[INFO] fetching crate byteserde_derive 0.6.2...
[INFO] checking byteserde_derive-0.6.2 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate byteserde_derive 0.6.2 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate byteserde_derive 0.6.2 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate byteserde_derive 0.6.2
[INFO] finished tweaking crates.io crate byteserde_derive 0.6.2
[INFO] tweaked toml for crates.io crate byteserde_derive 0.6.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 46 packages to latest compatible versions
[INFO] [stderr]       Adding env_logger v0.10.2 (available: v0.11.5)
[INFO] [stderr]       Adding windows-sys v0.52.0 (available: v0.59.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e32062fc1c912e3b7143a06f242dbaefc00b447b36e8d0b31e671e2482347ff
[INFO] running `Command { std: "docker" "start" "-a" "6e32062fc1c912e3b7143a06f242dbaefc00b447b36e8d0b31e671e2482347ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e32062fc1c912e3b7143a06f242dbaefc00b447b36e8d0b31e671e2482347ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e32062fc1c912e3b7143a06f242dbaefc00b447b36e8d0b31e671e2482347ff", kill_on_drop: false }`
[INFO] [stdout] 6e32062fc1c912e3b7143a06f242dbaefc00b447b36e8d0b31e671e2482347ff
[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 -Dtail_expr_drop_order" "-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 118db4b090d4213d59e1259f6c242bb572bec5b7dec2fe000b15020a4933a214
[INFO] running `Command { std: "docker" "start" "-a" "118db4b090d4213d59e1259f6c242bb572bec5b7dec2fe000b15020a4933a214", kill_on_drop: false }`
[INFO] [stderr]    Compiling trybuild v1.0.99
[INFO] [stderr]     Checking dissimilar v1.0.9
[INFO] [stderr]     Checking byteserde v0.6.2
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]     Checking env_logger v0.10.2
[INFO] [stderr]     Checking syn v2.0.79
[INFO] [stderr]     Checking byteserde_derive v0.6.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/attr_struct.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |     Set(Ident),
[INFO] [stdout]    |     --- ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 85 |     Set(()),
[INFO] [stdout]    |         ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_derive v1.0.210
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/attr_struct.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |     Set(Ident),
[INFO] [stdout]    |     --- ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 85 |     Set(()),
[INFO] [stdout]    |         ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/attr_struct.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |     Set(Ident),
[INFO] [stdout]    |     --- ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 85 |     Set(()),
[INFO] [stdout]    |         ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.04s
[INFO] running `Command { std: "docker" "inspect" "118db4b090d4213d59e1259f6c242bb572bec5b7dec2fe000b15020a4933a214", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "118db4b090d4213d59e1259f6c242bb572bec5b7dec2fe000b15020a4933a214", kill_on_drop: false }`
[INFO] [stdout] 118db4b090d4213d59e1259f6c242bb572bec5b7dec2fe000b15020a4933a214