[INFO] updating cached repository bradford-hamilton/rust-nickel-server-helloWorld
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/bradford-hamilton/rust-nickel-server-helloWorld
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/bradford-hamilton/rust-nickel-server-helloWorld" "work/ex/beta-1.38-1/sources/1.37.0/gh/bradford-hamilton/rust-nickel-server-helloWorld"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/bradford-hamilton/rust-nickel-server-helloWorld'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/bradford-hamilton/rust-nickel-server-helloWorld" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/bradford-hamilton/rust-nickel-server-helloWorld"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/bradford-hamilton/rust-nickel-server-helloWorld'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a2106948c115371dfbabbf19d80dc39ec2bd6e3a
[INFO] sha for GitHub repo bradford-hamilton/rust-nickel-server-helloWorld: a2106948c115371dfbabbf19d80dc39ec2bd6e3a
[INFO] validating manifest of bradford-hamilton/rust-nickel-server-helloWorld 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 bradford-hamilton/rust-nickel-server-helloWorld 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 bradford-hamilton/rust-nickel-server-helloWorld
[INFO] finished frobbing bradford-hamilton/rust-nickel-server-helloWorld
[INFO] frobbed toml for bradford-hamilton/rust-nickel-server-helloWorld written to work/ex/beta-1.38-1/sources/1.37.0/gh/bradford-hamilton/rust-nickel-server-helloWorld/Cargo.toml
[INFO] started frobbing bradford-hamilton/rust-nickel-server-helloWorld
[INFO] finished frobbing bradford-hamilton/rust-nickel-server-helloWorld
[INFO] frobbed toml for bradford-hamilton/rust-nickel-server-helloWorld written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/bradford-hamilton/rust-nickel-server-helloWorld/Cargo.toml
[INFO] crate bradford-hamilton/rust-nickel-server-helloWorld 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/bradford-hamilton/rust-nickel-server-helloWorld/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 bradford-hamilton/rust-nickel-server-helloWorld 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/bradford-hamilton/rust-nickel-server-helloWorld:/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] d522f5f289ad6deae30c4a3cee6ba83fa05eea5fa7bbbbe5d9847a730e3496f9
[INFO] running `"docker" "start" "-a" "d522f5f289ad6deae30c4a3cee6ba83fa05eea5fa7bbbbe5d9847a730e3496f9"`
[INFO] [stderr]    Compiling mustache v0.9.0
[INFO] [stderr]    Compiling nickel v0.11.0
[INFO] [stderr]    Compiling nickel-demo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     server.listen("127.0.0.1:1337");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.18s
[INFO] running `"docker" "inspect" "d522f5f289ad6deae30c4a3cee6ba83fa05eea5fa7bbbbe5d9847a730e3496f9"`
[INFO] running `"docker" "rm" "-f" "d522f5f289ad6deae30c4a3cee6ba83fa05eea5fa7bbbbe5d9847a730e3496f9"`
[INFO] [stdout] d522f5f289ad6deae30c4a3cee6ba83fa05eea5fa7bbbbe5d9847a730e3496f9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/bradford-hamilton/rust-nickel-server-helloWorld:/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] b070e70caff96efbc6ffaa132052cc49184c2c61b28b0394c7e5f779318f023f
[INFO] running `"docker" "start" "-a" "b070e70caff96efbc6ffaa132052cc49184c2c61b28b0394c7e5f779318f023f"`
[INFO] [stderr]    Compiling nickel-demo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     server.listen("127.0.0.1:1337");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `"docker" "inspect" "b070e70caff96efbc6ffaa132052cc49184c2c61b28b0394c7e5f779318f023f"`
[INFO] running `"docker" "rm" "-f" "b070e70caff96efbc6ffaa132052cc49184c2c61b28b0394c7e5f779318f023f"`
[INFO] [stdout] b070e70caff96efbc6ffaa132052cc49184c2c61b28b0394c7e5f779318f023f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/bradford-hamilton/rust-nickel-server-helloWorld:/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] c4572bcdf8ecb1c718e55aa22db77b6b5b0cb476ebf88d0dc58bfb861ae54ce6
[INFO] running `"docker" "start" "-a" "c4572bcdf8ecb1c718e55aa22db77b6b5b0cb476ebf88d0dc58bfb861ae54ce6"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/nickel_demo-150d27a81ae1b8bf
[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" "c4572bcdf8ecb1c718e55aa22db77b6b5b0cb476ebf88d0dc58bfb861ae54ce6"`
[INFO] running `"docker" "rm" "-f" "c4572bcdf8ecb1c718e55aa22db77b6b5b0cb476ebf88d0dc58bfb861ae54ce6"`
[INFO] [stdout] c4572bcdf8ecb1c718e55aa22db77b6b5b0cb476ebf88d0dc58bfb861ae54ce6