[INFO] updating cached repository neilparikh/http
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/neilparikh/http
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/neilparikh/http" "work/ex/beta-1.38-1/sources/1.37.0/gh/neilparikh/http"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/neilparikh/http'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/neilparikh/http" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/neilparikh/http"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/neilparikh/http'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 89453990fb6b8faad8cb83ce11658b762cf06c53
[INFO] sha for GitHub repo neilparikh/http: 89453990fb6b8faad8cb83ce11658b762cf06c53
[INFO] validating manifest of neilparikh/http 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 neilparikh/http 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 neilparikh/http
[INFO] finished frobbing neilparikh/http
[INFO] frobbed toml for neilparikh/http written to work/ex/beta-1.38-1/sources/1.37.0/gh/neilparikh/http/Cargo.toml
[INFO] started frobbing neilparikh/http
[INFO] finished frobbing neilparikh/http
[INFO] frobbed toml for neilparikh/http written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/neilparikh/http/Cargo.toml
[INFO] crate neilparikh/http 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 neilparikh/http 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/neilparikh/http:/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] 0208b2076088721b296082e639d592aa5bfd30e86ff9c11fcacd97adf4b74abe
[INFO] running `"docker" "start" "-a" "0208b2076088721b296082e639d592aa5bfd30e86ff9c11fcacd97adf4b74abe"`
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]    Compiling http v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:81:25
[INFO] [stderr]    |
[INFO] [stderr] 81 |                     let mut content_type;
[INFO] [stderr]    |                         ----^^^^^^^^^^^^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.13s
[INFO] running `"docker" "inspect" "0208b2076088721b296082e639d592aa5bfd30e86ff9c11fcacd97adf4b74abe"`
[INFO] running `"docker" "rm" "-f" "0208b2076088721b296082e639d592aa5bfd30e86ff9c11fcacd97adf4b74abe"`
[INFO] [stdout] 0208b2076088721b296082e639d592aa5bfd30e86ff9c11fcacd97adf4b74abe
[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/neilparikh/http:/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] 28600d706e6ade707d19f60e9e1f0d2e31789c120cf74726b194c65992eb461a
[INFO] running `"docker" "start" "-a" "28600d706e6ade707d19f60e9e1f0d2e31789c120cf74726b194c65992eb461a"`
[INFO] [stderr]    Compiling http v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:81:25
[INFO] [stderr]    |
[INFO] [stderr] 81 |                     let mut content_type;
[INFO] [stderr]    |                         ----^^^^^^^^^^^^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `"docker" "inspect" "28600d706e6ade707d19f60e9e1f0d2e31789c120cf74726b194c65992eb461a"`
[INFO] running `"docker" "rm" "-f" "28600d706e6ade707d19f60e9e1f0d2e31789c120cf74726b194c65992eb461a"`
[INFO] [stdout] 28600d706e6ade707d19f60e9e1f0d2e31789c120cf74726b194c65992eb461a
[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/neilparikh/http:/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] 8568d58a566b4d09d32d737bd4edfc89c02948eb4b61276044845516778738f5
[INFO] running `"docker" "start" "-a" "8568d58a566b4d09d32d737bd4edfc89c02948eb4b61276044845516778738f5"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/http-8f6f455590f4c7f9
[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" "8568d58a566b4d09d32d737bd4edfc89c02948eb4b61276044845516778738f5"`
[INFO] running `"docker" "rm" "-f" "8568d58a566b4d09d32d737bd4edfc89c02948eb4b61276044845516778738f5"`
[INFO] [stdout] 8568d58a566b4d09d32d737bd4edfc89c02948eb4b61276044845516778738f5