[INFO] fetching crate libp2p-wasm-ext 0.40.0...
[INFO] checking libp2p-wasm-ext-0.40.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate libp2p-wasm-ext 0.40.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate libp2p-wasm-ext 0.40.0 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 libp2p-wasm-ext 0.40.0
[INFO] finished tweaking crates.io crate libp2p-wasm-ext 0.40.0
[INFO] tweaked toml for crates.io crate libp2p-wasm-ext 0.40.0 written to /workspace/builds/worker-0-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 124 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding libp2p-core v0.40.1 (latest: v0.41.2)
[INFO] [stderr]       Adding redox_syscall v0.4.1 (latest: v0.5.1)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding unsigned-varint v0.7.2 (latest: v0.8.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.4)
[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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rw-stream-sink v0.4.0
[INFO] [stderr]   Downloaded quick-protobuf v0.8.1
[INFO] [stderr]   Downloaded libp2p-identity v0.2.8
[INFO] [stderr]   Downloaded multiaddr v0.18.1
[INFO] [stderr]   Downloaded multihash v0.19.1
[INFO] [stderr]   Downloaded multistream-select v0.13.0
[INFO] [stderr]   Downloaded libp2p-core v0.40.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 49a6f8971d818ccf5b4267cbd68613e30c377764d40be6798b315ea6ec3f8fc2
[INFO] running `Command { std: "docker" "start" "-a" "49a6f8971d818ccf5b4267cbd68613e30c377764d40be6798b315ea6ec3f8fc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49a6f8971d818ccf5b4267cbd68613e30c377764d40be6798b315ea6ec3f8fc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49a6f8971d818ccf5b4267cbd68613e30c377764d40be6798b315ea6ec3f8fc2", kill_on_drop: false }`
[INFO] [stdout] 49a6f8971d818ccf5b4267cbd68613e30c377764d40be6798b315ea6ec3f8fc2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] a84b81b3ae5d8f360bc6fc6a4b09ba31a535f680df658600cb660a9f507f8f7c
[INFO] running `Command { std: "docker" "start" "-a" "a84b81b3ae5d8f360bc6fc6a4b09ba31a535f680df658600cb660a9f507f8f7c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling semver v1.0.22
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.92
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling platforms v3.4.0
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking cpufeatures v0.2.12
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling bumpalo v3.15.4
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling data-encoding v2.5.0
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking unsigned-varint v0.7.2
[INFO] [stderr]     Checking zeroize v1.7.0
[INFO] [stderr]     Checking signature v2.2.0
[INFO] [stderr]     Checking core2 v0.4.0
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.92
[INFO] [stderr]     Checking ed25519 v2.2.3
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]     Checking quick-protobuf v0.8.1
[INFO] [stderr]     Checking multihash v0.19.1
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking bs58 v0.5.1
[INFO] [stderr]     Checking base-x v0.2.11
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]     Checking arrayref v0.3.7
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking futures-timer v3.0.3
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking send_wrapper v0.6.0
[INFO] [stderr]    Compiling curve25519-dalek v4.1.2
[INFO] [stderr]    Compiling data-encoding-macro-internal v0.1.12
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking data-encoding-macro v0.1.14
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking multibase v0.9.1
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[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking hkdf v0.12.4
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.92
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling curve25519-dalek-derive v0.1.1
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.92
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.92
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking pin-project v1.1.5
[INFO] [stderr]     Checking ed25519-dalek v2.1.1
[INFO] [stderr]     Checking js-sys v0.3.69
[INFO] [stderr]     Checking libp2p-identity v0.2.8
[INFO] [stderr]     Checking multiaddr v0.18.1
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking multistream-select v0.13.0
[INFO] [stderr]     Checking rw-stream-sink v0.4.0
[INFO] [stderr]     Checking libp2p-core v0.40.1
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.42
[INFO] [stderr]     Checking libp2p-wasm-ext v0.40.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `JsCast` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:45:32
[INFO] [stdout]    |
[INFO] [stdout] 45 | use wasm_bindgen::{prelude::*, JsCast};
[INFO] [stdout]    |                    ----------  ^^^^^^
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    the item `JsCast` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `JsCast` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:45:32
[INFO] [stdout]    |
[INFO] [stdout] 45 | use wasm_bindgen::{prelude::*, JsCast};
[INFO] [stdout]    |                    ----------  ^^^^^^
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    the item `JsCast` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 26.10s
[INFO] running `Command { std: "docker" "inspect" "a84b81b3ae5d8f360bc6fc6a4b09ba31a535f680df658600cb660a9f507f8f7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a84b81b3ae5d8f360bc6fc6a4b09ba31a535f680df658600cb660a9f507f8f7c", kill_on_drop: false }`
[INFO] [stdout] a84b81b3ae5d8f360bc6fc6a4b09ba31a535f680df658600cb660a9f507f8f7c