Dec 18 02:27:52.378 INFO checking chrisshyi/kosarajuSCC against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 02:27:52.378 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/chrisshyi/kosarajuSCC:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 02:27:52.848 INFO [stdout] 446a04ba44e99d03d3ac6c2a54d9eb8f1599db9efbc78a786c9630b227b14a97
Dec 18 02:27:52.854 INFO running `"docker" "start" "-a" "446a04ba44e99d03d3ac6c2a54d9eb8f1599db9efbc78a786c9630b227b14a97"`
Dec 18 02:27:54.708 INFO [stderr]     Checking kosarajuSCC v0.1.0 (/opt/crater/workdir)
Dec 18 02:27:55.136 INFO [stderr] warning: value assigned to `tail_vertx` is never read
Dec 18 02:27:55.136 INFO [stderr]   --> src/lib.rs:34:14
Dec 18 02:27:55.136 INFO [stderr]    |
Dec 18 02:27:55.136 INFO [stderr] 34 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 18 02:27:55.136 INFO [stderr]    |              ^^^^^^^^^^
Dec 18 02:27:55.136 INFO [stderr]    |
Dec 18 02:27:55.136 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 18 02:27:55.136 INFO [stderr] 
Dec 18 02:27:55.136 INFO [stderr] warning: value assigned to `head_vertx` is never read
Dec 18 02:27:55.136 INFO [stderr]   --> src/lib.rs:34:30
Dec 18 02:27:55.136 INFO [stderr]    |
Dec 18 02:27:55.136 INFO [stderr] 34 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 18 02:27:55.136 INFO [stderr]    |                              ^^^^^^^^^^
Dec 18 02:27:55.136 INFO [stderr] 
Dec 18 02:27:55.136 INFO [stderr] warning: value assigned to `tail_vertx` is never read
Dec 18 02:27:55.136 INFO [stderr]    --> src/lib.rs:137:14
Dec 18 02:27:55.136 INFO [stderr]     |
Dec 18 02:27:55.136 INFO [stderr] 137 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 18 02:27:55.136 INFO [stderr]     |              ^^^^^^^^^^
Dec 18 02:27:55.136 INFO [stderr] 
Dec 18 02:27:55.136 INFO [stderr] warning: value assigned to `head_vertx` is never read
Dec 18 02:27:55.136 INFO [stderr]    --> src/lib.rs:137:30
Dec 18 02:27:55.136 INFO [stderr]     |
Dec 18 02:27:55.136 INFO [stderr] 137 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 18 02:27:55.136 INFO [stderr]     |                              ^^^^^^^^^^
Dec 18 02:27:55.136 INFO [stderr] 
Dec 18 02:27:55.136 INFO [stderr] warning: crate `kosarajuSCC` should have a snake case name such as `kosaraju_scc`
Dec 18 02:27:55.136 INFO [stderr]   |
Dec 18 02:27:55.136 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 18 02:27:55.136 INFO [stderr] 
Dec 18 02:27:55.456 INFO [stderr] warning: value assigned to `tail_vertx` is never read
Dec 18 02:27:55.456 INFO [stderr]   --> src/lib.rs:34:14
Dec 18 02:27:55.456 INFO [stderr]    |
Dec 18 02:27:55.456 INFO [stderr] 34 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 18 02:27:55.456 INFO [stderr]    |              ^^^^^^^^^^
Dec 18 02:27:55.456 INFO [stderr]    |
Dec 18 02:27:55.456 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 18 02:27:55.456 INFO [stderr] 
Dec 18 02:27:55.456 INFO [stderr] warning: value assigned to `head_vertx` is never read
Dec 18 02:27:55.456 INFO [stderr]   --> src/lib.rs:34:30
Dec 18 02:27:55.456 INFO [stderr]    |
Dec 18 02:27:55.456 INFO [stderr] 34 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 18 02:27:55.456 INFO [stderr]    |                              ^^^^^^^^^^
Dec 18 02:27:55.456 INFO [stderr] 
Dec 18 02:27:55.456 INFO [stderr] warning: value assigned to `tail_vertx` is never read
Dec 18 02:27:55.456 INFO [stderr]    --> src/lib.rs:137:14
Dec 18 02:27:55.456 INFO [stderr]     |
Dec 18 02:27:55.456 INFO [stderr] 137 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 18 02:27:55.456 INFO [stderr]     |              ^^^^^^^^^^
Dec 18 02:27:55.456 INFO [stderr] 
Dec 18 02:27:55.456 INFO [stderr] warning: value assigned to `head_vertx` is never read
Dec 18 02:27:55.456 INFO [stderr]    --> src/lib.rs:137:30
Dec 18 02:27:55.456 INFO [stderr]     |
Dec 18 02:27:55.456 INFO [stderr] 137 |     let (mut tail_vertx, mut head_vertx) = (0, 0); // Compiler won't allow use of uninitialized variables
Dec 18 02:27:55.456 INFO [stderr]     |                              ^^^^^^^^^^
Dec 18 02:27:55.456 INFO [stderr] 
Dec 18 02:27:55.552 INFO [stderr] warning: unused import: `std::fs::File`
Dec 18 02:27:55.552 INFO [stderr]  --> src/main.rs:2:5
Dec 18 02:27:55.552 INFO [stderr]   |
Dec 18 02:27:55.552 INFO [stderr] 2 | use std::fs::File;
Dec 18 02:27:55.552 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 18 02:27:55.552 INFO [stderr]   |
Dec 18 02:27:55.552 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 02:27:55.552 INFO [stderr] 
Dec 18 02:27:55.617 INFO [stderr] warning: crate `kosarajuSCC` should have a snake case name such as `kosaraju_scc`
Dec 18 02:27:55.617 INFO [stderr]   |
Dec 18 02:27:55.617 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 18 02:27:55.617 INFO [stderr] 
Dec 18 02:27:55.632 INFO [stderr] warning: crate `kosarajuSCC` should have a snake case name such as `kosaraju_scc`
Dec 18 02:27:55.632 INFO [stderr]   |
Dec 18 02:27:55.632 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 18 02:27:55.632 INFO [stderr] 
Dec 18 02:27:55.744 INFO [stderr] warning: unused import: `std::fs::File`
Dec 18 02:27:55.744 INFO [stderr]  --> src/main.rs:2:5
Dec 18 02:27:55.744 INFO [stderr]   |
Dec 18 02:27:55.744 INFO [stderr] 2 | use std::fs::File;
Dec 18 02:27:55.744 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 18 02:27:55.744 INFO [stderr]   |
Dec 18 02:27:55.744 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 02:27:55.744 INFO [stderr] 
Dec 18 02:27:55.808 INFO [stderr] warning: crate `kosarajuSCC` should have a snake case name such as `kosaraju_scc`
Dec 18 02:27:55.808 INFO [stderr]   |
Dec 18 02:27:55.808 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 18 02:27:55.808 INFO [stderr] 
Dec 18 02:27:55.896 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.23s
Dec 18 02:27:56.448 INFO running `"docker" "inspect" "446a04ba44e99d03d3ac6c2a54d9eb8f1599db9efbc78a786c9630b227b14a97"`
Dec 18 02:27:56.842 INFO running `"docker" "rm" "-f" "446a04ba44e99d03d3ac6c2a54d9eb8f1599db9efbc78a786c9630b227b14a97"`
Dec 18 02:27:57.140 INFO [stdout] 446a04ba44e99d03d3ac6c2a54d9eb8f1599db9efbc78a786c9630b227b14a97