[INFO] updating cached repository cmbrandenburg/rss2email
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cmbrandenburg/rss2email
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cmbrandenburg/rss2email" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/cmbrandenburg/rss2email"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/cmbrandenburg/rss2email'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cmbrandenburg/rss2email" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/cmbrandenburg/rss2email"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/cmbrandenburg/rss2email'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b76acd0f8489f3580b39c0ebbce16be3dd46b832
[INFO] sha for GitHub repo cmbrandenburg/rss2email: b76acd0f8489f3580b39c0ebbce16be3dd46b832
[INFO] validating manifest of cmbrandenburg/rss2email on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cmbrandenburg/rss2email on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing cmbrandenburg/rss2email
[INFO] finished frobbing cmbrandenburg/rss2email
[INFO] frobbed toml for cmbrandenburg/rss2email written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/cmbrandenburg/rss2email/Cargo.toml
[INFO] started frobbing cmbrandenburg/rss2email
[INFO] finished frobbing cmbrandenburg/rss2email
[INFO] frobbed toml for cmbrandenburg/rss2email written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/cmbrandenburg/rss2email/Cargo.toml
[INFO] crate cmbrandenburg/rss2email already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking cmbrandenburg/rss2email against try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-7/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/cmbrandenburg/rss2email:/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" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 8ea0dbd8bdca04f1dc4ca0336fe72d2519383f78bb8ded721767203e92ac640b
[INFO] running `"docker" "start" "-a" "8ea0dbd8bdca04f1dc4ca0336fe72d2519383f78bb8ded721767203e92ac640b"`
[INFO] [stderr]    Compiling getopts v0.2.14
[INFO] [stderr]    Compiling derive_builder v0.5.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.11
[INFO] [stderr]     Checking encoding_rs v0.6.11
[INFO] [stderr]     Checking rmp v0.8.6
[INFO] [stderr]     Checking toml v0.4.5
[INFO] [stderr]    Compiling tempdir v0.3.5
[INFO] [stderr]    Compiling email v0.0.17
[INFO] [stderr]     Checking uuid v0.4.0
[INFO] [stderr] warning[E0503]: cannot use `state` because it was mutably borrowed
[INFO] [stderr]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/getopts-0.2.14/src/lib.rs:1008:33
[INFO] [stderr]      |
[INFO] [stderr] 955  |     let mut machine = |cont: &mut bool, (i, c): (usize, char)| {
[INFO] [stderr]      |                       ---------------------------------------- borrow of `state` occurs here
[INFO] [stderr] ...
[INFO] [stderr] 959  |         state = match (state, whitespace, limit) {
[INFO] [stderr]      |                        ----- borrow occurs due to use of `state` in closure
[INFO] [stderr] ...
[INFO] [stderr] 1008 |     while cont && match state { B | C => true, A => false } {
[INFO] [stderr]      |                                 ^ use of borrowed `state`
[INFO] [stderr] 1009 |         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] error[E0214]: parenthesized type parameters may only be used with a `Fn` trait
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/encoding_rs-0.6.11/src/utf_16.rs:33:49
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn additional_from_state(&self) -> usize() {
[INFO] [stderr]    |                                                 ^^ only `Fn` traits may use parentheses
[INFO] [stderr] 
[INFO] [stderr]     Checking textwrap v0.7.0
[INFO] [stderr]    Compiling derive_builder_core v0.1.7
[INFO] [stderr]     Checking rmp-serde v0.13.6
[INFO] [stderr]     Checking chrono v0.4.0
[INFO] [stderr]     Checking hyper v0.10.12
[INFO] [stderr]     Checking serde_urlencoded v0.5.1
[INFO] [stderr]    Compiling pulldown-cmark v0.0.3
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0214`.
[INFO] [stderr] error: Could not compile `encoding_rs`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "8ea0dbd8bdca04f1dc4ca0336fe72d2519383f78bb8ded721767203e92ac640b"`
[INFO] running `"docker" "rm" "-f" "8ea0dbd8bdca04f1dc4ca0336fe72d2519383f78bb8ded721767203e92ac640b"`
[INFO] [stdout] 8ea0dbd8bdca04f1dc4ca0336fe72d2519383f78bb8ded721767203e92ac640b