[INFO] fetching crate rust-hdl-bsp-tang-nano-9k 0.0.1...
[INFO] checking rust-hdl-bsp-tang-nano-9k-0.0.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate rust-hdl-bsp-tang-nano-9k 0.0.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate rust-hdl-bsp-tang-nano-9k 0.0.1 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 rust-hdl-bsp-tang-nano-9k 0.0.1
[INFO] finished tweaking crates.io crate rust-hdl-bsp-tang-nano-9k 0.0.1
[INFO] tweaked toml for crates.io crate rust-hdl-bsp-tang-nano-9k 0.0.1 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]     Updating crates.io index
[INFO] [stderr]      Locking 49 packages
[INFO] [stderr]       Adding base64 v0.13.1 (latest: v0.22.0)
[INFO] [stderr]       Adding evalexpr v6.6.0 (latest: v11.3.0)
[INFO] [stderr]       Adding fixedbitset v0.4.2 (latest: v0.5.6)
[INFO] [stderr]       Adding rust-hdl v0.45.1 (latest: v0.46.0)
[INFO] [stderr]       Adding rust-hdl-core v0.45.1 (latest: v0.46.0)
[INFO] [stderr]       Adding rust-hdl-fpga-support v0.45.1 (latest: v0.46.0)
[INFO] [stderr]       Adding rust-hdl-hls v0.45.1 (latest: v0.46.0)
[INFO] [stderr]       Adding rust-hdl-macros v0.45.1 (latest: v0.46.0)
[INFO] [stderr]       Adding rust-hdl-sim v0.45.1 (latest: v0.46.0)
[INFO] [stderr]       Adding rust-hdl-widgets v0.45.1 (latest: v0.46.0)
[INFO] [stderr]       Adding svg v0.10.0 (latest: v0.16.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding vcd v0.6.1 (latest: v0.7.0)
[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 evalexpr v6.6.0
[INFO] [stderr]   Downloaded embed-doc-image v0.1.4
[INFO] [stderr]   Downloaded rust-hdl-core v0.45.1
[INFO] [stderr]   Downloaded rust-hdl-fpga-support v0.45.1
[INFO] [stderr]   Downloaded rust-hdl-sim v0.45.1
[INFO] [stderr]   Downloaded rust-hdl-hls v0.45.1
[INFO] [stderr]   Downloaded rust-hdl v0.45.1
[INFO] [stderr]   Downloaded array-init v2.1.0
[INFO] [stderr]   Downloaded substring v1.4.5
[INFO] [stderr]   Downloaded vcd v0.6.1
[INFO] [stderr]   Downloaded rust-hdl-macros v0.45.1
[INFO] [stderr]   Downloaded rust-hdl-widgets v0.45.1
[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] d8edf284d1e641e5d9ea4181589f100c24540af23757119f7a88f45b1075e84c
[INFO] running `Command { std: "docker" "start" "-a" "d8edf284d1e641e5d9ea4181589f100c24540af23757119f7a88f45b1075e84c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8edf284d1e641e5d9ea4181589f100c24540af23757119f7a88f45b1075e84c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8edf284d1e641e5d9ea4181589f100c24540af23757119f7a88f45b1075e84c", kill_on_drop: false }`
[INFO] [stdout] d8edf284d1e641e5d9ea4181589f100c24540af23757119f7a88f45b1075e84c
[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] 8e48a3cafeaa5a19d146fd43d601571613964cdae417ddb26882eaa621c82855
[INFO] running `Command { std: "docker" "start" "-a" "8e48a3cafeaa5a19d146fd43d601571613964cdae417ddb26882eaa621c82855", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling regex-syntax v0.8.3
[INFO] [stderr]    Compiling substring v1.4.5
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]    Compiling base64 v0.13.1
[INFO] [stderr]     Checking fixedbitset v0.4.2
[INFO] [stderr]     Checking vcd v0.6.1
[INFO] [stderr]     Checking svg v0.10.0
[INFO] [stderr]     Checking evalexpr v6.6.0
[INFO] [stderr]     Checking array-init v2.1.0
[INFO] [stderr]    Compiling seq-macro v0.3.5
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking crossbeam-queue v0.3.11
[INFO] [stderr]     Checking crossbeam-channel v0.5.12
[INFO] [stderr]     Checking indexmap v2.2.6
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking crossbeam v0.8.4
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking petgraph v0.6.4
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]    Compiling embed-doc-image v0.1.4
[INFO] [stderr]    Compiling rust-hdl-macros v0.45.1
[INFO] [stderr]     Checking rust-hdl-core v0.45.1
[INFO] [stderr]     Checking rust-hdl-widgets v0.45.1
[INFO] [stderr]     Checking rust-hdl-fpga-support v0.45.1
[INFO] [stderr]     Checking rust-hdl-hls v0.45.1
[INFO] [stderr]     Checking rust-hdl-sim v0.45.1
[INFO] [stderr]     Checking rust-hdl v0.45.1
[INFO] [stderr]     Checking rust-hdl-bsp-tang-nano-9k v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `check_all` is imported redundantly
[INFO] [stdout]  --> src/synth.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rust_hdl::core::check_error::check_all;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 2 | use rust_hdl::core::prelude::*;
[INFO] [stdout]   |     -------------------------- the item `check_all` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `check_all` is imported redundantly
[INFO] [stdout]  --> src/synth.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rust_hdl::core::check_error::check_all;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 2 | use rust_hdl::core::prelude::*;
[INFO] [stdout]   |     -------------------------- the item `check_all` is already imported 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 19.93s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: svg v0.10.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "8e48a3cafeaa5a19d146fd43d601571613964cdae417ddb26882eaa621c82855", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e48a3cafeaa5a19d146fd43d601571613964cdae417ddb26882eaa621c82855", kill_on_drop: false }`
[INFO] [stdout] 8e48a3cafeaa5a19d146fd43d601571613964cdae417ddb26882eaa621c82855