[INFO] crate walkdir 2.2.7 is already in cache
[INFO] extracting crate walkdir 2.2.7 into work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/walkdir/2.2.7
[INFO] extracting crate walkdir 2.2.7 into work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/walkdir/2.2.7
[INFO] validating manifest of walkdir-2.2.7 on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of walkdir-2.2.7 on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing walkdir-2.2.7
[INFO] finished frobbing walkdir-2.2.7
[INFO] frobbed toml for walkdir-2.2.7 written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/walkdir/2.2.7/Cargo.toml
[INFO] started frobbing walkdir-2.2.7
[INFO] finished frobbing walkdir-2.2.7
[INFO] frobbed toml for walkdir-2.2.7 written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/walkdir/2.2.7/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking walkdir-2.2.7 against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-7/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/walkdir/2.2.7:/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" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4cde70ad599446d3a0ee6c9f14246c6e268f341df51ba18e88b6a6f8cd8ec04a
[INFO] running `"docker" "start" "-a" "4cde70ad599446d3a0ee6c9f14246c6e268f341df51ba18e88b6a6f8cd8ec04a"`
[INFO] [stderr]     Checking walkdir v2.2.7 (/opt/crater/workdir)
[INFO] [stderr]     Checking rand_core v0.2.2
[INFO] [stderr]     Checking quickcheck v0.7.2
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:249:9
[INFO] [stderr]     |
[INFO] [stderr] 249 |         FnMut(&DirEntry,&DirEntry) -> Ordering + Send + Sync + 'static
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&DirEntry,&DirEntry) -> Ordering + Send + Sync + 'static`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1645:32
[INFO] [stderr]      |
[INFO] [stderr] 1645 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]      |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:686:17
[INFO] [stderr]     |
[INFO] [stderr] 686 |             let mut dent = itry!(DirEntry::from_path(0, start, false));
[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: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/tests.rs:212:37
[INFO] [stderr]     |
[INFO] [stderr] 212 |             fn shrink(&self) -> Box<Iterator<Item=NonEmptyAscii>> {
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=NonEmptyAscii>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/tests.rs:241:29
[INFO] [stderr]     |
[INFO] [stderr] 241 |     fn shrink(&self) -> Box<Iterator<Item=Tree>> {
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Tree>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/tests.rs:242:24
[INFO] [stderr]     |
[INFO] [stderr] 242 |         let trees: Box<Iterator<Item=Tree>> = match *self {
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Tree>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:249:9
[INFO] [stderr]     |
[INFO] [stderr] 249 |         FnMut(&DirEntry,&DirEntry) -> Ordering + Send + Sync + 'static
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&DirEntry,&DirEntry) -> Ordering + Send + Sync + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1645:32
[INFO] [stderr]      |
[INFO] [stderr] 1645 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]      |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:686:17
[INFO] [stderr]     |
[INFO] [stderr] 686 |             let mut dent = itry!(DirEntry::from_path(0, start, false));
[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 5.61s
[INFO] running `"docker" "inspect" "4cde70ad599446d3a0ee6c9f14246c6e268f341df51ba18e88b6a6f8cd8ec04a"`
[INFO] running `"docker" "rm" "-f" "4cde70ad599446d3a0ee6c9f14246c6e268f341df51ba18e88b6a6f8cd8ec04a"`
[INFO] [stdout] 4cde70ad599446d3a0ee6c9f14246c6e268f341df51ba18e88b6a6f8cd8ec04a