[INFO] crate healthy 0.0.0 is already in cache
[INFO] extracting crate healthy 0.0.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/healthy/0.0.0
[INFO] extracting crate healthy 0.0.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/healthy/0.0.0
[INFO] validating manifest of healthy-0.0.0 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 healthy-0.0.0 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 healthy-0.0.0
[INFO] finished frobbing healthy-0.0.0
[INFO] frobbed toml for healthy-0.0.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/healthy/0.0.0/Cargo.toml
[INFO] started frobbing healthy-0.0.0
[INFO] finished frobbing healthy-0.0.0
[INFO] frobbed toml for healthy-0.0.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/healthy/0.0.0/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 healthy-0.0.0 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/healthy/0.0.0:/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] dfb0b6f6feb449c705d2df0f2d01cb31cf88628f9f67426983535a1a7cc8e4ac
[INFO] running `"docker" "start" "-a" "dfb0b6f6feb449c705d2df0f2d01cb31cf88628f9f67426983535a1a7cc8e4ac"`
[INFO] [stderr]    Compiling email v0.0.20
[INFO] [stderr]    Compiling app_dirs v1.2.1
[INFO] [stderr]    Compiling uuid v0.4.0
[INFO] [stderr]    Compiling lettre v0.6.2
[INFO] [stderr]    Compiling healthy v0.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.91s
[INFO] running `"docker" "inspect" "dfb0b6f6feb449c705d2df0f2d01cb31cf88628f9f67426983535a1a7cc8e4ac"`
[INFO] running `"docker" "rm" "-f" "dfb0b6f6feb449c705d2df0f2d01cb31cf88628f9f67426983535a1a7cc8e4ac"`
[INFO] [stdout] dfb0b6f6feb449c705d2df0f2d01cb31cf88628f9f67426983535a1a7cc8e4ac
[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/healthy/0.0.0:/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] 6f24cfa7595f6e3c1154a23bebac3bee825bc9eb1ffd83ab8c1513360ecdc40a
[INFO] running `"docker" "start" "-a" "6f24cfa7595f6e3c1154a23bebac3bee825bc9eb1ffd83ab8c1513360ecdc40a"`
[INFO] [stderr]    Compiling healthy v0.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
[INFO] [stderr]  --> examples/read_env.rs:4:13
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let u = env::home_dir().map(|dir| dir.join(std::path::PathBuf::from("foo"))).unwrap();
[INFO] [stderr]   |             ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> examples/read_file.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     env_logger::init();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.82s
[INFO] running `"docker" "inspect" "6f24cfa7595f6e3c1154a23bebac3bee825bc9eb1ffd83ab8c1513360ecdc40a"`
[INFO] running `"docker" "rm" "-f" "6f24cfa7595f6e3c1154a23bebac3bee825bc9eb1ffd83ab8c1513360ecdc40a"`
[INFO] [stdout] 6f24cfa7595f6e3c1154a23bebac3bee825bc9eb1ffd83ab8c1513360ecdc40a
[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/healthy/0.0.0:/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] 8e057257a0470974670e599548b5323315547676d42bab30e62b9b5423f49d7d
[INFO] running `"docker" "start" "-a" "8e057257a0470974670e599548b5323315547676d42bab30e62b9b5423f49d7d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/healthy-3da6b1431b7ae98a
[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" "8e057257a0470974670e599548b5323315547676d42bab30e62b9b5423f49d7d"`
[INFO] running `"docker" "rm" "-f" "8e057257a0470974670e599548b5323315547676d42bab30e62b9b5423f49d7d"`
[INFO] [stdout] 8e057257a0470974670e599548b5323315547676d42bab30e62b9b5423f49d7d