[INFO] fetching crate buf_redux 0.8.1...
[INFO] extracting crate buf_redux 0.8.1 into work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/buf_redux/0.8.1
[INFO] extracting crate buf_redux 0.8.1 into work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/buf_redux/0.8.1
[INFO] validating manifest of buf_redux-0.8.1 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 buf_redux-0.8.1 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 buf_redux-0.8.1
[INFO] finished frobbing buf_redux-0.8.1
[INFO] frobbed toml for buf_redux-0.8.1 written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/buf_redux/0.8.1/Cargo.toml
[INFO] started frobbing buf_redux-0.8.1
[INFO] finished frobbing buf_redux-0.8.1
[INFO] frobbed toml for buf_redux-0.8.1 written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/buf_redux/0.8.1/Cargo.toml
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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] checking buf_redux-0.8.1 against try#8f81d0bf6baf07b92f1246696722485c4ca0b049 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-1/try#8f81d0bf6baf07b92f1246696722485c4ca0b049:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/buf_redux/0.8.1:/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" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 9e32754ee258a2616130990e1d125cd5c0d3bf577726d66dfa0b8dca8a6e4c84
[INFO] running `"docker" "start" "-a" "9e32754ee258a2616130990e1d125cd5c0d3bf577726d66dfa0b8dca8a6e4c84"`
[INFO] [stderr]     Checking slice-deque v0.1.16
[INFO] [stderr]     Checking buf_redux v0.8.1 (/opt/crater/workdir)
[INFO] [stderr] error: meta-variable repeats with different Kleene operator
[INFO] [stderr]   --> src/buffer/mod.rs:71:15
[INFO] [stderr]    |
[INFO] [stderr] 69 |     ($($($qualifiers:ident)+ ($($args:tt)*) [$($passargs:tt)*] $(-> $ret:ty)*);+;) => (
[INFO] [stderr]    |                                                                                - expected repetition
[INFO] [stderr] 70 |         $(forward_method! {
[INFO] [stderr] 71 |             $($qualifiers)+ ($($args)*) [$($passargs)*] $(-> $ret)*
[INFO] [stderr]    |               ^^^^^^^^^^^
[INFO] [stderr] 72 |         })*
[INFO] [stderr]    |           - conflicting repetition
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(meta_variable_misuse)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: meta-variable repeats with different Kleene operator
[INFO] [stderr]   --> src/buffer/mod.rs:71:32
[INFO] [stderr]    |
[INFO] [stderr] 69 |     ($($($qualifiers:ident)+ ($($args:tt)*) [$($passargs:tt)*] $(-> $ret:ty)*);+;) => (
[INFO] [stderr]    |                                                                                - expected repetition
[INFO] [stderr] 70 |         $(forward_method! {
[INFO] [stderr] 71 |             $($qualifiers)+ ($($args)*) [$($passargs)*] $(-> $ret)*
[INFO] [stderr]    |                                ^^^^^
[INFO] [stderr] 72 |         })*
[INFO] [stderr]    |           - conflicting repetition
[INFO] [stderr] 
[INFO] [stderr] error: meta-variable repeats with different Kleene operator
[INFO] [stderr]   --> src/buffer/mod.rs:71:44
[INFO] [stderr]    |
[INFO] [stderr] 69 |     ($($($qualifiers:ident)+ ($($args:tt)*) [$($passargs:tt)*] $(-> $ret:ty)*);+;) => (
[INFO] [stderr]    |                                                                                - expected repetition
[INFO] [stderr] 70 |         $(forward_method! {
[INFO] [stderr] 71 |             $($qualifiers)+ ($($args)*) [$($passargs)*] $(-> $ret)*
[INFO] [stderr]    |                                            ^^^^^^^^^
[INFO] [stderr] 72 |         })*
[INFO] [stderr]    |           - conflicting repetition
[INFO] [stderr] 
[INFO] [stderr] error: meta-variable repeats with different Kleene operator
[INFO] [stderr]   --> src/buffer/mod.rs:71:62
[INFO] [stderr]    |
[INFO] [stderr] 69 |     ($($($qualifiers:ident)+ ($($args:tt)*) [$($passargs:tt)*] $(-> $ret:ty)*);+;) => (
[INFO] [stderr]    |                                                                                - expected repetition
[INFO] [stderr] 70 |         $(forward_method! {
[INFO] [stderr] 71 |             $($qualifiers)+ ($($args)*) [$($passargs)*] $(-> $ret)*
[INFO] [stderr]    |                                                              ^^^^
[INFO] [stderr] 72 |         })*
[INFO] [stderr]    |           - conflicting repetition
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:372:45
[INFO] [stderr]     |
[INFO] [stderr] 372 |     pub fn boxed<'a>(self) -> BufReader<Box<Read + 'a>, P> where R: 'a {
[INFO] [stderr]     |                                             ^^^^^^^^^ help: use `dyn`: `dyn Read + 'a`
[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:373:24
[INFO] [stderr]     |
[INFO] [stderr] 373 |         let inner: Box<Read + 'a> = Box::new(self.inner);
[INFO] [stderr]     |                        ^^^^^^^^^ help: use `dyn`: `dyn Read + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:870:32
[INFO] [stderr]     |
[INFO] [stderr] 870 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]     |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1272:42
[INFO] [stderr]      |
[INFO] [stderr] 1272 |     static DROP_ERR_HANDLER: RefCell<Box<Fn(&mut Write, &mut Buffer, io::Error)>>
