[INFO] fetching crate httproxide-h3 0.0.0...
[INFO] checking httproxide-h3-0.0.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate httproxide-h3 0.0.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate httproxide-h3 0.0.0 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 httproxide-h3 0.0.0
[INFO] finished tweaking crates.io crate httproxide-h3 0.0.0
[INFO] tweaked toml for crates.io crate httproxide-h3 0.0.0 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 68 packages
[INFO] [stderr]       Adding fastrand v1.9.0 (latest: v2.0.2)
[INFO] [stderr]       Adding http v0.2.12 (latest: v1.1.0)
[INFO] [stderr]       Adding linux-raw-sys v0.4.13 (latest: v0.6.4)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding quick-error v1.2.3 (latest: v2.0.1)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[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 assert_matches v1.5.0
[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] 0dc513a34fb195a4b4abfb54bba8f8bdd33d4efb86a428393e460817491bdf79
[INFO] running `Command { std: "docker" "start" "-a" "0dc513a34fb195a4b4abfb54bba8f8bdd33d4efb86a428393e460817491bdf79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0dc513a34fb195a4b4abfb54bba8f8bdd33d4efb86a428393e460817491bdf79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dc513a34fb195a4b4abfb54bba8f8bdd33d4efb86a428393e460817491bdf79", kill_on_drop: false }`
[INFO] [stdout] 0dc513a34fb195a4b4abfb54bba8f8bdd33d4efb86a428393e460817491bdf79
[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] 2c592f2e747230994bc4eab298645f88118f6fceb00ffe4ae63b81bf17217eb5
[INFO] running `Command { std: "docker" "start" "-a" "2c592f2e747230994bc4eab298645f88118f6fceb00ffe4ae63b81bf17217eb5", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]    Compiling rustix v0.38.32
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]     Checking linux-raw-sys v0.4.13
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking fastrand v2.0.2
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]     Checking unarray v0.1.4
[INFO] [stderr]     Checking assert_matches v1.5.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking tempfile v3.10.1
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking proptest v1.4.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking httproxide-h3 v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `IntoIterator` is imported redundantly
[INFO] [stdout]  --> src/proto/headers.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     iter::{IntoIterator, Iterator},
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `IntoIterator` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/proto/headers.rs:4:26
[INFO] [stdout]   |
[INFO] [stdout] 4 |     iter::{IntoIterator, Iterator},
[INFO] [stdout]   |                          ^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Decoder`, `Encoder`, `ack_header`, `dynamic::Error as DynamicTableError`, `stream_canceled`
[INFO] [stdout]  --> src/qpack/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |         ack_header, decode_stateless, stream_canceled, Decoded, Decoder, Error as DecoderError,
[INFO] [stdout]   |         ^^^^^^^^^^                    ^^^^^^^^^^^^^^^           ^^^^^^^
[INFO] [stdout] 4 |     },
[INFO] [stdout] 5 |     dynamic::Error as DynamicTableError,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 6 |     encoder::{encode_stateless, Encoder, Error as EncoderError},
[INFO] [stdout]   |                                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `DecodeIter`
[INFO] [stdout]   --> src/qpack/prefix_string/mod.rs:12:14
[INFO] [stdout]    |
[INFO] [stdout] 12 |     decode::{DecodeIter, Error as HuffmanDecodingError, HpackStringDecode},
[INFO] [stdout]    |              ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Bytes` is imported redundantly
[INFO] [stdout]    --> src/buf.rs:165:9
[INFO] [stdout]     |
[INFO] [stdout] 164 |     use super::*;
[INFO] [stdout]     |         -------- the item `Bytes` is already imported here
[INFO] [stdout] 165 |     use bytes::Bytes;
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `tokio` is imported redundantly
[INFO] [stdout]    --> src/frame.rs:266:9
[INFO] [stdout]     |
[INFO] [stdout] 266 |     use tokio;
[INFO] [stdout]     |         ^^^^^ the item `tokio` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `IntoIterator` is imported redundantly
[INFO] [stdout]  --> src/proto/headers.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     iter::{IntoIterator, Iterator},
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `IntoIterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/proto/headers.rs:4:26
[INFO] [stdout]   |
[INFO] [stdout] 4 |     iter::{IntoIterator, Iterator},
[INFO] [stdout]   |                          ^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ack_header`, `dynamic::Error as DynamicTableError`, `stream_canceled`
[INFO] [stdout]  --> src/qpack/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |         ack_header, decode_stateless, stream_canceled, Decoded, Decoder, Error as DecoderError,
[INFO] [stdout]   |         ^^^^^^^^^^                    ^^^^^^^^^^^^^^^
[INFO] [stdout] 4 |     },
[INFO] [stdout] 5 |     dynamic::Error as DynamicTableError,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `StaticTable` is imported redundantly
[INFO] [stdout]    --> src/qpack/dynamic.rs:537:24
[INFO] [stdout]     |
[INFO] [stdout] 536 |     use super::*;
[INFO] [stdout]     |         -------- the item `StaticTable` is already imported here
[INFO] [stdout] 537 |     use crate::qpack::{static_::StaticTable, tests::helpers::build_table};
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `DecodeIter`
[INFO] [stdout]   --> src/qpack/prefix_string/mod.rs:12:14
[INFO] [stdout]    |
[INFO] [stdout] 12 |     decode::{DecodeIter, Error as HuffmanDecodingError, HpackStringDecode},
[INFO] [stdout]    |              ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/stream.rs:167:10
[INFO] [stdout]     |
[INFO] [stdout] 167 |     Push(u64, FrameStream<S, B>),
[INFO] [stdout]     |     ---- ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 167 |     Push((), FrameStream<S, B>),
[INFO] [stdout]     |          ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/stream.rs:167:10
[INFO] [stdout]     |
[INFO] [stdout] 167 |     Push(u64, FrameStream<S, B>),
[INFO] [stdout]     |     ---- ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 167 |     Push((), FrameStream<S, B>),
[INFO] [stdout]     |          ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.65s
[INFO] running `Command { std: "docker" "inspect" "2c592f2e747230994bc4eab298645f88118f6fceb00ffe4ae63b81bf17217eb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c592f2e747230994bc4eab298645f88118f6fceb00ffe4ae63b81bf17217eb5", kill_on_drop: false }`
[INFO] [stdout] 2c592f2e747230994bc4eab298645f88118f6fceb00ffe4ae63b81bf17217eb5