[INFO] updating cached repository ElPicador/testing-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ElPicador/testing-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ElPicador/testing-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/ElPicador/testing-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ElPicador/testing-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ElPicador/testing-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ElPicador/testing-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ElPicador/testing-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cde9f6634ffa789896730ad0c781414dee67fec0
[INFO] sha for GitHub repo ElPicador/testing-rust: cde9f6634ffa789896730ad0c781414dee67fec0
[INFO] validating manifest of ElPicador/testing-rust 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 ElPicador/testing-rust 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 ElPicador/testing-rust
[INFO] finished frobbing ElPicador/testing-rust
[INFO] frobbed toml for ElPicador/testing-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/ElPicador/testing-rust/Cargo.toml
[INFO] started frobbing ElPicador/testing-rust
[INFO] finished frobbing ElPicador/testing-rust
[INFO] frobbed toml for ElPicador/testing-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ElPicador/testing-rust/Cargo.toml
[INFO] crate ElPicador/testing-rust 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] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ElPicador/testing-rust/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 ElPicador/testing-rust 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ElPicador/testing-rust:/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] 6dc70d7fe0e764de574817003e0b501371f12918adf5bfaa28d9da085c89afd4
[INFO] running `"docker" "start" "-a" "6dc70d7fe0e764de574817003e0b501371f12918adf5bfaa28d9da085c89afd4"`
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling test-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::process::exit`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::process::exit;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep`
[INFO] [stderr]  --> src/main.rs:6:19
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::thread::{sleep_ms};
[INFO] [stderr]   |                   ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep`
[INFO] [stderr]   --> src/main.rs:40:3
[INFO] [stderr]    |
[INFO] [stderr] 40 |   sleep_ms(1000);
[INFO] [stderr]    |   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep`
[INFO] [stderr]   --> src/main.rs:69:3
[INFO] [stderr]    |
[INFO] [stderr] 69 |   sleep_ms(20000);
[INFO] [stderr]    |   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `reader`
[INFO] [stderr]   --> src/main.rs:44:9
[INFO] [stderr]    |
[INFO] [stderr] 44 |     let reader = thread::spawn(move || { reader(host_clone) });
[INFO] [stderr]    |         ^^^^^^ help: consider prefixing with an underscore: `_reader`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stream`
[INFO] [stderr]   --> src/main.rs:67:8
[INFO] [stderr]    |
[INFO] [stderr] 67 |     Ok(stream) => println!("Listening to {}", host)
[INFO] [stderr]    |        ^^^^^^ help: consider prefixing with an underscore: `_stream`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stream`
[INFO] [stderr]   --> src/main.rs:75:8
[INFO] [stderr]    |
[INFO] [stderr] 75 |     Ok(stream) => println!("Connected to {}", host)
[INFO] [stderr]    |        ^^^^^^ help: consider prefixing with an underscore: `_stream`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.07s
[INFO] running `"docker" "inspect" "6dc70d7fe0e764de574817003e0b501371f12918adf5bfaa28d9da085c89afd4"`
[INFO] running `"docker" "rm" "-f" "6dc70d7fe0e764de574817003e0b501371f12918adf5bfaa28d9da085c89afd4"`
[INFO] [stdout] 6dc70d7fe0e764de574817003e0b501371f12918adf5bfaa28d9da085c89afd4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ElPicador/testing-rust:/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] 4c61f2ce0c32827cca28d294f05e49698e4482133685910fac3de5dc22fb0e49
[INFO] running `"docker" "start" "-a" "4c61f2ce0c32827cca28d294f05e49698e4482133685910fac3de5dc22fb0e49"`
[INFO] [stderr]    Compiling test-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::process::exit`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::process::exit;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep`
[INFO] [stderr]  --> src/main.rs:6:19
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::thread::{sleep_ms};
[INFO] [stderr]   |                   ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep`
[INFO] [stderr]   --> src/main.rs:40:3
[INFO] [stderr]    |
[INFO] [stderr] 40 |   sleep_ms(1000);
[INFO] [stderr]    |   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep`
[INFO] [stderr]   --> src/main.rs:69:3
[INFO] [stderr]    |
[INFO] [stderr] 69 |   sleep_ms(20000);
[INFO] [stderr]    |   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `reader`
[INFO] [stderr]   --> src/main.rs:44:9
[INFO] [stderr]    |
[INFO] [stderr] 44 |     let reader = thread::spawn(move || { reader(host_clone) });
[INFO] [stderr]    |         ^^^^^^ help: consider prefixing with an underscore: `_reader`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stream`
[INFO] [stderr]   --> src/main.rs:67:8
[INFO] [stderr]    |
[INFO] [stderr] 67 |     Ok(stream) => println!("Listening to {}", host)
[INFO] [stderr]    |        ^^^^^^ help: consider prefixing with an underscore: `_stream`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stream`
[INFO] [stderr]   --> src/main.rs:75:8
[INFO] [stderr]    |
[INFO] [stderr] 75 |     Ok(stream) => println!("Connected to {}", host)
[INFO] [stderr]    |        ^^^^^^ help: consider prefixing with an underscore: `_stream`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `"docker" "inspect" "4c61f2ce0c32827cca28d294f05e49698e4482133685910fac3de5dc22fb0e49"`
[INFO] running `"docker" "rm" "-f" "4c61f2ce0c32827cca28d294f05e49698e4482133685910fac3de5dc22fb0e49"`
[INFO] [stdout] 4c61f2ce0c32827cca28d294f05e49698e4482133685910fac3de5dc22fb0e49
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ElPicador/testing-rust:/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] eef7680ce65bde2733b8b1a190d0891cef226e85d4317ecb53eb636b5ae51bd5
[INFO] running `"docker" "start" "-a" "eef7680ce65bde2733b8b1a190d0891cef226e85d4317ecb53eb636b5ae51bd5"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/test_rust-77379091d0030049
[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" "eef7680ce65bde2733b8b1a190d0891cef226e85d4317ecb53eb636b5ae51bd5"`
[INFO] running `"docker" "rm" "-f" "eef7680ce65bde2733b8b1a190d0891cef226e85d4317ecb53eb636b5ae51bd5"`
[INFO] [stdout] eef7680ce65bde2733b8b1a190d0891cef226e85d4317ecb53eb636b5ae51bd5