[INFO] updating cached repository silvadanilo/rust-testing-sending-error
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/silvadanilo/rust-testing-sending-error
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/silvadanilo/rust-testing-sending-error" "work/ex/beta-1.38-1/sources/1.37.0/gh/silvadanilo/rust-testing-sending-error"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/silvadanilo/rust-testing-sending-error'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/silvadanilo/rust-testing-sending-error" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/silvadanilo/rust-testing-sending-error"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/silvadanilo/rust-testing-sending-error'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 16f394fd5a7710b9e096cd5959b3cf76500f2b25
[INFO] sha for GitHub repo silvadanilo/rust-testing-sending-error: 16f394fd5a7710b9e096cd5959b3cf76500f2b25
[INFO] validating manifest of silvadanilo/rust-testing-sending-error 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 silvadanilo/rust-testing-sending-error 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 silvadanilo/rust-testing-sending-error
[INFO] finished frobbing silvadanilo/rust-testing-sending-error
[INFO] frobbed toml for silvadanilo/rust-testing-sending-error written to work/ex/beta-1.38-1/sources/1.37.0/gh/silvadanilo/rust-testing-sending-error/Cargo.toml
[INFO] started frobbing silvadanilo/rust-testing-sending-error
[INFO] finished frobbing silvadanilo/rust-testing-sending-error
[INFO] frobbed toml for silvadanilo/rust-testing-sending-error written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/silvadanilo/rust-testing-sending-error/Cargo.toml
[INFO] crate silvadanilo/rust-testing-sending-error 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] testing silvadanilo/rust-testing-sending-error 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/silvadanilo/rust-testing-sending-error:/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] 5e9092ba754ae85fdc08c485189ad26d36de3c7dcea982e6624cfdb2c63738e9
[INFO] running `"docker" "start" "-a" "5e9092ba754ae85fdc08c485189ad26d36de3c7dcea982e6624cfdb2c63738e9"`
[INFO] [stderr]    Compiling bytes v0.4.1
[INFO] [stderr]    Compiling tokio-service v0.1.0
[INFO] [stderr]    Compiling tokio-timer v0.1.0
[INFO] [stderr]    Compiling mio v0.6.5
[INFO] [stderr]    Compiling tokio-io v0.1.0
[INFO] [stderr]    Compiling tokio-core v0.1.6
[INFO] [stderr]    Compiling tokio-proto v0.1.1
[INFO] [stderr]    Compiling tokio-line v0.1.0 (https://github.com/tokio-rs/tokio-line#e2cf5758)
[INFO] [stderr]    Compiling test-connection v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `str`
[INFO] [stderr]   --> src/main.rs:15:15
[INFO] [stderr]    |
[INFO] [stderr] 15 | use std::{io, str};
[INFO] [stderr]    |               ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'tokio_core::io::Io': moved to the `tokio-io` crate
[INFO] [stderr]   --> src/main.rs:11:22
[INFO] [stderr]    |
[INFO] [stderr] 11 | use tokio_core::io::{Io};
[INFO] [stderr]    |                      ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'tokio_core::io::write_all': moved to the `tokio-io` crate
[INFO] [stderr]   --> src/main.rs:35:17
[INFO] [stderr]    |
[INFO] [stderr] 35 |                 tokio_core::io::write_all(sender, msg.into_bytes())
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'tokio_core::io::Io::split': moved to the `tokio-io` crate
[INFO] [stderr]   --> src/main.rs:28:41
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let (receiver, sender) = stream.split();
[INFO] [stderr]    |                                         ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `receiver`
[INFO] [stderr]   --> src/main.rs:28:14
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let (receiver, sender) = stream.split();
[INFO] [stderr]    |              ^^^^^^^^ help: consider prefixing with an underscore: `_receiver`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.04s
[INFO] running `"docker" "inspect" "5e9092ba754ae85fdc08c485189ad26d36de3c7dcea982e6624cfdb2c63738e9"`
[INFO] running `"docker" "rm" "-f" "5e9092ba754ae85fdc08c485189ad26d36de3c7dcea982e6624cfdb2c63738e9"`
[INFO] [stdout] 5e9092ba754ae85fdc08c485189ad26d36de3c7dcea982e6624cfdb2c63738e9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/silvadanilo/rust-testing-sending-error:/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] 071b9d7251f1cb4944394b7363adb5c8d37f86f36beb9b439b37eb87769e17f5
[INFO] running `"docker" "start" "-a" "071b9d7251f1cb4944394b7363adb5c8d37f86f36beb9b439b37eb87769e17f5"`
[INFO] [stderr]    Compiling test-connection v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `str`
[INFO] [stderr]   --> src/main.rs:15:15
[INFO] [stderr]    |
[INFO] [stderr] 15 | use std::{io, str};
[INFO] [stderr]    |               ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'tokio_core::io::Io': moved to the `tokio-io` crate
[INFO] [stderr]   --> src/main.rs:11:22
[INFO] [stderr]    |
[INFO] [stderr] 11 | use tokio_core::io::{Io};
[INFO] [stderr]    |                      ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'tokio_core::io::write_all': moved to the `tokio-io` crate
[INFO] [stderr]   --> src/main.rs:35:17
[INFO] [stderr]    |
[INFO] [stderr] 35 |                 tokio_core::io::write_all(sender, msg.into_bytes())
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'tokio_core::io::Io::split': moved to the `tokio-io` crate
[INFO] [stderr]   --> src/main.rs:28:41
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let (receiver, sender) = stream.split();
[INFO] [stderr]    |                                         ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `receiver`
[INFO] [stderr]   --> src/main.rs:28:14
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let (receiver, sender) = stream.split();
[INFO] [stderr]    |              ^^^^^^^^ help: consider prefixing with an underscore: `_receiver`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.24s
[INFO] running `"docker" "inspect" "071b9d7251f1cb4944394b7363adb5c8d37f86f36beb9b439b37eb87769e17f5"`
[INFO] running `"docker" "rm" "-f" "071b9d7251f1cb4944394b7363adb5c8d37f86f36beb9b439b37eb87769e17f5"`
[INFO] [stdout] 071b9d7251f1cb4944394b7363adb5c8d37f86f36beb9b439b37eb87769e17f5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/silvadanilo/rust-testing-sending-error:/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] eea2952a77c8996f7dc62d0aaca3d0311151277987e1fc76e34a054dbfba2fb4
[INFO] running `"docker" "start" "-a" "eea2952a77c8996f7dc62d0aaca3d0311151277987e1fc76e34a054dbfba2fb4"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/test_connection-4c4e5fb63f12b9cd
[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" "eea2952a77c8996f7dc62d0aaca3d0311151277987e1fc76e34a054dbfba2fb4"`
[INFO] running `"docker" "rm" "-f" "eea2952a77c8996f7dc62d0aaca3d0311151277987e1fc76e34a054dbfba2fb4"`
[INFO] [stdout] eea2952a77c8996f7dc62d0aaca3d0311151277987e1fc76e34a054dbfba2fb4