[INFO] crate Boa 0.3.0 is already in cache
[INFO] testing Boa-0.3.0 against 1.38.0 for beta-1.39-1
[INFO] extracting crate Boa 0.3.0 into work/builds/worker-0/source
[INFO] validating manifest of crates.io crate Boa 0.3.0 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate Boa 0.3.0
[INFO] finished tweaking crates.io crate Boa 0.3.0
[INFO] tweaked toml for crates.io crate Boa 0.3.0 written to work/builds/worker-0/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] c3a0f7b402c5a57deaae7deb23f906180a3a69f8e4bafb0e536be018a10ce19c
[INFO] running `"docker" "start" "-a" "c3a0f7b402c5a57deaae7deb23f906180a3a69f8e4bafb0e536be018a10ce19c"`
[INFO] [stderr]    Compiling gc v0.3.3
[INFO] [stderr]    Compiling gc_derive v0.3.2
[INFO] [stderr]    Compiling Boa v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `Finalize`, `Trace`
[INFO] [stderr]   --> src/lib/js/string.rs:10:17
[INFO] [stderr]    |
[INFO] [stderr] 10 | use gc_derive::{Finalize, Trace};
[INFO] [stderr]    |                 ^^^^^^^^  ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.60s
[INFO] running `"docker" "inspect" "c3a0f7b402c5a57deaae7deb23f906180a3a69f8e4bafb0e536be018a10ce19c"`
[INFO] running `"docker" "rm" "-f" "c3a0f7b402c5a57deaae7deb23f906180a3a69f8e4bafb0e536be018a10ce19c"`
[INFO] [stdout] c3a0f7b402c5a57deaae7deb23f906180a3a69f8e4bafb0e536be018a10ce19c
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 5a0792c20f065ce6dbc01970b18aa91109f54d19a9fc4bac893d936c5a8ed13c
[INFO] running `"docker" "start" "-a" "5a0792c20f065ce6dbc01970b18aa91109f54d19a9fc4bac893d936c5a8ed13c"`
[INFO] [stderr]    Compiling criterion v0.2.11
[INFO] [stderr]    Compiling Boa v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `Finalize`, `Trace`
[INFO] [stderr]   --> src/lib/js/string.rs:10:17
[INFO] [stderr]    |
[INFO] [stderr] 10 | use gc_derive::{Finalize, Trace};
[INFO] [stderr]    |                 ^^^^^^^^  ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ee`
[INFO] [stderr]    --> src/lib/js/array.rs:299:13
[INFO] [stderr]     |
[INFO] [stderr] 299 |         let ee = forward(&mut engine, "empty.concat(empty)");
[INFO] [stderr]     |             ^^ help: consider prefixing with an underscore: `_ee`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `en`
[INFO] [stderr]    --> src/lib/js/array.rs:302:13
[INFO] [stderr]     |
[INFO] [stderr] 302 |         let en = forward(&mut engine, "empty.concat(one)");
[INFO] [stderr]     |             ^^ help: consider prefixing with an underscore: `_en`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ne`
[INFO] [stderr]    --> src/lib/js/array.rs:305:13
[INFO] [stderr]     |
[INFO] [stderr] 305 |         let ne = forward(&mut engine, "one.concat(empty)");
[INFO] [stderr]     |             ^^ help: consider prefixing with an underscore: `_ne`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `nn`
[INFO] [stderr]    --> src/lib/js/array.rs:308:13
[INFO] [stderr]     |
[INFO] [stderr] 308 |         let nn = forward(&mut engine, "one.concat(one)");
[INFO] [stderr]     |             ^^ help: consider prefixing with an underscore: `_nn`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/lib/js/string.rs:547:13
[INFO] [stderr]     |
[INFO] [stderr] 547 |         let a = forward(&mut engine, "hello.concat(world, nice)");
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/lib/js/string.rs:548:13
[INFO] [stderr]     |
[INFO] [stderr] 548 |         let b = forward(&mut engine, "hello + world + nice");
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.34s
[INFO] running `"docker" "inspect" "5a0792c20f065ce6dbc01970b18aa91109f54d19a9fc4bac893d936c5a8ed13c"`
[INFO] running `"docker" "rm" "-f" "5a0792c20f065ce6dbc01970b18aa91109f54d19a9fc4bac893d936c5a8ed13c"`
[INFO] [stdout] 5a0792c20f065ce6dbc01970b18aa91109f54d19a9fc4bac893d936c5a8ed13c
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 649722c15026a1c714288f03ea1514743e02a9145bfbf43d2a9d1ea0d4ab13a2
[INFO] running `"docker" "start" "-a" "649722c15026a1c714288f03ea1514743e02a9145bfbf43d2a9d1ea0d4ab13a2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.24s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/boa-91669fd3002d761f
[INFO] [stdout] 
[INFO] [stdout] running 28 tests
[INFO] [stdout] test js::object::test::is_property_key_test ... ok
[INFO] [stdout] test js::string::tests::check_string_constructor_is_function ... ok
[INFO] [stdout] test js::value::tests::check_integer_is_true ... ok
[INFO] [stdout] test js::value::tests::check_number_is_true ... ok
[INFO] [stdout] test js::value::tests::check_get_set_field ... ok
[INFO] [stdout] test js::value::tests::check_string_to_value ... ok
[INFO] [stdout] test js::value::tests::check_undefined ... ok
[INFO] [stdout] test syntax::lexer::tests::check_decrement_advances_lexer_2_places ... ok
[INFO] [stdout] test js::value::tests::check_is_object ... ok
[INFO] [stdout] test syntax::lexer::tests::check_positions ... ok
[INFO] [stdout] test syntax::lexer::tests::check_keywords ... ok
[INFO] [stdout] test syntax::lexer::tests::check_string ... ok
[INFO] [stdout] test syntax::lexer::tests::test_number_followed_by_dot ... ok
[INFO] [stdout] test syntax::lexer::tests::check_variable_definition_tokens ... ok
[INFO] [stdout] test syntax::lexer::tests::numbers ... ok
[INFO] [stdout] test syntax::lexer::tests::check_punctuators ... ok
[INFO] [stdout] test syntax::lexer::tests::test_single_number_without_semicolon ... ok
[INFO] [stdout] test syntax::parser::tests::check_string ... ok
[INFO] [stdout] test syntax::parser::tests::check_array ... ok
[INFO] [stdout] test syntax::parser::tests::check_declarations ... ok
[INFO] [stdout] test syntax::parser::tests::check_operations ... ok
[INFO] [stdout] test js::array::tests::join ... ok
[INFO] [stdout] test js::string::tests::starts_with ... ok
[INFO] [stdout] test js::string::tests::ends_with ... ok
[INFO] [stdout] test js::string::tests::concat ... ok
[INFO] [stdout] test js::string::tests::repeat ... ok
[INFO] [stdout] test js::array::tests::concat ... ok
[INFO] [stdout] test js::string::tests::concat ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 28 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/bin-03282d02e21d2b07
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests boa
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib/syntax/lexer.rs - syntax::lexer::Lexer::new (line 122) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "649722c15026a1c714288f03ea1514743e02a9145bfbf43d2a9d1ea0d4ab13a2"`
[INFO] running `"docker" "rm" "-f" "649722c15026a1c714288f03ea1514743e02a9145bfbf43d2a9d1ea0d4ab13a2"`
[INFO] [stdout] 649722c15026a1c714288f03ea1514743e02a9145bfbf43d2a9d1ea0d4ab13a2