[INFO] fetching crate gel-o 0.0.3...
[INFO] checking gel-o-0.0.3 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate gel-o 0.0.3 into /workspace/builds/worker-0-tc2/source
[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-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate gel-o 0.0.3 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5fc9f61a529b41f72a170a2ac153c30cc144c8698d1106e039ef04731453572c
[INFO] running `Command { std: "docker" "start" "-a" "5fc9f61a529b41f72a170a2ac153c30cc144c8698d1106e039ef04731453572c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5fc9f61a529b41f72a170a2ac153c30cc144c8698d1106e039ef04731453572c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fc9f61a529b41f72a170a2ac153c30cc144c8698d1106e039ef04731453572c", kill_on_drop: false }`
[INFO] [stdout] 5fc9f61a529b41f72a170a2ac153c30cc144c8698d1106e039ef04731453572c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e67d80873bdcca728d0d9f473eef3ec2a60e79c0a0bbf07a5d04da313e7227b
[INFO] running `Command { std: "docker" "start" "-a" "9e67d80873bdcca728d0d9f473eef3ec2a60e79c0a0bbf07a5d04da313e7227b", 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]    Compiling evdev-sys v0.2.1
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking epoll v4.1.0
[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 -             for (recieved_inst, event, idx) in opt {
[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 -             for (recieved_inst, event, idx) in opt {
[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 -             for (recieved_inst, event, idx) in opt {
[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 -             for (recieved_inst, event, idx) in opt {
[INFO] [stdout] 181 +             if let Some((recieved_inst, event, idx)) = opt {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.41s
[INFO] running `Command { std: "docker" "inspect" "9e67d80873bdcca728d0d9f473eef3ec2a60e79c0a0bbf07a5d04da313e7227b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e67d80873bdcca728d0d9f473eef3ec2a60e79c0a0bbf07a5d04da313e7227b", kill_on_drop: false }`
[INFO] [stdout] 9e67d80873bdcca728d0d9f473eef3ec2a60e79c0a0bbf07a5d04da313e7227b