[INFO] fetching crate dialectic-tokio-serde 0.1.0...
[INFO] checking dialectic-tokio-serde-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate dialectic-tokio-serde 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate dialectic-tokio-serde 0.1.0 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 dialectic-tokio-serde 0.1.0
[INFO] finished tweaking crates.io crate dialectic-tokio-serde 0.1.0
[INFO] tweaked toml for crates.io crate dialectic-tokio-serde 0.1.0 written to /workspace/builds/worker-6-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 84 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding proc-macro-crate v1.3.1 (latest: v3.1.0)
[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 thunderdome v0.4.2 (latest: v0.6.1)
[INFO] [stderr]       Adding tokio-util v0.6.10 (latest: v0.7.10)
[INFO] [stderr]       Adding toml_edit v0.19.15 (latest: v0.22.9)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding windows-sys v0.48.0 (latest: v0.52.0)
[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] [stderr]       Adding winnow v0.5.40 (latest: v0.6.5)
[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 tokio-util v0.6.10
[INFO] [stderr]   Downloaded call-by v0.2.3
[INFO] [stderr]   Downloaded thunderdome v0.4.2
[INFO] [stderr]   Downloaded dialectic-compiler v0.1.0
[INFO] [stderr]   Downloaded dialectic-macro v0.1.0
[INFO] [stderr]   Downloaded dialectic v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 0f698aeef2de4a5c7bbf3238729e93e5f90a841e7bd2dfc10dc0e6b55d3f697d
[INFO] running `Command { std: "docker" "start" "-a" "0f698aeef2de4a5c7bbf3238729e93e5f90a841e7bd2dfc10dc0e6b55d3f697d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f698aeef2de4a5c7bbf3238729e93e5f90a841e7bd2dfc10dc0e6b55d3f697d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f698aeef2de4a5c7bbf3238729e93e5f90a841e7bd2dfc10dc0e6b55d3f697d", kill_on_drop: false }`
[INFO] [stdout] 0f698aeef2de4a5c7bbf3238729e93e5f90a841e7bd2dfc10dc0e6b55d3f697d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 95c3f057d2a2c6138ae668e6a5422ed8a3099b600ecb1e501743820d4ed9ad74
[INFO] running `Command { std: "docker" "start" "-a" "95c3f057d2a2c6138ae668e6a5422ed8a3099b600ecb1e501743820d4ed9ad74", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]    Compiling thunderdome v0.4.2
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]    Compiling dialectic v0.4.1
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking call-by v0.2.3
[INFO] [stderr]     Checking pin-project v1.1.5
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]    Compiling dialectic-compiler v0.1.0
[INFO] [stderr]     Checking tokio-util v0.6.10
[INFO] [stderr]    Compiling dialectic-macro v0.1.0
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking dialectic-tokio-serde v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]    --> src/lib.rs:304:9
[INFO] [stdout]     |
[INFO] [stdout] 304 |         <Self as backend::Receive<Choice<LENGTH>>>::recv(self)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:25:9
[INFO] [stdout]     |
[INFO] [stdout] 25  | #![warn(unused_qualifications, unused_results)]
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 304 -         <Self as backend::Receive<Choice<LENGTH>>>::recv(self)
[INFO] [stdout] 304 +         <Self as Receive<Choice<LENGTH>>>::recv(self)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]    --> src/lib.rs:304:9
[INFO] [stdout]     |
[INFO] [stdout] 304 |         <Self as backend::Receive<Choice<LENGTH>>>::recv(self)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:25:9
[INFO] [stdout]     |
[INFO] [stdout] 25  | #![warn(unused_qualifications, unused_results)]
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 304 -         <Self as backend::Receive<Choice<LENGTH>>>::recv(self)
[INFO] [stdout] 304 +         <Self as Receive<Choice<LENGTH>>>::recv(self)
[INFO] [stdout]     |
[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 32.68s
[INFO] running `Command { std: "docker" "inspect" "95c3f057d2a2c6138ae668e6a5422ed8a3099b600ecb1e501743820d4ed9ad74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95c3f057d2a2c6138ae668e6a5422ed8a3099b600ecb1e501743820d4ed9ad74", kill_on_drop: false }`
[INFO] [stdout] 95c3f057d2a2c6138ae668e6a5422ed8a3099b600ecb1e501743820d4ed9ad74
[INFO] checking dialectic-tokio-serde-0.1.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate dialectic-tokio-serde 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate dialectic-tokio-serde 0.1.0 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 dialectic-tokio-serde 0.1.0
[INFO] finished tweaking crates.io crate dialectic-tokio-serde 0.1.0
[INFO] tweaked toml for crates.io crate dialectic-tokio-serde 0.1.0 written to /workspace/builds/worker-6-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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 77019232cd9778f0344a78e48650a94ba44d0521973037dd49d45ae427a82e01
[INFO] running `Command { std: "docker" "start" "-a" "77019232cd9778f0344a78e48650a94ba44d0521973037dd49d45ae427a82e01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "77019232cd9778f0344a78e48650a94ba44d0521973037dd49d45ae427a82e01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77019232cd9778f0344a78e48650a94ba44d0521973037dd49d45ae427a82e01", kill_on_drop: false }`
[INFO] [stdout] 77019232cd9778f0344a78e48650a94ba44d0521973037dd49d45ae427a82e01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 51d283f97dd5713b28950b5ce40ed23000d2349c256f3689ccd1aa732f0bf7e0
[INFO] running `Command { std: "docker" "start" "-a" "51d283f97dd5713b28950b5ce40ed23000d2349c256f3689ccd1aa732f0bf7e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling thunderdome v0.4.2
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]    Compiling dialectic v0.4.1
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking call-by v0.2.3
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stderr]     Checking pin-project v1.1.5
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking tokio-util v0.6.10
[INFO] [stderr]    Compiling dialectic-compiler v0.1.0
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling dialectic-macro v0.1.0
[INFO] [stderr]     Checking dialectic-tokio-serde v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]    --> src/lib.rs:304:9
[INFO] [stdout]     |
[INFO] [stdout] 304 |         <Self as backend::Receive<Choice<LENGTH>>>::recv(self)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:25:9
[INFO] [stdout]     |
[INFO] [stdout] 25  | #![warn(unused_qualifications, unused_results)]
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 304 -         <Self as backend::Receive<Choice<LENGTH>>>::recv(self)
[INFO] [stdout] 304 +         <Self as Receive<Choice<LENGTH>>>::recv(self)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]    --> src/lib.rs:304:9
[INFO] [stdout]     |
[INFO] [stdout] 304 |         <Self as backend::Receive<Choice<LENGTH>>>::recv(self)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:25:9
[INFO] [stdout]     |
[INFO] [stdout] 25  | #![warn(unused_qualifications, unused_results)]
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 304 -         <Self as backend::Receive<Choice<LENGTH>>>::recv(self)
[INFO] [stdout] 304 +         <Self as Receive<Choice<LENGTH>>>::recv(self)
[INFO] [stdout]     |
[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 29.98s
[INFO] running `Command { std: "docker" "inspect" "51d283f97dd5713b28950b5ce40ed23000d2349c256f3689ccd1aa732f0bf7e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51d283f97dd5713b28950b5ce40ed23000d2349c256f3689ccd1aa732f0bf7e0", kill_on_drop: false }`
[INFO] [stdout] 51d283f97dd5713b28950b5ce40ed23000d2349c256f3689ccd1aa732f0bf7e0