[INFO] crate guessing_game_test_123 0.1.0 is already in cache
[INFO] extracting crate guessing_game_test_123 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/guessing_game_test_123/0.1.0
[INFO] extracting crate guessing_game_test_123 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/guessing_game_test_123/0.1.0
[INFO] validating manifest of guessing_game_test_123-0.1.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of guessing_game_test_123-0.1.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing guessing_game_test_123-0.1.0
[INFO] finished frobbing guessing_game_test_123-0.1.0
[INFO] frobbed toml for guessing_game_test_123-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/guessing_game_test_123/0.1.0/Cargo.toml
[INFO] started frobbing guessing_game_test_123-0.1.0
[INFO] finished frobbing guessing_game_test_123-0.1.0
[INFO] frobbed toml for guessing_game_test_123-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/guessing_game_test_123/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing guessing_game_test_123-0.1.0 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/guessing_game_test_123/0.1.0:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] f7a1cc77ccdc4d0088df51315992118e061c90bbad34f1724b380d696175b87c
[INFO] running `"docker" "start" "-a" "f7a1cc77ccdc4d0088df51315992118e061c90bbad34f1724b380d696175b87c"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling guessing_game_test_123 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `c1`
[INFO] [stderr]   --> src/lib.rs:26:16
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) {
[INFO] [stderr]    |                ^^ help: consider prefixing with an underscore: `_c1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c2`
[INFO] [stderr]   --> src/lib.rs:26:34
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) {
[INFO] [stderr]    |                                  ^^ help: consider prefixing with an underscore: `_c2`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `"docker" "inspect" "f7a1cc77ccdc4d0088df51315992118e061c90bbad34f1724b380d696175b87c"`
[INFO] running `"docker" "rm" "-f" "f7a1cc77ccdc4d0088df51315992118e061c90bbad34f1724b380d696175b87c"`
[INFO] [stdout] f7a1cc77ccdc4d0088df51315992118e061c90bbad34f1724b380d696175b87c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/guessing_game_test_123/0.1.0:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] fe592e83c742fa3090df11b624221270a10801ac34b6b3ef5adcdd9ac13d6262
[INFO] running `"docker" "start" "-a" "fe592e83c742fa3090df11b624221270a10801ac34b6b3ef5adcdd9ac13d6262"`
[INFO] [stderr]    Compiling guessing_game_test_123 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `c1`
[INFO] [stderr]   --> src/lib.rs:26:16
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) {
[INFO] [stderr]    |                ^^ help: consider prefixing with an underscore: `_c1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c2`
[INFO] [stderr]   --> src/lib.rs:26:34
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) {
[INFO] [stderr]    |                                  ^^ help: consider prefixing with an underscore: `_c2`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `"docker" "inspect" "fe592e83c742fa3090df11b624221270a10801ac34b6b3ef5adcdd9ac13d6262"`
[INFO] running `"docker" "rm" "-f" "fe592e83c742fa3090df11b624221270a10801ac34b6b3ef5adcdd9ac13d6262"`
[INFO] [stdout] fe592e83c742fa3090df11b624221270a10801ac34b6b3ef5adcdd9ac13d6262
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/guessing_game_test_123/0.1.0:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 1bf8cf1913acc122f5b0bc6bc00bdc7f9cf3ff877cea77060912e4464b633de7
[INFO] running `"docker" "start" "-a" "1bf8cf1913acc122f5b0bc6bc00bdc7f9cf3ff877cea77060912e4464b633de7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/guessing_game_test_123-d73f52230bd584c3
[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] [stderr]    Doc-tests guessing_game_test_123
[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" "1bf8cf1913acc122f5b0bc6bc00bdc7f9cf3ff877cea77060912e4464b633de7"`
[INFO] running `"docker" "rm" "-f" "1bf8cf1913acc122f5b0bc6bc00bdc7f9cf3ff877cea77060912e4464b633de7"`
[INFO] [stdout] 1bf8cf1913acc122f5b0bc6bc00bdc7f9cf3ff877cea77060912e4464b633de7