[INFO] crate gearley 0.0.1 is already in cache
[INFO] extracting crate gearley 0.0.1 into work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/gearley/0.0.1
[INFO] extracting crate gearley 0.0.1 into work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/gearley/0.0.1
[INFO] validating manifest of gearley-0.0.1 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 gearley-0.0.1 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 gearley-0.0.1
[INFO] finished frobbing gearley-0.0.1
[INFO] frobbed toml for gearley-0.0.1 written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/gearley/0.0.1/Cargo.toml
[INFO] started frobbing gearley-0.0.1
[INFO] finished frobbing gearley-0.0.1
[INFO] frobbed toml for gearley-0.0.1 written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/gearley/0.0.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking gearley-0.0.1 against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-5/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/gearley/0.0.1:/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] c43f6a2727df2fa42eb95f80689d19bd6c3a1bc8526056f7165fe8cf699ace9d
[INFO] running `"docker" "start" "-a" "c43f6a2727df2fa42eb95f80689d19bd6c3a1bc8526056f7165fe8cf699ace9d"`
[INFO] [stderr]     Checking optional v0.0.13
[INFO] [stderr]     Checking ref_slice v1.1.1
[INFO] [stderr]     Checking bit-matrix v0.2.0
[INFO] [stderr]     Checking cfg v0.3.0
[INFO] [stderr]     Checking gearley v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: type annotations needed
[INFO] [stderr]   --> src/forest/depth_first/cartesian_product.rs:26:41
[INFO] [stderr]    |
[INFO] [stderr] 26 |             *ptr = &*(*ptr as *const _).offset(1);
[INFO] [stderr]    |                                         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(tyvar_behind_raw_pointer)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
[INFO] [stderr]    = note: for more information, see issue #46906 <https://github.com/rust-lang/rust/issues/46906>
[INFO] [stderr] 
[INFO] [stderr] warning: type annotations needed
[INFO] [stderr]   --> src/forest/depth_first/cartesian_product.rs:26:41
[INFO] [stderr]    |
[INFO] [stderr] 26 |             *ptr = &*(*ptr as *const _).offset(1);
[INFO] [stderr]    |                                         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(tyvar_behind_raw_pointer)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
[INFO] [stderr]    = note: for more information, see issue #46906 <https://github.com/rust-lang/rust/issues/46906>
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/grammar.rs:623:26
[INFO] [stderr]     |
[INFO] [stderr] 623 |         for (rule, ((((((mut dst_rule, eval), event1), event2), nulling), t1), t2))
[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/grammar.rs:652:13
[INFO] [stderr]     |
[INFO] [stderr] 652 |         let mut slices = self.as_slices_mut();
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/grammar.rs:679:13
[INFO] [stderr]     |
[INFO] [stderr] 679 |         let mut prediction_matrix = &mut slices.prediction_matrix;
[INFO] [stderr]     |             ----^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning[E0502]: cannot borrow `*self.g` as immutable because it is also borrowed as mutable
[INFO] [stderr]    --> src/recognizer.rs:113:64
[INFO] [stderr]     |
[INFO] [stderr] 107 |         let mut completions = self.completions();
[INFO] [stderr]     |                               ---- mutable borrow occurs here
[INFO] [stderr] 108 |         while let Some(mut completion) = completions.next_completion() {
[INFO] [stderr]     |                                          ----------- mutable borrow later used here
[INFO] [stderr] ...
[INFO] [stderr] 113 |             if completion.origin == 0 && completion.lhs_sym == self.g.start_sym() {
[INFO] [stderr]     |                                                                ^^^^^^ immutable borrow occurs here
[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] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/grammar.rs:623:26
[INFO] [stderr]     |
[INFO] [stderr] 623 |         for (rule, ((((((mut dst_rule, eval), event1), event2), nulling), t1), t2))
[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/grammar.rs:652:13
[INFO] [stderr]     |
[INFO] [stderr] 652 |         let mut slices = self.as_slices_mut();
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/grammar.rs:679:13
[INFO] [stderr]     |
[INFO] [stderr] 679 |         let mut prediction_matrix = &mut slices.prediction_matrix;
[INFO] [stderr]     |             ----^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning[E0502]: cannot borrow `*self.g` as immutable because it is also borrowed as mutable
[INFO] [stderr]    --> src/recognizer.rs:113:64
[INFO] [stderr]     |
[INFO] [stderr] 107 |         let mut completions = self.completions();
[INFO] [stderr]     |                               ---- mutable borrow occurs here
[INFO] [stderr] 108 |         while let Some(mut completion) = completions.next_completion() {
[INFO] [stderr]     |                                          ----------- mutable borrow later used here
[INFO] [stderr] ...
