[INFO] fetching crate div 0.4.0...
[INFO] checking div-0.4.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate div 0.4.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate div 0.4.0 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 div 0.4.0
[INFO] finished tweaking crates.io crate div 0.4.0
[INFO] tweaked toml for crates.io crate div 0.4.0 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]     Updating crates.io index
[INFO] [stderr]      Locking 36 packages to latest compatible versions
[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-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] 7cb0cc13f8f54cff2f55c0d181363ae81a1910f12420c464ed7e40cdc73a7b7a
[INFO] running `Command { std: "docker" "start" "-a" "7cb0cc13f8f54cff2f55c0d181363ae81a1910f12420c464ed7e40cdc73a7b7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7cb0cc13f8f54cff2f55c0d181363ae81a1910f12420c464ed7e40cdc73a7b7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cb0cc13f8f54cff2f55c0d181363ae81a1910f12420c464ed7e40cdc73a7b7a", kill_on_drop: false }`
[INFO] [stdout] 7cb0cc13f8f54cff2f55c0d181363ae81a1910f12420c464ed7e40cdc73a7b7a
[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] 64a4769f156d2f11e8140a0009a6355be108699ca4c7eeecf588cef816dce5a5
[INFO] running `Command { std: "docker" "start" "-a" "64a4769f156d2f11e8140a0009a6355be108699ca4c7eeecf588cef816dce5a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.93
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling bumpalo v3.16.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.93
[INFO] [stderr]     Checking scoped-tls v1.0.1
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.93
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.3.43
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.93
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.93
[INFO] [stderr]     Checking js-sys v0.3.70
[INFO] [stderr]     Checking console_error_panic_hook v0.1.7
[INFO] [stderr]     Checking web-sys v0.3.70
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.43
[INFO] [stderr]     Checking wasm-bindgen-test v0.3.43
[INFO] [stderr]     Checking div v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/pane.rs:76:13
[INFO] [stdout]    |
[INFO] [stdout] 76 |         let mut v = self.nodes.get_mut(&p)?;
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/pane.rs:76:13
[INFO] [stdout]    |
[INFO] [stdout] 76 |         let mut v = self.nodes.get_mut(&p)?;
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/pane.rs:103:13
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let mut v = self.nodes.get_mut(&pane_handle)?;
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/pane.rs:103:13
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let mut v = self.nodes.get_mut(&pane_handle)?;
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.32s
[INFO] running `Command { std: "docker" "inspect" "64a4769f156d2f11e8140a0009a6355be108699ca4c7eeecf588cef816dce5a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64a4769f156d2f11e8140a0009a6355be108699ca4c7eeecf588cef816dce5a5", kill_on_drop: false }`
[INFO] [stdout] 64a4769f156d2f11e8140a0009a6355be108699ca4c7eeecf588cef816dce5a5