[INFO] fetching crate gel-o 0.0.3...
[INFO] checking gel-o-0.0.3 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate gel-o 0.0.3 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate gel-o 0.0.3 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 gel-o 0.0.3
[INFO] finished tweaking crates.io crate gel-o 0.0.3
[INFO] tweaked toml for crates.io crate gel-o 0.0.3 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate gel-o 0.0.3 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] f220324c924161da6717d23cad360c7a654788507815e289f1649188cc732396
[INFO] running `Command { std: "docker" "start" "-a" "f220324c924161da6717d23cad360c7a654788507815e289f1649188cc732396", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f220324c924161da6717d23cad360c7a654788507815e289f1649188cc732396", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f220324c924161da6717d23cad360c7a654788507815e289f1649188cc732396", kill_on_drop: false }`
[INFO] [stdout] f220324c924161da6717d23cad360c7a654788507815e289f1649188cc732396
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] bd655ff35dba05c18697d26e44c3cc104a96b6afa2167ab66a0a5ce23cec03ba
[INFO] running `Command { std: "docker" "start" "-a" "bd655ff35dba05c18697d26e44c3cc104a96b6afa2167ab66a0a5ce23cec03ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling cc v1.0.52
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking epoll v4.1.0
[INFO] [stderr]    Compiling evdev-sys v0.2.1
[INFO] [stderr]     Checking inotify v0.8.2
[INFO] [stderr]     Checking evdev-rs v0.4.0
[INFO] [stderr]     Checking gel-o v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/lib.rs:181:48
[INFO] [stdout]     |
[INFO] [stdout] 181 |             for (recieved_inst, event, idx) in opt {
[INFO] [stdout]     |                                                ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |             while let Some((recieved_inst, event, idx)) = opt {
[INFO] [stdout]     |             ~~~~~~~~~~~~~~~                           ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |             if let Some((recieved_inst, event, idx)) = opt {
[INFO] [stdout]     |             ~~~~~~~~~~~~                           ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/lib.rs:181:48
[INFO] [stdout]     |
[INFO] [stdout] 181 |             for (recieved_inst, event, idx) in opt {
[INFO] [stdout]     |                                                ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |             while let Some((recieved_inst, event, idx)) = opt {
[INFO] [stdout]     |             ~~~~~~~~~~~~~~~                           ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |             if let Some((recieved_inst, event, idx)) = opt {
[INFO] [stdout]     |             ~~~~~~~~~~~~                           ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.81s
[INFO] running `Command { std: "docker" "inspect" "bd655ff35dba05c18697d26e44c3cc104a96b6afa2167ab66a0a5ce23cec03ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd655ff35dba05c18697d26e44c3cc104a96b6afa2167ab66a0a5ce23cec03ba", kill_on_drop: false }`
[INFO] [stdout] bd655ff35dba05c18697d26e44c3cc104a96b6afa2167ab66a0a5ce23cec03ba