[INFO] crate assayer 0.2.2 is already in cache
[INFO] extracting crate assayer 0.2.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/assayer/0.2.2
[INFO] extracting crate assayer 0.2.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/assayer/0.2.2
[INFO] validating manifest of assayer-0.2.2 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 assayer-0.2.2 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 assayer-0.2.2
[INFO] finished frobbing assayer-0.2.2
[INFO] frobbed toml for assayer-0.2.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/assayer/0.2.2/Cargo.toml
[INFO] started frobbing assayer-0.2.2
[INFO] finished frobbing assayer-0.2.2
[INFO] frobbed toml for assayer-0.2.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/assayer/0.2.2/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 assayer-0.2.2 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-0/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/assayer/0.2.2:/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] b828d84c014fc4bf9da64abd8bcb459c9a62b4f15bb381716db4f7203c2980f5
[INFO] running `"docker" "start" "-a" "b828d84c014fc4bf9da64abd8bcb459c9a62b4f15bb381716db4f7203c2980f5"`
[INFO] [stderr]    Compiling assayer v0.2.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `"docker" "inspect" "b828d84c014fc4bf9da64abd8bcb459c9a62b4f15bb381716db4f7203c2980f5"`
[INFO] running `"docker" "rm" "-f" "b828d84c014fc4bf9da64abd8bcb459c9a62b4f15bb381716db4f7203c2980f5"`
[INFO] [stdout] b828d84c014fc4bf9da64abd8bcb459c9a62b4f15bb381716db4f7203c2980f5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/assayer/0.2.2:/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] 4de1e533983cd443913174ee6669146716b6063b5f8d6efd66645460a114ba97
[INFO] running `"docker" "start" "-a" "4de1e533983cd443913174ee6669146716b6063b5f8d6efd66645460a114ba97"`
[INFO] [stderr]    Compiling assayer v0.2.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `"docker" "inspect" "4de1e533983cd443913174ee6669146716b6063b5f8d6efd66645460a114ba97"`
[INFO] running `"docker" "rm" "-f" "4de1e533983cd443913174ee6669146716b6063b5f8d6efd66645460a114ba97"`
[INFO] [stdout] 4de1e533983cd443913174ee6669146716b6063b5f8d6efd66645460a114ba97
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/assayer/0.2.2:/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] ccfa8c1df226cf581bb9b5fef1b6e7e81381810aeff9a90b851166dbe398a8d2
[INFO] running `"docker" "start" "-a" "ccfa8c1df226cf581bb9b5fef1b6e7e81381810aeff9a90b851166dbe398a8d2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/assayer-d08f24ab6044ad27
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test unit_tests::string_validator_mut_ref_handles_non_empty_input ... ok
[INFO] [stdout] test unit_tests::string_validator_ref_handles_empty_input ... ok
[INFO] [stdout] test unit_tests::string_validator_ref_handles_non_empty_input ... ok
[INFO] [stdout] test unit_tests::string_validator_handles_non_empty_input ... ok
[INFO] [stdout] test unit_tests::string_validator_mut_ref_handles_empty_input ... ok
[INFO] [stdout] test unit_tests::string_validator_handles_empty_input ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests assayer
[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" "ccfa8c1df226cf581bb9b5fef1b6e7e81381810aeff9a90b851166dbe398a8d2"`
[INFO] running `"docker" "rm" "-f" "ccfa8c1df226cf581bb9b5fef1b6e7e81381810aeff9a90b851166dbe398a8d2"`
[INFO] [stdout] ccfa8c1df226cf581bb9b5fef1b6e7e81381810aeff9a90b851166dbe398a8d2