned to `head_vertx` is never read
Nov 17 06:38:33.159 INFO [stderr]    --> src/lib.rs:137:30
Nov 17 06:38:33.159 INFO [stderr]     |
Nov 17 06:38:33.159 INFO [stderr] 137 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Nov 17 06:38:33.159 INFO [stderr]     |                              ^^^^^^^^^^
Nov 17 06:38:33.159 INFO [stderr] 
Nov 17 06:38:33.171 INFO [stderr] warning: crate `kosarajuSCC` should have a snake case name such as `kosaraju_scc`
Nov 17 06:38:33.171 INFO [stderr]   |
Nov 17 06:38:33.183 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Nov 17 06:38:33.183 INFO [stderr] 
Nov 17 06:38:34.655 INFO [stderr] warning: unused import: `std::fs::File`
Nov 17 06:38:34.655 INFO [stderr]  --> src/main.rs:2:5
Nov 17 06:38:34.656 INFO [stderr]   |
Nov 17 06:38:34.656 INFO [stderr] 2 | use std::fs::File;
Nov 17 06:38:34.656 INFO [stderr]   |     ^^^^^^^^^^^^^
Nov 17 06:38:34.657 INFO [stderr]   |
Nov 17 06:38:34.657 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 17 06:38:34.657 INFO [stderr] 
Nov 17 06:38:34.692 INFO [stderr] warning: crate `kosarajuSCC` should have a snake case name such as `kosaraju_scc`
Nov 17 06:38:34.693 INFO [stderr]   |
Nov 17 06:38:34.693 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Nov 17 06:38:34.693 INFO [stderr] 
Nov 17 06:38:35.314 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.68s
Nov 17 06:38:35.318 INFO [stderr] su: No module specific data is present
Nov 17 06:38:35.949 INFO running `"docker" "inspect" "3a41c1af6d1336e28e09c2dfda0e4114d4b7fca8ecc4e91215145507d6cec554"`
Nov 17 06:38:36.304 INFO running `"docker" "rm" "-f" "3a41c1af6d1336e28e09c2dfda0e4114d4b7fca8ecc4e91215145507d6cec554"`
Nov 17 06:38:36.599 INFO [stdout] 3a41c1af6d1336e28e09c2dfda0e4114d4b7fca8ecc4e91215145507d6cec554
Nov 17 06:38:36.616 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-2/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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 06:38:37.051 INFO [stdout] 7df8b395fed5d7cb35d34e7c05eef456fc54fcb525f96924c22276706a99be83
Nov 17 06:38:37.056 INFO running `"docker" "start" "-a" "7df8b395fed5d7cb35d34e7c05eef456fc54fcb525f96924c22276706a99be83"`
Nov 17 06:38:38.259 INFO [stderr] usermod: no changes
Nov 17 06:38:38.339 INFO [stderr]    Compiling kosarajuSCC v0.1.0 (/source)
Nov 17 06:38:38.921 INFO [stderr] warning: unused import: `std::fs::File`
Nov 17 06:38:38.922 INFO [stderr]  --> src/main.rs:2:5
Nov 17 06:38:38.922 INFO [stderr]   |
Nov 17 06:38:38.922 INFO [stderr] 2 | use std::fs::File;
Nov 17 06:38:38.922 INFO [stderr]   |     ^^^^^^^^^^^^^
Nov 17 06:38:38.922 INFO [stderr]   |
Nov 17 06:38:38.922 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 17 06:38:38.922 INFO [stderr] 
Nov 17 06:38:38.962 INFO [stderr] warning: crate `kosarajuSCC` should have a snake case name such as `kosaraju_scc`
Nov 17 06:38:38.962 INFO [stderr]   |
Nov 17 06:38:38.962 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Nov 17 06:38:38.962 INFO [stderr] 
Nov 17 06:38:39.079 INFO [stderr] warning: value assigned to `tail_vertx` is never read
Nov 17 06:38:39.079 INFO [stderr]   --> src/lib.rs:34:14
Nov 17 06:38:39.079 INFO [stderr]    |
Nov 17 06:38:39.079 INFO [stderr] 34 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Nov 17 06:38:39.079 INFO [stderr]    |              ^^^^^^^^^^
Nov 17 06:38:39.079 INFO [stderr]    |
Nov 17 06:38:39.079 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 17 06:38:39.079 INFO [stderr] 
Nov 17 06:38:39.079 INFO [stderr] warning: value assigned to `head_vertx` is never read
Nov 17 06:38:39.079 INFO [stderr]   --> src/lib.rs:34:30
Nov 17 06:38:39.079 INFO [stderr]    |
Nov 17 06:38:39.079 INFO [stderr] 34 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Nov 17 06:38:39.079 INFO [stderr]    |                              ^^^^^^^^^^
Nov 17 06:38:39.079 INFO [stderr] 
Nov 17 06:38:39.079 INFO [stderr] warning: value assigned to `tail_vertx` is never read
Nov 17 06:38:39.079 INFO [stderr]    --> src/lib.rs:137:14
Nov 17 06:38:39.079 INFO [stderr]     |
Nov 17 06:38:39.079 INFO [stderr] 137 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Nov 17 06:38:39.079 INFO [stderr]     |              ^^^^^^^^^^
Nov 17 06:38:39.079 INFO [stderr] 
Nov 17 06:38:39.079 INFO [stderr] warning: value assigned to `head_vertx` is never read
Nov 17 06:38:39.079 INFO [stderr]    --> src/lib.rs:137:30
Nov 17 06:38:39.079 INFO [stderr]     |
Nov 17 06:38:39.079 INFO [stderr] 137 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Nov 17 06:38:39.079 INFO [stderr]     |                              ^^^^^^^^^^
Nov 17 06:38:39.079 INFO [stderr] 
Nov 17 06:38:39.207 INFO [stderr] warning: crate `kosarajuSCC` should have a snake case name such as `kosaraju_scc`
Nov 17 06:38:39.207 INFO [stderr]   |
Nov 17 06:38:39.207 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Nov 17 06:38:39.207 INFO [stderr] 
Nov 17 06:38:40.823 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.52s
Nov 17 06:38:40.823 INFO [stderr] su: No module specific data is present
Nov 17 06:38:41.589 INFO running `"docker" "inspect" "7df8b395fed5d7cb35d34e7c05eef456fc54fcb525f96924c22276706a99be83"`
Nov 17 06:38:41.923 INFO running `"docker" "rm" "-f" "7df8b395fed5d7cb35d34e7c05eef456fc54fcb525f96924c22276706a99be83"`
Nov 17 06:38:42.207 INFO [stdout] 7df8b395fed5d7cb35d34e7c05eef456fc54fcb525f96924c22276706a99be83