[INFO] updating cached repository c-edw/finch
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/c-edw/finch
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/c-edw/finch" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/c-edw/finch"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/c-edw/finch'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/c-edw/finch" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/c-edw/finch"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/c-edw/finch'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a04b04081af652cff969a7b9a4d25004737d464e
[INFO] sha for GitHub repo c-edw/finch: a04b04081af652cff969a7b9a4d25004737d464e
[INFO] validating manifest of c-edw/finch on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of c-edw/finch on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing c-edw/finch
[INFO] finished frobbing c-edw/finch
[INFO] frobbed toml for c-edw/finch written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/c-edw/finch/Cargo.toml
[INFO] started frobbing c-edw/finch
[INFO] finished frobbing c-edw/finch
[INFO] frobbed toml for c-edw/finch written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/c-edw/finch/Cargo.toml
[INFO] crate c-edw/finch already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking c-edw/finch against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-6/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/c-edw/finch:/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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 38b8ebcc1a8bbeb4e79afd1cc76f19c2e9d9e9e1d88ac2c94e83e586b85d0a9b
[INFO] running `"docker" "start" "-a" "38b8ebcc1a8bbeb4e79afd1cc76f19c2e9d9e9e1d88ac2c94e83e586b85d0a9b"`
[INFO] [stderr]    Compiling httparse v1.3.1
[INFO] [stderr]     Checking log v0.4.2
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking term v0.5.1
[INFO] [stderr]     Checking inflate v0.3.4
[INFO] [stderr]     Checking deflate v0.7.18
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]     Checking url v1.7.0
[INFO] [stderr]     Checking serde_json v1.0.22
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]     Checking tokio-io v0.1.7
[INFO] [stderr]     Checking mio v0.6.14
[INFO] [stderr]     Checking tokio-threadpool v0.1.4
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking want v0.0.4
[INFO] [stderr]    Compiling structopt-derive v0.2.10
[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-1.7.0/src/form_urlencoded.rs:261:40
[INFO] [stderr]     |
[INFO] [stderr] 259 | impl<'a> Target for ::UrlQuery<'a> {
[INFO] [stderr]     |      -- lifetime `'a` defined here
[INFO] [stderr] 260 |     fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization }
[INFO] [stderr] 261 |     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 num-iter v0.1.37
[INFO] [stderr]     Checking chrono v0.4.4
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking tokio-codec v0.1.0
[INFO] [stderr]     Checking serde_urlencoded v0.5.2
[INFO] [stderr]     Checking png v0.11.0
[INFO] [stderr]     Checking tokio-fs v0.1.1
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking rayon-core v1.4.0
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.5
[INFO] [stderr]     Checking tokio-reactor v0.1.2
[INFO] [stderr]     Checking rayon v1.0.1
[INFO] [stderr]     Checking tokio-tcp v0.1.0
[INFO] [stderr]     Checking tokio-udp v0.1.1
[INFO] [stderr]     Checking simplelog v0.5.2
[INFO] [stderr]     Checking tokio v0.1.7
[INFO] [stderr]     Checking structopt v0.2.10
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking tokio-proto v0.1.1
[INFO] [stderr]     Checking tokio-tls v0.1.4
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking image v0.18.0
[INFO] [stderr]     Checking hyper v0.11.27
[INFO] [stderr]     Checking hyper-tls v0.1.3
[INFO] [stderr]     Checking reqwest v0.8.6
[INFO] [stderr]     Checking finch v0.4.3 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/main.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/main.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/process.rs:57:13
[INFO] [stderr]    |
[INFO] [stderr] 57 |         let mut req = match client.get(&image.url).send() {
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/process.rs:57:13
[INFO] [stderr]    |
[INFO] [stderr] 57 |         let mut req = match client.get(&image.url).send() {
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 46.73s
[INFO] running `"docker" "inspect" "38b8ebcc1a8bbeb4e79afd1cc76f19c2e9d9e9e1d88ac2c94e83e586b85d0a9b"`
[INFO] running `"docker" "rm" "-f" "38b8ebcc1a8bbeb4e79afd1cc76f19c2e9d9e9e1d88ac2c94e83e586b85d0a9b"`
[INFO] [stdout] 38b8ebcc1a8bbeb4e79afd1cc76f19c2e9d9e9e1d88ac2c94e83e586b85d0a9b