Dec 13 23:43:15.573 INFO testing chrisshyi/kosarajuSCC against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 13 23:43:15.573 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-1/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 13 23:43:16.035 INFO [stdout] eeb040a869ccf21324e862482e66c9e1ffb6c7f8f21cff51a33a8eb3898ce215
Dec 13 23:43:16.043 INFO running `"docker" "start" "-a" "eeb040a869ccf21324e862482e66c9e1ffb6c7f8f21cff51a33a8eb3898ce215"`
Dec 13 23:43:17.295 INFO [stderr] usermod: no changes
Dec 13 23:43:17.361 INFO [stderr]    Compiling kosarajuSCC v0.1.0 (/source)
Dec 13 23:43:17.820 INFO [stderr] warning: value assigned to `tail_vertx` is never read
Dec 13 23:43:17.820 INFO [stderr]   --> src/lib.rs:34:14
Dec 13 23:43:17.820 INFO [stderr]    |
Dec 13 23:43:17.820 INFO [stderr] 34 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 13 23:43:17.821 INFO [stderr]    |              ^^^^^^^^^^
Dec 13 23:43:17.821 INFO [stderr]    |
Dec 13 23:43:17.821 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 13 23:43:17.821 INFO [stderr] 
Dec 13 23:43:17.821 INFO [stderr] warning: value assigned to `head_vertx` is never read
Dec 13 23:43:17.821 INFO [stderr]   --> src/lib.rs:34:30
Dec 13 23:43:17.821 INFO [stderr]    |
Dec 13 23:43:17.821 INFO [stderr] 34 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 13 23:43:17.821 INFO [stderr]    |                              ^^^^^^^^^^
Dec 13 23:43:17.821 INFO [stderr] 
Dec 13 23:43:17.821 INFO [stderr] warning: value assigned to `tail_vertx` is never read
Dec 13 23:43:17.821 INFO [stderr]    --> src/lib.rs:137:14
Dec 13 23:43:17.821 INFO [stderr]     |
Dec 13 23:43:17.821 INFO [stderr] 137 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 13 23:43:17.821 INFO [stderr]     |              ^^^^^^^^^^
Dec 13 23:43:17.827 INFO [stderr] 
Dec 13 23:43:17.827 INFO [stderr] warning: value assigned to `head_vertx` is never read
Dec 13 23:43:17.827 INFO [stderr]    --> src/lib.rs:137:30
Dec 13 23:43:17.827 INFO [stderr]     |
Dec 13 23:43:17.827 INFO [stderr] 137 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 13 23:43:17.827 INFO [stderr]     |                              ^^^^^^^^^^
Dec 13 23:43:17.827 INFO [stderr] 
Dec 13 23:43:17.839 INFO [stderr] warning: crate `kosarajuSCC` should have a snake case name such as `kosaraju_scc`
Dec 13 23:43:17.839 INFO [stderr]   |
Dec 13 23:43:17.840 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 13 23:43:17.840 INFO [stderr] 
Dec 13 23:43:19.235 INFO [stderr] warning: unused import: `std::fs::File`
Dec 13 23:43:19.235 INFO [stderr]  --> src/main.rs:2:5
Dec 13 23:43:19.235 INFO [stderr]   |
Dec 13 23:43:19.235 INFO [stderr] 2 | use std::fs::File;
Dec 13 23:43:19.235 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 13 23:43:19.235 INFO [stderr]   |
Dec 13 23:43:19.235 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 13 23:43:19.235 INFO [stderr] 
Dec 13 23:43:19.271 INFO [stderr] warning: crate `kosarajuSCC` should have a snake case name such as `kosaraju_scc`
Dec 13 23:43:19.271 INFO [stderr]   |
Dec 13 23:43:19.271 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 13 23:43:19.271 INFO [stderr] 
Dec 13 23:43:19.953 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.62s
Dec 13 23:43:19.953 INFO [stderr] su: No module specific data is present
Dec 13 23:43:20.621 INFO running `"docker" "inspect" "eeb040a869ccf21324e862482e66c9e1ffb6c7f8f21cff51a33a8eb3898ce215"`
Dec 13 23:43:21.022 INFO running `"docker" "rm" "-f" "eeb040a869ccf21324e862482e66c9e1ffb6c7f8f21cff51a33a8eb3898ce215"`
