[INFO] crate lexer 0.1.15 is already in cache
[INFO] extracting crate lexer 0.1.15 into work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/lexer/0.1.15
[INFO] extracting crate lexer 0.1.15 into work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/lexer/0.1.15
[INFO] validating manifest of lexer-0.1.15 on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of lexer-0.1.15 on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing lexer-0.1.15
[INFO] finished frobbing lexer-0.1.15
[INFO] frobbed toml for lexer-0.1.15 written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/lexer/0.1.15/Cargo.toml
[INFO] started frobbing lexer-0.1.15
[INFO] finished frobbing lexer-0.1.15
[INFO] frobbed toml for lexer-0.1.15 written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/lexer/0.1.15/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking lexer-0.1.15 against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-0/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/lexer/0.1.15:/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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 8eaaa8d9d5c0b4aeeae91c7c3a2814ff46738d2998bd4823858e8835c5178d84
[INFO] running `"docker" "start" "-a" "8eaaa8d9d5c0b4aeeae91c7c3a2814ff46738d2998bd4823858e8835c5178d84"`
[INFO] [stderr]     Checking peek-nth v0.1.0
[INFO] [stderr]     Checking lexer v0.1.15 (/opt/crater/workdir)
[INFO] [stderr] error[E0432]: unresolved import `alloc::arc`
[INFO] [stderr]  --> src/readers.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | use alloc::arc::Arc;
[INFO] [stderr]   |            ^^^ could not find `arc` in `alloc`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `alloc::arc`
[INFO] [stderr]  --> src/readers_builder.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | use alloc::arc::Arc;
[INFO] [stderr]   |            ^^^ could not find `arc` in `alloc`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/lines.rs:5:20
[INFO] [stderr]   |
[INFO] [stderr] 5 |     input: &'a mut Input,
[INFO] [stderr]   |                    ^^^^^ help: use `dyn`: `dyn Input`
[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/lines.rs:10:31
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn new(input: &'a mut Input, state: &'a mut State) -> Self {
[INFO] [stderr]    |                               ^^^^^ help: use `dyn`: `dyn Input`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/next.rs:6:17
[INFO] [stderr]   |
[INFO] [stderr] 6 |     input: &mut Input,
[INFO] [stderr]   |                 ^^^^^ help: use `dyn`: `dyn Input`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/reader.rs:9:41
[INFO] [stderr]   |
[INFO] [stderr] 9 |     fn read(&self, &Readers<T, E>, &mut Input, &State, &mut State) -> ReaderResult<T, E>;
[INFO] [stderr]   |                                         ^^^^^ help: use `dyn`: `dyn Input`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Any`
[INFO] [stderr]  --> src/readers.rs:4:17
[INFO] [stderr]   |
[INFO] [stderr] 4 | use core::any::{Any, TypeId};
[INFO] [stderr]   |                 ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/readers.rs:9:34
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub struct Readers<T, E>(Vec<Arc<Reader<T, E>>>);
[INFO] [stderr]   |                                  ^^^^^^^^^^^^ help: use `dyn`: `dyn Reader<T, E>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/readers.rs:70:52
[INFO] [stderr]    |
[INFO] [stderr] 70 |     pub fn get(&self, index: usize) -> Option<&Arc<Reader<T, E>>> {
[INFO] [stderr]    |                                                    ^^^^^^^^^^^^ help: use `dyn`: `dyn Reader<T, E>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/readers.rs:101:21
[INFO] [stderr]     |
[INFO] [stderr] 101 |     type Item = &'a Reader<T, E>;
[INFO] [stderr]     |                     ^^^^^^^^^^^^ help: use `dyn`: `dyn Reader<T, E>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/readers.rs:115:31
[INFO] [stderr]     |
[INFO] [stderr] 115 |     iter: slice::Iter<'a, Arc<Reader<T, E>>>,
[INFO] [stderr]     |                               ^^^^^^^^^^^^ help: use `dyn`: `dyn Reader<T, E>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/readers.rs:123:21
[INFO] [stderr]     |
[INFO] [stderr] 123 |     type Item = &'a Reader<T, E>;
[INFO] [stderr]     |                     ^^^^^^^^^^^^ help: use `dyn`: `dyn Reader<T, E>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/readers_builder.rs:6:52
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct ReadersBuilder<T, E>(pub(crate) Vec<Arc<Reader<T, E>>>);
[INFO] [stderr]   |                                                    ^^^^^^^^^^^^ help: use `dyn`: `dyn Reader<T, E>`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `alloc::arc`
[INFO] [stderr]  --> src/readers.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | use alloc::arc::Arc;
[INFO] [stderr]   |            ^^^ could not find `arc` in `alloc`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `alloc::arc`
[INFO] [stderr]  --> src/readers_builder.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | use alloc::arc::Arc;
