[INFO] fetching crate custom-elements 0.2.0...
[INFO] checking custom-elements-0.2.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate custom-elements 0.2.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate custom-elements 0.2.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate custom-elements 0.2.0
[INFO] finished tweaking crates.io crate custom-elements 0.2.0
[INFO] tweaked toml for crates.io crate custom-elements 0.2.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 16 packages
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 937da330aeb07cac2b01987c1c1592cc692804dac3f3fc474398efea439aac11
[INFO] running `Command { std: "docker" "start" "-a" "937da330aeb07cac2b01987c1c1592cc692804dac3f3fc474398efea439aac11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "937da330aeb07cac2b01987c1c1592cc692804dac3f3fc474398efea439aac11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "937da330aeb07cac2b01987c1c1592cc692804dac3f3fc474398efea439aac11", kill_on_drop: false }`
[INFO] [stdout] 937da330aeb07cac2b01987c1c1592cc692804dac3f3fc474398efea439aac11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22fc2c62f07ddf0ab3996682d764d21355576e5b47c4c6598a2e09af18599753
[INFO] running `Command { std: "docker" "start" "-a" "22fc2c62f07ddf0ab3996682d764d21355576e5b47c4c6598a2e09af18599753", kill_on_drop: false }`
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.92
[INFO] [stderr]    Compiling bumpalo v3.15.4
[INFO] [stderr]    Compiling wasm-bindgen v0.2.92
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.92
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.92
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.92
[INFO] [stderr]     Checking js-sys v0.3.69
[INFO] [stderr]     Checking web-sys v0.3.69
[INFO] [stderr]     Checking custom-elements v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `UnwrapThrowExt` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | use wasm_bindgen::prelude::*;
[INFO] [stdout]    |     ------------------------ the item `UnwrapThrowExt` is already imported here
[INFO] [stdout] 52 | use wasm_bindgen::UnwrapThrowExt;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `UnwrapThrowExt` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | use wasm_bindgen::prelude::*;
[INFO] [stdout]    |     ------------------------ the item `UnwrapThrowExt` is already imported here
[INFO] [stdout] 52 | use wasm_bindgen::UnwrapThrowExt;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `HtmlElementConstructor` should have an upper case name
[INFO] [stdout]    --> src/lib.rs:308:16
[INFO] [stdout]     |
[INFO] [stdout] 308 |     pub static HtmlElementConstructor: js_sys::Function;
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper case: `HTML_ELEMENT_CONSTRUCTOR`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `HtmlElementConstructor` should have an upper case name
[INFO] [stdout]    --> src/lib.rs:308:16
[INFO] [stdout]     |
[INFO] [stdout] 308 |     pub static HtmlElementConstructor: js_sys::Function;
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper case: `HTML_ELEMENT_CONSTRUCTOR`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.54s
[INFO] running `Command { std: "docker" "inspect" "22fc2c62f07ddf0ab3996682d764d21355576e5b47c4c6598a2e09af18599753", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22fc2c62f07ddf0ab3996682d764d21355576e5b47c4c6598a2e09af18599753", kill_on_drop: false }`
[INFO] [stdout] 22fc2c62f07ddf0ab3996682d764d21355576e5b47c4c6598a2e09af18599753
[INFO] checking custom-elements-0.2.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate custom-elements 0.2.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate custom-elements 0.2.0 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate custom-elements 0.2.0
[INFO] finished tweaking crates.io crate custom-elements 0.2.0
[INFO] tweaked toml for crates.io crate custom-elements 0.2.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 16 packages
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4577532f503faac9e30fe8cb399b176383b6e4649c9410b087095d36b306a293
[INFO] running `Command { std: "docker" "start" "-a" "4577532f503faac9e30fe8cb399b176383b6e4649c9410b087095d36b306a293", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4577532f503faac9e30fe8cb399b176383b6e4649c9410b087095d36b306a293", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4577532f503faac9e30fe8cb399b176383b6e4649c9410b087095d36b306a293", kill_on_drop: false }`
[INFO] [stdout] 4577532f503faac9e30fe8cb399b176383b6e4649c9410b087095d36b306a293
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 67f9b81969d054b089f3ee818a8dde0c8b14dda7dba27af6fa34afff9a056865
[INFO] running `Command { std: "docker" "start" "-a" "67f9b81969d054b089f3ee818a8dde0c8b14dda7dba27af6fa34afff9a056865", kill_on_drop: false }`
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.92
[INFO] [stderr]    Compiling bumpalo v3.15.4
[INFO] [stderr]    Compiling wasm-bindgen v0.2.92
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.92
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.92
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.92
[INFO] [stderr]     Checking js-sys v0.3.69
[INFO] [stderr]     Checking web-sys v0.3.69
[INFO] [stderr]     Checking custom-elements v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `UnwrapThrowExt` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | use wasm_bindgen::prelude::*;
[INFO] [stdout]    |     ------------------------ the item `UnwrapThrowExt` is already imported here
[INFO] [stdout] 52 | use wasm_bindgen::UnwrapThrowExt;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `UnwrapThrowExt` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | use wasm_bindgen::prelude::*;
[INFO] [stdout]    |     ------------------------ the item `UnwrapThrowExt` is already imported here
[INFO] [stdout] 52 | use wasm_bindgen::UnwrapThrowExt;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `HtmlElementConstructor` should have an upper case name
[INFO] [stdout]    --> src/lib.rs:308:16
[INFO] [stdout]     |
[INFO] [stdout] 308 |     pub static HtmlElementConstructor: js_sys::Function;
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper case: `HTML_ELEMENT_CONSTRUCTOR`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `HtmlElementConstructor` should have an upper case name
[INFO] [stdout]    --> src/lib.rs:308:16
[INFO] [stdout]     |
[INFO] [stdout] 308 |     pub static HtmlElementConstructor: js_sys::Function;
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper case: `HTML_ELEMENT_CONSTRUCTOR`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.57s
[INFO] running `Command { std: "docker" "inspect" "67f9b81969d054b089f3ee818a8dde0c8b14dda7dba27af6fa34afff9a056865", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67f9b81969d054b089f3ee818a8dde0c8b14dda7dba27af6fa34afff9a056865", kill_on_drop: false }`
[INFO] [stdout] 67f9b81969d054b089f3ee818a8dde0c8b14dda7dba27af6fa34afff9a056865