[INFO] crate rex-ucph 0.1.3 is already in cache
[INFO] extracting crate rex-ucph 0.1.3 into work/ex/beta-1.38-1/sources/1.37.0/reg/rex-ucph/0.1.3
[INFO] extracting crate rex-ucph 0.1.3 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rex-ucph/0.1.3
[INFO] validating manifest of rex-ucph-0.1.3 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 rex-ucph-0.1.3 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 rex-ucph-0.1.3
[INFO] finished frobbing rex-ucph-0.1.3
[INFO] frobbed toml for rex-ucph-0.1.3 written to work/ex/beta-1.38-1/sources/1.37.0/reg/rex-ucph/0.1.3/Cargo.toml
[INFO] started frobbing rex-ucph-0.1.3
[INFO] finished frobbing rex-ucph-0.1.3
[INFO] frobbed toml for rex-ucph-0.1.3 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rex-ucph/0.1.3/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 rex-ucph-0.1.3 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/rex-ucph/0.1.3:/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] c45a8c5a29afee1e8267d1402d07108134f40c03425e06b1e6beb2c434de9986
[INFO] running `"docker" "start" "-a" "c45a8c5a29afee1e8267d1402d07108134f40c03425e06b1e6beb2c434de9986"`
[INFO] [stderr]    Compiling serialport v3.3.0
[INFO] [stderr]    Compiling rex-ucph v0.1.3 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]   --> src/lib.rs:11:22
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::io::{Write, Read};
[INFO] [stderr]    |                      ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.39s
[INFO] running `"docker" "inspect" "c45a8c5a29afee1e8267d1402d07108134f40c03425e06b1e6beb2c434de9986"`
[INFO] running `"docker" "rm" "-f" "c45a8c5a29afee1e8267d1402d07108134f40c03425e06b1e6beb2c434de9986"`
[INFO] [stdout] c45a8c5a29afee1e8267d1402d07108134f40c03425e06b1e6beb2c434de9986
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/rex-ucph/0.1.3:/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] 7cfac59f25c8596d458c3cc972009d3ffdaa04e721f8dfd12cb4eae31a85f26b
[INFO] running `"docker" "start" "-a" "7cfac59f25c8596d458c3cc972009d3ffdaa04e721f8dfd12cb4eae31a85f26b"`
[INFO] [stderr]    Compiling rex-ucph v0.1.3 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]   --> src/lib.rs:11:22
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::io::{Write, Read};
[INFO] [stderr]    |                      ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `"docker" "inspect" "7cfac59f25c8596d458c3cc972009d3ffdaa04e721f8dfd12cb4eae31a85f26b"`
[INFO] running `"docker" "rm" "-f" "7cfac59f25c8596d458c3cc972009d3ffdaa04e721f8dfd12cb4eae31a85f26b"`
[INFO] [stdout] 7cfac59f25c8596d458c3cc972009d3ffdaa04e721f8dfd12cb4eae31a85f26b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/rex-ucph/0.1.3:/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] 56c8b8b800abc3fed4d4e9b9711e9862afe225146c69acc171729e705748b2b3
[INFO] running `"docker" "start" "-a" "56c8b8b800abc3fed4d4e9b9711e9862afe225146c69acc171729e705748b2b3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rex_ucph-70a73b3b67c83894
[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] [stderr]    Doc-tests rex-ucph
[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" "56c8b8b800abc3fed4d4e9b9711e9862afe225146c69acc171729e705748b2b3"`
[INFO] running `"docker" "rm" "-f" "56c8b8b800abc3fed4d4e9b9711e9862afe225146c69acc171729e705748b2b3"`
[INFO] [stdout] 56c8b8b800abc3fed4d4e9b9711e9862afe225146c69acc171729e705748b2b3