[INFO] updating cached repository siiptuo/rhubarb
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/siiptuo/rhubarb
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/siiptuo/rhubarb" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/siiptuo/rhubarb"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/siiptuo/rhubarb'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/siiptuo/rhubarb" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/siiptuo/rhubarb"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/siiptuo/rhubarb'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4732774b1fee02aa2d034214f86794dc76e9f6f2
[INFO] sha for GitHub repo siiptuo/rhubarb: 4732774b1fee02aa2d034214f86794dc76e9f6f2
[INFO] validating manifest of siiptuo/rhubarb on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of siiptuo/rhubarb on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing siiptuo/rhubarb
[INFO] finished frobbing siiptuo/rhubarb
[INFO] frobbed toml for siiptuo/rhubarb written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/siiptuo/rhubarb/Cargo.toml
[INFO] started frobbing siiptuo/rhubarb
[INFO] finished frobbing siiptuo/rhubarb
[INFO] frobbed toml for siiptuo/rhubarb written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/siiptuo/rhubarb/Cargo.toml
[INFO] crate siiptuo/rhubarb already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking siiptuo/rhubarb against master#e305df1846a6d985315917ae0c81b74af8b4e641 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-0/master#e305df1846a6d985315917ae0c81b74af8b4e641:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/siiptuo/rhubarb:/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=forbid" "-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" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0672d58c9bb83b7059b5a6c08ce5fd4388afe34b02cf2777f75a2ad9af4facc1
[INFO] running `"docker" "start" "-a" "0672d58c9bb83b7059b5a6c08ce5fd4388afe34b02cf2777f75a2ad9af4facc1"`
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking tokio-io v0.1.10
[INFO] [stderr]     Checking tokio-threadpool v0.1.9
[INFO] [stderr]     Checking hmac v0.7.0
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking tokio-reactor v0.1.7
[INFO] [stderr]     Checking tokio-fs v0.1.4
[INFO] [stderr]     Checking h2 v0.1.14
[INFO] [stderr]     Checking tokio-udp v0.1.3
[INFO] [stderr]     Checking tokio-uds v0.2.4
[INFO] [stderr]     Checking tokio-tcp v0.1.2
[INFO] [stderr]     Checking tokio v0.1.13
[INFO] [stderr]     Checking hyper v0.12.19
[INFO] [stderr]     Checking rhubarb v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `post_request`
[INFO] [stderr]    --> tests/common.rs:88:1
[INFO] [stderr]     |
[INFO] [stderr] 88  | / pub fn post_request<I, K, V>(pairs: I) -> Request<Body>
[INFO] [stderr] 89  | | where
[INFO] [stderr] 90  | |     I: IntoIterator,
[INFO] [stderr] 91  | |     I::Item: Borrow<(K, V)>,
[INFO] [stderr] ...   |
[INFO] [stderr] 103 | |         .unwrap()
[INFO] [stderr] 104 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.35s
[INFO] running `"docker" "inspect" "0672d58c9bb83b7059b5a6c08ce5fd4388afe34b02cf2777f75a2ad9af4facc1"`
[INFO] running `"docker" "rm" "-f" "0672d58c9bb83b7059b5a6c08ce5fd4388afe34b02cf2777f75a2ad9af4facc1"`
[INFO] [stdout] 0672d58c9bb83b7059b5a6c08ce5fd4388afe34b02cf2777f75a2ad9af4facc1