[INFO] crate rpassword 3.0.2 is already in cache
[INFO] extracting crate rpassword 3.0.2 into work/ex/beta-1.37-6/sources/1.36.0/reg/rpassword/3.0.2
[INFO] extracting crate rpassword 3.0.2 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/rpassword/3.0.2
[INFO] validating manifest of rpassword-3.0.2 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rpassword-3.0.2 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rpassword-3.0.2
[INFO] finished frobbing rpassword-3.0.2
[INFO] frobbed toml for rpassword-3.0.2 written to work/ex/beta-1.37-6/sources/1.36.0/reg/rpassword/3.0.2/Cargo.toml
[INFO] started frobbing rpassword-3.0.2
[INFO] finished frobbing rpassword-3.0.2
[INFO] frobbed toml for rpassword-3.0.2 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/rpassword/3.0.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing rpassword-3.0.2 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/rpassword/3.0.2:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] ae589e22ac7b7e0e1f28a9379eef234e6278589e287ab16947df69e94b6b6666
[INFO] running `"docker" "start" "-a" "ae589e22ac7b7e0e1f28a9379eef234e6278589e287ab16947df69e94b6b6666"`
[INFO] [stderr]    Compiling rpassword v3.0.2 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:137:31
[INFO] [stderr]     |
[INFO] [stderr] 137 |                 Source::Stdin(mut stdin) => stdin.read_line(&mut password),
[INFO] [stderr]     |                               ----^^^^^
[INFO] [stderr]     |                               |
[INFO] [stderr]     |                               help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `"docker" "inspect" "ae589e22ac7b7e0e1f28a9379eef234e6278589e287ab16947df69e94b6b6666"`
[INFO] running `"docker" "rm" "-f" "ae589e22ac7b7e0e1f28a9379eef234e6278589e287ab16947df69e94b6b6666"`
[INFO] [stdout] ae589e22ac7b7e0e1f28a9379eef234e6278589e287ab16947df69e94b6b6666
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/rpassword/3.0.2:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] ae851b14f756d98aa8c4c7ccf6c4651f561ad40e62dc6e380669e86d80528727
[INFO] running `"docker" "start" "-a" "ae851b14f756d98aa8c4c7ccf6c4651f561ad40e62dc6e380669e86d80528727"`
[INFO] [stderr]    Compiling rpassword v3.0.2 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:137:31
[INFO] [stderr]     |
[INFO] [stderr] 137 |                 Source::Stdin(mut stdin) => stdin.read_line(&mut password),
[INFO] [stderr]     |                               ----^^^^^
[INFO] [stderr]     |                               |
[INFO] [stderr]     |                               help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.10s
[INFO] running `"docker" "inspect" "ae851b14f756d98aa8c4c7ccf6c4651f561ad40e62dc6e380669e86d80528727"`
[INFO] running `"docker" "rm" "-f" "ae851b14f756d98aa8c4c7ccf6c4651f561ad40e62dc6e380669e86d80528727"`
[INFO] [stdout] ae851b14f756d98aa8c4c7ccf6c4651f561ad40e62dc6e380669e86d80528727
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/rpassword/3.0.2:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] f9b7d2c2409464bb79ef32bc5381a0e33eaef9357bb68443b17965dae586e7bc
[INFO] running `"docker" "start" "-a" "f9b7d2c2409464bb79ef32bc5381a0e33eaef9357bb68443b17965dae586e7bc"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rpassword-3a6583c52c322351
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::can_read_from_redirected_input ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/no_terminal-839047ac271276a4
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests rpassword
[INFO] [stdout] test can_read_from_redirected_input ... ok
[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" "f9b7d2c2409464bb79ef32bc5381a0e33eaef9357bb68443b17965dae586e7bc"`
[INFO] running `"docker" "rm" "-f" "f9b7d2c2409464bb79ef32bc5381a0e33eaef9357bb68443b17965dae586e7bc"`
[INFO] [stdout] f9b7d2c2409464bb79ef32bc5381a0e33eaef9357bb68443b17965dae586e7bc