[INFO] fetching crate Boa 0.3.0...
[INFO] checking Boa-0.3.0 against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] extracting crate Boa 0.3.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate Boa 0.3.0 on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "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 /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "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" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "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] cbb4ce7ec5b7159cff7535c1a292076767f2574249efa4fabe80a2aa28c7e4ea
[INFO] running `"docker" "start" "-a" "cbb4ce7ec5b7159cff7535c1a292076767f2574249efa4fabe80a2aa28c7e4ea"`
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.51
[INFO] [stderr]    Compiling bumpalo v2.6.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.51
[INFO] [stderr]     Checking gc v0.3.3
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking tinytemplate v1.0.2
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]    Compiling gc_derive v0.3.2
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.51
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.51
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.51
[INFO] [stderr]     Checking 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]     Checking criterion v0.2.11
[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 25.58s
[INFO] running `"docker" "inspect" "cbb4ce7ec5b7159cff7535c1a292076767f2574249efa4fabe80a2aa28c7e4ea"`
[INFO] running `"docker" "rm" "-f" "cbb4ce7ec5b7159cff7535c1a292076767f2574249efa4fabe80a2aa28c7e4ea"`
[INFO] [stdout] cbb4ce7ec5b7159cff7535c1a292076767f2574249efa4fabe80a2aa28c7e4ea