[INFO] updating cached repository tcsc/asyncho
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tcsc/asyncho
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tcsc/asyncho" "work/ex/beta-1.38-1/sources/1.37.0/gh/tcsc/asyncho"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/tcsc/asyncho'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tcsc/asyncho" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tcsc/asyncho"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tcsc/asyncho'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ea65583019f2c1aa8de01878435db2f59ae84a5f
[INFO] sha for GitHub repo tcsc/asyncho: ea65583019f2c1aa8de01878435db2f59ae84a5f
[INFO] validating manifest of tcsc/asyncho 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 tcsc/asyncho 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 tcsc/asyncho
[INFO] finished frobbing tcsc/asyncho
[INFO] frobbed toml for tcsc/asyncho written to work/ex/beta-1.38-1/sources/1.37.0/gh/tcsc/asyncho/Cargo.toml
[INFO] started frobbing tcsc/asyncho
[INFO] finished frobbing tcsc/asyncho
[INFO] frobbed toml for tcsc/asyncho written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tcsc/asyncho/Cargo.toml
[INFO] crate tcsc/asyncho already has a lockfile, it will not be regenerated
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing tcsc/asyncho 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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/tcsc/asyncho:/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] be78d8da37a839583cf07d57db6ed559db3b08ad4eb6baac2ee7fdd817baa3c9
[INFO] running `"docker" "start" "-a" "be78d8da37a839583cf07d57db6ed559db3b08ad4eb6baac2ee7fdd817baa3c9"`
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling iovec v0.1.0
[INFO] [stderr]    Compiling thread-id v3.0.0
[INFO] [stderr]    Compiling net2 v0.2.27
[INFO] [stderr]    Compiling thread_local v0.3.3
[INFO] [stderr]    Compiling bytes v0.4.2
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]    Compiling mio v0.6.6
[INFO] [stderr]    Compiling regex v0.2.1
[INFO] [stderr]    Compiling tokio-io v0.1.1
[INFO] [stderr]    Compiling tokio-core v0.1.6
[INFO] [stderr]    Compiling env_logger v0.4.2
[INFO] [stderr]    Compiling asyncho v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/service.rs:124:17
[INFO] [stderr]     |
[INFO] [stderr] 124 |                 self.spawn_connection(conn).map_err(erase);
[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 23.25s
[INFO] running `"docker" "inspect" "be78d8da37a839583cf07d57db6ed559db3b08ad4eb6baac2ee7fdd817baa3c9"`
[INFO] running `"docker" "rm" "-f" "be78d8da37a839583cf07d57db6ed559db3b08ad4eb6baac2ee7fdd817baa3c9"`
[INFO] [stdout] be78d8da37a839583cf07d57db6ed559db3b08ad4eb6baac2ee7fdd817baa3c9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/tcsc/asyncho:/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] b4241196905c58032dfe36d541def50e77b80b3894540d51d8cea9c47c8deb8b
[INFO] running `"docker" "start" "-a" "b4241196905c58032dfe36d541def50e77b80b3894540d51d8cea9c47c8deb8b"`
[INFO] [stderr]    Compiling asyncho v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/service.rs:124:17
[INFO] [stderr]     |
[INFO] [stderr] 124 |                 self.spawn_connection(conn).map_err(erase);
[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 2.19s
[INFO] running `"docker" "inspect" "b4241196905c58032dfe36d541def50e77b80b3894540d51d8cea9c47c8deb8b"`
[INFO] running `"docker" "rm" "-f" "b4241196905c58032dfe36d541def50e77b80b3894540d51d8cea9c47c8deb8b"`
[INFO] [stdout] b4241196905c58032dfe36d541def50e77b80b3894540d51d8cea9c47c8deb8b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/tcsc/asyncho:/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] f2fc0e7708abcc755fb25576dc0eb7fd48065ab0a261f50f6f0ab4fc23b9ac51
[INFO] running `"docker" "start" "-a" "f2fc0e7708abcc755fb25576dc0eb7fd48065ab0a261f50f6f0ab4fc23b9ac51"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/asyncho-acf064679993b3db
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test lines::test::decoder_returns_error_on_invalid_utf8 ... ok
[INFO] [stdout] test lines::test::encoder_handles_empty_frame ... ok
[INFO] [stdout] test lines::test::encoder_encodes_message ... ok
[INFO] [stdout] test lines::test::decoder_extracts_message ... ok
[INFO] [stdout] test lines::test::decoder_handles_zero_length_frame ... ok
[INFO] [stdout] test lines::test::decoder_handles_incomplete_frames ... ok
[INFO] [stdout] test lines::test::decoder_handles_empty_buffer ... ok
[INFO] [stdout] test lines::test::encoder_handles_multiple_frames ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "f2fc0e7708abcc755fb25576dc0eb7fd48065ab0a261f50f6f0ab4fc23b9ac51"`
[INFO] running `"docker" "rm" "-f" "f2fc0e7708abcc755fb25576dc0eb7fd48065ab0a261f50f6f0ab4fc23b9ac51"`
[INFO] [stdout] f2fc0e7708abcc755fb25576dc0eb7fd48065ab0a261f50f6f0ab4fc23b9ac51