[INFO] crate cryogen 0.1.0 is already in cache
[INFO] extracting crate cryogen 0.1.0 into work/ex/clippy-test-run/sources/stable/reg/cryogen/0.1.0
[INFO] extracting crate cryogen 0.1.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/cryogen/0.1.0
[INFO] validating manifest of cryogen-0.1.0 on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cryogen-0.1.0 on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing cryogen-0.1.0
[INFO] removed path dependency cryogen_plugin_json from cryogen-0.1.0
[INFO] removed path dependency cryogen_plugin_markdown from cryogen-0.1.0
[INFO] removed path dependency cryogen_plugin_yaml from cryogen-0.1.0
[INFO] removed path dependency cryogen_prelude from cryogen-0.1.0
[INFO] finished frobbing cryogen-0.1.0
[INFO] frobbed toml for cryogen-0.1.0 written to work/ex/clippy-test-run/sources/stable/reg/cryogen/0.1.0/Cargo.toml
[INFO] started frobbing cryogen-0.1.0
[INFO] removed path dependency cryogen_plugin_json from cryogen-0.1.0
[INFO] removed path dependency cryogen_plugin_markdown from cryogen-0.1.0
[INFO] removed path dependency cryogen_plugin_yaml from cryogen-0.1.0
[INFO] removed path dependency cryogen_prelude from cryogen-0.1.0
[INFO] finished frobbing cryogen-0.1.0
[INFO] frobbed toml for cryogen-0.1.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/cryogen/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting cryogen-0.1.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-4/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/cryogen/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d1f81de9036c16735f8b5e4a866000b0f52d6b91f79d775561cff6e308a92b8f
[INFO] running `"docker" "start" "-a" "d1f81de9036c16735f8b5e4a866000b0f52d6b91f79d775561cff6e308a92b8f"`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]    Compiling hoedown v6.0.0
[INFO] [stderr]     Checking tera v0.8.1
[INFO] [stderr]     Checking cryogen_prelude v0.1.0
[INFO] [stderr]     Checking cryogen_plugin_yaml v0.1.0
[INFO] [stderr]     Checking cryogen_plugin_json v0.1.0
[INFO] [stderr]     Checking cryogen_plugin_markdown v0.1.0
[INFO] [stderr]     Checking cryogen v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/main.rs:48:9
[INFO] [stderr]    |
[INFO] [stderr] 48 | /         match args.values_of(T::arg_full_name()) {
[INFO] [stderr] 49 | |             Some(mappings) => {
[INFO] [stderr] 50 | |                 for mapping in mappings.map(VarMapping::from_str_panic) {
[INFO] [stderr] 51 | |                     match plugin.read_path(mapping.file_path()) {
[INFO] [stderr] ...  |
[INFO] [stderr] 61 | |             None => (),
[INFO] [stderr] 62 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 48 |         if let Some(mappings) = args.values_of(T::arg_full_name()) {
[INFO] [stderr] 49 |     for mapping in mappings.map(VarMapping::from_str_panic) {
[INFO] [stderr] 50 |         match plugin.read_path(mapping.file_path()) {
[INFO] [stderr] 51 |             Ok(value) => template_vars.add(mapping.var_name(), &value),
[INFO] [stderr] 52 |             Err(e) => {
[INFO] [stderr] 53 |                 panic!(format!("failed to parse file for var ({}): {:?}",
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/main.rs:48:9
[INFO] [stderr]    |
[INFO] [stderr] 48 | /         match args.values_of(T::arg_full_name()) {
[INFO] [stderr] 49 | |             Some(mappings) => {
[INFO] [stderr] 50 | |                 for mapping in mappings.map(VarMapping::from_str_panic) {
[INFO] [stderr] 51 | |                     match plugin.read_path(mapping.file_path()) {
[INFO] [stderr] ...  |
[INFO] [stderr] 61 | |             None => (),
[INFO] [stderr] 62 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 48 |         if let Some(mappings) = args.values_of(T::arg_full_name()) {
[INFO] [stderr] 49 |     for mapping in mappings.map(VarMapping::from_str_panic) {
[INFO] [stderr] 50 |         match plugin.read_path(mapping.file_path()) {
[INFO] [stderr] 51 |             Ok(value) => template_vars.add(mapping.var_name(), &value),
[INFO] [stderr] 52 |             Err(e) => {
[INFO] [stderr] 53 |                 panic!(format!("failed to parse file for var ({}): {:?}",
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.97s
[INFO] running `"docker" "inspect" "d1f81de9036c16735f8b5e4a866000b0f52d6b91f79d775561cff6e308a92b8f"`
[INFO] running `"docker" "rm" "-f" "d1f81de9036c16735f8b5e4a866000b0f52d6b91f79d775561cff6e308a92b8f"`
[INFO] [stdout] d1f81de9036c16735f8b5e4a866000b0f52d6b91f79d775561cff6e308a92b8f