[INFO] fetching crate sceller 0.3.0...
[INFO] checking sceller-0.3.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate sceller 0.3.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate sceller 0.3.0 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 sceller 0.3.0
[INFO] finished tweaking crates.io crate sceller 0.3.0
[INFO] tweaked toml for crates.io crate sceller 0.3.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate sceller 0.3.0 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] [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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 239f5a774661e80678e44bcfe50fbace36a9292811b74c518d04493a756c1202
[INFO] running `Command { std: "docker" "start" "-a" "239f5a774661e80678e44bcfe50fbace36a9292811b74c518d04493a756c1202", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "239f5a774661e80678e44bcfe50fbace36a9292811b74c518d04493a756c1202", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "239f5a774661e80678e44bcfe50fbace36a9292811b74c518d04493a756c1202", kill_on_drop: false }`
[INFO] [stdout] 239f5a774661e80678e44bcfe50fbace36a9292811b74c518d04493a756c1202
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 8fa8bd50fc6a006bc49d0cfcfd0499b837b349562b835cc230893f4b1840afa4
[INFO] running `Command { std: "docker" "start" "-a" "8fa8bd50fc6a006bc49d0cfcfd0499b837b349562b835cc230893f4b1840afa4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling eyre v0.6.8
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking once_cell v1.13.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking sceller v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `ResParamType` is never used
[INFO] [stdout]   --> src/system.rs:97:7
[INFO] [stdout]    |
[INFO] [stdout] 97 | trait ResParamType<'a> {
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout]    |
[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: field `0` is never read
[INFO] [stdout]    --> src/entities/mod.rs:739:15
[INFO] [stdout]     |
[INFO] [stdout] 739 |     struct Id(String);
[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: trait `ResParamType` is never used
[INFO] [stdout]   --> src/system.rs:97:7
[INFO] [stdout]    |
[INFO] [stdout] 97 | trait ResParamType<'a> {
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/entities.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let mut health = borrow_mut.downcast_mut::<Health>().unwrap();
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> examples/entities.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Speed(u32);
[INFO] [stdout]   |        ----- ^^^
[INFO] [stdout]   |        |
[INFO] [stdout]   |        field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `Speed` 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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.78s
[INFO] running `Command { std: "docker" "inspect" "8fa8bd50fc6a006bc49d0cfcfd0499b837b349562b835cc230893f4b1840afa4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fa8bd50fc6a006bc49d0cfcfd0499b837b349562b835cc230893f4b1840afa4", kill_on_drop: false }`
[INFO] [stdout] 8fa8bd50fc6a006bc49d0cfcfd0499b837b349562b835cc230893f4b1840afa4