[INFO] crate pwat 0.1.1 is already in cache
[INFO] extracting crate pwat 0.1.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/pwat/0.1.1
[INFO] extracting crate pwat 0.1.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/pwat/0.1.1
[INFO] validating manifest of pwat-0.1.1 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 pwat-0.1.1 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 pwat-0.1.1
[INFO] finished frobbing pwat-0.1.1
[INFO] frobbed toml for pwat-0.1.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/pwat/0.1.1/Cargo.toml
[INFO] started frobbing pwat-0.1.1
[INFO] finished frobbing pwat-0.1.1
[INFO] frobbed toml for pwat-0.1.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/pwat/0.1.1/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 pwat-0.1.1 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/pwat/0.1.1:/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] db78c093f803cb495e1c60698ca2d0d71b01cdddb484b3c52862f4bf112b4d4b
[INFO] running `"docker" "start" "-a" "db78c093f803cb495e1c60698ca2d0d71b01cdddb484b3c52862f4bf112b4d4b"`
[INFO] [stderr]    Compiling termios v0.0.5
[INFO] [stderr]    Compiling rpassword v0.0.4
[INFO] [stderr]    Compiling pwat v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:20:7
[INFO] [stderr]    |
[INFO] [stderr] 20 |       stdout().flush();
[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 1.23s
[INFO] running `"docker" "inspect" "db78c093f803cb495e1c60698ca2d0d71b01cdddb484b3c52862f4bf112b4d4b"`
[INFO] running `"docker" "rm" "-f" "db78c093f803cb495e1c60698ca2d0d71b01cdddb484b3c52862f4bf112b4d4b"`
[INFO] [stdout] db78c093f803cb495e1c60698ca2d0d71b01cdddb484b3c52862f4bf112b4d4b
[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/pwat/0.1.1:/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] a15a023c9346714dad8310c73c9ee45ed174ac2d77fc194a31ccc90d9755d938
[INFO] running `"docker" "start" "-a" "a15a023c9346714dad8310c73c9ee45ed174ac2d77fc194a31ccc90d9755d938"`
[INFO] [stderr]    Compiling pwat v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:20:7
[INFO] [stderr]    |
[INFO] [stderr] 20 |       stdout().flush();
[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 0.46s
[INFO] running `"docker" "inspect" "a15a023c9346714dad8310c73c9ee45ed174ac2d77fc194a31ccc90d9755d938"`
[INFO] running `"docker" "rm" "-f" "a15a023c9346714dad8310c73c9ee45ed174ac2d77fc194a31ccc90d9755d938"`
[INFO] [stdout] a15a023c9346714dad8310c73c9ee45ed174ac2d77fc194a31ccc90d9755d938
[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/pwat/0.1.1:/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] 2425a5469360711fecbd9f5d2629f5bfc50468ba7ed186221a439211d640a4e9
[INFO] running `"docker" "start" "-a" "2425a5469360711fecbd9f5d2629f5bfc50468ba7ed186221a439211d640a4e9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/pwat-2159f0c26d0114c8
[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" "2425a5469360711fecbd9f5d2629f5bfc50468ba7ed186221a439211d640a4e9"`
[INFO] running `"docker" "rm" "-f" "2425a5469360711fecbd9f5d2629f5bfc50468ba7ed186221a439211d640a4e9"`
[INFO] [stdout] 2425a5469360711fecbd9f5d2629f5bfc50468ba7ed186221a439211d640a4e9