[INFO] fetching crate boa_gc 0.19.0...
[INFO] checking boa_gc-0.19.0 against master#f167efad2f51088d86180ee89177b3d7c9e7c2f5 for pr-129543
[INFO] extracting crate boa_gc 0.19.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate boa_gc 0.19.0 on toolchain f167efad2f51088d86180ee89177b3d7c9e7c2f5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate boa_gc 0.19.0
[INFO] finished tweaking crates.io crate boa_gc 0.19.0
[INFO] tweaked toml for crates.io crate boa_gc 0.19.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 27 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b200f52a0bcc64fb6676ae807f841e9bb77b9176677b8ba2dcd59651472b07a9
[INFO] running `Command { std: "docker" "start" "-a" "b200f52a0bcc64fb6676ae807f841e9bb77b9176677b8ba2dcd59651472b07a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b200f52a0bcc64fb6676ae807f841e9bb77b9176677b8ba2dcd59651472b07a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b200f52a0bcc64fb6676ae807f841e9bb77b9176677b8ba2dcd59651472b07a9", kill_on_drop: false }`
[INFO] [stdout] b200f52a0bcc64fb6676ae807f841e9bb77b9176677b8ba2dcd59651472b07a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e51306586fdfc03d5f1608cdf4f109c9e4f4d10b59c6606b178a79e7abefd6d8
[INFO] running `Command { std: "docker" "start" "-a" "e51306586fdfc03d5f1608cdf4f109c9e4f4d10b59c6606b178a79e7abefd6d8", kill_on_drop: false }`
[INFO] [stderr]     Checking boa_profiler v0.19.0
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]     Checking ahash v0.8.11
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]    Compiling synstructure v0.13.1
[INFO] [stderr]    Compiling boa_macros v0.19.0
[INFO] [stderr]     Checking boa_gc v0.19.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/internals/vtable.rs:51:19
[INFO] [stdout]    |
[INFO] [stdout] 51 |             size: std::mem::size_of::<GcBox<T>>(),
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-W unused-qualifications`
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 51 -             size: std::mem::size_of::<GcBox<T>>(),
[INFO] [stdout] 51 +             size: size_of::<GcBox<T>>(),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]    --> src/lib.rs:134:28
[INFO] [stdout]     |
[INFO] [stdout] 134 |         let element_size = mem::size_of_val::<GcBox<T>>(&value);
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 134 -         let element_size = mem::size_of_val::<GcBox<T>>(&value);
[INFO] [stdout] 134 +         let element_size = size_of_val::<GcBox<T>>(&value);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]    --> src/lib.rs:154:28
[INFO] [stdout]     |
[INFO] [stdout] 154 |         let element_size = mem::size_of_val::<EphemeronBox<K, V>>(&value);
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 154 -         let element_size = mem::size_of_val::<EphemeronBox<K, V>>(&value);
[INFO] [stdout] 154 +         let element_size = size_of_val::<EphemeronBox<K, V>>(&value);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]    --> src/lib.rs:529:41
[INFO] [stdout]     |
[INFO] [stdout] 529 |                 let unallocated_bytes = mem::size_of_val(&*unmarked_eph);
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 529 -                 let unallocated_bytes = mem::size_of_val(&*unmarked_eph);
[INFO] [stdout] 529 +                 let unallocated_bytes = size_of_val(&*unmarked_eph);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/internals/vtable.rs:51:19
[INFO] [stdout]    |
[INFO] [stdout] 51 |             size: std::mem::size_of::<GcBox<T>>(),
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-W unused-qualifications`
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 51 -             size: std::mem::size_of::<GcBox<T>>(),
[INFO] [stdout] 51 +             size: size_of::<GcBox<T>>(),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]    --> src/lib.rs:134:28
[INFO] [stdout]     |
[INFO] [stdout] 134 |         let element_size = mem::size_of_val::<GcBox<T>>(&value);
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 134 -         let element_size = mem::size_of_val::<GcBox<T>>(&value);
[INFO] [stdout] 134 +         let element_size = size_of_val::<GcBox<T>>(&value);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]    --> src/lib.rs:154:28
[INFO] [stdout]     |
[INFO] [stdout] 154 |         let element_size = mem::size_of_val::<EphemeronBox<K, V>>(&value);
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 154 -         let element_size = mem::size_of_val::<EphemeronBox<K, V>>(&value);
[INFO] [stdout] 154 +         let element_size = size_of_val::<EphemeronBox<K, V>>(&value);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]    --> src/lib.rs:529:41
[INFO] [stdout]     |
[INFO] [stdout] 529 |                 let unallocated_bytes = mem::size_of_val(&*unmarked_eph);
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 529 -                 let unallocated_bytes = mem::size_of_val(&*unmarked_eph);
[INFO] [stdout] 529 +                 let unallocated_bytes = size_of_val(&*unmarked_eph);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/test/allocation.rs:46:29
[INFO] [stdout]    |
[INFO] [stdout] 46 |         const SIZE: usize = std::mem::size_of::<GcBox<S>>();
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 46 -         const SIZE: usize = std::mem::size_of::<GcBox<S>>();
[INFO] [stdout] 46 +         const SIZE: usize = size_of::<GcBox<S>>();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]    --> src/test/weak.rs:157:25
[INFO] [stdout]     |
[INFO] [stdout] 157 |         let root_size = std::mem::size_of::<GcBox<InnerCell>>();
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 157 -         let root_size = std::mem::size_of::<GcBox<InnerCell>>();
[INFO] [stdout] 157 +         let root_size = size_of::<GcBox<InnerCell>>();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]    --> src/test/weak.rs:186:25
[INFO] [stdout]     |
[INFO] [stdout] 186 |         let root_size = std::mem::size_of::<GcBox<GcRefCell<Option<Ephemeron<u8, TestCell>>>>>();
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 186 -         let root_size = std::mem::size_of::<GcBox<GcRefCell<Option<Ephemeron<u8, TestCell>>>>>();
[INFO] [stdout] 186 +         let root_size = size_of::<GcBox<GcRefCell<Option<Ephemeron<u8, TestCell>>>>>();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.22s
[INFO] running `Command { std: "docker" "inspect" "e51306586fdfc03d5f1608cdf4f109c9e4f4d10b59c6606b178a79e7abefd6d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e51306586fdfc03d5f1608cdf4f109c9e4f4d10b59c6606b178a79e7abefd6d8", kill_on_drop: false }`
[INFO] [stdout] e51306586fdfc03d5f1608cdf4f109c9e4f4d10b59c6606b178a79e7abefd6d8