[INFO] crate mio-serial 3.2.14 is already in cache
[INFO] extracting crate mio-serial 3.2.14 into work/ex/beta-1.37-6/sources/1.36.0/reg/mio-serial/3.2.14
[INFO] extracting crate mio-serial 3.2.14 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/mio-serial/3.2.14
[INFO] validating manifest of mio-serial-3.2.14 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 mio-serial-3.2.14 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 mio-serial-3.2.14
[INFO] removed 0 missing examples
[INFO] finished frobbing mio-serial-3.2.14
[INFO] frobbed toml for mio-serial-3.2.14 written to work/ex/beta-1.37-6/sources/1.36.0/reg/mio-serial/3.2.14/Cargo.toml
[INFO] started frobbing mio-serial-3.2.14
[INFO] removed 0 missing examples
[INFO] finished frobbing mio-serial-3.2.14
[INFO] frobbed toml for mio-serial-3.2.14 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/mio-serial/3.2.14/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] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing mio-serial-3.2.14 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/mio-serial/3.2.14:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 9b452db19190327b21a2e280fb7276be746a8c19fb502d851d3782b55e4bc0fc
[INFO] running `"docker" "start" "-a" "9b452db19190327b21a2e280fb7276be746a8c19fb502d851d3782b55e4bc0fc"`
[INFO] [stderr]    Compiling mio-serial v3.2.14 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/unix.rs:387:41
[INFO] [stderr]     |
[INFO] [stderr] 387 |     fn try_clone(&self) -> ::Result<Box<SerialPort>> {
[INFO] [stderr]     |                                         ^^^^^^^^^^ help: use `dyn`: `dyn SerialPort`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `"docker" "inspect" "9b452db19190327b21a2e280fb7276be746a8c19fb502d851d3782b55e4bc0fc"`
[INFO] running `"docker" "rm" "-f" "9b452db19190327b21a2e280fb7276be746a8c19fb502d851d3782b55e4bc0fc"`
[INFO] [stdout] 9b452db19190327b21a2e280fb7276be746a8c19fb502d851d3782b55e4bc0fc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/mio-serial/3.2.14:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 21ed736f35d960a81bdfe7f314fb3cca67ca9492ea40e532e28f1d4f40b8b823
[INFO] running `"docker" "start" "-a" "21ed736f35d960a81bdfe7f314fb3cca67ca9492ea40e532e28f1d4f40b8b823"`
[INFO] [stderr]    Compiling mio-serial v3.2.14 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/unix.rs:387:41
[INFO] [stderr]     |
[INFO] [stderr] 387 |     fn try_clone(&self) -> ::Result<Box<SerialPort>> {
[INFO] [stderr]     |                                         ^^^^^^^^^^ help: use `dyn`: `dyn SerialPort`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `"docker" "inspect" "21ed736f35d960a81bdfe7f314fb3cca67ca9492ea40e532e28f1d4f40b8b823"`
[INFO] running `"docker" "rm" "-f" "21ed736f35d960a81bdfe7f314fb3cca67ca9492ea40e532e28f1d4f40b8b823"`
[INFO] [stdout] 21ed736f35d960a81bdfe7f314fb3cca67ca9492ea40e532e28f1d4f40b8b823
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/mio-serial/3.2.14:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 79639ab42a05da909fdc8f9028d627ef3d9a930f1197d5441e4629fe2bf5fd5f
[INFO] running `"docker" "start" "-a" "79639ab42a05da909fdc8f9028d627ef3d9a930f1197d5441e4629fe2bf5fd5f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/mio_serial-e6746fa3677dc673
[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]      Running /opt/crater/target/debug/deps/test_unix-261f2af6f47a64de
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_from_path ... ignored
[INFO] [stdout] test test_from_serial ... ignored
[INFO] [stdout] test test_serial_pair ... ok
[INFO] [stderr]    Doc-tests mio-serial
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/unix.rs - unix::Serial::from_path (line 34) ... ignored
[INFO] [stdout] test src/unix.rs - unix::Serial::from_serial (line 53) ... ignored
[INFO] [stdout] test src/unix.rs - unix::Serial::pair (line 97) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "79639ab42a05da909fdc8f9028d627ef3d9a930f1197d5441e4629fe2bf5fd5f"`
[INFO] running `"docker" "rm" "-f" "79639ab42a05da909fdc8f9028d627ef3d9a930f1197d5441e4629fe2bf5fd5f"`
[INFO] [stdout] 79639ab42a05da909fdc8f9028d627ef3d9a930f1197d5441e4629fe2bf5fd5f