[INFO] [stderr]      |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Write, &mut Buffer, io::Error)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1272:50
[INFO] [stderr]      |
[INFO] [stderr] 1272 |     static DROP_ERR_HANDLER: RefCell<Box<Fn(&mut Write, &mut Buffer, io::Error)>>
[INFO] [stderr]      |                                                  ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1285:18
[INFO] [stderr]      |
[INFO] [stderr] 1285 | where F: Fn(&mut Write, &mut Buffer, io::Error)
[INFO] [stderr]      |                  ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] error: meta-variable repeats with different Kleene operator
[INFO] [stderr]   --> src/buffer/mod.rs:71:15
[INFO] [stderr]    |
[INFO] [stderr] 69 |     ($($($qualifiers:ident)+ ($($args:tt)*) [$($passargs:tt)*] $(-> $ret:ty)*);+;) => (
[INFO] [stderr]    |                                                                                - expected repetition
[INFO] [stderr] 70 |         $(forward_method! {
[INFO] [stderr] 71 |             $($qualifiers)+ ($($args)*) [$($passargs)*] $(-> $ret)*
[INFO] [stderr]    |               ^^^^^^^^^^^
[INFO] [stderr] 72 |         })*
[INFO] [stderr]    |           - conflicting repetition
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(meta_variable_misuse)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: meta-variable repeats with different Kleene operator
[INFO] [stderr]   --> src/buffer/mod.rs:71:32
[INFO] [stderr]    |
[INFO] [stderr] 69 |     ($($($qualifiers:ident)+ ($($args:tt)*) [$($passargs:tt)*] $(-> $ret:ty)*);+;) => (
[INFO] [stderr]    |                                                                                - expected repetition
[INFO] [stderr] 70 |         $(forward_method! {
[INFO] [stderr] 71 |             $($qualifiers)+ ($($args)*) [$($passargs)*] $(-> $ret)*
[INFO] [stderr]    |                                ^^^^^
[INFO] [stderr] 72 |         })*
[INFO] [stderr]    |           - conflicting repetition
[INFO] [stderr] 
[INFO] [stderr] error: meta-variable repeats with different Kleene operator
[INFO] [stderr]   --> src/buffer/mod.rs:71:44
[INFO] [stderr]    |
[INFO] [stderr] 69 |     ($($($qualifiers:ident)+ ($($args:tt)*) [$($passargs:tt)*] $(-> $ret:ty)*);+;) => (
[INFO] [stderr]    |                                                                                - expected repetition
[INFO] [stderr] 70 |         $(forward_method! {
[INFO] [stderr] 71 |             $($qualifiers)+ ($($args)*) [$($passargs)*] $(-> $ret)*
[INFO] [stderr]    |                                            ^^^^^^^^^
[INFO] [stderr] 72 |         })*
[INFO] [stderr]    |           - conflicting repetition
[INFO] [stderr] 
[INFO] [stderr] error: meta-variable repeats with different Kleene operator
[INFO] [stderr]   --> src/buffer/mod.rs:71:62
[INFO] [stderr]    |
[INFO] [stderr] 69 |     ($($($qualifiers:ident)+ ($($args:tt)*) [$($passargs:tt)*] $(-> $ret:ty)*);+;) => (
[INFO] [stderr]    |                                                                                - expected repetition
[INFO] [stderr] 70 |         $(forward_method! {
[INFO] [stderr] 71 |             $($qualifiers)+ ($($args)*) [$($passargs)*] $(-> $ret)*
[INFO] [stderr]    |                                                              ^^^^
[INFO] [stderr] 72 |         })*
[INFO] [stderr]    |           - conflicting repetition
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:372:45
[INFO] [stderr]     |
[INFO] [stderr] 372 |     pub fn boxed<'a>(self) -> BufReader<Box<Read + 'a>, P> where R: 'a {
[INFO] [stderr]     |                                             ^^^^^^^^^ help: use `dyn`: `dyn Read + 'a`
[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:373:24
[INFO] [stderr]     |
[INFO] [stderr] 373 |         let inner: Box<Read + 'a> = Box::new(self.inner);
[INFO] [stderr]     |                        ^^^^^^^^^ help: use `dyn`: `dyn Read + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:870:32
[INFO] [stderr]     |
[INFO] [stderr] 870 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]     |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1272:42
[INFO] [stderr]      |
[INFO] [stderr] 1272 |     static DROP_ERR_HANDLER: RefCell<Box<Fn(&mut Write, &mut Buffer, io::Error)>>
[INFO] [stderr]      |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Write, &mut Buffer, io::Error)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1272:50
[INFO] [stderr]      |
[INFO] [stderr] 1272 |     static DROP_ERR_HANDLER: RefCell<Box<Fn(&mut Write, &mut Buffer, io::Error)>>
[INFO] [stderr]      |                                                  ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1285:18
[INFO] [stderr]      |
[INFO] [stderr] 1285 | where F: Fn(&mut Write, &mut Buffer, io::Error)
[INFO] [stderr]      |                  ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `buf_redux`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `buf_redux`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "9e32754ee258a2616130990e1d125cd5c0d3bf577726d66dfa0b8dca8a6e4c84"`
[INFO] running `"docker" "rm" "-f" "9e32754ee258a2616130990e1d125cd5c0d3bf577726d66dfa0b8dca8a6e4c84"`
[INFO] [stdout] 9e32754ee258a2616130990e1d125cd5c0d3bf577726d66dfa0b8dca8a6e4c84