[INFO] fetching crate bart_derive 0.1.6...
[INFO] checking bart_derive-0.1.6 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate bart_derive 0.1.6 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate bart_derive 0.1.6 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 bart_derive 0.1.6
[INFO] finished tweaking crates.io crate bart_derive 0.1.6
[INFO] tweaked toml for crates.io crate bart_derive 0.1.6 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] [stderr]       Adding itertools v0.6.5 (available: v0.13.0)
[INFO] [stderr]       Adding num v0.1.42 (available: v0.4.3)
[INFO] [stderr]       Adding quote v0.3.15 (available: v1.0.37)
[INFO] [stderr]       Adding syn v0.11.11 (available: v2.0.77)
[INFO] [stderr]       Adding unicode-xid v0.0.4 (available: v0.2.6)
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec1a553a2e488f5685d6a25df3b4402913d124129d7612759fd5ff95997a8c4a
[INFO] running `Command { std: "docker" "start" "-a" "ec1a553a2e488f5685d6a25df3b4402913d124129d7612759fd5ff95997a8c4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec1a553a2e488f5685d6a25df3b4402913d124129d7612759fd5ff95997a8c4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec1a553a2e488f5685d6a25df3b4402913d124129d7612759fd5ff95997a8c4a", kill_on_drop: false }`
[INFO] [stdout] ec1a553a2e488f5685d6a25df3b4402913d124129d7612759fd5ff95997a8c4a
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5a0ec055da2e020c16ec4c00cd4f781f1e91a0bda98b004c7cc01a7a94b9d69
[INFO] running `Command { std: "docker" "start" "-a" "c5a0ec055da2e020c16ec4c00cd4f781f1e91a0bda98b004c7cc01a7a94b9d69", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking unicode-xid v0.0.4
[INFO] [stderr]     Checking quote v0.3.15
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking synom v0.11.3
[INFO] [stderr]     Checking syn v0.11.11
[INFO] [stderr]     Checking itertools v0.6.5
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking bart_derive v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `expected` and `found` are never read
[INFO] [stdout]  --> src/parser.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Mismatch {
[INFO] [stdout]   |     -------- fields in this variant
[INFO] [stdout] 8 |         expected: &'static str,
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout] 9 |         found: Option<Token<'a>>,
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Error` 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: fields `expected` and `found` are never read
[INFO] [stdout]  --> src/parser.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Mismatch {
[INFO] [stdout]   |     -------- fields in this variant
[INFO] [stdout] 8 |         expected: &'static str,
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout] 9 |         found: Option<Token<'a>>,
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Error` 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.70s
[INFO] running `Command { std: "docker" "inspect" "c5a0ec055da2e020c16ec4c00cd4f781f1e91a0bda98b004c7cc01a7a94b9d69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5a0ec055da2e020c16ec4c00cd4f781f1e91a0bda98b004c7cc01a7a94b9d69", kill_on_drop: false }`
[INFO] [stdout] c5a0ec055da2e020c16ec4c00cd4f781f1e91a0bda98b004c7cc01a7a94b9d69