[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-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/cmbrandenburg/rss2email"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/cmbrandenburg/rss2email'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cmbrandenburg/rss2email" "work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/cmbrandenburg/rss2email"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/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#8869ee03d7f258e1b76a11c6fbb01b5708a9f504
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cmbrandenburg/rss2email on toolchain try#58b21121d0b447ceb3f1a655155d802191acf044
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-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-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/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-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/cmbrandenburg/rss2email/Cargo.toml
[INFO] crate cmbrandenburg/rss2email already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking cmbrandenburg/rss2email against master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504 for pr-61100
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-61100/worker-6/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/cmbrandenburg/rss2email:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d23309288183c6063a14387cbf998345377451cae6310f1ccb555366fdd6ea0e
[INFO] running `"docker" "start" "-a" "d23309288183c6063a14387cbf998345377451cae6310f1ccb555366fdd6ea0e"`
[INFO] [stderr]    Compiling getopts v0.2.14
[INFO] [stderr]    Compiling derive_builder v0.5.0
[INFO] [stderr]     Checking num_cpus v1.5.1
[INFO] [stderr]     Checking encoding_rs v0.6.11
[INFO] [stderr]     Checking libflate v0.1.7
[INFO] [stderr]     Checking rmp v0.8.6
[INFO] [stderr]     Checking toml v0.4.5
[INFO] [stderr]    Compiling tempdir v0.3.5
[INFO] [stderr]     Checking idna v0.1.2
[INFO] [stderr]    Compiling email v0.0.17
[INFO] [stderr]     Checking textwrap v0.7.0
[INFO] [stderr]     Checking uuid v0.4.0
[INFO] [stderr]    Compiling derive_builder_core v0.1.7
[INFO] [stderr]     Checking chrono v0.3.0
[INFO] [stderr]     Checking chrono v0.4.0
[INFO] [stderr]     Checking native-tls v0.1.2
[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]     Checking clap v2.26.0
[INFO] [stderr]    Compiling pulldown-cmark v0.0.3
[INFO] [stderr]     Checking rmp-serde v0.13.6
[INFO] [stderr]     Checking url v1.5.0
[INFO] [stderr]    Compiling skeptic v0.6.1
[INFO] [stderr] warning[E0713]: borrow may still be in use when destructor runs
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/url-1.5.0/src/form_urlencoded.rs:251:40
[INFO] [stderr]     |
[INFO] [stderr] 249 | impl<'a> Target for ::UrlQuery<'a> {
[INFO] [stderr]     |      -- lifetime `'a` defined here
[INFO] [stderr] 250 |     fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization }
[INFO] [stderr] 251 |     fn finish(self) -> &'a mut ::Url { self.url }
[INFO] [stderr]     |                                        ^^^^^^^^ - here, drop of `self` needs exclusive access to `*self.url`, because the type `UrlQuery<'_>` implements the `Drop` trait
[INFO] [stderr]     |                                        |
[INFO] [stderr]     |                                        returning this value requires that `*self.url` is borrowed for `'a`
[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 lettre v0.6.2
[INFO] [stderr]     Checking hyper v0.10.12
[INFO] [stderr]     Checking serde_urlencoded v0.5.1
[INFO] [stderr]     Checking quick-xml v0.7.3
[INFO] [stderr]     Checking quick-xml v0.8.1
[INFO] [stderr]    Compiling escapade v0.0.3
[INFO] [stderr]     Checking rss v0.7.0
[INFO] [stderr]     Checking atom_syndication v0.5.4
[INFO] [stderr]     Checking hyper-native-tls v0.2.4
[INFO] [stderr]     Checking reqwest v0.6.2
[INFO] [stderr]     Checking rss2email v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.03s
[INFO] running `"docker" "inspect" "d23309288183c6063a14387cbf998345377451cae6310f1ccb555366fdd6ea0e"`
[INFO] running `"docker" "rm" "-f" "d23309288183c6063a14387cbf998345377451cae6310f1ccb555366fdd6ea0e"`
[INFO] [stdout] d23309288183c6063a14387cbf998345377451cae6310f1ccb555366fdd6ea0e