[INFO] updating cached repository taku-n/send-msg
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/taku-n/send-msg
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/taku-n/send-msg" "work/ex/beta-1.37-6/sources/1.36.0/gh/taku-n/send-msg"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/taku-n/send-msg'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/taku-n/send-msg" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/taku-n/send-msg"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/taku-n/send-msg'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e1dc0620f2e329a7199d1a683f8287bfb242ab02
[INFO] sha for GitHub repo taku-n/send-msg: e1dc0620f2e329a7199d1a683f8287bfb242ab02
[INFO] validating manifest of taku-n/send-msg 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 taku-n/send-msg 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 taku-n/send-msg
[INFO] finished frobbing taku-n/send-msg
[INFO] frobbed toml for taku-n/send-msg written to work/ex/beta-1.37-6/sources/1.36.0/gh/taku-n/send-msg/Cargo.toml
[INFO] started frobbing taku-n/send-msg
[INFO] finished frobbing taku-n/send-msg
[INFO] frobbed toml for taku-n/send-msg written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/taku-n/send-msg/Cargo.toml
[INFO] crate taku-n/send-msg already has a lockfile, it will not be regenerated
[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 taku-n/send-msg 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-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/taku-n/send-msg:/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] 7d3092bbcf528b8f41dcfc722b68ebe3375110079ffaa21862c1ebb646d3d0f8
[INFO] running `"docker" "start" "-a" "7d3092bbcf528b8f41dcfc722b68ebe3375110079ffaa21862c1ebb646d3d0f8"`
[INFO] [stderr]    Compiling send-msg v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     stream.write(msg.as_bytes());
[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 0.47s
[INFO] running `"docker" "inspect" "7d3092bbcf528b8f41dcfc722b68ebe3375110079ffaa21862c1ebb646d3d0f8"`
[INFO] running `"docker" "rm" "-f" "7d3092bbcf528b8f41dcfc722b68ebe3375110079ffaa21862c1ebb646d3d0f8"`
[INFO] [stdout] 7d3092bbcf528b8f41dcfc722b68ebe3375110079ffaa21862c1ebb646d3d0f8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/taku-n/send-msg:/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] 7e4c4969be23f1c07d1d523161d10329c68ba38ef7b188217b3e307629c8a128
[INFO] running `"docker" "start" "-a" "7e4c4969be23f1c07d1d523161d10329c68ba38ef7b188217b3e307629c8a128"`
[INFO] [stderr]    Compiling send-msg v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     stream.write(msg.as_bytes());
[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 0.43s
[INFO] running `"docker" "inspect" "7e4c4969be23f1c07d1d523161d10329c68ba38ef7b188217b3e307629c8a128"`
[INFO] running `"docker" "rm" "-f" "7e4c4969be23f1c07d1d523161d10329c68ba38ef7b188217b3e307629c8a128"`
[INFO] [stdout] 7e4c4969be23f1c07d1d523161d10329c68ba38ef7b188217b3e307629c8a128
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/taku-n/send-msg:/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] 96d6877089e2f1a8e9908163194fb97b9466b25d0e43aa7a7cb37a8d6ecd3511
[INFO] running `"docker" "start" "-a" "96d6877089e2f1a8e9908163194fb97b9466b25d0e43aa7a7cb37a8d6ecd3511"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/send_msg-21ee798bf6bfb103
[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" "96d6877089e2f1a8e9908163194fb97b9466b25d0e43aa7a7cb37a8d6ecd3511"`
[INFO] running `"docker" "rm" "-f" "96d6877089e2f1a8e9908163194fb97b9466b25d0e43aa7a7cb37a8d6ecd3511"`
[INFO] [stdout] 96d6877089e2f1a8e9908163194fb97b9466b25d0e43aa7a7cb37a8d6ecd3511