[INFO] [stderr] 113 |             if completion.origin == 0 && completion.lhs_sym == self.g.start_sym() {
[INFO] [stderr]     |                                                                ^^^^^^ immutable borrow occurs here
[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] warning: unused macro definition
[INFO] [stderr]   --> tests/grammars/ambiguous_arith.rs:55:1
[INFO] [stderr]    |
[INFO] [stderr] 55 | / macro_rules! ambiguous_arith_rhs_elem {
[INFO] [stderr] 56 | |     ('+') => (0);
[INFO] [stderr] 57 | |     ('-') => (1);
[INFO] [stderr] 58 | |     ('*') => (2);
[INFO] [stderr] ...  |
[INFO] [stderr] 70 | |     ($e:expr) => ($e);
[INFO] [stderr] 71 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> tests/grammars/ambiguous_arith.rs:73:1
[INFO] [stderr]    |
[INFO] [stderr] 73 | / macro_rules! ambiguous_arith {
[INFO] [stderr] 74 | |     ($($e:tt)+) => (
[INFO] [stderr] 75 | |         &[$(ambiguous_arith_rhs_elem!($e) + 3,)+]
[INFO] [stderr] 76 | |     )
[INFO] [stderr] 77 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> tests/grammars/precedenced_arith.rs:50:1
[INFO] [stderr]    |
[INFO] [stderr] 50 | / macro_rules! precedenced_arith_rhs_elem {
[INFO] [stderr] 51 | |     ('+') => (0);
[INFO] [stderr] 52 | |     ('-') => (1);
[INFO] [stderr] 53 | |     ('*') => (2);
[INFO] [stderr] ...  |
[INFO] [stderr] 67 | |     ($e:expr) => ($e);
[INFO] [stderr] 68 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> tests/grammars/precedenced_arith.rs:70:1
[INFO] [stderr]    |
[INFO] [stderr] 70 | / macro_rules! precedenced_arith {
[INFO] [stderr] 71 | |     ($($e:tt)+) => (
[INFO] [stderr] 72 | |         &[$(precedenced_arith_rhs_elem!($e) + 4,)+]
[INFO] [stderr] 73 | |     )
[INFO] [stderr] 74 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> benches/../tests/grammars/ambiguous_arith.rs:55:1
[INFO] [stderr]    |
[INFO] [stderr] 55 | / macro_rules! ambiguous_arith_rhs_elem {
[INFO] [stderr] 56 | |     ('+') => (0);
[INFO] [stderr] 57 | |     ('-') => (1);
[INFO] [stderr] 58 | |     ('*') => (2);
[INFO] [stderr] ...  |
[INFO] [stderr] 70 | |     ($e:expr) => ($e);
[INFO] [stderr] 71 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> benches/../tests/grammars/ambiguous_arith.rs:73:1
[INFO] [stderr]    |
[INFO] [stderr] 73 | / macro_rules! ambiguous_arith {
[INFO] [stderr] 74 | |     ($($e:tt)+) => (
[INFO] [stderr] 75 | |         &[$(ambiguous_arith_rhs_elem!($e) + 3,)+]
[INFO] [stderr] 76 | |     )
[INFO] [stderr] 77 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> benches/../tests/grammars/precedenced_arith.rs:50:1
[INFO] [stderr]    |
[INFO] [stderr] 50 | / macro_rules! precedenced_arith_rhs_elem {
[INFO] [stderr] 51 | |     ('+') => (0);
[INFO] [stderr] 52 | |     ('-') => (1);
[INFO] [stderr] 53 | |     ('*') => (2);
[INFO] [stderr] ...  |
[INFO] [stderr] 67 | |     ($e:expr) => ($e);
[INFO] [stderr] 68 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> benches/../tests/grammars/precedenced_arith.rs:70:1
[INFO] [stderr]    |
[INFO] [stderr] 70 | / macro_rules! precedenced_arith {
[INFO] [stderr] 71 | |     ($($e:tt)+) => (
[INFO] [stderr] 72 | |         &[$(precedenced_arith_rhs_elem!($e) + 4,)+]
[INFO] [stderr] 73 | |     )
