[INFO] updating cached repository mattgathu/duma
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mattgathu/duma
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mattgathu/duma" "work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/mattgathu/duma"`
[INFO] [stderr] Cloning into 'work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/mattgathu/duma'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mattgathu/duma" "work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/mattgathu/duma"`
[INFO] [stderr] Cloning into 'work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/mattgathu/duma'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f079f24e660ca667386c2b2af7ce5b6afdf49f14
[INFO] sha for GitHub repo mattgathu/duma: f079f24e660ca667386c2b2af7ce5b6afdf49f14
[INFO] validating manifest of mattgathu/duma on toolchain master#1891bfa80364eead426517c68de6947b7692e2de
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mattgathu/duma on toolchain try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mattgathu/duma
[INFO] finished frobbing mattgathu/duma
[INFO] frobbed toml for mattgathu/duma written to work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/mattgathu/duma/Cargo.toml
[INFO] started frobbing mattgathu/duma
[INFO] finished frobbing mattgathu/duma
[INFO] frobbed toml for mattgathu/duma written to work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/mattgathu/duma/Cargo.toml
[INFO] crate mattgathu/duma already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking mattgathu/duma against try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a for pr-60261
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60261/worker-2/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/mattgathu/duma:/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" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 17ad73107ae375806bf4b68533f60f391b16617cea54e5aa8124290c8021cad5
[INFO] running `"docker" "start" "-a" "17ad73107ae375806bf4b68533f60f391b16617cea54e5aa8124290c8021cad5"`
[INFO] [stderr]     Checking smallvec v0.4.2
[INFO] [stderr]    Compiling getopts v0.2.15
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking termios v0.2.2
[INFO] [stderr]     Checking clicolors-control v0.1.0
[INFO] [stderr]     Checking colored v1.5.2
[INFO] [stderr]    Compiling tempdir v0.3.5
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]     Checking backtrace-sys v0.1.14
[INFO] [stderr]     Checking aho-corasick v0.5.3
[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] 
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking parking_lot_core v0.2.3
[INFO] [stderr]     Checking backtrace v0.3.3
[INFO] [stderr]     Checking tokio-tls v0.1.3
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking hyper-tls v0.1.2
[INFO] [stderr]     Checking parking_lot v0.4.5
[INFO] [stderr]    Compiling pulldown-cmark v0.0.3
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking console v0.5.0
[INFO] [stderr]     Checking reqwest v0.7.3
[INFO] [stderr]     Checking indicatif v0.7.0
[INFO] [stderr]    Compiling skeptic v0.5.0
[INFO] [stderr]    Compiling assert_cli v0.4.0
[INFO] [stderr]     Checking ftp v2.2.1
[INFO] [stderr]     Checking duma v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.45s
[INFO] running `"docker" "inspect" "17ad73107ae375806bf4b68533f60f391b16617cea54e5aa8124290c8021cad5"`
[INFO] running `"docker" "rm" "-f" "17ad73107ae375806bf4b68533f60f391b16617cea54e5aa8124290c8021cad5"`
[INFO] [stdout] 17ad73107ae375806bf4b68533f60f391b16617cea54e5aa8124290c8021cad5