[INFO] [stderr]   |            ^^^ could not find `arc` in `alloc`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/lines.rs:5:20
[INFO] [stderr]   |
[INFO] [stderr] 5 |     input: &'a mut Input,
[INFO] [stderr]   |                    ^^^^^ help: use `dyn`: `dyn Input`
[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/lines.rs:10:31
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn new(input: &'a mut Input, state: &'a mut State) -> Self {
[INFO] [stderr]    |                               ^^^^^ help: use `dyn`: `dyn Input`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/next.rs:6:17
[INFO] [stderr]   |
[INFO] [stderr] 6 |     input: &mut Input,
[INFO] [stderr]   |                 ^^^^^ help: use `dyn`: `dyn Input`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/reader.rs:9:41
[INFO] [stderr]   |
[INFO] [stderr] 9 |     fn read(&self, &Readers<T, E>, &mut Input, &State, &mut State) -> ReaderResult<T, E>;
[INFO] [stderr]   |                                         ^^^^^ help: use `dyn`: `dyn Input`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Any`
[INFO] [stderr]  --> src/readers.rs:4:17
[INFO] [stderr]   |
[INFO] [stderr] 4 | use core::any::{Any, TypeId};
[INFO] [stderr]   |                 ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/readers.rs:9:34
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub struct Readers<T, E>(Vec<Arc<Reader<T, E>>>);
[INFO] [stderr]   |                                  ^^^^^^^^^^^^ help: use `dyn`: `dyn Reader<T, E>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/readers.rs:70:52
[INFO] [stderr]    |
[INFO] [stderr] 70 |     pub fn get(&self, index: usize) -> Option<&Arc<Reader<T, E>>> {
[INFO] [stderr]    |                                                    ^^^^^^^^^^^^ help: use `dyn`: `dyn Reader<T, E>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/readers.rs:101:21
[INFO] [stderr]     |
[INFO] [stderr] 101 |     type Item = &'a Reader<T, E>;
[INFO] [stderr]     |                     ^^^^^^^^^^^^ help: use `dyn`: `dyn Reader<T, E>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/readers.rs:115:31
[INFO] [stderr]     |
[INFO] [stderr] 115 |     iter: slice::Iter<'a, Arc<Reader<T, E>>>,
[INFO] [stderr]     |                               ^^^^^^^^^^^^ help: use `dyn`: `dyn Reader<T, E>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/readers.rs:123:21
[INFO] [stderr]     |
[INFO] [stderr] 123 |     type Item = &'a Reader<T, E>;
[INFO] [stderr]     |                     ^^^^^^^^^^^^ help: use `dyn`: `dyn Reader<T, E>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/readers_builder.rs:6:52
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct ReadersBuilder<T, E>(pub(crate) Vec<Arc<Reader<T, E>>>);
[INFO] [stderr]   |                                                    ^^^^^^^^^^^^ help: use `dyn`: `dyn Reader<T, E>`
[INFO] [stderr] 
[INFO] [stderr] error[E0392]: parameter `T` is never used
[INFO] [stderr]  --> src/readers.rs:9:20
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub struct Readers<T, E>(Vec<Arc<Reader<T, E>>>);
[INFO] [stderr]   |                    ^ unused parameter
[INFO] [stderr]   |
[INFO] [stderr]   = help: consider removing `T` or using a marker such as `core::marker::PhantomData`
[INFO] [stderr] 
[INFO] [stderr] error[E0392]: parameter `E` is never used
[INFO] [stderr]  --> src/readers.rs:9:23
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub struct Readers<T, E>(Vec<Arc<Reader<T, E>>>);
[INFO] [stderr]   |                       ^ unused parameter
[INFO] [stderr]   |
[INFO] [stderr]   = help: consider removing `E` or using a marker such as `core::marker::PhantomData`
[INFO] [stderr] 
[INFO] [stderr] error[E0392]: parameter `T` is never used
[INFO] [stderr]    --> src/readers.rs:110:28
[INFO] [stderr]     |
[INFO] [stderr] 110 | pub struct ReadersIter<'a, T, E>
[INFO] [stderr]     |                            ^ unused parameter
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider removing `T` or using a marker such as `core::marker::PhantomData`
[INFO] [stderr] 
[INFO] [stderr] error[E0392]: parameter `E` is never used
[INFO] [stderr]    --> src/readers.rs:110:31
[INFO] [stderr]     |
[INFO] [stderr] 110 | pub struct ReadersIter<'a, T, E>
[INFO] [stderr]     |                               ^ unused parameter
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider removing `E` or using a marker such as `core::marker::PhantomData`
[INFO] [stderr] 
[INFO] [stderr] error[E0392]: parameter `T` is never used
[INFO] [stderr]  --> src/readers_builder.rs:6:27
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct ReadersBuilder<T, E>(pub(crate) Vec<Arc<Reader<T, E>>>);
[INFO] [stderr]   |                           ^ unused parameter
[INFO] [stderr]   |
[INFO] [stderr]   = help: consider removing `T` or using a marker such as `core::marker::PhantomData`
[INFO] [stderr] 
[INFO] [stderr] error[E0392]: parameter `E` is never used
[INFO] [stderr]  --> src/readers_builder.rs:6:30
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct ReadersBuilder<T, E>(pub(crate) Vec<Arc<Reader<T, E>>>);
