[INFO] cloning repository voidxnull/mio-chat-example
[INFO] running `"git" "clone" "--bare" "git://github.com/voidxnull/mio-chat-example.git" "work/cache/sources/gh/voidxnull/mio-chat-example"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/voidxnull/mio-chat-example'...
[INFO] running `"git" "clone" "work/cache/sources/gh/voidxnull/mio-chat-example" "work/ex/beta-1.37-6/sources/1.36.0/gh/voidxnull/mio-chat-example"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/voidxnull/mio-chat-example'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/voidxnull/mio-chat-example" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/voidxnull/mio-chat-example"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/voidxnull/mio-chat-example'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 638e0a6875ae0cc861b07e7403374189456ef905
[INFO] sha for GitHub repo voidxnull/mio-chat-example: 638e0a6875ae0cc861b07e7403374189456ef905
[INFO] validating manifest of voidxnull/mio-chat-example 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 voidxnull/mio-chat-example 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 voidxnull/mio-chat-example
[INFO] finished frobbing voidxnull/mio-chat-example
[INFO] frobbed toml for voidxnull/mio-chat-example written to work/ex/beta-1.37-6/sources/1.36.0/gh/voidxnull/mio-chat-example/Cargo.toml
[INFO] started frobbing voidxnull/mio-chat-example
[INFO] finished frobbing voidxnull/mio-chat-example
[INFO] frobbed toml for voidxnull/mio-chat-example written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/voidxnull/mio-chat-example/Cargo.toml
[INFO] crate voidxnull/mio-chat-example 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 voidxnull/mio-chat-example 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-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/voidxnull/mio-chat-example:/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] 95d27aaa44321252aa4b0ac457fa2dd8e4cb195dd6000184cfa6de9363e25d42
[INFO] running `"docker" "start" "-a" "95d27aaa44321252aa4b0ac457fa2dd8e4cb195dd6000184cfa6de9363e25d42"`
[INFO] [stderr]    Compiling mio v0.6.19
[INFO] [stderr]    Compiling env_logger v0.6.1
[INFO] [stderr]    Compiling mio-extras v2.0.5
[INFO] [stderr]    Compiling mio-chat-example v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `Timer`, `self`
[INFO] [stderr]  --> src/tcp/server.rs:8:25
[INFO] [stderr]   |
[INFO] [stderr] 8 | use mio_extras::timer::{self, Timer};
[INFO] [stderr]   |                         ^^^^  ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg`
[INFO] [stderr]   --> src/main.rs:20:33
[INFO] [stderr]    |
[INFO] [stderr] 20 |     server.on_message_received(|msg, _, _, _| {
[INFO] [stderr]    |                                 ^^^ help: consider prefixing with an underscore: `_msg`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.16s
[INFO] running `"docker" "inspect" "95d27aaa44321252aa4b0ac457fa2dd8e4cb195dd6000184cfa6de9363e25d42"`
[INFO] running `"docker" "rm" "-f" "95d27aaa44321252aa4b0ac457fa2dd8e4cb195dd6000184cfa6de9363e25d42"`
[INFO] [stdout] 95d27aaa44321252aa4b0ac457fa2dd8e4cb195dd6000184cfa6de9363e25d42
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/voidxnull/mio-chat-example:/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] 99e09d135ba2067afac91ada72908444acfc9d598dd48fb8f29b6db08ac366c4
[INFO] running `"docker" "start" "-a" "99e09d135ba2067afac91ada72908444acfc9d598dd48fb8f29b6db08ac366c4"`
[INFO] [stderr]    Compiling mio-chat-example v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `Timer`, `self`
[INFO] [stderr]  --> src/tcp/server.rs:8:25
[INFO] [stderr]   |
[INFO] [stderr] 8 | use mio_extras::timer::{self, Timer};
[INFO] [stderr]   |                         ^^^^  ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg`
[INFO] [stderr]   --> src/main.rs:20:33
[INFO] [stderr]    |
[INFO] [stderr] 20 |     server.on_message_received(|msg, _, _, _| {
[INFO] [stderr]    |                                 ^^^ help: consider prefixing with an underscore: `_msg`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `"docker" "inspect" "99e09d135ba2067afac91ada72908444acfc9d598dd48fb8f29b6db08ac366c4"`
[INFO] running `"docker" "rm" "-f" "99e09d135ba2067afac91ada72908444acfc9d598dd48fb8f29b6db08ac366c4"`
[INFO] [stdout] 99e09d135ba2067afac91ada72908444acfc9d598dd48fb8f29b6db08ac366c4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/voidxnull/mio-chat-example:/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] 0154d85a712841a44e27325c80ebaea8b68c021ce88e0023f7aad3f5403f5ab0
[INFO] running `"docker" "start" "-a" "0154d85a712841a44e27325c80ebaea8b68c021ce88e0023f7aad3f5403f5ab0"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/mio_chat_example-d91b3e86fa379163
[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" "0154d85a712841a44e27325c80ebaea8b68c021ce88e0023f7aad3f5403f5ab0"`
[INFO] running `"docker" "rm" "-f" "0154d85a712841a44e27325c80ebaea8b68c021ce88e0023f7aad3f5403f5ab0"`
[INFO] [stdout] 0154d85a712841a44e27325c80ebaea8b68c021ce88e0023f7aad3f5403f5ab0