[INFO] crate artfuldolphinaddsone 0.1.0 is already in cache
[INFO] extracting crate artfuldolphinaddsone 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/artfuldolphinaddsone/0.1.0
[INFO] extracting crate artfuldolphinaddsone 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/artfuldolphinaddsone/0.1.0
[INFO] validating manifest of artfuldolphinaddsone-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 artfuldolphinaddsone-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 artfuldolphinaddsone-0.1.0
[INFO] finished frobbing artfuldolphinaddsone-0.1.0
[INFO] frobbed toml for artfuldolphinaddsone-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/artfuldolphinaddsone/0.1.0/Cargo.toml
[INFO] started frobbing artfuldolphinaddsone-0.1.0
[INFO] finished frobbing artfuldolphinaddsone-0.1.0
[INFO] frobbed toml for artfuldolphinaddsone-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/artfuldolphinaddsone/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing artfuldolphinaddsone-0.1.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/artfuldolphinaddsone/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 806001b33d83df8fc7cceef43639f14320aaeff769fb11b5c4b369609544e312
[INFO] running `"docker" "start" "-a" "806001b33d83df8fc7cceef43639f14320aaeff769fb11b5c4b369609544e312"`
[INFO] [stderr]    Compiling artfuldolphinaddsone v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `c1`
[INFO] [stderr]   --> src/lib.rs:44:16
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor {
[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:44:34
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor {
[INFO] [stderr]    |                                  ^^ help: consider prefixing with an underscore: `_c2`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [optimized + debuginfo] target(s) in 1.02s
[INFO] running `"docker" "inspect" "806001b33d83df8fc7cceef43639f14320aaeff769fb11b5c4b369609544e312"`
[INFO] running `"docker" "rm" "-f" "806001b33d83df8fc7cceef43639f14320aaeff769fb11b5c4b369609544e312"`
[INFO] [stdout] 806001b33d83df8fc7cceef43639f14320aaeff769fb11b5c4b369609544e312
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/artfuldolphinaddsone/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 288cd6cd8e15df67c49c399ef7924c1e2a5e896b02d8d5b25c4b7a02c9025e00
[INFO] running `"docker" "start" "-a" "288cd6cd8e15df67c49c399ef7924c1e2a5e896b02d8d5b25c4b7a02c9025e00"`
[INFO] [stderr]    Compiling artfuldolphinaddsone v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `c1`
[INFO] [stderr]   --> src/lib.rs:44:16
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor {
[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:44:34
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor {
[INFO] [stderr]    |                                  ^^ help: consider prefixing with an underscore: `_c2`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [optimized + debuginfo] target(s) in 0.96s
[INFO] running `"docker" "inspect" "288cd6cd8e15df67c49c399ef7924c1e2a5e896b02d8d5b25c4b7a02c9025e00"`
[INFO] running `"docker" "rm" "-f" "288cd6cd8e15df67c49c399ef7924c1e2a5e896b02d8d5b25c4b7a02c9025e00"`
[INFO] [stdout] 288cd6cd8e15df67c49c399ef7924c1e2a5e896b02d8d5b25c4b7a02c9025e00
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/artfuldolphinaddsone/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] ff2e4f05b73d5d9e62ca29a27855466581504e06acdf15e5944417c91b6516f6
[INFO] running `"docker" "start" "-a" "ff2e4f05b73d5d9e62ca29a27855466581504e06acdf15e5944417c91b6516f6"`
[INFO] [stderr]     Finished dev [optimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/artfuldolphinaddsone-8cf8bc93a9e2e98c
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/artfuldolphinaddsone-98d06dc2286af517
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests artfuldolphinaddsone
[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] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - add_one (line 14) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - add_one (line 14) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `crates`
[INFO] [stdout]  --> src/lib.rs:17:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | assert_eq!(6, crates::add_one(5));
[INFO] [stdout]   |               ^^^^^^ use of undeclared type or module `crates`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - add_one (line 14)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `"docker" "inspect" "ff2e4f05b73d5d9e62ca29a27855466581504e06acdf15e5944417c91b6516f6"`
[INFO] running `"docker" "rm" "-f" "ff2e4f05b73d5d9e62ca29a27855466581504e06acdf15e5944417c91b6516f6"`
[INFO] [stdout] ff2e4f05b73d5d9e62ca29a27855466581504e06acdf15e5944417c91b6516f6