[INFO] updating cached repository lazau/rust-http-server
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/lazau/rust-http-server
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/lazau/rust-http-server" "work/ex/beta-1.38-1/sources/1.37.0/gh/lazau/rust-http-server"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/lazau/rust-http-server'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lazau/rust-http-server" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lazau/rust-http-server"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lazau/rust-http-server'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3907d530a923d4d380e249173f0c33215433a858
[INFO] sha for GitHub repo lazau/rust-http-server: 3907d530a923d4d380e249173f0c33215433a858
[INFO] validating manifest of lazau/rust-http-server 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 lazau/rust-http-server 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 lazau/rust-http-server
[INFO] finished frobbing lazau/rust-http-server
[INFO] frobbed toml for lazau/rust-http-server written to work/ex/beta-1.38-1/sources/1.37.0/gh/lazau/rust-http-server/Cargo.toml
[INFO] started frobbing lazau/rust-http-server
[INFO] finished frobbing lazau/rust-http-server
[INFO] frobbed toml for lazau/rust-http-server written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lazau/rust-http-server/Cargo.toml
[INFO] crate lazau/rust-http-server 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/lazau/rust-http-server/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[INFO] the lockfile is outdated, regenerating it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] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[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 lazau/rust-http-server 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/lazau/rust-http-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 25c00ad9a9936d1931a5652e8469f5c36ffc4366ca38205ddc623bf80bdbee6e
[INFO] running `"docker" "start" "-a" "25c00ad9a9936d1931a5652e8469f5c36ffc4366ca38205ddc623bf80bdbee6e"`
[INFO] [stderr]    Compiling mio v0.6.19
[INFO] [stderr]    Compiling env_logger v0.4.3
[INFO] [stderr]    Compiling http_server v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.61s
[INFO] running `"docker" "inspect" "25c00ad9a9936d1931a5652e8469f5c36ffc4366ca38205ddc623bf80bdbee6e"`
[INFO] running `"docker" "rm" "-f" "25c00ad9a9936d1931a5652e8469f5c36ffc4366ca38205ddc623bf80bdbee6e"`
[INFO] [stdout] 25c00ad9a9936d1931a5652e8469f5c36ffc4366ca38205ddc623bf80bdbee6e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/lazau/rust-http-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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 33168e0f15bb5c776681ac46470cc5331e7dabc5010afade006d793a694d26a9
[INFO] running `"docker" "start" "-a" "33168e0f15bb5c776681ac46470cc5331e7dabc5010afade006d793a694d26a9"`
[INFO] [stderr]    Compiling http_server v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `"docker" "inspect" "33168e0f15bb5c776681ac46470cc5331e7dabc5010afade006d793a694d26a9"`
[INFO] running `"docker" "rm" "-f" "33168e0f15bb5c776681ac46470cc5331e7dabc5010afade006d793a694d26a9"`
[INFO] [stdout] 33168e0f15bb5c776681ac46470cc5331e7dabc5010afade006d793a694d26a9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/lazau/rust-http-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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] bc596857d5e7c8bd86b6d8def8df9c909406097c1de5859fdf2c62e316dee800
[INFO] running `"docker" "start" "-a" "bc596857d5e7c8bd86b6d8def8df9c909406097c1de5859fdf2c62e316dee800"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/http_server-922761a5b425bff7
[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" "bc596857d5e7c8bd86b6d8def8df9c909406097c1de5859fdf2c62e316dee800"`
[INFO] running `"docker" "rm" "-f" "bc596857d5e7c8bd86b6d8def8df9c909406097c1de5859fdf2c62e316dee800"`
[INFO] [stdout] bc596857d5e7c8bd86b6d8def8df9c909406097c1de5859fdf2c62e316dee800