[INFO] cloning repository https://github.com/scole66/rust-e262 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/scole66/rust-e262" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscole66%2Frust-e262", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscole66%2Frust-e262'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 8d930de49bb90b8b5f98ba3cd08dc128cb05528e [INFO] checking scole66/rust-e262 against beta for pr-78714 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscole66%2Frust-e262" "/workspace/builds/worker-0/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/scole66/rust-e262 on toolchain beta [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/scole66/rust-e262 [INFO] finished tweaking git repo https://github.com/scole66/rust-e262 [INFO] tweaked toml for git repo https://github.com/scole66/rust-e262 written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate git repo https://github.com/scole66/rust-e262 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 48b8e4b5b3dfd38464370f6aa1dd17e2bba48d6d344c0e7dd4761488882168f1 [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" "48b8e4b5b3dfd38464370f6aa1dd17e2bba48d6d344c0e7dd4761488882168f1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "48b8e4b5b3dfd38464370f6aa1dd17e2bba48d6d344c0e7dd4761488882168f1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "48b8e4b5b3dfd38464370f6aa1dd17e2bba48d6d344c0e7dd4761488882168f1", kill_on_drop: false }` [INFO] [stdout] 48b8e4b5b3dfd38464370f6aa1dd17e2bba48d6d344c0e7dd4761488882168f1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4911b3b27c6d28ef4d366283cd6d02c7fea5c8ac07a3f34a7ec7990dd929e76e [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" "4911b3b27c6d28ef4d366283cd6d02c7fea5c8ac07a3f34a7ec7990dd929e76e", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.77 [INFO] [stderr] Compiling getrandom v0.1.15 [INFO] [stderr] Compiling cc v1.0.60 [INFO] [stderr] Compiling pkg-config v0.3.18 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling rayon-core v1.8.1 [INFO] [stderr] Checking ppv-lite86 v0.2.9 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling serde v1.0.116 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Compiling serde_json v1.0.57 [INFO] [stderr] Checking remove_dir_all v0.5.3 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking podio v0.1.7 [INFO] [stderr] Checking itoa v0.4.6 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking semver-parser v0.7.0 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking fomat-macros v0.3.1 [INFO] [stderr] Checking rustc-hash v1.1.0 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling num-integer v0.1.43 [INFO] [stderr] Compiling memoffset v0.5.6 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling num-bigint v0.3.0 [INFO] [stderr] Compiling rayon v1.4.0 [INFO] [stderr] Compiling num-iter v0.1.41 [INFO] [stderr] Compiling num-rational v0.3.0 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking semver v0.9.0 [INFO] [stderr] Checking ryu v1.0.5 [INFO] [stderr] Checking aho-corasick v0.7.13 [INFO] [stderr] Checking bstr v0.2.13 [INFO] [stderr] Checking quick-xml v0.18.1 [INFO] [stderr] Checking generic-array v0.12.3 [INFO] [stderr] Checking digest v0.8.1 [INFO] [stderr] Checking crossbeam-channel v0.4.4 [INFO] [stderr] Checking crossbeam-queue v0.2.3 [INFO] [stderr] Checking block-buffer v0.7.3 [INFO] [stderr] Checking md-5 v0.8.0 [INFO] [stderr] Checking crossbeam-deque v0.7.3 [INFO] [stderr] Compiling libz-sys v1.1.2 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking dirs-sys v0.3.5 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking crossbeam v0.7.3 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking regex v1.3.9 [INFO] [stderr] Checking dirs v2.0.2 [INFO] [stderr] Checking num-complex v0.3.0 [INFO] [stderr] Checking msdos_time v0.1.6 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking term v0.6.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking flate2 v1.0.17 [INFO] [stderr] Checking chrono v0.4.15 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking zip v0.4.2 [INFO] [stderr] Checking simplelog v0.7.6 [INFO] [stderr] Checking globset v0.4.5 [INFO] [stderr] Checking tempfile v3.1.0 [INFO] [stderr] Checking uuid v0.8.1 [INFO] [stderr] Checking num v0.3.0 [INFO] [stderr] Checking grcov v0.5.15 [INFO] [stderr] Checking res v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `scanner` [INFO] [stdout] --> src/main.rs:317:15 [INFO] [stdout] | [INFO] [stdout] 317 | fn script<'a>(scanner: &'a mut Scanner) -> Result, String> { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scanner` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `vm` [INFO] [stdout] --> src/main.rs:337:14 [INFO] [stdout] | [INFO] [stdout] 337 | fn interpret(vm: &mut VM, source: &str) -> Result { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_vm` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `source` [INFO] [stdout] --> src/main.rs:327:17 [INFO] [stdout] | [INFO] [stdout] 327 | fn generate(source: &str) -> Result, String> { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_source` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `scanner` [INFO] [stdout] --> src/scanner/mod.rs:1433:20 [INFO] [stdout] | [INFO] [stdout] 1433 | fn escape_sequence(scanner: &Scanner, source: &str) -> Option { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scanner` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `source` [INFO] [stdout] --> src/scanner/mod.rs:1433:39 [INFO] [stdout] | [INFO] [stdout] 1433 | fn escape_sequence(scanner: &Scanner, source: &str) -> Option { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_source` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `scanner` [INFO] [stdout] --> src/scanner/mod.rs:1500:13 [INFO] [stdout] | [INFO] [stdout] 1500 | fn template(scanner: &Scanner, source: &str) -> Result, String> { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scanner` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `source` [INFO] [stdout] --> src/scanner/mod.rs:1500:32 [INFO] [stdout] | [INFO] [stdout] 1500 | fn template(scanner: &Scanner, source: &str) -> Result, String> { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_source` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `scanner` [INFO] [stdout] --> src/scanner/mod.rs:1575:5 [INFO] [stdout] | [INFO] [stdout] 1575 | scanner: &Scanner, [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scanner` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `source` [INFO] [stdout] --> src/scanner/mod.rs:1576:5 [INFO] [stdout] | [INFO] [stdout] 1576 | source: &str, [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_source` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `goal` [INFO] [stdout] --> src/scanner/mod.rs:1577:5 [INFO] [stdout] | [INFO] [stdout] 1577 | goal: ScanGoal, [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_goal` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `scanner` [INFO] [stdout] --> src/scanner/mod.rs:1582:5 [INFO] [stdout] | [INFO] [stdout] 1582 | scanner: &Scanner, [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scanner` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `source` [INFO] [stdout] --> src/scanner/mod.rs:1583:5 [INFO] [stdout] | [INFO] [stdout] 1583 | source: &str, [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_source` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `goal` [INFO] [stdout] --> src/scanner/mod.rs:1584:5 [INFO] [stdout] | [INFO] [stdout] 1584 | goal: ScanGoal, [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_goal` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0515]: cannot return value referencing temporary value [INFO] [stdout] --> src/main.rs:169:9 [INFO] [stdout] | [INFO] [stdout] 169 | / match self { [INFO] [stdout] 170 | | IdentifierReference::Identifier(id) => id.string_value(), [INFO] [stdout] 171 | | IdentifierReference::Yield => &scanner::JSString::from_str("yield"), [INFO] [stdout] 172 | | IdentifierReference::Await => &scanner::JSString::from_str("await"), [INFO] [stdout] | | ------------------------------------ temporary value created here [INFO] [stdout] 173 | | } [INFO] [stdout] | |_________^ returns a value referencing data owned by the current function [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0515]: cannot return value referencing temporary value [INFO] [stdout] --> src/main.rs:169:9 [INFO] [stdout] | [INFO] [stdout] 169 | / match self { [INFO] [stdout] 170 | | IdentifierReference::Identifier(id) => id.string_value(), [INFO] [stdout] 171 | | IdentifierReference::Yield => &scanner::JSString::from_str("yield"), [INFO] [stdout] | | ------------------------------------ temporary value created here [INFO] [stdout] 172 | | IdentifierReference::Await => &scanner::JSString::from_str("await"), [INFO] [stdout] 173 | | } [INFO] [stdout] | |_________^ returns a value referencing data owned by the current function [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0515`. [INFO] [stdout] [INFO] [stderr] error: could not compile `res` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unused variable: `scanner` [INFO] [stdout] --> src/main.rs:317:15 [INFO] [stdout] | [INFO] [stdout] 317 | fn script<'a>(scanner: &'a mut Scanner) -> Result, String> { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scanner` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `vm` [INFO] [stdout] --> src/main.rs:337:14 [INFO] [stdout] | [INFO] [stdout] 337 | fn interpret(vm: &mut VM, source: &str) -> Result { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_vm` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `source` [INFO] [stdout] --> src/main.rs:327:17 [INFO] [stdout] | [INFO] [stdout] 327 | fn generate(source: &str) -> Result, String> { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_source` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `scanner` [INFO] [stdout] --> src/scanner/mod.rs:1433:20 [INFO] [stdout] | [INFO] [stdout] 1433 | fn escape_sequence(scanner: &Scanner, source: &str) -> Option { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scanner` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `source` [INFO] [stdout] --> src/scanner/mod.rs:1433:39 [INFO] [stdout] | [INFO] [stdout] 1433 | fn escape_sequence(scanner: &Scanner, source: &str) -> Option { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_source` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `scanner` [INFO] [stdout] --> src/scanner/mod.rs:1500:13 [INFO] [stdout] | [INFO] [stdout] 1500 | fn template(scanner: &Scanner, source: &str) -> Result, String> { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scanner` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `source` [INFO] [stdout] --> src/scanner/mod.rs:1500:32 [INFO] [stdout] | [INFO] [stdout] 1500 | fn template(scanner: &Scanner, source: &str) -> Result, String> { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_source` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `scanner` [INFO] [stdout] --> src/scanner/mod.rs:1575:5 [INFO] [stdout] | [INFO] [stdout] 1575 | scanner: &Scanner, [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scanner` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `source` [INFO] [stdout] --> src/scanner/mod.rs:1576:5 [INFO] [stdout] | [INFO] [stdout] 1576 | source: &str, [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_source` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `goal` [INFO] [stdout] --> src/scanner/mod.rs:1577:5 [INFO] [stdout] | [INFO] [stdout] 1577 | goal: ScanGoal, [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_goal` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `scanner` [INFO] [stdout] --> src/scanner/mod.rs:1582:5 [INFO] [stdout] | [INFO] [stdout] 1582 | scanner: &Scanner, [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scanner` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `source` [INFO] [stdout] --> src/scanner/mod.rs:1583:5 [INFO] [stdout] | [INFO] [stdout] 1583 | source: &str, [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_source` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `goal` [INFO] [stdout] --> src/scanner/mod.rs:1584:5 [INFO] [stdout] | [INFO] [stdout] 1584 | goal: ScanGoal, [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_goal` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0515]: cannot return value referencing temporary value [INFO] [stdout] --> src/main.rs:169:9 [INFO] [stdout] | [INFO] [stdout] 169 | / match self { [INFO] [stdout] 170 | | IdentifierReference::Identifier(id) => id.string_value(), [INFO] [stdout] 171 | | IdentifierReference::Yield => &scanner::JSString::from_str("yield"), [INFO] [stdout] 172 | | IdentifierReference::Await => &scanner::JSString::from_str("await"), [INFO] [stdout] | | ------------------------------------ temporary value created here [INFO] [stdout] 173 | | } [INFO] [stdout] | |_________^ returns a value referencing data owned by the current function [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0515]: cannot return value referencing temporary value [INFO] [stdout] --> src/main.rs:169:9 [INFO] [stdout] | [INFO] [stdout] 169 | / match self { [INFO] [stdout] 170 | | IdentifierReference::Identifier(id) => id.string_value(), [INFO] [stdout] 171 | | IdentifierReference::Yield => &scanner::JSString::from_str("yield"), [INFO] [stdout] | | ------------------------------------ temporary value created here [INFO] [stdout] 172 | | IdentifierReference::Await => &scanner::JSString::from_str("await"), [INFO] [stdout] 173 | | } [INFO] [stdout] | |_________^ returns a value referencing data owned by the current function [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0515`. [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "4911b3b27c6d28ef4d366283cd6d02c7fea5c8ac07a3f34a7ec7990dd929e76e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4911b3b27c6d28ef4d366283cd6d02c7fea5c8ac07a3f34a7ec7990dd929e76e", kill_on_drop: false }` [INFO] [stdout] 4911b3b27c6d28ef4d366283cd6d02c7fea5c8ac07a3f34a7ec7990dd929e76e