[INFO] fetching crate wrestic-rs 1.0.0...
[INFO] checking wrestic-rs-1.0.0 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate wrestic-rs 1.0.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate wrestic-rs 1.0.0 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "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-6-tc1/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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded color-print-proc-macro v0.3.5
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[INFO] [stderr]   Downloaded portable-atomic v1.4.3
[INFO] [stderr]   Downloaded cmd_lib v1.9.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 561ce6fbc42bec2097f94eb01dc5b0be19f5e898fa225c891ecd43abf0821c50
[INFO] running `Command { std: "docker" "start" "-a" "561ce6fbc42bec2097f94eb01dc5b0be19f5e898fa225c891ecd43abf0821c50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "561ce6fbc42bec2097f94eb01dc5b0be19f5e898fa225c891ecd43abf0821c50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "561ce6fbc42bec2097f94eb01dc5b0be19f5e898fa225c891ecd43abf0821c50", kill_on_drop: false }`
[INFO] [stdout] 561ce6fbc42bec2097f94eb01dc5b0be19f5e898fa225c891ecd43abf0821c50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 536f42ed68a421a5037b0499baa0013c5a9275d2d44f682555c6186c9d9fb009
[INFO] running `Command { std: "docker" "start" "-a" "536f42ed68a421a5037b0499baa0013c5a9275d2d44f682555c6186c9d9fb009", 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: 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 36.19s
[INFO] running `Command { std: "docker" "inspect" "536f42ed68a421a5037b0499baa0013c5a9275d2d44f682555c6186c9d9fb009", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "536f42ed68a421a5037b0499baa0013c5a9275d2d44f682555c6186c9d9fb009", kill_on_drop: false }`
[INFO] [stdout] 536f42ed68a421a5037b0499baa0013c5a9275d2d44f682555c6186c9d9fb009