[INFO] updating cached repository sapphie132/dumbest_server_ever
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/sapphie132/dumbest_server_ever
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/sapphie132/dumbest_server_ever" "work/ex/beta-1.38-1/sources/1.37.0/gh/sapphie132/dumbest_server_ever"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/sapphie132/dumbest_server_ever'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sapphie132/dumbest_server_ever" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sapphie132/dumbest_server_ever"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sapphie132/dumbest_server_ever'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2809d90c1d1e12794c08440c8cf6cdbdf34a34ab
[INFO] sha for GitHub repo sapphie132/dumbest_server_ever: 2809d90c1d1e12794c08440c8cf6cdbdf34a34ab
[INFO] validating manifest of sapphie132/dumbest_server_ever 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 sapphie132/dumbest_server_ever 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 sapphie132/dumbest_server_ever
[INFO] finished frobbing sapphie132/dumbest_server_ever
[INFO] frobbed toml for sapphie132/dumbest_server_ever written to work/ex/beta-1.38-1/sources/1.37.0/gh/sapphie132/dumbest_server_ever/Cargo.toml
[INFO] started frobbing sapphie132/dumbest_server_ever
[INFO] finished frobbing sapphie132/dumbest_server_ever
[INFO] frobbed toml for sapphie132/dumbest_server_ever written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sapphie132/dumbest_server_ever/Cargo.toml
[INFO] crate sapphie132/dumbest_server_ever 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 sapphie132/dumbest_server_ever against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sapphie132/dumbest_server_ever:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] f373b5203e1ae76170166ab43367d7dc15b41b7b3f12e1aa0da102b449e5dff7
[INFO] running `"docker" "start" "-a" "f373b5203e1ae76170166ab43367d7dc15b41b7b3f12e1aa0da102b449e5dff7"`
[INFO] [stderr]    Compiling rust_server v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:10:48
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn launch(port: u32) -> Result<(), Box<std::error::Error>>
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:58:63
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn handle_stream(mut stream: TcpStream) -> Result<(), Box<std::error::Error>>
[INFO] [stderr]    |                                                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.25s
[INFO] running `"docker" "inspect" "f373b5203e1ae76170166ab43367d7dc15b41b7b3f12e1aa0da102b449e5dff7"`
[INFO] running `"docker" "rm" "-f" "f373b5203e1ae76170166ab43367d7dc15b41b7b3f12e1aa0da102b449e5dff7"`
[INFO] [stdout] f373b5203e1ae76170166ab43367d7dc15b41b7b3f12e1aa0da102b449e5dff7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sapphie132/dumbest_server_ever:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 369e918a10cf156b99b4706b82e2b48eae909740b1bb2e7a683a438e59619e16
[INFO] running `"docker" "start" "-a" "369e918a10cf156b99b4706b82e2b48eae909740b1bb2e7a683a438e59619e16"`
[INFO] [stderr]    Compiling rust_server v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:10:48
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn launch(port: u32) -> Result<(), Box<std::error::Error>>
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:58:63
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn handle_stream(mut stream: TcpStream) -> Result<(), Box<std::error::Error>>
[INFO] [stderr]    |                                                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `"docker" "inspect" "369e918a10cf156b99b4706b82e2b48eae909740b1bb2e7a683a438e59619e16"`
[INFO] running `"docker" "rm" "-f" "369e918a10cf156b99b4706b82e2b48eae909740b1bb2e7a683a438e59619e16"`
[INFO] [stdout] 369e918a10cf156b99b4706b82e2b48eae909740b1bb2e7a683a438e59619e16
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sapphie132/dumbest_server_ever:/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] b08063d56c51209c2b91caf8f63a442c6756246491342035d81e611c76380184
[INFO] running `"docker" "start" "-a" "b08063d56c51209c2b91caf8f63a442c6756246491342035d81e611c76380184"`
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_server-307565ecde936440
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_server-427719d2e8818797
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr]    Doc-tests rust_server
[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] [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" "b08063d56c51209c2b91caf8f63a442c6756246491342035d81e611c76380184"`
[INFO] running `"docker" "rm" "-f" "b08063d56c51209c2b91caf8f63a442c6756246491342035d81e611c76380184"`
[INFO] [stdout] b08063d56c51209c2b91caf8f63a442c6756246491342035d81e611c76380184