[INFO] cloning repository tomhrr/owhois
[INFO] running `"git" "clone" "--bare" "git://github.com/tomhrr/owhois.git" "work/cache/sources/gh/tomhrr/owhois"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/tomhrr/owhois'...
[INFO] running `"git" "clone" "work/cache/sources/gh/tomhrr/owhois" "work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/tomhrr/owhois"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/tomhrr/owhois'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tomhrr/owhois" "work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/tomhrr/owhois"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/tomhrr/owhois'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 77dd31754c34b13852013ea28c748154dc4c32b5
[INFO] sha for GitHub repo tomhrr/owhois: 77dd31754c34b13852013ea28c748154dc4c32b5
[INFO] validating manifest of tomhrr/owhois on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tomhrr/owhois on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tomhrr/owhois
[INFO] finished frobbing tomhrr/owhois
[INFO] frobbed toml for tomhrr/owhois written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/tomhrr/owhois/Cargo.toml
[INFO] started frobbing tomhrr/owhois
[INFO] finished frobbing tomhrr/owhois
[INFO] frobbed toml for tomhrr/owhois written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/tomhrr/owhois/Cargo.toml
[INFO] crate tomhrr/owhois already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded treebitmap v0.2.2
[INFO] [stderr]   Downloaded intervaltree v0.2.3
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] checking tomhrr/owhois against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-3/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/tomhrr/owhois:/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" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 36f31790d741463f3a2d2056ba8c11f88371bd006882baf6b04bdb56dcba6cf4
[INFO] running `"docker" "start" "-a" "36f31790d741463f3a2d2056ba8c11f88371bd006882baf6b04bdb56dcba6cf4"`
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking serde v1.0.25
[INFO] [stderr]     Checking smallvec v0.4.4
[INFO] [stderr]     Checking ipnet v1.0.0
[INFO] [stderr]     Checking treebitmap v0.2.2
[INFO] [stderr]     Checking getopts v0.2.15
[INFO] [stderr]     Checking iovec v0.1.1
[INFO] [stderr]     Checking net2 v0.2.31
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking num_cpus v1.7.0
[INFO] [stderr]     Checking time v0.1.38
[INFO] [stderr]     Checking inotify v0.3.0
[INFO] [stderr] warning[E0503]: cannot use `state` because it was mutably borrowed
[INFO] [stderr]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/getopts-0.2.15/src/lib.rs:1033:33
[INFO] [stderr]      |
[INFO] [stderr] 978  |     let mut machine = |cont: &mut bool, (i, c): (usize, char)| {
[INFO] [stderr]      |                       ---------------------------------------- borrow of `state` occurs here
[INFO] [stderr] ...
[INFO] [stderr] 982  |         state = match (state, whitespace, limit) {
[INFO] [stderr]      |                        ----- borrow occurs due to use of `state` in closure
[INFO] [stderr] ...
[INFO] [stderr] 1033 |     while cont && match state { B | C => true, A => false } {
[INFO] [stderr]      |                                 ^ use of borrowed `state`
[INFO] [stderr] 1034 |         machine(&mut cont, (fake_i, ' '));
[INFO] [stderr]      |         ------- borrow later used here
[INFO] [stderr]      |
[INFO] [stderr]      = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]      = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]      = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr]     Checking filetime v0.1.14
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking walkdir v2.0.1
[INFO] [stderr]     Checking csv-core v0.1.3
[INFO] [stderr]     Checking bytes v0.4.5
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking futures-cpupool v0.1.7
[INFO] [stderr]     Checking mio v0.6.11
[INFO] [stderr]     Checking intervaltree v0.2.3
[INFO] [stderr]     Checking miow v0.1.5
[INFO] [stderr]     Checking chrono v0.4.0
[INFO] [stderr]     Checking regex v0.2.3
[INFO] [stderr]     Checking tokio-io v0.1.4
[INFO] [stderr]     Checking tokio-core v0.1.11
[INFO] [stderr]     Checking env_logger v0.5.0-rc.1
[INFO] [stderr]     Checking tokio-dns-unofficial v0.1.1
[INFO] [stderr]     Checking mio v0.5.1
[INFO] [stderr] error[E0283]: type annotations required: cannot resolve `std::io::Error: std::convert::From<_>`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-dns-unofficial-0.1.1/src/net.rs:100:54
[INFO] [stderr]     |
[INFO] [stderr] 100 |     futures::stream::iter(addrs.into_iter().map(Ok)).fold(result, move |prev, addr| {
[INFO] [stderr]     |                                                      ^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0283`.
[INFO] [stderr] error: Could not compile `tokio-dns-unofficial`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "36f31790d741463f3a2d2056ba8c11f88371bd006882baf6b04bdb56dcba6cf4"`
[INFO] running `"docker" "rm" "-f" "36f31790d741463f3a2d2056ba8c11f88371bd006882baf6b04bdb56dcba6cf4"`
[INFO] [stdout] 36f31790d741463f3a2d2056ba8c11f88371bd006882baf6b04bdb56dcba6cf4