[INFO] fetching crate libp2p-websocket 0.43.0...
[INFO] checking libp2p-websocket-0.43.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate libp2p-websocket 0.43.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate libp2p-websocket 0.43.0 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-websocket 0.43.0
[INFO] finished tweaking crates.io crate libp2p-websocket 0.43.0
[INFO] tweaked toml for crates.io crate libp2p-websocket 0.43.0 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
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[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 }`
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[INFO] [stderr]   Downloaded soketto v0.7.1
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[INFO] [stderr]   Downloaded async-std-resolver v0.24.0
[INFO] [stderr]   Downloaded libp2p-dns v0.41.1
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[INFO] [stderr]   Downloaded libp2p-tcp v0.41.0
[INFO] [stderr]   Downloaded pem v3.0.3
[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] a580b5086275161a4bb7c8c20b12b44ef953daa047005d828b9bbc68bf0a0213
[INFO] running `Command { std: "docker" "start" "-a" "a580b5086275161a4bb7c8c20b12b44ef953daa047005d828b9bbc68bf0a0213", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a580b5086275161a4bb7c8c20b12b44ef953daa047005d828b9bbc68bf0a0213", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a580b5086275161a4bb7c8c20b12b44ef953daa047005d828b9bbc68bf0a0213", kill_on_drop: false }`
[INFO] [stdout] a580b5086275161a4bb7c8c20b12b44ef953daa047005d828b9bbc68bf0a0213
[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] 9fa7559324dcd86a1e96a117ec1b0115773f95585bd41c18009faa8009f8859a
[INFO] running `Command { std: "docker" "start" "-a" "9fa7559324dcd86a1e96a117ec1b0115773f95585bd41c18009faa8009f8859a", kill_on_drop: false }`
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[INFO] [stderr]     Checking netlink-sys v0.8.6
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[INFO] [stderr]     Checking multistream-select v0.13.0
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[INFO] [stderr]     Checking libp2p-core v0.41.2
[INFO] [stderr]     Checking rtnetlink v0.10.1
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[INFO] [stderr]     Checking libp2p-tcp v0.41.0
[INFO] [stderr]     Checking libp2p-websocket v0.43.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `TryInto` is imported redundantly
[INFO] [stdout]   --> src/framed.rs:37:11
[INFO] [stdout]    |
[INFO] [stdout] 37 | use std::{convert::TryInto, fmt, io, mem, pin::Pin, task::Context, task::Poll};
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `TryInto` 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/tls.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use std::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] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking hickory-resolver v0.24.0
[INFO] [stderr]     Checking async-std-resolver v0.24.0
[INFO] [stderr]     Checking libp2p-dns v0.41.1
[INFO] [stdout] warning: the item `TryInto` is imported redundantly
[INFO] [stdout]   --> src/framed.rs:37:11
[INFO] [stdout]    |
[INFO] [stdout] 37 | use std::{convert::TryInto, fmt, io, mem, pin::Pin, task::Context, task::Poll};
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `TryInto` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `stream` is imported redundantly
[INFO] [stdout]    --> src/quicksink.rs:297:46
[INFO] [stdout]     |
[INFO] [stdout] 297 |     use futures::{channel::mpsc, prelude::*, stream};
[INFO] [stdout]     |                                  ----------  ^^^^^^
[INFO] [stdout]     |                                  |
[INFO] [stdout]     |                                  the item `stream` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]   --> src/tls.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use std::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] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.07s
[INFO] running `Command { std: "docker" "inspect" "9fa7559324dcd86a1e96a117ec1b0115773f95585bd41c18009faa8009f8859a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fa7559324dcd86a1e96a117ec1b0115773f95585bd41c18009faa8009f8859a", kill_on_drop: false }`
[INFO] [stdout] 9fa7559324dcd86a1e96a117ec1b0115773f95585bd41c18009faa8009f8859a