[INFO] fetching crate canadensis_serial 0.3.0...
[INFO] checking canadensis_serial-0.3.0 against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] extracting crate canadensis_serial 0.3.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate canadensis_serial 0.3.0 on toolchain 80399064afa4a2cd153f30d02c25f7ea0383ed65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate canadensis_serial 0.3.0
[INFO] finished tweaking crates.io crate canadensis_serial 0.3.0
[INFO] tweaked toml for crates.io crate canadensis_serial 0.3.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "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" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num_threads v0.1.7
[INFO] [stderr]   Downloaded debug-helper v0.3.13
[INFO] [stderr]   Downloaded canadensis_header v0.1.0
[INFO] [stderr]   Downloaded atomic-polyfill v1.0.3
[INFO] [stderr]   Downloaded simplelog v0.12.2
[INFO] [stderr]   Downloaded fallible_collections v0.4.9
[INFO] [stderr]   Downloaded crc-any v2.4.4
[INFO] [stderr]   Downloaded canadensis_core v0.3.0
[INFO] [stderr]   Downloaded heapless v0.7.17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6307ff16356c6e8763883f4625ab8ead45d7f6ebebb7e638bf14da5670d302dc
[INFO] running `Command { std: "docker" "start" "-a" "6307ff16356c6e8763883f4625ab8ead45d7f6ebebb7e638bf14da5670d302dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6307ff16356c6e8763883f4625ab8ead45d7f6ebebb7e638bf14da5670d302dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6307ff16356c6e8763883f4625ab8ead45d7f6ebebb7e638bf14da5670d302dc", kill_on_drop: false }`
[INFO] [stdout] 6307ff16356c6e8763883f4625ab8ead45d7f6ebebb7e638bf14da5670d302dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ca975186d0f121328b7c2efafe2e93ffa8c6acd9fad67086d57512d203a1e44
[INFO] running `Command { std: "docker" "start" "-a" "4ca975186d0f121328b7c2efafe2e93ffa8c6acd9fad67086d57512d203a1e44", kill_on_drop: false }`
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling num-conv v0.1.0
[INFO] [stderr]    Compiling time-core v0.1.2
[INFO] [stderr]     Checking powerfmt v0.2.0
[INFO] [stderr]     Checking nb v1.1.0
[INFO] [stderr]    Compiling syn v2.0.53
[INFO] [stderr]     Checking debug-helper v0.3.13
[INFO] [stderr]     Checking num_threads v0.1.7
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking hashbrown v0.13.2
[INFO] [stderr]    Compiling hash32-derive v0.1.1
[INFO] [stderr]     Checking crc-any v2.4.4
[INFO] [stderr]    Compiling time-macros v0.2.17
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]     Checking deranged v0.3.11
[INFO] [stderr]    Compiling heapless v0.7.17
[INFO] [stderr]     Checking fallible_collections v0.4.9
[INFO] [stderr]     Checking canadensis_core v0.3.0
[INFO] [stderr]     Checking time v0.3.34
[INFO] [stderr]    Compiling zerocopy-derive v0.6.6
[INFO] [stderr]     Checking simplelog v0.12.2
[INFO] [stderr]     Checking zerocopy v0.6.6
[INFO] [stderr]     Checking canadensis_header v0.1.0
[INFO] [stderr]     Checking canadensis_serial v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]  --> src/rx.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use alloc::vec::Vec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Vec` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]  --> src/tx.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use alloc::vec::Vec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Vec` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DecodeError` is never constructed
[INFO] [stdout]    --> src/cobs.rs:173:12
[INFO] [stdout]     |
[INFO] [stdout] 173 | pub struct DecodeError;
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `DecodeError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.30s
[INFO] running `Command { std: "docker" "inspect" "4ca975186d0f121328b7c2efafe2e93ffa8c6acd9fad67086d57512d203a1e44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ca975186d0f121328b7c2efafe2e93ffa8c6acd9fad67086d57512d203a1e44", kill_on_drop: false }`
[INFO] [stdout] 4ca975186d0f121328b7c2efafe2e93ffa8c6acd9fad67086d57512d203a1e44