[INFO] [stderr] 74 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> tests/grammars/ambiguous_arith.rs:55:1
[INFO] [stderr]    |
[INFO] [stderr] 55 | / macro_rules! ambiguous_arith_rhs_elem {
[INFO] [stderr] 56 | |     ('+') => (0);
[INFO] [stderr] 57 | |     ('-') => (1);
[INFO] [stderr] 58 | |     ('*') => (2);
[INFO] [stderr] ...  |
[INFO] [stderr] 70 | |     ($e:expr) => ($e);
[INFO] [stderr] 71 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> tests/grammars/ambiguous_arith.rs:73:1
[INFO] [stderr]    |
[INFO] [stderr] 73 | / macro_rules! ambiguous_arith {
[INFO] [stderr] 74 | |     ($($e:tt)+) => (
[INFO] [stderr] 75 | |         &[$(ambiguous_arith_rhs_elem!($e) + 3,)+]
[INFO] [stderr] 76 | |     )
[INFO] [stderr] 77 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> tests/grammars/precedenced_arith.rs:50:1
[INFO] [stderr]    |
[INFO] [stderr] 50 | / macro_rules! precedenced_arith_rhs_elem {
[INFO] [stderr] 51 | |     ('+') => (0);
[INFO] [stderr] 52 | |     ('-') => (1);
[INFO] [stderr] 53 | |     ('*') => (2);
[INFO] [stderr] ...  |
[INFO] [stderr] 67 | |     ($e:expr) => ($e);
[INFO] [stderr] 68 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> tests/grammars/precedenced_arith.rs:70:1
[INFO] [stderr]    |
[INFO] [stderr] 70 | / macro_rules! precedenced_arith {
[INFO] [stderr] 71 | |     ($($e:tt)+) => (
[INFO] [stderr] 72 | |         &[$(precedenced_arith_rhs_elem!($e) + 4,)+]
[INFO] [stderr] 73 | |     )
[INFO] [stderr] 74 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> tests/grammars/ambiguous_arith.rs:55:1
[INFO] [stderr]    |
[INFO] [stderr] 55 | / macro_rules! ambiguous_arith_rhs_elem {
[INFO] [stderr] 56 | |     ('+') => (0);
[INFO] [stderr] 57 | |     ('-') => (1);
[INFO] [stderr] 58 | |     ('*') => (2);
[INFO] [stderr] ...  |
[INFO] [stderr] 70 | |     ($e:expr) => ($e);
[INFO] [stderr] 71 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> tests/grammars/ambiguous_arith.rs:73:1
[INFO] [stderr]    |
[INFO] [stderr] 73 | / macro_rules! ambiguous_arith {
[INFO] [stderr] 74 | |     ($($e:tt)+) => (
[INFO] [stderr] 75 | |         &[$(ambiguous_arith_rhs_elem!($e) + 3,)+]
[INFO] [stderr] 76 | |     )
[INFO] [stderr] 77 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> tests/grammars/precedenced_arith.rs:50:1
[INFO] [stderr]    |
[INFO] [stderr] 50 | / macro_rules! precedenced_arith_rhs_elem {
[INFO] [stderr] 51 | |     ('+') => (0);
[INFO] [stderr] 52 | |     ('-') => (1);
[INFO] [stderr] 53 | |     ('*') => (2);
[INFO] [stderr] ...  |
[INFO] [stderr] 67 | |     ($e:expr) => ($e);
[INFO] [stderr] 68 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> tests/grammars/precedenced_arith.rs:70:1
[INFO] [stderr]    |
[INFO] [stderr] 70 | / macro_rules! precedenced_arith {
[INFO] [stderr] 71 | |     ($($e:tt)+) => (
[INFO] [stderr] 72 | |         &[$(precedenced_arith_rhs_elem!($e) + 4,)+]
[INFO] [stderr] 73 | |     )
[INFO] [stderr] 74 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.51s
[INFO] running `"docker" "inspect" "c43f6a2727df2fa42eb95f80689d19bd6c3a1bc8526056f7165fe8cf699ace9d"`
[INFO] running `"docker" "rm" "-f" "c43f6a2727df2fa42eb95f80689d19bd6c3a1bc8526056f7165fe8cf699ace9d"`
[INFO] [stdout] c43f6a2727df2fa42eb95f80689d19bd6c3a1bc8526056f7165fe8cf699ace9d