[INFO] cloning repository wbowling/rcc
[INFO] running `"git" "clone" "--bare" "git://github.com/wbowling/rcc.git" "work/cache/sources/gh/wbowling/rcc"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/wbowling/rcc'...
[INFO] running `"git" "clone" "work/cache/sources/gh/wbowling/rcc" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/wbowling/rcc"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/wbowling/rcc'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/wbowling/rcc" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/wbowling/rcc"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/wbowling/rcc'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b171df8755d07161c74dd0c688bfdc9b0a9b4f1d
[INFO] sha for GitHub repo wbowling/rcc: b171df8755d07161c74dd0c688bfdc9b0a9b4f1d
[INFO] validating manifest of wbowling/rcc on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of wbowling/rcc on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing wbowling/rcc
[INFO] finished frobbing wbowling/rcc
[INFO] frobbed toml for wbowling/rcc written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/wbowling/rcc/Cargo.toml
[INFO] started frobbing wbowling/rcc
[INFO] finished frobbing wbowling/rcc
[INFO] frobbed toml for wbowling/rcc written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/wbowling/rcc/Cargo.toml
[INFO] crate wbowling/rcc already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded itertools v0.7.5
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking wbowling/rcc against try#8f81d0bf6baf07b92f1246696722485c4ca0b049 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-5/try#8f81d0bf6baf07b92f1246696722485c4ca0b049:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/wbowling/rcc:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c85e443cefbc63d264575df276fdfe03d5265436626cde7489514abd666da369
[INFO] running `"docker" "start" "-a" "c85e443cefbc63d264575df276fdfe03d5265436626cde7489514abd666da369"`
[INFO] [stderr]     Checking itertools v0.7.5
[INFO] [stderr]     Checking rcc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/parser/lex.rs:14:16
[INFO] [stderr]    |
[INFO] [stderr] 14 |             'a'...'z' | 'A'...'Z' => {
[INFO] [stderr]    |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(ellipsis_inclusive_range_patterns)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/parser/lex.rs:14:28
[INFO] [stderr]    |
[INFO] [stderr] 14 |             'a'...'z' | 'A'...'Z' => {
[INFO] [stderr]    |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/parser/lex.rs:26:16
[INFO] [stderr]    |
[INFO] [stderr] 26 |             '0'...'9' => {
[INFO] [stderr]    |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/parser/lex.rs:14:16
[INFO] [stderr]    |
[INFO] [stderr] 14 |             'a'...'z' | 'A'...'Z' => {
[INFO] [stderr]    |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(ellipsis_inclusive_range_patterns)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/parser/lex.rs:14:28
[INFO] [stderr]    |
[INFO] [stderr] 14 |             'a'...'z' | 'A'...'Z' => {
[INFO] [stderr]    |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/parser/lex.rs:26:16
[INFO] [stderr]    |
[INFO] [stderr] 26 |             '0'...'9' => {
[INFO] [stderr]    |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/parser/generate.rs:82:21
[INFO] [stderr]    |
[INFO] [stderr] 82 |                 let mut has_return: bool = statements.iter().any(|s| if let Statement::Return(_) = *s { true } else { false });
[INFO] [stderr]    |                     ----^^^^^^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/parser/generate.rs:82:21
[INFO] [stderr]    |
[INFO] [stderr] 82 |                 let mut has_return: bool = statements.iter().any(|s| if let Statement::Return(_) = *s { true } else { false });
[INFO] [stderr]    |                     ----^^^^^^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.88s
[INFO] running `"docker" "inspect" "c85e443cefbc63d264575df276fdfe03d5265436626cde7489514abd666da369"`
[INFO] running `"docker" "rm" "-f" "c85e443cefbc63d264575df276fdfe03d5265436626cde7489514abd666da369"`
[INFO] [stdout] c85e443cefbc63d264575df276fdfe03d5265436626cde7489514abd666da369