Dec 18 02:27:58.832 INFO checking chrisshyi/Karger-MinCut against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 02:27:58.832 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/chrisshyi/Karger-MinCut:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 02:27:59.266 INFO [stdout] 5f09a50e9242978b108c0c666b8ddc5d2680256b80b450d0fa1f6283320d62e6
Dec 18 02:27:59.276 INFO running `"docker" "start" "-a" "5f09a50e9242978b108c0c666b8ddc5d2680256b80b450d0fa1f6283320d62e6"`
Dec 18 02:28:00.780 INFO [stderr]     Checking rand_core v0.1.0-pre.0
Dec 18 02:28:01.328 INFO [stderr]     Checking rand v0.5.0-pre.0
Dec 18 02:28:03.380 INFO [stderr]     Checking karger-min-cut v0.1.0 (/opt/crater/workdir)
Dec 18 02:28:03.635 INFO [stderr] warning: unused import: `thread_rng`
Dec 18 02:28:03.635 INFO [stderr]  --> src/main.rs:2:48
Dec 18 02:28:03.635 INFO [stderr]   |
Dec 18 02:28:03.635 INFO [stderr] 2 | use std::collections::HashMap; use rand::{Rng, thread_rng};
Dec 18 02:28:03.635 INFO [stderr]   |                                                ^^^^^^^^^^
Dec 18 02:28:03.635 INFO [stderr]   |
Dec 18 02:28:03.635 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 02:28:03.635 INFO [stderr] 
Dec 18 02:28:03.705 INFO [stderr] warning: unused variable: `E`
Dec 18 02:28:03.705 INFO [stderr]    --> src/main.rs:128:17
Dec 18 02:28:03.705 INFO [stderr]     |
Dec 18 02:28:03.705 INFO [stderr] 128 |             Err(E) => panic!("line reading failure")
Dec 18 02:28:03.705 INFO [stderr]     |                 ^ help: consider using `_E` instead
Dec 18 02:28:03.705 INFO [stderr]     |
Dec 18 02:28:03.705 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 18 02:28:03.705 INFO [stderr] 
Dec 18 02:28:03.705 INFO [stderr] warning: unused variable: `num_vertx`
Dec 18 02:28:03.705 INFO [stderr]    --> src/main.rs:159:9
Dec 18 02:28:03.705 INFO [stderr]     |
Dec 18 02:28:03.705 INFO [stderr] 159 |     let num_vertx: f64 = active_vertx.len() as f64;
Dec 18 02:28:03.705 INFO [stderr]     |         ^^^^^^^^^ help: consider using `_num_vertx` instead
Dec 18 02:28:03.705 INFO [stderr] 
Dec 18 02:28:03.716 INFO [stderr] warning: unused import: `thread_rng`
Dec 18 02:28:03.716 INFO [stderr]  --> src/main.rs:2:48
Dec 18 02:28:03.716 INFO [stderr]   |
Dec 18 02:28:03.716 INFO [stderr] 2 | use std::collections::HashMap; use rand::{Rng, thread_rng};
Dec 18 02:28:03.716 INFO [stderr]   |                                                ^^^^^^^^^^
Dec 18 02:28:03.716 INFO [stderr]   |
Dec 18 02:28:03.716 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 02:28:03.716 INFO [stderr] 
Dec 18 02:28:03.724 INFO [stderr] warning: variable `E` should have a snake case name such as `e`
Dec 18 02:28:03.724 INFO [stderr]    --> src/main.rs:128:17
Dec 18 02:28:03.724 INFO [stderr]     |
Dec 18 02:28:03.724 INFO [stderr] 128 |             Err(E) => panic!("line reading failure")
Dec 18 02:28:03.724 INFO [stderr]     |                 ^
Dec 18 02:28:03.724 INFO [stderr]     |
Dec 18 02:28:03.724 INFO [stderr]     = note: #[warn(non_snake_case)] on by default
Dec 18 02:28:03.724 INFO [stderr] 
Dec 18 02:28:03.796 INFO [stderr] warning: unused variable: `E`
Dec 18 02:28:03.796 INFO [stderr]    --> src/main.rs:128:17
Dec 18 02:28:03.796 INFO [stderr]     |
Dec 18 02:28:03.796 INFO [stderr] 128 |             Err(E) => panic!("line reading failure")
Dec 18 02:28:03.796 INFO [stderr]     |                 ^ help: consider using `_E` instead
Dec 18 02:28:03.796 INFO [stderr]     |
Dec 18 02:28:03.796 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 18 02:28:03.798 INFO [stderr] 
Dec 18 02:28:03.798 INFO [stderr] warning: unused variable: `num_vertx`
Dec 18 02:28:03.798 INFO [stderr]    --> src/main.rs:159:9
Dec 18 02:28:03.798 INFO [stderr]     |
Dec 18 02:28:03.798 INFO [stderr] 159 |     let num_vertx: f64 = active_vertx.len() as f64;
Dec 18 02:28:03.798 INFO [stderr]     |         ^^^^^^^^^ help: consider using `_num_vertx` instead
Dec 18 02:28:03.798 INFO [stderr] 
Dec 18 02:28:03.817 INFO [stderr] warning: variable `E` should have a snake case name such as `e`
Dec 18 02:28:03.817 INFO [stderr]    --> src/main.rs:128:17
Dec 18 02:28:03.817 INFO [stderr]     |
Dec 18 02:28:03.817 INFO [stderr] 128 |             Err(E) => panic!("line reading failure")
Dec 18 02:28:03.817 INFO [stderr]     |                 ^
Dec 18 02:28:03.817 INFO [stderr]     |
Dec 18 02:28:03.817 INFO [stderr]     = note: #[warn(non_snake_case)] on by default
Dec 18 02:28:03.817 INFO [stderr] 
Dec 18 02:28:03.880 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.12s
Dec 18 02:28:04.382 INFO running `"docker" "inspect" "5f09a50e9242978b108c0c666b8ddc5d2680256b80b450d0fa1f6283320d62e6"`
Dec 18 02:28:04.700 INFO running `"docker" "rm" "-f" "5f09a50e9242978b108c0c666b8ddc5d2680256b80b450d0fa1f6283320d62e6"`
Dec 18 02:28:05.035 INFO [stdout] 5f09a50e9242978b108c0c666b8ddc5d2680256b80b450d0fa1f6283320d62e6