[INFO] fetching crate wrestic-rs 1.0.0...
[INFO] checking wrestic-rs-1.0.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate wrestic-rs 1.0.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate wrestic-rs 1.0.0 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wrestic-rs 1.0.0
[INFO] finished tweaking crates.io crate wrestic-rs 1.0.0
[INFO] tweaked toml for crates.io crate wrestic-rs 1.0.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate wrestic-rs 1.0.0 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9af790fbcea76c406c725f2ce65fe32e52330f94085e83b05760869590774ebe
[INFO] running `Command { std: "docker" "start" "-a" "9af790fbcea76c406c725f2ce65fe32e52330f94085e83b05760869590774ebe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9af790fbcea76c406c725f2ce65fe32e52330f94085e83b05760869590774ebe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9af790fbcea76c406c725f2ce65fe32e52330f94085e83b05760869590774ebe", kill_on_drop: false }`
[INFO] [stdout] 9af790fbcea76c406c725f2ce65fe32e52330f94085e83b05760869590774ebe
[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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f4ecb863026a1af9740ac8d38a7be6ecdd3c3da66328d1273bfdb41f003328d
[INFO] running `Command { std: "docker" "start" "-a" "5f4ecb863026a1af9740ac8d38a7be6ecdd3c3da66328d1273bfdb41f003328d", kill_on_drop: false }`
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[INFO] [stderr]     Checking wrestic-rs v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]  --> src/utils/set_environment_variables.rs:8:16
[INFO] [stdout]   |
[INFO] [stdout] 8 |     for env in &setting.env {
[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] 8 |     while let Some(env) = &setting.env {
[INFO] [stdout]   |     ~~~~~~~~~~~~~~~   ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]   |
[INFO] [stdout] 8 |     if let Some(env) = &setting.env {
[INFO] [stdout]   |     ~~~~~~~~~~~~   ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[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/utils/set_environment_variables.rs:8:16
[INFO] [stdout]   |
[INFO] [stdout] 8 |     for env in &setting.env {
[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] 8 |     while let Some(env) = &setting.env {
[INFO] [stdout]   |     ~~~~~~~~~~~~~~~   ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]   |
[INFO] [stdout] 8 |     if let Some(env) = &setting.env {
[INFO] [stdout]   |     ~~~~~~~~~~~~   ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 14s
[INFO] running `Command { std: "docker" "inspect" "5f4ecb863026a1af9740ac8d38a7be6ecdd3c3da66328d1273bfdb41f003328d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f4ecb863026a1af9740ac8d38a7be6ecdd3c3da66328d1273bfdb41f003328d", kill_on_drop: false }`
[INFO] [stdout] 5f4ecb863026a1af9740ac8d38a7be6ecdd3c3da66328d1273bfdb41f003328d