[INFO] updating cached repository GustavoKatel/rust-echo-server
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/GustavoKatel/rust-echo-server
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/GustavoKatel/rust-echo-server" "work/ex/beta-1.37-6/sources/1.36.0/gh/GustavoKatel/rust-echo-server"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/GustavoKatel/rust-echo-server'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/GustavoKatel/rust-echo-server" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/GustavoKatel/rust-echo-server"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/GustavoKatel/rust-echo-server'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6391a5c07d99f309265032e234457f5f1942d086
[INFO] sha for GitHub repo GustavoKatel/rust-echo-server: 6391a5c07d99f309265032e234457f5f1942d086
[INFO] validating manifest of GustavoKatel/rust-echo-server 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 GustavoKatel/rust-echo-server 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 GustavoKatel/rust-echo-server
[INFO] finished frobbing GustavoKatel/rust-echo-server
[INFO] frobbed toml for GustavoKatel/rust-echo-server written to work/ex/beta-1.37-6/sources/1.36.0/gh/GustavoKatel/rust-echo-server/Cargo.toml
[INFO] started frobbing GustavoKatel/rust-echo-server
[INFO] finished frobbing GustavoKatel/rust-echo-server
[INFO] frobbed toml for GustavoKatel/rust-echo-server written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/GustavoKatel/rust-echo-server/Cargo.toml
[INFO] crate GustavoKatel/rust-echo-server 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 GustavoKatel/rust-echo-server against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/GustavoKatel/rust-echo-server:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 2902019559c01aed9e3ab8124df0f905e93bc8f146a4d308c29828cb7f3545d2
[INFO] running `"docker" "start" "-a" "2902019559c01aed9e3ab8124df0f905e93bc8f146a4d308c29828cb7f3545d2"`
[INFO] [stderr]    Compiling libc v0.2.16
[INFO] [stderr]    Compiling bitflags v0.4.0
[INFO] [stderr]    Compiling nix v0.6.0
[INFO] [stderr]    Compiling net2 v0.2.26
[INFO] [stderr]    Compiling mio v0.6.0
[INFO] [stderr]    Compiling rust-echo-server v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.00s
[INFO] running `"docker" "inspect" "2902019559c01aed9e3ab8124df0f905e93bc8f146a4d308c29828cb7f3545d2"`
[INFO] running `"docker" "rm" "-f" "2902019559c01aed9e3ab8124df0f905e93bc8f146a4d308c29828cb7f3545d2"`
[INFO] [stdout] 2902019559c01aed9e3ab8124df0f905e93bc8f146a4d308c29828cb7f3545d2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/GustavoKatel/rust-echo-server:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4335de73f70693650270688ccdc0bef97565c7e48dfba828a4d9b5c5fd1cd3a1
[INFO] running `"docker" "start" "-a" "4335de73f70693650270688ccdc0bef97565c7e48dfba828a4d9b5c5fd1cd3a1"`
[INFO] [stderr]    Compiling rust-echo-server v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `"docker" "inspect" "4335de73f70693650270688ccdc0bef97565c7e48dfba828a4d9b5c5fd1cd3a1"`
[INFO] running `"docker" "rm" "-f" "4335de73f70693650270688ccdc0bef97565c7e48dfba828a4d9b5c5fd1cd3a1"`
[INFO] [stdout] 4335de73f70693650270688ccdc0bef97565c7e48dfba828a4d9b5c5fd1cd3a1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/GustavoKatel/rust-echo-server:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] a9bc2eb3c3fdbbe6d1544a2cb6026baad7bbd42c085f84074e5141f21a7ba8f7
[INFO] running `"docker" "start" "-a" "a9bc2eb3c3fdbbe6d1544a2cb6026baad7bbd42c085f84074e5141f21a7ba8f7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_echo_server-b30fa1645f2f1361
[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" "a9bc2eb3c3fdbbe6d1544a2cb6026baad7bbd42c085f84074e5141f21a7ba8f7"`
[INFO] running `"docker" "rm" "-f" "a9bc2eb3c3fdbbe6d1544a2cb6026baad7bbd42c085f84074e5141f21a7ba8f7"`
[INFO] [stdout] a9bc2eb3c3fdbbe6d1544a2cb6026baad7bbd42c085f84074e5141f21a7ba8f7