[INFO] fetching crate libp2p-dns 0.41.1...
[INFO] checking libp2p-dns-0.41.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate libp2p-dns 0.41.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate libp2p-dns 0.41.1 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-dns 0.41.1
[INFO] finished tweaking crates.io crate libp2p-dns 0.41.1
[INFO] tweaked toml for crates.io crate libp2p-dns 0.41.1 written to /workspace/builds/worker-2-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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 223 packages
[INFO] [stderr]       Adding async-channel v1.9.0 (latest: v2.2.0)
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[INFO] [stderr]       Adding quick-error v1.2.3 (latest: v2.0.1)
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[INFO] [stderr]       Adding regex-syntax v0.6.29 (latest: v0.8.3)
[INFO] [stderr]       Adding rustix v0.37.27 (latest: v0.38.32)
[INFO] [stderr]       Adding socket2 v0.4.10 (latest: v0.5.6)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding unsigned-varint v0.7.2 (latest: v0.8.0)
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[INFO] [stderr]       Adding windows-sys v0.48.0 (latest: v0.52.0)
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[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] [stderr]       Adding winreg v0.50.0 (latest: v0.52.0)
[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 multihash v0.19.1
[INFO] [stderr]   Downloaded multistream-select v0.13.0
[INFO] [stderr]   Downloaded rw-stream-sink v0.4.0
[INFO] [stderr]   Downloaded data-encoding-macro v0.1.14
[INFO] [stderr]   Downloaded libp2p-identity v0.2.8
[INFO] [stderr]   Downloaded data-encoding-macro-internal v0.1.12
[INFO] [stderr]   Downloaded unsigned-varint v0.8.0
[INFO] [stderr]   Downloaded unsigned-varint v0.7.2
[INFO] [stderr]   Downloaded async-std-resolver v0.24.0
[INFO] [stderr]   Downloaded hickory-resolver v0.24.0
[INFO] [stderr]   Downloaded hickory-proto v0.24.0
[INFO] [stderr]   Downloaded ipconfig v0.3.2
[INFO] [stderr]   Downloaded multiaddr v0.18.1
[INFO] [stderr]   Downloaded libp2p-core v0.41.2
[INFO] [stderr]   Downloaded quick-protobuf v0.8.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] a9659d7ac2ad6667d668941cb1bde84e026aaade74b6654dcca8741f160d925b
[INFO] running `Command { std: "docker" "start" "-a" "a9659d7ac2ad6667d668941cb1bde84e026aaade74b6654dcca8741f160d925b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9659d7ac2ad6667d668941cb1bde84e026aaade74b6654dcca8741f160d925b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9659d7ac2ad6667d668941cb1bde84e026aaade74b6654dcca8741f160d925b", kill_on_drop: false }`
[INFO] [stdout] a9659d7ac2ad6667d668941cb1bde84e026aaade74b6654dcca8741f160d925b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 615e0306418c9d345d6ad3fc0364074ac8c67e7f2dc8608b0fe3a14e590facdb
[INFO] running `Command { std: "docker" "start" "-a" "615e0306418c9d345d6ad3fc0364074ac8c67e7f2dc8608b0fe3a14e590facdb", kill_on_drop: false }`
[INFO] [stderr]     Checking pin-project-lite v0.2.14
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]     Checking parking v2.2.0
[INFO] [stderr]     Checking value-bag v1.8.1
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking tracing-core v0.1.32
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[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]    Compiling curve25519-dalek v4.1.2
[INFO] [stderr]     Checking signature v2.2.0
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[INFO] [stderr]     Checking event-listener-strategy v0.4.0
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[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]     Checking unsigned-varint v0.7.2
[INFO] [stderr]    Compiling rustix v0.38.32
[INFO] [stderr]     Checking core2 v0.4.0
[INFO] [stderr]     Checking ed25519 v2.2.3
[INFO] [stderr]     Checking futures-lite v2.3.0
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[INFO] [stderr]    Compiling io-lifetimes v1.0.11
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[INFO] [stderr]     Checking bitflags v2.5.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking linux-raw-sys v0.4.13
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[INFO] [stderr]     Checking quick-protobuf v0.8.1
[INFO] [stderr]    Compiling polling v2.8.0
[INFO] [stderr]    Compiling rustix v0.37.27
[INFO] [stderr]     Checking event-listener v2.5.3
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[INFO] [stderr]     Checking parking_lot v0.12.1
