[INFO] fetching crate gearley 0.0.1... [INFO] checking gearley-0.0.1 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1 [INFO] extracting crate gearley 0.0.1 into /workspace/builds/worker-9/source [INFO] validating manifest of crates.io crate gearley 0.0.1 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd [INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate gearley 0.0.1 [INFO] finished tweaking crates.io crate gearley 0.0.1 [INFO] tweaked toml for crates.io crate gearley 0.0.1 written to /workspace/builds/worker-9/source/Cargo.toml [INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] b5bb0e24778b4be13e8bf3c67265eed30f68e59fd8d5aba979bd8bfe3b65e254 [INFO] running `"docker" "start" "-a" "b5bb0e24778b4be13e8bf3c67265eed30f68e59fd8d5aba979bd8bfe3b65e254"` [INFO] [stderr] Checking typed-arena v1.6.1 [INFO] [stderr] Checking ref_slice v1.2.0 [INFO] [stderr] Checking optional v0.0.13 [INFO] [stderr] Checking bit-matrix v0.2.0 [INFO] [stderr] Checking cfg v0.3.0 [INFO] [stderr] Checking gearley v0.0.1 (/opt/rustwide/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 [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 [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: 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] error[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] error[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] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0502`. [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0502`. [INFO] [stderr] error: could not compile `gearley`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `gearley`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "b5bb0e24778b4be13e8bf3c67265eed30f68e59fd8d5aba979bd8bfe3b65e254"` [INFO] running `"docker" "rm" "-f" "b5bb0e24778b4be13e8bf3c67265eed30f68e59fd8d5aba979bd8bfe3b65e254"` [INFO] [stdout] b5bb0e24778b4be13e8bf3c67265eed30f68e59fd8d5aba979bd8bfe3b65e254