[INFO] fetching crate usbd_bulk_only_transport 0.1.0...
[INFO] checking usbd_bulk_only_transport-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate usbd_bulk_only_transport 0.1.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate usbd_bulk_only_transport 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 usbd_bulk_only_transport 0.1.0
[INFO] finished tweaking crates.io crate usbd_bulk_only_transport 0.1.0
[INFO] tweaked toml for crates.io crate usbd_bulk_only_transport 0.1.0 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 15 packages
[INFO] [stderr]       Adding embedded-hal v0.2.7 (latest: v1.0.0)
[INFO] [stderr]       Adding nb v0.1.3 (latest: v1.1.0)
[INFO] [stderr]       Adding packing v0.1.0 (latest: v0.2.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding usb-device v0.2.9 (latest: v0.3.2)
[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 packing v0.1.0
[INFO] [stderr]   Downloaded usbd_mass_storage v0.1.0
[INFO] [stderr]   Downloaded itm_logger v0.1.2
[INFO] [stderr]   Downloaded packing_codegen v0.1.0
[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] 0fabeaaf228ee321b0e9cbd263820868e90f274675c0440c15efbf490b6474b4
[INFO] running `Command { std: "docker" "start" "-a" "0fabeaaf228ee321b0e9cbd263820868e90f274675c0440c15efbf490b6474b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0fabeaaf228ee321b0e9cbd263820868e90f274675c0440c15efbf490b6474b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fabeaaf228ee321b0e9cbd263820868e90f274675c0440c15efbf490b6474b4", kill_on_drop: false }`
[INFO] [stdout] 0fabeaaf228ee321b0e9cbd263820868e90f274675c0440c15efbf490b6474b4
[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] d6376356cf43eea9e85253609c28b394e248745e4a3572c6fa05f0860f72c8f1
[INFO] running `Command { std: "docker" "start" "-a" "d6376356cf43eea9e85253609c28b394e248745e4a3572c6fa05f0860f72c8f1", kill_on_drop: false }`
[INFO] [stderr]     Checking nb v1.1.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking itm_logger v0.1.2
[INFO] [stderr]     Checking usb-device v0.2.9
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]    Compiling packing_codegen v0.1.0
[INFO] [stderr]     Checking packing v0.1.0
[INFO] [stderr]     Checking usbd_mass_storage v0.1.0
[INFO] [stderr]     Checking usbd_bulk_only_transport v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.85s
[INFO] running `Command { std: "docker" "inspect" "d6376356cf43eea9e85253609c28b394e248745e4a3572c6fa05f0860f72c8f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6376356cf43eea9e85253609c28b394e248745e4a3572c6fa05f0860f72c8f1", kill_on_drop: false }`
[INFO] [stdout] d6376356cf43eea9e85253609c28b394e248745e4a3572c6fa05f0860f72c8f1
[INFO] checking usbd_bulk_only_transport-0.1.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate usbd_bulk_only_transport 0.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate usbd_bulk_only_transport 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 usbd_bulk_only_transport 0.1.0
[INFO] finished tweaking crates.io crate usbd_bulk_only_transport 0.1.0
[INFO] tweaked toml for crates.io crate usbd_bulk_only_transport 0.1.0 written to /workspace/builds/worker-5-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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 78de16096ac17ac71956241a343fb28dd7499e0f725a862fa753e46004ff1209
[INFO] running `Command { std: "docker" "start" "-a" "78de16096ac17ac71956241a343fb28dd7499e0f725a862fa753e46004ff1209", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "78de16096ac17ac71956241a343fb28dd7499e0f725a862fa753e46004ff1209", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78de16096ac17ac71956241a343fb28dd7499e0f725a862fa753e46004ff1209", kill_on_drop: false }`
[INFO] [stdout] 78de16096ac17ac71956241a343fb28dd7499e0f725a862fa753e46004ff1209
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] cca3adcf324df0d50a24e76892f217c5294b32adf85e9850387fc35ba7c77931
[INFO] running `Command { std: "docker" "start" "-a" "cca3adcf324df0d50a24e76892f217c5294b32adf85e9850387fc35ba7c77931", kill_on_drop: false }`
[INFO] [stderr]     Checking nb v1.1.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking itm_logger v0.1.2
[INFO] [stderr]     Checking usb-device v0.2.9
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]    Compiling packing_codegen v0.1.0
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/packing_codegen-0.1.0/src/lib.rs:157:25
[INFO] [stdout]     |
[INFO] [stdout] 157 | ...   Err(Error::new(l.path.span(), "pkd abbreviated attribute expects exactly 4 values: #[pkd(<start_bit>, <end_bit>, <start_byte>, <end...
[INFO] [stdout]     |       ^^^ cannot infer type of the type parameter `T` declared on the enum `Result`
[INFO] [stdout]     |
[INFO] [stdout] help: consider specifying the generic arguments
[INFO] [stdout]     |
[INFO] [stdout] 157 |                         Err::<T, syn::Error>(Error::new(l.path.span(), "pkd abbreviated attribute expects exactly 4 values: #[pkd(<start_bit>, <end_bit>, <start_byte>, <end_byte>)]"))?;
[INFO] [stdout]     |                            +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/packing_codegen-0.1.0/src/lib.rs:612:17
[INFO] [stdout]     |
[INFO] [stdout] 612 |                 Err(Error::new(field.end_bit.0.unwrap().1, 
[INFO] [stdout]     |                 ^^^ cannot infer type of the type parameter `T` declared on the enum `Result`
[INFO] [stdout]     |
[INFO] [stdout] help: consider specifying the generic arguments
[INFO] [stdout]     |
[INFO] [stdout] 612 |                 Err::<T, syn::Error>(Error::new(field.end_bit.0.unwrap().1, 
[INFO] [stdout]     |                    +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/packing_codegen-0.1.0/src/lib.rs:883:13
[INFO] [stdout]     |
[INFO] [stdout] 883 |             Err(Error::new(ident.span(), "Only unit variants supported by Packed derive"))?;
[INFO] [stdout]     |             ^^^ cannot infer type of the type parameter `T` declared on the enum `Result`
[INFO] [stdout]     |
[INFO] [stdout] help: consider specifying the generic arguments
[INFO] [stdout]     |
[INFO] [stdout] 883 |             Err::<T, syn::Error>(Error::new(ident.span(), "Only unit variants supported by Packed derive"))?;
[INFO] [stdout]     |                +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `packing_codegen` (lib) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "cca3adcf324df0d50a24e76892f217c5294b32adf85e9850387fc35ba7c77931", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cca3adcf324df0d50a24e76892f217c5294b32adf85e9850387fc35ba7c77931", kill_on_drop: false }`
[INFO] [stdout] cca3adcf324df0d50a24e76892f217c5294b32adf85e9850387fc35ba7c77931