[INFO] updating cached repository asymptoticbuffer/chatito
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/asymptoticbuffer/chatito
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/asymptoticbuffer/chatito" "work/ex/beta-1.37-6/sources/1.36.0/gh/asymptoticbuffer/chatito"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/asymptoticbuffer/chatito'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/asymptoticbuffer/chatito" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/asymptoticbuffer/chatito"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/asymptoticbuffer/chatito'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] dc708e8fa2d3c88017f981233b5ba2f0367f1df1
[INFO] sha for GitHub repo asymptoticbuffer/chatito: dc708e8fa2d3c88017f981233b5ba2f0367f1df1
[INFO] validating manifest of asymptoticbuffer/chatito 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 asymptoticbuffer/chatito 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 asymptoticbuffer/chatito
[INFO] finished frobbing asymptoticbuffer/chatito
[INFO] frobbed toml for asymptoticbuffer/chatito written to work/ex/beta-1.37-6/sources/1.36.0/gh/asymptoticbuffer/chatito/Cargo.toml
[INFO] started frobbing asymptoticbuffer/chatito
[INFO] finished frobbing asymptoticbuffer/chatito
[INFO] frobbed toml for asymptoticbuffer/chatito written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/asymptoticbuffer/chatito/Cargo.toml
[INFO] crate asymptoticbuffer/chatito 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 asymptoticbuffer/chatito 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-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/asymptoticbuffer/chatito:/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] 25edbc2250b349f5d95cf296d25f9cad14f7600ee0a6101fce311eb02d84c98a
[INFO] running `"docker" "start" "-a" "25edbc2250b349f5d95cf296d25f9cad14f7600ee0a6101fce311eb02d84c98a"`
[INFO] [stderr]    Compiling chatito v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `BufMut`
[INFO] [stderr]  --> src/transport.rs:2:13
[INFO] [stderr]   |
[INFO] [stderr] 2 | use bytes::{BufMut, BytesMut};
[INFO] [stderr]   |             ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.96s
[INFO] running `"docker" "inspect" "25edbc2250b349f5d95cf296d25f9cad14f7600ee0a6101fce311eb02d84c98a"`
[INFO] running `"docker" "rm" "-f" "25edbc2250b349f5d95cf296d25f9cad14f7600ee0a6101fce311eb02d84c98a"`
[INFO] [stdout] 25edbc2250b349f5d95cf296d25f9cad14f7600ee0a6101fce311eb02d84c98a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/asymptoticbuffer/chatito:/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] 044b2d1b124e758671c4902ba47bf04298036621033a8c12ae4ee46df59f279e
[INFO] running `"docker" "start" "-a" "044b2d1b124e758671c4902ba47bf04298036621033a8c12ae4ee46df59f279e"`
[INFO] [stderr]    Compiling chatito v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `BufMut`
[INFO] [stderr]  --> src/transport.rs:2:13
[INFO] [stderr]   |
[INFO] [stderr] 2 | use bytes::{BufMut, BytesMut};
[INFO] [stderr]   |             ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.36s
[INFO] running `"docker" "inspect" "044b2d1b124e758671c4902ba47bf04298036621033a8c12ae4ee46df59f279e"`
[INFO] running `"docker" "rm" "-f" "044b2d1b124e758671c4902ba47bf04298036621033a8c12ae4ee46df59f279e"`
[INFO] [stdout] 044b2d1b124e758671c4902ba47bf04298036621033a8c12ae4ee46df59f279e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/asymptoticbuffer/chatito:/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] 0c5a816477796bf6048a5b4a5d6ad16d293389668a2ceaf64d9f641f6ecdcfb1
[INFO] running `"docker" "start" "-a" "0c5a816477796bf6048a5b4a5d6ad16d293389668a2ceaf64d9f641f6ecdcfb1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/chatito-5f14d00c2b974173
[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] [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/chatito-03670e0b4af8730d
[INFO] [stderr]    Doc-tests chatito
[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" "0c5a816477796bf6048a5b4a5d6ad16d293389668a2ceaf64d9f641f6ecdcfb1"`
[INFO] running `"docker" "rm" "-f" "0c5a816477796bf6048a5b4a5d6ad16d293389668a2ceaf64d9f641f6ecdcfb1"`
[INFO] [stdout] 0c5a816477796bf6048a5b4a5d6ad16d293389668a2ceaf64d9f641f6ecdcfb1