[INFO] crate machine-uid 0.1.0 is already in cache
[INFO] extracting crate machine-uid 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/machine-uid/0.1.0
[INFO] extracting crate machine-uid 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/machine-uid/0.1.0
[INFO] validating manifest of machine-uid-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 machine-uid-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 machine-uid-0.1.0
[INFO] finished frobbing machine-uid-0.1.0
[INFO] frobbed toml for machine-uid-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/machine-uid/0.1.0/Cargo.toml
[INFO] started frobbing machine-uid-0.1.0
[INFO] finished frobbing machine-uid-0.1.0
[INFO] frobbed toml for machine-uid-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/machine-uid/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 machine-uid-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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/machine-uid/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] 932d2dc36b55be8b94296a2ce0634acaf22e557d17a01a46cbd357df2a8f4b5c
[INFO] running `"docker" "start" "-a" "932d2dc36b55be8b94296a2ce0634acaf22e557d17a01a46cbd357df2a8f4b5c"`
[INFO] [stderr]    Compiling machine-uid v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:64:53
[INFO] [stderr]    |
[INFO] [stderr] 64 | fn read_file(file_path: &str) -> Result<String, Box<Error>> {
[INFO] [stderr]    |                                                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:83:51
[INFO] [stderr]    |
[INFO] [stderr] 83 |     pub fn get_machine_id() -> Result<String, Box<Error>> {
[INFO] [stderr]    |                                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `"docker" "inspect" "932d2dc36b55be8b94296a2ce0634acaf22e557d17a01a46cbd357df2a8f4b5c"`
[INFO] running `"docker" "rm" "-f" "932d2dc36b55be8b94296a2ce0634acaf22e557d17a01a46cbd357df2a8f4b5c"`
[INFO] [stdout] 932d2dc36b55be8b94296a2ce0634acaf22e557d17a01a46cbd357df2a8f4b5c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/machine-uid/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] d0c42804c0726f614f044cdb66f6e651c854511af25fc8dff5e1378fd2018693
[INFO] running `"docker" "start" "-a" "d0c42804c0726f614f044cdb66f6e651c854511af25fc8dff5e1378fd2018693"`
[INFO] [stderr]    Compiling machine-uid v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:64:53
[INFO] [stderr]    |
[INFO] [stderr] 64 | fn read_file(file_path: &str) -> Result<String, Box<Error>> {
[INFO] [stderr]    |                                                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:83:51
[INFO] [stderr]    |
[INFO] [stderr] 83 |     pub fn get_machine_id() -> Result<String, Box<Error>> {
[INFO] [stderr]    |                                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `"docker" "inspect" "d0c42804c0726f614f044cdb66f6e651c854511af25fc8dff5e1378fd2018693"`
[INFO] running `"docker" "rm" "-f" "d0c42804c0726f614f044cdb66f6e651c854511af25fc8dff5e1378fd2018693"`
[INFO] [stdout] d0c42804c0726f614f044cdb66f6e651c854511af25fc8dff5e1378fd2018693
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/machine-uid/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] 413f41107a631bf992b9bbc6a797ab49f1270a90093858239d1cd298f8057266
[INFO] running `"docker" "start" "-a" "413f41107a631bf992b9bbc6a797ab49f1270a90093858239d1cd298f8057266"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/machine_uid-19a71c3c8314fef0
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tests-1ed38b0bd3104dd6
[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 test_get ... ok
[INFO] [stderr]    Doc-tests machine-uid
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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" "413f41107a631bf992b9bbc6a797ab49f1270a90093858239d1cd298f8057266"`
[INFO] running `"docker" "rm" "-f" "413f41107a631bf992b9bbc6a797ab49f1270a90093858239d1cd298f8057266"`
[INFO] [stdout] 413f41107a631bf992b9bbc6a797ab49f1270a90093858239d1cd298f8057266