[INFO] crate wcstr 0.1.4 is already in cache
[INFO] extracting crate wcstr 0.1.4 into work/ex/beta-1.38-1/sources/1.37.0/reg/wcstr/0.1.4
[INFO] extracting crate wcstr 0.1.4 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/wcstr/0.1.4
[INFO] validating manifest of wcstr-0.1.4 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of wcstr-0.1.4 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing wcstr-0.1.4
[INFO] finished frobbing wcstr-0.1.4
[INFO] frobbed toml for wcstr-0.1.4 written to work/ex/beta-1.38-1/sources/1.37.0/reg/wcstr/0.1.4/Cargo.toml
[INFO] started frobbing wcstr-0.1.4
[INFO] finished frobbing wcstr-0.1.4
[INFO] frobbed toml for wcstr-0.1.4 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/wcstr/0.1.4/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing wcstr-0.1.4 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/wcstr/0.1.4:/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] be5a6822557867fb2d79195646c44cd6258d52455613e47c52b756d28a01750f
[INFO] running `"docker" "start" "-a" "be5a6822557867fb2d79195646c44cd6258d52455613e47c52b756d28a01750f"`
[INFO] [stderr]    Compiling wcstr v0.1.4 (/opt/crater/workdir)
[INFO] [stderr] error[E0433]: failed to resolve: could not find `windows` in `os`
[INFO] [stderr]  --> src/wcstr.rs:4:16
[INFO] [stderr]   |
[INFO] [stderr] 4 | use ::std::os::windows::ffi::{OsStringExt, OsStrExt};
[INFO] [stderr]   |                ^^^^^^^ could not find `windows` in `os`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `windows` in `os`
[INFO] [stderr]  --> src/wcstring.rs:4:16
[INFO] [stderr]   |
[INFO] [stderr] 4 | use ::std::os::windows::ffi::OsStrExt;
[INFO] [stderr]   |                ^^^^^^^ could not find `windows` in `os`
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `OsStrExt`, `OsStringExt`
[INFO] [stderr]  --> src/wcstr.rs:4:31
[INFO] [stderr]   |
[INFO] [stderr] 4 | use ::std::os::windows::ffi::{OsStringExt, OsStrExt};
[INFO] [stderr]   |                               ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::std::os::windows::ffi::OsStrExt`
[INFO] [stderr]  --> src/wcstring.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use ::std::os::windows::ffi::OsStrExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `from_wide` found for type `std::ffi::OsString` in the current scope
[INFO] [stderr]    --> src/wcstr.rs:103:19
[INFO] [stderr]     |
[INFO] [stderr] 103 |         OsString::from_wide(self.to_slice())
[INFO] [stderr]     |                   ^^^^^^^^^ function or associated item not found in `std::ffi::OsString`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `encode_wide` found for type `&std::ffi::OsStr` in the current scope
[INFO] [stderr]    --> src/wcstr.rs:146:28
[INFO] [stderr]     |
[INFO] [stderr] 146 |         let mut s_iter = s.encode_wide();
[INFO] [stderr]     |                            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `encode_wide` found for type `&std::ffi::OsStr` in the current scope
[INFO] [stderr]    --> src/wcstr.rs:162:51
[INFO] [stderr]     |
[INFO] [stderr] 162 |         self.to_slice().iter().zip(other.as_ref().encode_wide()).all(|(&a, b)| a == b)
[INFO] [stderr]     |                                                   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `encode_wide` found for type `&std::ffi::OsStr` in the current scope
[INFO] [stderr]    --> src/wcstring.rs:110:38
[INFO] [stderr]     |
[INFO] [stderr] 110 |         let v: Vec<u16> = s.as_ref().encode_wide().collect();
[INFO] [stderr]     |                                      ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `encode_wide` found for type `&std::ffi::OsStr` in the current scope
[INFO] [stderr]    --> src/wcstring.rs:123:38
[INFO] [stderr]     |
[INFO] [stderr] 123 |         let v: Vec<u16> = s.as_ref().encode_wide().collect();
[INFO] [stderr]     |                                      ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `encode_wide` found for type `&std::ffi::OsStr` in the current scope
[INFO] [stderr]    --> src/wcstring.rs:268:29
[INFO] [stderr]     |
[INFO] [stderr] 268 |         self.inner.extend(s.encode_wide().take_while(|&w| { not_nuled = w != 0; not_nuled }));
[INFO] [stderr]     |                             ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `encode_wide` found for type `&std::ffi::OsStr` in the current scope
[INFO] [stderr]    --> src/wcstring.rs:289:29
[INFO] [stderr]     |
[INFO] [stderr] 289 |         self.inner.extend(s.encode_wide());
[INFO] [stderr]     |                             ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `encode_wide` found for type `&std::ffi::OsStr` in the current scope
[INFO] [stderr]    --> src/wcstring.rs:310:29
[INFO] [stderr]     |
[INFO] [stderr] 310 |         self.inner.extend(s.encode_wide().take_while(|&w| { not_nuled = w != 0; not_nuled }));
[INFO] [stderr]     |                             ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 10 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0433, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0433`.
[INFO] [stderr] error: Could not compile `wcstr`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "be5a6822557867fb2d79195646c44cd6258d52455613e47c52b756d28a01750f"`
[INFO] running `"docker" "rm" "-f" "be5a6822557867fb2d79195646c44cd6258d52455613e47c52b756d28a01750f"`
[INFO] [stdout] be5a6822557867fb2d79195646c44cd6258d52455613e47c52b756d28a01750f