Dec 11 20:52:39.275 INFO checking chrisshyi/kosarajuSCC against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 20:52:39.275 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-0/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 20:52:39.772 INFO [stdout] 048f4747745bb7508513653290ef695ebf3fc3b18cebaf4b94d4528bf8cef9b5
Dec 11 20:52:39.774 INFO running `"docker" "start" "-a" "048f4747745bb7508513653290ef695ebf3fc3b18cebaf4b94d4528bf8cef9b5"`
Dec 11 20:52:41.177 INFO [stderr] usermod: no changes
Dec 11 20:52:41.232 INFO [stderr]     Checking kosarajuSCC v0.1.0 (/source)
Dec 11 20:52:41.800 INFO [stderr] warning: value assigned to `tail_vertx` is never read
Dec 11 20:52:41.800 INFO [stderr]   --> src/lib.rs:34:14
Dec 11 20:52:41.800 INFO [stderr]    |
Dec 11 20:52:41.800 INFO [stderr] 34 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 11 20:52:41.800 INFO [stderr]    |              ^^^^^^^^^^
Dec 11 20:52:41.800 INFO [stderr]    |
Dec 11 20:52:41.800 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 11 20:52:41.800 INFO [stderr] 
Dec 11 20:52:41.800 INFO [stderr] warning: value assigned to `head_vertx` is never read
Dec 11 20:52:41.800 INFO [stderr]   --> src/lib.rs:34:30
Dec 11 20:52:41.800 INFO [stderr]    |
Dec 11 20:52:41.800 INFO [stderr] 34 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 11 20:52:41.800 INFO [stderr]    |                              ^^^^^^^^^^
Dec 11 20:52:41.800 INFO [stderr] 
Dec 11 20:52:41.800 INFO [stderr] warning: value assigned to `tail_vertx` is never read
Dec 11 20:52:41.800 INFO [stderr]    --> src/lib.rs:137:14
Dec 11 20:52:41.800 INFO [stderr]     |
Dec 11 20:52:41.800 INFO [stderr] 137 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 11 20:52:41.800 INFO [stderr]     |              ^^^^^^^^^^
Dec 11 20:52:41.800 INFO [stderr] 
Dec 11 20:52:41.800 INFO [stderr] warning: value assigned to `head_vertx` is never read
Dec 11 20:52:41.800 INFO [stderr]    --> src/lib.rs:137:30
Dec 11 20:52:41.800 INFO [stderr]     |
Dec 11 20:52:41.800 INFO [stderr] 137 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 11 20:52:41.800 INFO [stderr]     |                              ^^^^^^^^^^
Dec 11 20:52:41.800 INFO [stderr] 
Dec 11 20:52:41.832 INFO [stderr] warning: crate `kosarajuSCC` should have a snake case name such as `kosaraju_scc`
Dec 11 20:52:41.832 INFO [stderr]   |
Dec 11 20:52:41.832 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 11 20:52:41.832 INFO [stderr] 
Dec 11 20:52:42.036 INFO [stderr] warning: value assigned to `tail_vertx` is never read
Dec 11 20:52:42.036 INFO [stderr]   --> src/lib.rs:34:14
Dec 11 20:52:42.036 INFO [stderr]    |
Dec 11 20:52:42.036 INFO [stderr] 34 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 11 20:52:42.036 INFO [stderr]    |              ^^^^^^^^^^
Dec 11 20:52:42.036 INFO [stderr]    |
Dec 11 20:52:42.036 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 11 20:52:42.036 INFO [stderr] 
Dec 11 20:52:42.036 INFO [stderr] warning: value assigned to `head_vertx` is never read
Dec 11 20:52:42.036 INFO [stderr]   --> src/lib.rs:34:30
Dec 11 20:52:42.036 INFO [stderr]    |
Dec 11 20:52:42.036 INFO [stderr] 34 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 11 20:52:42.036 INFO [stderr]    |                              ^^^^^^^^^^
Dec 11 20:52:42.036 INFO [stderr] 
Dec 11 20:52:42.036 INFO [stderr] warning: value assigned to `tail_vertx` is never read
Dec 11 20:52:42.036 INFO [stderr]    --> src/lib.rs:137:14
Dec 11 20:52:42.036 INFO [stderr]     |
Dec 11 20:52:42.036 INFO [stderr] 137 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 11 20:52:42.036 INFO [stderr]     |              ^^^^^^^^^^
Dec 11 20:52:42.037 INFO [stderr] 
Dec 11 20:52:42.037 INFO [stderr] warning: value assigned to `head_vertx` is never read
Dec 11 20:52:42.037 INFO [stderr]    --> src/lib.rs:137:30
Dec 11 20:52:42.037 INFO [stderr]     |
Dec 11 20:52:42.037 INFO [stderr] 137 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 11 20:52:42.037 INFO [stderr]     |                              ^^^^^^^^^^
Dec 11 20:52:42.037 INFO [stderr] 
Dec 11 20:52:42.081 INFO [stderr] warning: crate `kosarajuSCC` should have a snake case name such as `kosaraju_scc`
Dec 11 20:52:42.081 INFO [stderr]   |
Dec 11 20:52:42.081 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 11 20:52:42.081 INFO [stderr] 
Dec 11 20:52:42.477 INFO [stderr] warning: unused import: `std::fs::File`
Dec 11 20:52:42.477 INFO [stderr]  --> src/main.rs:2:5
Dec 11 20:52:42.477 INFO [stderr]   |
Dec 11 20:52:42.477 INFO [stderr] 2 | use std::fs::File;
Dec 11 20:52:42.477 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 11 20:52:42.477 INFO [stderr]   |
Dec 11 20:52:42.477 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 20:52:42.477 INFO [stderr] 
Dec 11 20:52:42.492 INFO [stderr] warning: unused import: `std::fs::File`
Dec 11 20:52:42.492 INFO [stderr]  --> src/main.rs:2:5
Dec 11 20:52:42.492 INFO [stderr]   |
Dec 11 20:52:42.492 INFO [stderr] 2 | use std::fs::File;
Dec 11 20:52:42.492 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 11 20:52:42.492 INFO [stderr]   |
Dec 11 20:52:42.492 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 20:52:42.492 INFO [stderr] 
Dec 11 20:52:42.516 INFO [stderr] warning: crate `kosarajuSCC` should have a snake case name such as `kosaraju_scc`
Dec 11 20:52:42.516 INFO [stderr]   |
Dec 11 20:52:42.516 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 11 20:52:42.516 INFO [stderr] 
Dec 11 20:52:42.536 INFO [stderr] warning: crate `kosarajuSCC` should have a snake case name such as `kosaraju_scc`
Dec 11 20:52:42.536 INFO [stderr]   |
Dec 11 20:52:42.536 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 11 20:52:42.536 INFO [stderr] 
Dec 11 20:52:42.572 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.37s
Dec 11 20:52:42.575 INFO [stderr] su: No module specific data is present
Dec 11 20:52:43.648 INFO running `"docker" "inspect" "048f4747745bb7508513653290ef695ebf3fc3b18cebaf4b94d4528bf8cef9b5"`
Dec 11 20:52:43.904 INFO running `"docker" "rm" "-f" "048f4747745bb7508513653290ef695ebf3fc3b18cebaf4b94d4528bf8cef9b5"`
Dec 11 20:52:44.275 INFO [stdout] 048f4747745bb7508513653290ef695ebf3fc3b18cebaf4b94d4528bf8cef9b5