[INFO] fetching crate antlr-rust 0.2.0... [INFO] checking antlr-rust-0.2.0 against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565 [INFO] extracting crate antlr-rust 0.2.0 into /workspace/builds/worker-5/source [INFO] validating manifest of crates.io crate antlr-rust 0.2.0 on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate antlr-rust 0.2.0 [INFO] finished tweaking crates.io crate antlr-rust 0.2.0 [INFO] tweaked toml for crates.io crate antlr-rust 0.2.0 written to /workspace/builds/worker-5/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded better_any v0.1.1 [INFO] [stderr] Downloaded murmur3 v0.4.1 [INFO] [stderr] Downloaded better_typeid_derive v0.1.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f84bfc14549f3ee3a66d18b601579f6aace43dfbcd56e2f2a74e83d604a77369 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "f84bfc14549f3ee3a66d18b601579f6aace43dfbcd56e2f2a74e83d604a77369", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f84bfc14549f3ee3a66d18b601579f6aace43dfbcd56e2f2a74e83d604a77369", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f84bfc14549f3ee3a66d18b601579f6aace43dfbcd56e2f2a74e83d604a77369", kill_on_drop: false }` [INFO] [stdout] f84bfc14549f3ee3a66d18b601579f6aace43dfbcd56e2f2a74e83d604a77369 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9fb415631b22e4c6a2ac4b7e34283ada6365b990f0d2a0e7ec1d1be04862ae84 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "9fb415631b22e4c6a2ac4b7e34283ada6365b990f0d2a0e7ec1d1be04862ae84", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling libc v0.2.88 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Checking bit-vec v0.6.3 [INFO] [stderr] Checking typed-arena v2.0.1 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking once_cell v1.7.2 [INFO] [stderr] Checking instant v0.1.9 [INFO] [stderr] Checking lock_api v0.4.2 [INFO] [stderr] Checking bit-set v0.5.2 [INFO] [stderr] Checking murmur3 v0.4.1 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking parking_lot_core v0.8.3 [INFO] [stderr] Compiling syn v1.0.63 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Compiling better_typeid_derive v0.1.1 [INFO] [stderr] Checking better_any v0.1.1 [INFO] [stderr] Checking antlr-rust v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field is never read: `cached_hash` [INFO] [stdout] --> src/atn_config_set.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | cached_hash: u64, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `cached_hash` [INFO] [stdout] --> src/atn_config_set.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | cached_hash: u64, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type does not implement `Debug`; consider adding `#[derive(Debug)]` or a manual implementation [INFO] [stdout] --> src/lexer.rs:78:1 [INFO] [stdout] | [INFO] [stdout] 78 | / pub struct BaseLexer< [INFO] [stdout] 79 | | 'input, [INFO] [stdout] 80 | | T: LexerRecog<'input, Self> + 'static, [INFO] [stdout] 81 | | Input: CharStream, [INFO] [stdout] ... | [INFO] [stdout] 109 | | pub text: Option<::Owned>, [INFO] [stdout] 110 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | #![warn(missing_debug_implementations)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type does not implement `Debug`; consider adding `#[derive(Debug)]` or a manual implementation [INFO] [stdout] --> src/parser.rs:107:1 [INFO] [stdout] | [INFO] [stdout] 107 | / pub struct BaseParser< [INFO] [stdout] 108 | | 'input, [INFO] [stdout] 109 | | Ext: 'static, //: ParserRecog<'input, Self> + 'static, // user provided behavior, such as semantic predicates [INFO] [stdout] 110 | | I: TokenStream<'input>, // input stream [INFO] [stdout] ... | [INFO] [stdout] 149 | | pd: PhantomData &'input str>, [INFO] [stdout] 150 | | } [INFO] [stdout] | |_^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type does not implement `Debug`; consider adding `#[derive(Debug)]` or a manual implementation [INFO] [stdout] --> src/lexer.rs:78:1 [INFO] [stdout] | [INFO] [stdout] 78 | / pub struct BaseLexer< [INFO] [stdout] 79 | | 'input, [INFO] [stdout] 80 | | T: LexerRecog<'input, Self> + 'static, [INFO] [stdout] 81 | | Input: CharStream, [INFO] [stdout] ... | [INFO] [stdout] 109 | | pub text: Option<::Owned>, [INFO] [stdout] 110 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | #![warn(missing_debug_implementations)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type does not implement `Debug`; consider adding `#[derive(Debug)]` or a manual implementation [INFO] [stdout] --> src/parser.rs:107:1 [INFO] [stdout] | [INFO] [stdout] 107 | / pub struct BaseParser< [INFO] [stdout] 108 | | 'input, [INFO] [stdout] 109 | | Ext: 'static, //: ParserRecog<'input, Self> + 'static, // user provided behavior, such as semantic predicates [INFO] [stdout] 110 | | I: TokenStream<'input>, // input stream [INFO] [stdout] ... | [INFO] [stdout] 149 | | pd: PhantomData &'input str>, [INFO] [stdout] 150 | | } [INFO] [stdout] | |_^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `#[macro_use]` import [INFO] [stdout] --> tests/perf.rs:4:1 [INFO] [stdout] | [INFO] [stdout] 4 | #[macro_use] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `performance` [INFO] [stdout] --> tests/perf.rs:22:8 [INFO] [stdout] | [INFO] [stdout] 22 | fn performance(_b: &mut Bencher) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `input` [INFO] [stdout] --> tests/perf.rs:31:5 [INFO] [stdout] | [INFO] [stdout] 31 | / const input: &str = "\ [INFO] [stdout] 32 | | between X1 and X2 or between X3 and X4 and [INFO] [stdout] 33 | | between X1 and X2 or between X3 and X4 and [INFO] [stdout] 34 | | between X1 and X2 or between X3 and X4 and [INFO] [stdout] ... | [INFO] [stdout] 46 | | between X1 and X2 or between X3 and X4 [INFO] [stdout] 47 | | ;"; [INFO] [stdout] | |____________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `inner_deref` has been stable since 1.47.0 and no longer requires an attribute to enable [INFO] [stdout] --> tests/perf.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(inner_deref)] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused attribute [INFO] [stdout] --> tests/perf.rs:20:5 [INFO] [stdout] | [INFO] [stdout] 20 | #[ignore] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_attributes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `input` should have an upper case name [INFO] [stdout] --> tests/perf.rs:31:11 [INFO] [stdout] | [INFO] [stdout] 31 | const input: &str = "\ [INFO] [stdout] | ^^^^^ help: convert the identifier to upper case: `INPUT` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_upper_case_globals)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stdout] --> tests/my_test.rs:3:12 [INFO] [stdout] | [INFO] [stdout] 3 | #![feature(specialization)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(incomplete_features)]` on by default [INFO] [stdout] = note: see issue #31844 for more information [INFO] [stdout] = help: consider using `min_specialization` instead, which is more stable and complete [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `ParseTreeWalker`, `Tree`, `VisitChildren` [INFO] [stdout] --> tests/my_test.rs:23:57 [INFO] [stdout] | [INFO] [stdout] 23 | ParseTree, ParseTreeListener, ParseTreeVisitor, ParseTreeWalker, TerminalNode, Tree, [INFO] [stdout] | ^^^^^^^^^^^^^^^ ^^^^ [INFO] [stdout] 24 | VisitChildren, Visitable, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary braces around `while` condition [INFO] [stdout] --> tests/gen/referencetoatnparser.rs:303:23 [INFO] [stdout] | [INFO] [stdout] 303 | while { _alt != 2 && _alt != INVALID_ALT } { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_braces)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary braces around `if` condition [INFO] [stdout] --> tests/gen/referencetoatnparser.rs:309:36 [INFO] [stdout] | [INFO] [stdout] 309 | ... if { !(_la == ID || _la == ATN) } { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary braces around `while` condition [INFO] [stdout] --> tests/gen/simplelrparser.rs:409:23 [INFO] [stdout] | [INFO] [stdout] 409 | while { _alt != 2 && _alt != INVALID_ALT } { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary braces around `while` condition [INFO] [stdout] --> tests/gen/labelsparser.rs:1036:23 [INFO] [stdout] | [INFO] [stdout] 1036 | while { _alt != 2 && _alt != INVALID_ALT } { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::Read` [INFO] [stdout] --> tests/my_test.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | use std::io::Read; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `inner_deref` has been stable since 1.47.0 and no longer requires an attribute to enable [INFO] [stdout] --> tests/my_test.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(inner_deref)] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 24.43s [INFO] running `Command { std: "docker" "inspect" "9fb415631b22e4c6a2ac4b7e34283ada6365b990f0d2a0e7ec1d1be04862ae84", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9fb415631b22e4c6a2ac4b7e34283ada6365b990f0d2a0e7ec1d1be04862ae84", kill_on_drop: false }` [INFO] [stdout] 9fb415631b22e4c6a2ac4b7e34283ada6365b990f0d2a0e7ec1d1be04862ae84