[INFO] cloning repository jamesmunns/cronbot-rs
[INFO] running `"git" "clone" "--bare" "git://github.com/jamesmunns/cronbot-rs.git" "work/cache/sources/gh/jamesmunns/cronbot-rs"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/jamesmunns/cronbot-rs'...
[INFO] running `"git" "clone" "work/cache/sources/gh/jamesmunns/cronbot-rs" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/jamesmunns/cronbot-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/jamesmunns/cronbot-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jamesmunns/cronbot-rs" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/jamesmunns/cronbot-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/jamesmunns/cronbot-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9a65adb2563b7953c12c4b5badf28de0a127538c
[INFO] sha for GitHub repo jamesmunns/cronbot-rs: 9a65adb2563b7953c12c4b5badf28de0a127538c
[INFO] validating manifest of jamesmunns/cronbot-rs on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jamesmunns/cronbot-rs on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jamesmunns/cronbot-rs
[INFO] finished frobbing jamesmunns/cronbot-rs
[INFO] frobbed toml for jamesmunns/cronbot-rs written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/jamesmunns/cronbot-rs/Cargo.toml
[INFO] started frobbing jamesmunns/cronbot-rs
[INFO] finished frobbing jamesmunns/cronbot-rs
[INFO] frobbed toml for jamesmunns/cronbot-rs written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/jamesmunns/cronbot-rs/Cargo.toml
[INFO] crate jamesmunns/cronbot-rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking jamesmunns/cronbot-rs against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-6/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/jamesmunns/cronbot-rs:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 977dd5884e096978522a19ab53e7ca12063623a08cf90d5f377abbd1a49b4102
[INFO] running `"docker" "start" "-a" "977dd5884e096978522a19ab53e7ca12063623a08cf90d5f377abbd1a49b4102"`
[INFO] [stderr]     Checking serde_json v0.9.10
[INFO] [stderr]     Checking url v1.5.0
[INFO] [stderr]     Checking backtrace-sys v0.1.11
[INFO] [stderr]     Checking backtrace v0.3.2
[INFO] [stderr]     Checking error-chain v0.10.0
[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 cron v0.3.0
[INFO] [stderr]     Checking hyper v0.10.12
[INFO] [stderr]     Checking serde_urlencoded v0.4.3
[INFO] [stderr]     Checking tungstenite v0.2.4
[INFO] [stderr] error[E0432]: unresolved import `std::collections::range`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/cron-0.3.0/src/time_unit/mod.rs:18:23
[INFO] [stderr]    |
[INFO] [stderr] 18 | use std::collections::range::{RangeArgument};
[INFO] [stderr]    |                       ^^^^^ could not find `range` in `collections`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `cron`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "977dd5884e096978522a19ab53e7ca12063623a08cf90d5f377abbd1a49b4102"`
[INFO] running `"docker" "rm" "-f" "977dd5884e096978522a19ab53e7ca12063623a08cf90d5f377abbd1a49b4102"`
[INFO] [stdout] 977dd5884e096978522a19ab53e7ca12063623a08cf90d5f377abbd1a49b4102