[INFO] [stderr]   |                              ^ unused parameter
[INFO] [stderr]   |
[INFO] [stderr]   = help: consider removing `E` or using a marker such as `core::marker::PhantomData`
[INFO] [stderr] 
[INFO] [stderr] error[E0392]: parameter `T` is never used
[INFO] [stderr]  --> src/readers_lexer.rs:5:29
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct ReadersLexer<'a, T, E, I>
[INFO] [stderr]   |                             ^ unused parameter
[INFO] [stderr]   |
[INFO] [stderr]   = help: consider removing `T` or using a marker such as `core::marker::PhantomData`
[INFO] [stderr] 
[INFO] [stderr] error[E0392]: parameter `E` is never used
[INFO] [stderr]  --> src/readers_lexer.rs:5:32
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct ReadersLexer<'a, T, E, I>
[INFO] [stderr]   |                                ^ unused parameter
[INFO] [stderr]   |
[INFO] [stderr]   = help: consider removing `E` or using a marker such as `core::marker::PhantomData`
[INFO] [stderr] 
[INFO] [stderr] error[E0392]: parameter `T` is never used
[INFO] [stderr]  --> src/readers.rs:9:20
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub struct Readers<T, E>(Vec<Arc<Reader<T, E>>>);
[INFO] [stderr]   |                    ^ unused parameter
[INFO] [stderr]   |
[INFO] [stderr]   = help: consider removing `T` or using a marker such as `core::marker::PhantomData`
[INFO] [stderr] 
[INFO] [stderr] error[E0392]: parameter `E` is never used
[INFO] [stderr]  --> src/readers.rs:9:23
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub struct Readers<T, E>(Vec<Arc<Reader<T, E>>>);
[INFO] [stderr]   |                       ^ unused parameter
[INFO] [stderr]   |
[INFO] [stderr]   = help: consider removing `E` or using a marker such as `core::marker::PhantomData`
[INFO] [stderr] 
[INFO] [stderr] error[E0392]: parameter `T` is never used
[INFO] [stderr]    --> src/readers.rs:110:28
[INFO] [stderr]     |
[INFO] [stderr] 110 | pub struct ReadersIter<'a, T, E>
[INFO] [stderr]     |                            ^ unused parameter
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider removing `T` or using a marker such as `core::marker::PhantomData`
[INFO] [stderr] 
[INFO] [stderr] error[E0392]: parameter `E` is never used
[INFO] [stderr]    --> src/readers.rs:110:31
[INFO] [stderr]     |
[INFO] [stderr] 110 | pub struct ReadersIter<'a, T, E>
[INFO] [stderr]     |                               ^ unused parameter
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider removing `E` or using a marker such as `core::marker::PhantomData`
[INFO] [stderr] 
[INFO] [stderr] error[E0392]: parameter `T` is never used
[INFO] [stderr]  --> src/readers_builder.rs:6:27
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct ReadersBuilder<T, E>(pub(crate) Vec<Arc<Reader<T, E>>>);
[INFO] [stderr]   |                           ^ unused parameter
[INFO] [stderr]   |
[INFO] [stderr]   = help: consider removing `T` or using a marker such as `core::marker::PhantomData`
[INFO] [stderr] 
[INFO] [stderr] error[E0392]: parameter `E` is never used
[INFO] [stderr]  --> src/readers_builder.rs:6:30
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct ReadersBuilder<T, E>(pub(crate) Vec<Arc<Reader<T, E>>>);
[INFO] [stderr]   |                              ^ unused parameter
[INFO] [stderr]   |
[INFO] [stderr]   = help: consider removing `E` or using a marker such as `core::marker::PhantomData`
[INFO] [stderr] 
[INFO] [stderr] error[E0392]: parameter `T` is never used
[INFO] [stderr]  --> src/readers_lexer.rs:5:29
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct ReadersLexer<'a, T, E, I>
[INFO] [stderr]   |                             ^ unused parameter
[INFO] [stderr]   |
[INFO] [stderr]   = help: consider removing `T` or using a marker such as `core::marker::PhantomData`
[INFO] [stderr] 
[INFO] [stderr] error[E0392]: parameter `E` is never used
[INFO] [stderr]  --> src/readers_lexer.rs:5:32
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct ReadersLexer<'a, T, E, I>
[INFO] [stderr]   |                                ^ unused parameter
[INFO] [stderr]   |
[INFO] [stderr]   = help: consider removing `E` or using a marker such as `core::marker::PhantomData`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 10 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0392, E0432.
[INFO] [stderr] For more information about an error, try `rustc --explain E0392`.
[INFO] [stderr] error: aborting due to 10 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0392, E0432.
[INFO] [stderr] For more information about an error, try `rustc --explain E0392`.
[INFO] [stderr] error: Could not compile `lexer`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: Could not compile `lexer`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "8eaaa8d9d5c0b4aeeae91c7c3a2814ff46738d2998bd4823858e8835c5178d84"`
[INFO] running `"docker" "rm" "-f" "8eaaa8d9d5c0b4aeeae91c7c3a2814ff46738d2998bd4823858e8835c5178d84"`
[INFO] [stdout] 8eaaa8d9d5c0b4aeeae91c7c3a2814ff46738d2998bd4823858e8835c5178d84