[INFO] fetching crate isfet 0.1.3...
[INFO] checking isfet-0.1.3 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate isfet 0.1.3 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate isfet 0.1.3 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate isfet 0.1.3
[INFO] finished tweaking crates.io crate isfet 0.1.3
[INFO] tweaked toml for crates.io crate isfet 0.1.3 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate isfet 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae6330a6621e1a24f694447613ff8b06120b1d73c03877a2e0df512852479556
[INFO] running `Command { std: "docker" "start" "-a" "ae6330a6621e1a24f694447613ff8b06120b1d73c03877a2e0df512852479556", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae6330a6621e1a24f694447613ff8b06120b1d73c03877a2e0df512852479556", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae6330a6621e1a24f694447613ff8b06120b1d73c03877a2e0df512852479556", kill_on_drop: false }`
[INFO] [stdout] ae6330a6621e1a24f694447613ff8b06120b1d73c03877a2e0df512852479556
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6717503800cb95eeffa29fe62cb81d7e248a0a06d7a57fa08104b55a429f1ed0
[INFO] running `Command { std: "docker" "start" "-a" "6717503800cb95eeffa29fe62cb81d7e248a0a06d7a57fa08104b55a429f1ed0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling serde v1.0.209
[INFO] [stderr]    Compiling camino v1.1.9
[INFO] [stderr]     Checking castaway v0.2.3
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.76
[INFO] [stderr]    Compiling serde_derive v1.0.209
[INFO] [stderr]     Checking compact_str v0.8.0
[INFO] [stderr]     Checking isfet v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `camino::Utf8PathBuf`
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use camino::Utf8PathBuf;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]`
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[feature("serde_feature")]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]`
[INFO] [stdout]    --> src/lib.rs:262:1
[INFO] [stdout]     |
[INFO] [stdout] 262 | #[feature("serde_feature")]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `camino::Utf8PathBuf`
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use camino::Utf8PathBuf;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]`
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[feature("serde_feature")]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]`
[INFO] [stdout]    --> src/lib.rs:262:1
[INFO] [stdout]     |
[INFO] [stdout] 262 | #[feature("serde_feature")]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:138:20
[INFO] [stdout]     |
[INFO] [stdout] 138 | pub struct ErrCode(u16);
[INFO] [stdout]     |            ------- ^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:138:20
[INFO] [stdout]     |
[INFO] [stdout] 138 | pub struct ErrCode(u16);
[INFO] [stdout]     |            ------- ^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.14s
[INFO] running `Command { std: "docker" "inspect" "6717503800cb95eeffa29fe62cb81d7e248a0a06d7a57fa08104b55a429f1ed0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6717503800cb95eeffa29fe62cb81d7e248a0a06d7a57fa08104b55a429f1ed0", kill_on_drop: false }`
[INFO] [stdout] 6717503800cb95eeffa29fe62cb81d7e248a0a06d7a57fa08104b55a429f1ed0