[INFO] fetching crate cargo-native-install 0.3.0...
[INFO] checking cargo-native-install-0.3.0 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate cargo-native-install 0.3.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate cargo-native-install 0.3.0 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-native-install 0.3.0
[INFO] finished tweaking crates.io crate cargo-native-install 0.3.0
[INFO] tweaked toml for crates.io crate cargo-native-install 0.3.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate cargo-native-install 0.3.0 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.123
[INFO] [stderr]   Downloaded cargo_toml v0.8.1
[INFO] [stderr]   Downloaded which v4.0.2
[INFO] [stderr]   Downloaded home v0.5.3
[INFO] [stderr]   Downloaded thiserror-impl v1.0.23
[INFO] [stderr]   Downloaded thiserror v1.0.23
[INFO] [stderr]   Downloaded install-dirs v0.2.1
[INFO] [stderr]   Downloaded serde v1.0.123
[INFO] [stderr]   Downloaded syn v1.0.60
[INFO] [stderr]   Downloaded libc v0.2.86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f6702919f4ad0077de91c1bfde930c7e23c737fe48e4f1f0ce8163313c0ae9e6
[INFO] running `Command { std: "docker" "start" "-a" "f6702919f4ad0077de91c1bfde930c7e23c737fe48e4f1f0ce8163313c0ae9e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6702919f4ad0077de91c1bfde930c7e23c737fe48e4f1f0ce8163313c0ae9e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6702919f4ad0077de91c1bfde930c7e23c737fe48e4f1f0ce8163313c0ae9e6", kill_on_drop: false }`
[INFO] [stdout] f6702919f4ad0077de91c1bfde930c7e23c737fe48e4f1f0ce8163313c0ae9e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10f2cbfeba0759cfb7a20812756c4b42e06307f1eb530e49e27370613aaf6475
[INFO] running `Command { std: "docker" "start" "-a" "10f2cbfeba0759cfb7a20812756c4b42e06307f1eb530e49e27370613aaf6475", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling cargo-native-install v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking home v0.5.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]     Checking thiserror v1.0.23
[INFO] [stderr]     Checking which v4.0.2
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking install-dirs v0.2.1
[INFO] [stderr]     Checking cargo_toml v0.8.1
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/main.rs:334:20
[INFO] [stdout]     |
[INFO] [stdout] 334 |     for product in &manifest.lib {
[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] 334 |     while let Some(product) = &manifest.lib {
[INFO] [stdout]     |     ~~~~~~~~~~~~~~~       ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 334 |     if let Some(product) = &manifest.lib {
[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/main.rs:334:20
[INFO] [stdout]     |
[INFO] [stdout] 334 |     for product in &manifest.lib {
[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] 334 |     while let Some(product) = &manifest.lib {
[INFO] [stdout]     |     ~~~~~~~~~~~~~~~       ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 334 |     if let Some(product) = &manifest.lib {
[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 14.74s
[INFO] running `Command { std: "docker" "inspect" "10f2cbfeba0759cfb7a20812756c4b42e06307f1eb530e49e27370613aaf6475", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10f2cbfeba0759cfb7a20812756c4b42e06307f1eb530e49e27370613aaf6475", kill_on_drop: false }`
[INFO] [stdout] 10f2cbfeba0759cfb7a20812756c4b42e06307f1eb530e49e27370613aaf6475