[INFO] fetching crate kalgan_i18n 0.9.1...
[INFO] checking kalgan_i18n-0.9.1 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate kalgan_i18n 0.9.1 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate kalgan_i18n 0.9.1
[INFO] finished tweaking crates.io crate kalgan_i18n 0.9.1
[INFO] tweaked toml for crates.io crate kalgan_i18n 0.9.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate kalgan_i18n 0.9.1 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 14 packages to latest compatible versions
[INFO] [stderr]       Adding serde_yaml v0.8.26 (available: v0.9.34+deprecated)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5645483aed4afde0f916f5e9c3179ebe936b2bae59c0bca7f5b28bc8668ae56d
[INFO] running `Command { std: "docker" "start" "-a" "5645483aed4afde0f916f5e9c3179ebe936b2bae59c0bca7f5b28bc8668ae56d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5645483aed4afde0f916f5e9c3179ebe936b2bae59c0bca7f5b28bc8668ae56d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5645483aed4afde0f916f5e9c3179ebe936b2bae59c0bca7f5b28bc8668ae56d", kill_on_drop: false }`
[INFO] [stdout] 5645483aed4afde0f916f5e9c3179ebe936b2bae59c0bca7f5b28bc8668ae56d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 87097f97f3ce308afdad4a0488e0fe1cdf36fabf94f67ce4ff1b75b1fdbbfe6a
[INFO] running `Command { std: "docker" "start" "-a" "87097f97f3ce308afdad4a0488e0fe1cdf36fabf94f67ce4ff1b75b1fdbbfe6a", kill_on_drop: false }`
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking serde_yaml v0.8.26
[INFO] [stderr]     Checking kalgan_i18n v0.9.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/messages.rs:100:20
[INFO] [stdout]     |
[INFO] [stdout] 100 |     for element in map.as_mapping() {
[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] 100 -     for element in map.as_mapping() {
[INFO] [stdout] 100 +     while let Some(element) = map.as_mapping() {
[INFO] [stdout]     |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 100 -     for element in map.as_mapping() {
[INFO] [stdout] 100 +     if let Some(element) = map.as_mapping() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/messages.rs:100:20
[INFO] [stdout]     |
[INFO] [stdout] 100 |     for element in map.as_mapping() {
[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] 100 -     for element in map.as_mapping() {
[INFO] [stdout] 100 +     while let Some(element) = map.as_mapping() {
[INFO] [stdout]     |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 100 -     for element in map.as_mapping() {
[INFO] [stdout] 100 +     if let Some(element) = map.as_mapping() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.45s
[INFO] running `Command { std: "docker" "inspect" "87097f97f3ce308afdad4a0488e0fe1cdf36fabf94f67ce4ff1b75b1fdbbfe6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87097f97f3ce308afdad4a0488e0fe1cdf36fabf94f67ce4ff1b75b1fdbbfe6a", kill_on_drop: false }`
[INFO] [stdout] 87097f97f3ce308afdad4a0488e0fe1cdf36fabf94f67ce4ff1b75b1fdbbfe6a