[INFO] fetching crate draco 0.1.2...
[INFO] checking draco-0.1.2 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] extracting crate draco 0.1.2 into /workspace/builds/worker-78/source
[INFO] validating manifest of crates.io crate draco 0.1.2 on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate draco 0.1.2
[INFO] finished tweaking crates.io crate draco 0.1.2
[INFO] tweaked toml for crates.io crate draco 0.1.2 written to /workspace/builds/worker-78/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "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-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 64a86f652eb36e0d4004a18b63515dbedf4c1203a52e9f20ab58dbab4203c352
[INFO] running `Command { std: "docker" "start" "-a" "64a86f652eb36e0d4004a18b63515dbedf4c1203a52e9f20ab58dbab4203c352", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64a86f652eb36e0d4004a18b63515dbedf4c1203a52e9f20ab58dbab4203c352", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64a86f652eb36e0d4004a18b63515dbedf4c1203a52e9f20ab58dbab4203c352", kill_on_drop: false }`
[INFO] [stdout] 64a86f652eb36e0d4004a18b63515dbedf4c1203a52e9f20ab58dbab4203c352
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] adeb943f8073671757daac4f8cdbb94c4081416da3cb73ea3c9a106ade6d03f0
[INFO] running `Command { std: "docker" "start" "-a" "adeb943f8073671757daac4f8cdbb94c4081416da3cb73ea3c9a106ade6d03f0", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr] note: Switching to Edition 2021 will enable the use of the version 2 feature resolver in Cargo.
[INFO] [stderr] This may cause some dependencies to be built with fewer features enabled than previously.
[INFO] [stderr] More information about the resolver changes may be found at https://doc.rust-lang.org/nightly/edition-guide/rust-2021/default-cargo-resolver.html
[INFO] [stderr] When building the following dependencies, the given features will no longer be used:
[INFO] [stderr] 
[INFO] [stderr]   web-sys v0.3.53: MessageEvent, Worker
[INFO] [stderr] 
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.76
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling bumpalo v3.7.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.76
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.76
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.76
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.76
[INFO] [stderr]     Checking js-sys v0.3.53
[INFO] [stderr]     Checking web-sys v0.3.53
[INFO] [stderr]     Checking wasm-bindgen-futures v0.3.27
[INFO] [stderr]     Checking draco v0.1.2 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/router.rs (1 fix)
[INFO] [stderr]        Fixed src/mailbox.rs (2 fixes)
[INFO] [stderr]        Fixed src/fetch.rs (2 fixes)
[INFO] [stderr]        Fixed src/element.rs (4 fixes)
[INFO] [stderr]        Fixed src/subscription.rs (4 fixes)
[INFO] [stdout] warning: unused `Promise` that must be used
[INFO] [stdout]   --> src/mailbox.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         future_to_promise(future);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Promise` that must be used
[INFO] [stdout]   --> src/mailbox.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         future_to_promise(future);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Migrating examples/svg_clock.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/local_storage.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/mouse_tracker.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/form.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/hello_world.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/router.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/counter.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/fetch.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating benches/jfb.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/counters.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/jfb.rs from 2018 edition to 2021
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.11s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking web-sys v0.3.53
[INFO] [stderr]     Checking draco v0.1.2 (/tmp/fixit)
[INFO] [stdout] warning: unused `Promise` that must be used
[INFO] [stdout]   --> src/mailbox.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         future_to_promise(future);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Promise` that must be used
[INFO] [stdout]   --> src/mailbox.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         future_to_promise(future);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.03s
[INFO] running `Command { std: "docker" "inspect" "adeb943f8073671757daac4f8cdbb94c4081416da3cb73ea3c9a106ade6d03f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adeb943f8073671757daac4f8cdbb94c4081416da3cb73ea3c9a106ade6d03f0", kill_on_drop: false }`
[INFO] [stdout] adeb943f8073671757daac4f8cdbb94c4081416da3cb73ea3c9a106ade6d03f0