Dec 13 23:43:21.363 INFO [stdout] eeb040a869ccf21324e862482e66c9e1ffb6c7f8f21cff51a33a8eb3898ce215
Dec 13 23:43:21.365 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-1/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 13 23:43:21.819 INFO [stdout] a8b35c24f28493e0ac43148bc394080a568886827420f74533d2dfd55b054013
Dec 13 23:43:21.823 INFO running `"docker" "start" "-a" "a8b35c24f28493e0ac43148bc394080a568886827420f74533d2dfd55b054013"`
Dec 13 23:43:22.731 INFO [stderr] usermod: no changes
Dec 13 23:43:22.800 INFO [stderr]    Compiling kosarajuSCC v0.1.0 (/source)
Dec 13 23:43:23.359 INFO [stderr] warning: unused import: `std::fs::File`
Dec 13 23:43:23.359 INFO [stderr]  --> src/main.rs:2:5
Dec 13 23:43:23.359 INFO [stderr]   |
Dec 13 23:43:23.359 INFO [stderr] 2 | use std::fs::File;
Dec 13 23:43:23.359 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 13 23:43:23.359 INFO [stderr]   |
Dec 13 23:43:23.359 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 13 23:43:23.359 INFO [stderr] 
Dec 13 23:43:23.425 INFO [stderr] warning: crate `kosarajuSCC` should have a snake case name such as `kosaraju_scc`
Dec 13 23:43:23.425 INFO [stderr]   |
Dec 13 23:43:23.425 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 13 23:43:23.425 INFO [stderr] 
Dec 13 23:43:23.959 INFO [stderr] warning: value assigned to `tail_vertx` is never read
Dec 13 23:43:23.959 INFO [stderr]   --> src/lib.rs:34:14
Dec 13 23:43:23.959 INFO [stderr]    |
Dec 13 23:43:23.959 INFO [stderr] 34 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 13 23:43:23.959 INFO [stderr]    |              ^^^^^^^^^^
Dec 13 23:43:23.959 INFO [stderr]    |
Dec 13 23:43:23.959 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 13 23:43:23.959 INFO [stderr] 
Dec 13 23:43:23.959 INFO [stderr] warning: value assigned to `head_vertx` is never read
Dec 13 23:43:23.959 INFO [stderr]   --> src/lib.rs:34:30
Dec 13 23:43:23.959 INFO [stderr]    |
Dec 13 23:43:23.959 INFO [stderr] 34 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 13 23:43:23.959 INFO [stderr]    |                              ^^^^^^^^^^
Dec 13 23:43:23.959 INFO [stderr] 
Dec 13 23:43:23.959 INFO [stderr] warning: value assigned to `tail_vertx` is never read
Dec 13 23:43:23.959 INFO [stderr]    --> src/lib.rs:137:14
Dec 13 23:43:23.959 INFO [stderr]     |
Dec 13 23:43:23.959 INFO [stderr] 137 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 13 23:43:23.959 INFO [stderr]     |              ^^^^^^^^^^
Dec 13 23:43:23.959 INFO [stderr] 
Dec 13 23:43:23.959 INFO [stderr] warning: value assigned to `head_vertx` is never read
Dec 13 23:43:23.959 INFO [stderr]    --> src/lib.rs:137:30
Dec 13 23:43:23.959 INFO [stderr]     |
Dec 13 23:43:23.959 INFO [stderr] 137 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 13 23:43:23.959 INFO [stderr]     |                              ^^^^^^^^^^
Dec 13 23:43:23.959 INFO [stderr] 
Dec 13 23:43:24.035 INFO [stderr] warning: crate `kosarajuSCC` should have a snake case name such as `kosaraju_scc`
Dec 13 23:43:24.035 INFO [stderr]   |
Dec 13 23:43:24.035 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 13 23:43:24.035 INFO [stderr] 
Dec 13 23:43:25.339 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.56s
Dec 13 23:43:25.339 INFO [stderr] su: No module specific data is present
Dec 13 23:43:25.918 INFO running `"docker" "inspect" "a8b35c24f28493e0ac43148bc394080a568886827420f74533d2dfd55b054013"`
Dec 13 23:43:26.191 INFO running `"docker" "rm" "-f" "a8b35c24f28493e0ac43148bc394080a568886827420f74533d2dfd55b054013"`
Dec 13 23:43:26.423 INFO [stdout] a8b35c24f28493e0ac43148bc394080a568886827420f74533d2dfd55b054013