[INFO] updating cached repository lcagustini/thread_test
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/lcagustini/thread_test
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/lcagustini/thread_test" "work/ex/beta-1.37-6/sources/1.36.0/gh/lcagustini/thread_test"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/lcagustini/thread_test'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lcagustini/thread_test" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lcagustini/thread_test"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lcagustini/thread_test'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 588badc4bad36cef63260385a407f807c8330c89
[INFO] sha for GitHub repo lcagustini/thread_test: 588badc4bad36cef63260385a407f807c8330c89
[INFO] validating manifest of lcagustini/thread_test on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of lcagustini/thread_test on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing lcagustini/thread_test
[INFO] finished frobbing lcagustini/thread_test
[INFO] frobbed toml for lcagustini/thread_test written to work/ex/beta-1.37-6/sources/1.36.0/gh/lcagustini/thread_test/Cargo.toml
[INFO] started frobbing lcagustini/thread_test
[INFO] finished frobbing lcagustini/thread_test
[INFO] frobbed toml for lcagustini/thread_test written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lcagustini/thread_test/Cargo.toml
[INFO] crate lcagustini/thread_test already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing lcagustini/thread_test against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/lcagustini/thread_test:/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=warn" "-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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 9324faa279e75783b2050089b86d86bfcff86552c4f99b96759c120797f9bf81
[INFO] running `"docker" "start" "-a" "9324faa279e75783b2050089b86d86bfcff86552c4f99b96759c120797f9bf81"`
[INFO] [stderr]    Compiling sdl2 v0.32.1 (https://github.com/AngryLawyer/rust-sdl2#31e879ad)
[INFO] [stderr]    Compiling sdl2-sys v0.32.5 (https://github.com/AngryLawyer/rust-sdl2#31e879ad)
[INFO] [stderr]    Compiling test_world v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `rand::Rng`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use rand::Rng;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rng`
[INFO] [stderr]   --> src/main.rs:36:29
[INFO] [stderr]    |
[INFO] [stderr] 36 |                     let mut rng = rand::thread_rng();
[INFO] [stderr]    |                             ^^^ help: consider prefixing with an underscore: `_rng`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |     for i in 0..POINTS_LEN {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:36:25
[INFO] [stderr]    |
[INFO] [stderr] 36 |                     let mut rng = rand::thread_rng();
[INFO] [stderr]    |                         ----^^^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.56s
[INFO] running `"docker" "inspect" "9324faa279e75783b2050089b86d86bfcff86552c4f99b96759c120797f9bf81"`
[INFO] running `"docker" "rm" "-f" "9324faa279e75783b2050089b86d86bfcff86552c4f99b96759c120797f9bf81"`
[INFO] [stdout] 9324faa279e75783b2050089b86d86bfcff86552c4f99b96759c120797f9bf81
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/lcagustini/thread_test:/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=warn" "-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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 6c5fd0079c6001c0b4701f3d5f41c6821330a52de79739bf3b1851084c027104
[INFO] running `"docker" "start" "-a" "6c5fd0079c6001c0b4701f3d5f41c6821330a52de79739bf3b1851084c027104"`
[INFO] [stderr]    Compiling test_world v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `rand::Rng`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use rand::Rng;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rng`
[INFO] [stderr]   --> src/main.rs:36:29
[INFO] [stderr]    |
[INFO] [stderr] 36 |                     let mut rng = rand::thread_rng();
[INFO] [stderr]    |                             ^^^ help: consider prefixing with an underscore: `_rng`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |     for i in 0..POINTS_LEN {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:36:25
[INFO] [stderr]    |
[INFO] [stderr] 36 |                     let mut rng = rand::thread_rng();
[INFO] [stderr]    |                         ----^^^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `"docker" "inspect" "6c5fd0079c6001c0b4701f3d5f41c6821330a52de79739bf3b1851084c027104"`
[INFO] running `"docker" "rm" "-f" "6c5fd0079c6001c0b4701f3d5f41c6821330a52de79739bf3b1851084c027104"`
[INFO] [stdout] 6c5fd0079c6001c0b4701f3d5f41c6821330a52de79739bf3b1851084c027104
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/lcagustini/thread_test:/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=warn" "-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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 31768e2184c5e01fd2bbd23dcee1d0a3ffdfeacb27c41c67f98d6168e02700b5
[INFO] running `"docker" "start" "-a" "31768e2184c5e01fd2bbd23dcee1d0a3ffdfeacb27c41c67f98d6168e02700b5"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/test_world-ac6396d085675c6b
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "31768e2184c5e01fd2bbd23dcee1d0a3ffdfeacb27c41c67f98d6168e02700b5"`
[INFO] running `"docker" "rm" "-f" "31768e2184c5e01fd2bbd23dcee1d0a3ffdfeacb27c41c67f98d6168e02700b5"`
[INFO] [stdout] 31768e2184c5e01fd2bbd23dcee1d0a3ffdfeacb27c41c67f98d6168e02700b5