Dec 11 20:52:35.856 INFO checking chrisshyi/kosarajuSCC against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 20:52:35.856 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-alt check --frozen --all --all-targets" "-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 11 20:52:36.290 INFO [stdout] 21496d8a4a5a63cec6ca2702075ad59861779bb39092ebd06bb063e62b0349ba
Dec 11 20:52:36.298 INFO running `"docker" "start" "-a" "21496d8a4a5a63cec6ca2702075ad59861779bb39092ebd06bb063e62b0349ba"`
Dec 11 20:52:38.252 INFO [stderr] usermod: no changes
Dec 11 20:52:38.321 INFO [stderr]     Checking kosarajuSCC v0.1.0 (/source)
Dec 11 20:52:39.080 INFO [stderr] warning: value assigned to `tail_vertx` is never read
Dec 11 20:52:39.080 INFO [stderr]   --> src/lib.rs:34:14
Dec 11 20:52:39.080 INFO [stderr]    |
Dec 11 20:52:39.080 INFO [stderr] 34 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 11 20:52:39.080 INFO [stderr]    |              ^^^^^^^^^^
Dec 11 20:52:39.080 INFO [stderr]    |
Dec 11 20:52:39.080 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 11 20:52:39.080 INFO [stderr] 
Dec 11 20:52:39.080 INFO [stderr] warning: value assigned to `head_vertx` is never read
Dec 11 20:52:39.080 INFO [stderr]   --> src/lib.rs:34:30
Dec 11 20:52:39.080 INFO [stderr]    |
Dec 11 20:52:39.080 INFO [stderr] 34 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 11 20:52:39.080 INFO [stderr]    |                              ^^^^^^^^^^
Dec 11 20:52:39.080 INFO [stderr] 
Dec 11 20:52:39.080 INFO [stderr] warning: value assigned to `tail_vertx` is never read
Dec 11 20:52:39.080 INFO [stderr]    --> src/lib.rs:137:14
Dec 11 20:52:39.080 INFO [stderr]     |
Dec 11 20:52:39.080 INFO [stderr] 137 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 11 20:52:39.080 INFO [stderr]     |              ^^^^^^^^^^
Dec 11 20:52:39.080 INFO [stderr] 
Dec 11 20:52:39.080 INFO [stderr] warning: value assigned to `head_vertx` is never read
Dec 11 20:52:39.081 INFO [stderr]    --> src/lib.rs:137:30
Dec 11 20:52:39.081 INFO [stderr]     |
Dec 11 20:52:39.081 INFO [stderr] 137 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 11 20:52:39.081 INFO [stderr]     |                              ^^^^^^^^^^
Dec 11 20:52:39.081 INFO [stderr] 
Dec 11 20:52:39.112 INFO [stderr] warning: crate `kosarajuSCC` should have a snake case name such as `kosaraju_scc`
Dec 11 20:52:39.112 INFO [stderr]   |
Dec 11 20:52:39.112 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 11 20:52:39.112 INFO [stderr] 
Dec 11 20:52:39.112 INFO [stderr] warning: value assigned to `tail_vertx` is never read
Dec 11 20:52:39.112 INFO [stderr]   --> src/lib.rs:34:14
Dec 11 20:52:39.112 INFO [stderr]    |
Dec 11 20:52:39.112 INFO [stderr] 34 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 11 20:52:39.112 INFO [stderr]    |              ^^^^^^^^^^
Dec 11 20:52:39.112 INFO [stderr]    |
Dec 11 20:52:39.112 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 11 20:52:39.112 INFO [stderr] 
Dec 11 20:52:39.112 INFO [stderr] warning: value assigned to `head_vertx` is never read
Dec 11 20:52:39.112 INFO [stderr]   --> src/lib.rs:34:30
Dec 11 20:52:39.112 INFO [stderr]    |
Dec 11 20:52:39.112 INFO [stderr] 34 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 11 20:52:39.113 INFO [stderr]    |                              ^^^^^^^^^^
Dec 11 20:52:39.113 INFO [stderr] 
Dec 11 20:52:39.113 INFO [stderr] warning: value assigned to `tail_vertx` is never read
Dec 11 20:52:39.113 INFO [stderr]    --> src/lib.rs:137:14
Dec 11 20:52:39.113 INFO [stderr]     |
Dec 11 20:52:39.113 INFO [stderr] 137 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 11 20:52:39.113 INFO [stderr]     |              ^^^^^^^^^^
Dec 11 20:52:39.113 INFO [stderr] 
Dec 11 20:52:39.113 INFO [stderr] warning: value assigned to `head_vertx` is never read
Dec 11 20:52:39.113 INFO [stderr]    --> src/lib.rs:137:30
Dec 11 20:52:39.113 INFO [stderr]     |
Dec 11 20:52:39.113 INFO [stderr] 137 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 11 20:52:39.113 INFO [stderr]     |                              ^^^^^^^^^^
Dec 11 20:52:39.113 INFO [stderr] 
Dec 11 20:52:39.192 INFO [stderr] warning: crate `kosarajuSCC` should have a snake case name such as `kosaraju_scc`
Dec 11 20:52:39.192 INFO [stderr]   |
Dec 11 20:52:39.192 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 11 20:52:39.192 INFO [stderr] 
Dec 11 20:52:39.556 INFO [stderr] warning: unused import: `std::fs::File`
Dec 11 20:52:39.556 INFO [stderr]  --> src/main.rs:2:5
Dec 11 20:52:39.556 INFO [stderr]   |
Dec 11 20:52:39.556 INFO [stderr] 2 | use std::fs::File;
Dec 11 20:52:39.556 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 11 20:52:39.556 INFO [stderr]   |
Dec 11 20:52:39.556 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 20:52:39.556 INFO [stderr] 
Dec 11 20:52:39.584 INFO [stderr] warning: unused import: `std::fs::File`
Dec 11 20:52:39.584 INFO [stderr]  --> src/main.rs:2:5
Dec 11 20:52:39.584 INFO [stderr]   |
Dec 11 20:52:39.584 INFO [stderr] 2 | use std::fs::File;
Dec 11 20:52:39.584 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 11 20:52:39.584 INFO [stderr]   |
Dec 11 20:52:39.584 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 20:52:39.584 INFO [stderr] 
Dec 11 20:52:39.589 INFO [stderr] warning: crate `kosarajuSCC` should have a snake case name such as `kosaraju_scc`
Dec 11 20:52:39.589 INFO [stderr]   |
Dec 11 20:52:39.589 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 11 20:52:39.589 INFO [stderr] 
Dec 11 20:52:39.652 INFO [stderr] warning: crate `kosarajuSCC` should have a snake case name such as `kosaraju_scc`
Dec 11 20:52:39.652 INFO [stderr]   |
Dec 11 20:52:39.652 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 11 20:52:39.652 INFO [stderr] 
Dec 11 20:52:39.684 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.38s
Dec 11 20:52:39.684 INFO [stderr] su: No module specific data is present
Dec 11 20:52:40.400 INFO running `"docker" "inspect" "21496d8a4a5a63cec6ca2702075ad59861779bb39092ebd06bb063e62b0349ba"`
Dec 11 20:52:40.770 INFO running `"docker" "rm" "-f" "21496d8a4a5a63cec6ca2702075ad59861779bb39092ebd06bb063e62b0349ba"`
Dec 11 20:52:41.056 INFO [stdout] 21496d8a4a5a63cec6ca2702075ad59861779bb39092ebd06bb063e62b0349ba