[INFO] fetching crate cborg 0.3.0...
[INFO] checking cborg-0.3.0 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate cborg 0.3.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate cborg 0.3.0
[INFO] finished tweaking crates.io crate cborg 0.3.0
[INFO] tweaked toml for crates.io crate cborg 0.3.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cborg 0.3.0 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f9db0e5a416fefe49b5c5fc81c346a9939a6d266120b87e5dcf35e6fe52e5035
[INFO] running `Command { std: "docker" "start" "-a" "f9db0e5a416fefe49b5c5fc81c346a9939a6d266120b87e5dcf35e6fe52e5035", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9db0e5a416fefe49b5c5fc81c346a9939a6d266120b87e5dcf35e6fe52e5035", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9db0e5a416fefe49b5c5fc81c346a9939a6d266120b87e5dcf35e6fe52e5035", kill_on_drop: false }`
[INFO] [stdout] f9db0e5a416fefe49b5c5fc81c346a9939a6d266120b87e5dcf35e6fe52e5035
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6105d3ec09808dcf4681a7075c753e86664ebfc05c16c85f6c5b4c5356498b5
[INFO] running `Command { std: "docker" "start" "-a" "e6105d3ec09808dcf4681a7075c753e86664ebfc05c16c85f6c5b4c5356498b5", kill_on_drop: false }`
[INFO] [stderr]     Checking cborg v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `error` is never read
[INFO] [stdout]   --> src/lib.rs:42:2
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct CborError {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 41 |     kind: ErrorKind,
[INFO] [stdout] 42 |     error: Box<dyn error::Error + Send + Sync>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CborError` 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: unnecessary transmute
[INFO] [stdout]    --> src/value/types.rs:107:27
[INFO] [stdout]     |
[INFO] [stdout] 107 |                 let y: u64 = unsafe { std::mem::transmute::<f64, u64>(*x) };
[INFO] [stdout]     |                                       -------------------------------^^^^
[INFO] [stdout]     |                                       |
[INFO] [stdout]     |                                       help: replace this with: `f64::to_bits`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `error` is never read
[INFO] [stdout]   --> src/lib.rs:42:2
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct CborError {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 41 |     kind: ErrorKind,
[INFO] [stdout] 42 |     error: Box<dyn error::Error + Send + Sync>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CborError` 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: unnecessary transmute
[INFO] [stdout]    --> src/value/types.rs:107:27
[INFO] [stdout]     |
[INFO] [stdout] 107 |                 let y: u64 = unsafe { std::mem::transmute::<f64, u64>(*x) };
[INFO] [stdout]     |                                       -------------------------------^^^^
[INFO] [stdout]     |                                       |
[INFO] [stdout]     |                                       help: replace this with: `f64::to_bits`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "e6105d3ec09808dcf4681a7075c753e86664ebfc05c16c85f6c5b4c5356498b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6105d3ec09808dcf4681a7075c753e86664ebfc05c16c85f6c5b4c5356498b5", kill_on_drop: false }`
[INFO] [stdout] e6105d3ec09808dcf4681a7075c753e86664ebfc05c16c85f6c5b4c5356498b5