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[INFO] [stderr]     Checking crypto-common v0.1.6
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[INFO] [stderr]    Compiling async-io v1.13.0
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[INFO] [stderr]     Checking matchers v0.1.0
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling curve25519-dalek-derive v0.1.1
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]    Compiling enum-as-inner v0.6.0
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking pin-project v1.1.5
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking polling v3.6.0
[INFO] [stderr]     Checking blocking v1.5.1
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking async-io v2.3.2
[INFO] [stderr]     Checking ed25519-dalek v2.1.1
[INFO] [stderr]     Checking libp2p-identity v0.2.8
[INFO] [stderr]     Checking multiaddr v0.18.1
[INFO] [stderr]     Checking async-global-executor v2.4.1
[INFO] [stderr]     Checking async-std v1.12.0
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking hickory-proto v0.24.0
[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 v0.41.2
[INFO] [stderr]     Checking hickory-resolver v0.24.0
[INFO] [stderr]     Checking libp2p-dns v0.41.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]    --> src/lib.rs:160:5
[INFO] [stdout]     |
[INFO] [stdout] 160 |     convert::TryFrom,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout]     = note: the item `TryFrom` is already defined here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]    --> src/lib.rs:160:5
[INFO] [stdout]     |
[INFO] [stdout] 160 |     convert::TryFrom,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout]     = note: the item `TryFrom` is already defined 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 18.81s
[INFO] running `Command { std: "docker" "inspect" "615e0306418c9d345d6ad3fc0364074ac8c67e7f2dc8608b0fe3a14e590facdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "615e0306418c9d345d6ad3fc0364074ac8c67e7f2dc8608b0fe3a14e590facdb", kill_on_drop: false }`
[INFO] [stdout] 615e0306418c9d345d6ad3fc0364074ac8c67e7f2dc8608b0fe3a14e590facdb
[INFO] checking libp2p-dns-0.41.1 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate libp2p-dns 0.41.1 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate libp2p-dns 0.41.1 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libp2p-dns 0.41.1
[INFO] finished tweaking crates.io crate libp2p-dns 0.41.1
[INFO] tweaked toml for crates.io crate libp2p-dns 0.41.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 249bedce2ef181e6796c4f800b3b20b94d4b9fbf41e152b3f8e2d30c89ef9c3b
[INFO] running `Command { std: "docker" "start" "-a" "249bedce2ef181e6796c4f800b3b20b94d4b9fbf41e152b3f8e2d30c89ef9c3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "249bedce2ef181e6796c4f800b3b20b94d4b9fbf41e152b3f8e2d30c89ef9c3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "249bedce2ef181e6796c4f800b3b20b94d4b9fbf41e152b3f8e2d30c89ef9c3b", kill_on_drop: false }`
[INFO] [stdout] 249bedce2ef181e6796c4f800b3b20b94d4b9fbf41e152b3f8e2d30c89ef9c3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e9519c7145e7acfab3a91801ed3167cc78cb750b1aae99dd2319c9983b72841
[INFO] running `Command { std: "docker" "start" "-a" "2e9519c7145e7acfab3a91801ed3167cc78cb750b1aae99dd2319c9983b72841", kill_on_drop: false }`
[INFO] [stderr]     Checking pin-project-lite v0.2.14
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[INFO] [stderr]     Checking multiaddr v0.18.1
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[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]    --> src/lib.rs:160:5
[INFO] [stdout]     |
[INFO] [stdout] 160 |     convert::TryFrom,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout]     = note: the item `TryFrom` is already defined here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]    --> src/lib.rs:160:5
[INFO] [stdout]     |
[INFO] [stdout] 160 |     convert::TryFrom,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout]     = note: the item `TryFrom` is already defined 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 14.76s
[INFO] running `Command { std: "docker" "inspect" "2e9519c7145e7acfab3a91801ed3167cc78cb750b1aae99dd2319c9983b72841", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e9519c7145e7acfab3a91801ed3167cc78cb750b1aae99dd2319c9983b72841", kill_on_drop: false }`
[INFO] [stdout] 2e9519c7145e7acfab3a91801ed3167cc78cb750b1aae99dd2319c9983b72841