[INFO] updating cached repository mboratko/rust_std_echo
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mboratko/rust_std_echo
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mboratko/rust_std_echo" "work/ex/beta-1.37-6/sources/1.36.0/gh/mboratko/rust_std_echo"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/mboratko/rust_std_echo'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mboratko/rust_std_echo" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mboratko/rust_std_echo"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mboratko/rust_std_echo'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bca861d08c7c9111e2c296ce47c7f8a46f279e27
[INFO] sha for GitHub repo mboratko/rust_std_echo: bca861d08c7c9111e2c296ce47c7f8a46f279e27
[INFO] validating manifest of mboratko/rust_std_echo 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 mboratko/rust_std_echo 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 mboratko/rust_std_echo
[INFO] finished frobbing mboratko/rust_std_echo
[INFO] frobbed toml for mboratko/rust_std_echo written to work/ex/beta-1.37-6/sources/1.36.0/gh/mboratko/rust_std_echo/Cargo.toml
[INFO] started frobbing mboratko/rust_std_echo
[INFO] finished frobbing mboratko/rust_std_echo
[INFO] frobbed toml for mboratko/rust_std_echo written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mboratko/rust_std_echo/Cargo.toml
[INFO] crate mboratko/rust_std_echo 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 mboratko/rust_std_echo 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/mboratko/rust_std_echo:/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] 70e527e76c56006d74973082b16be69541ab8685354345accc6042a00846cc5a
[INFO] running `"docker" "start" "-a" "70e527e76c56006d74973082b16be69541ab8685354345accc6042a00846cc5a"`
[INFO] [stderr]    Compiling rust_std_echo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right': superseded by `trim_end`
[INFO] [stderr]   --> src/bin/client.rs:27:48
[INFO] [stderr]    |
[INFO] [stderr] 27 |         println!("Server >>> {}", received_str.trim_right());
[INFO] [stderr]    |                                                ^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right': superseded by `trim_end`
[INFO] [stderr]   --> src/bin/server.rs:23:41
[INFO] [stderr]    |
[INFO] [stderr] 23 |         let received_str = received_str.trim_right();
[INFO] [stderr]    |                                         ^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.40s
[INFO] running `"docker" "inspect" "70e527e76c56006d74973082b16be69541ab8685354345accc6042a00846cc5a"`
[INFO] running `"docker" "rm" "-f" "70e527e76c56006d74973082b16be69541ab8685354345accc6042a00846cc5a"`
[INFO] [stdout] 70e527e76c56006d74973082b16be69541ab8685354345accc6042a00846cc5a
[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/mboratko/rust_std_echo:/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] bd37fc8c079a10b1e873397f7862cceb9bb54f8ea8a7ed00e8405fb32f401b06
[INFO] running `"docker" "start" "-a" "bd37fc8c079a10b1e873397f7862cceb9bb54f8ea8a7ed00e8405fb32f401b06"`
[INFO] [stderr]    Compiling rust_std_echo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right': superseded by `trim_end`
[INFO] [stderr]   --> src/bin/client.rs:27:48
[INFO] [stderr]    |
[INFO] [stderr] 27 |         println!("Server >>> {}", received_str.trim_right());
[INFO] [stderr]    |                                                ^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right': superseded by `trim_end`
[INFO] [stderr]   --> src/bin/server.rs:23:41
[INFO] [stderr]    |
[INFO] [stderr] 23 |         let received_str = received_str.trim_right();
[INFO] [stderr]    |                                         ^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `"docker" "inspect" "bd37fc8c079a10b1e873397f7862cceb9bb54f8ea8a7ed00e8405fb32f401b06"`
[INFO] running `"docker" "rm" "-f" "bd37fc8c079a10b1e873397f7862cceb9bb54f8ea8a7ed00e8405fb32f401b06"`
[INFO] [stdout] bd37fc8c079a10b1e873397f7862cceb9bb54f8ea8a7ed00e8405fb32f401b06
[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/mboratko/rust_std_echo:/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] 31ccc7870fcf1c5e8dc63b449763aae125f27009fa0b6c592cf23bd9dd03700e
[INFO] running `"docker" "start" "-a" "31ccc7870fcf1c5e8dc63b449763aae125f27009fa0b6c592cf23bd9dd03700e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/client-4116950e16a5b8f0
[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/server-9dc42e2ebfb1a6d3
[INFO] running `"docker" "inspect" "31ccc7870fcf1c5e8dc63b449763aae125f27009fa0b6c592cf23bd9dd03700e"`
[INFO] running `"docker" "rm" "-f" "31ccc7870fcf1c5e8dc63b449763aae125f27009fa0b6c592cf23bd9dd03700e"`
[INFO] [stdout] 31ccc7870fcf1c5e8dc63b449763aae125f27009fa0b6c592cf23bd9dd03700e