[INFO] cloning repository owainlewis/rsc
[INFO] running `"git" "clone" "--bare" "git://github.com/owainlewis/rsc.git" "work/cache/sources/gh/owainlewis/rsc"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/owainlewis/rsc'...
[INFO] running `"git" "clone" "work/cache/sources/gh/owainlewis/rsc" "work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/owainlewis/rsc"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/owainlewis/rsc'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/owainlewis/rsc" "work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/owainlewis/rsc"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/owainlewis/rsc'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ab09fadcbead42ab1c85177f0e77781a35273426
[INFO] sha for GitHub repo owainlewis/rsc: ab09fadcbead42ab1c85177f0e77781a35273426
[INFO] validating manifest of owainlewis/rsc on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of owainlewis/rsc on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing owainlewis/rsc
[INFO] finished frobbing owainlewis/rsc
[INFO] frobbed toml for owainlewis/rsc written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/owainlewis/rsc/Cargo.toml
[INFO] started frobbing owainlewis/rsc
[INFO] finished frobbing owainlewis/rsc
[INFO] frobbed toml for owainlewis/rsc written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/owainlewis/rsc/Cargo.toml
[INFO] crate owainlewis/rsc already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking owainlewis/rsc against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-3/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/owainlewis/rsc:/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" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0f4cb1ea8d4c180be7c6c7b904044d85028c49ce21ab73569aec54bb877ac670
[INFO] running `"docker" "start" "-a" "0f4cb1ea8d4c180be7c6c7b904044d85028c49ce21ab73569aec54bb877ac670"`
[INFO] [stderr]     Checking rsc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/lexer.rs:66:21
[INFO] [stderr]    |
[INFO] [stderr] 66 |                     /// Ignore whitespace
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 67 |                     self.advance(1);
[INFO] [stderr]    |                     --------------- rustdoc does not generate documentation for expressions
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/lexer.rs:66:21
[INFO] [stderr]    |
[INFO] [stderr] 66 |                     /// Ignore whitespace
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 67 |                     self.advance(1);
[INFO] [stderr]    |                     --------------- rustdoc does not generate documentation for expressions
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/lexer.rs:63:27
[INFO] [stderr]    |
[INFO] [stderr] 63 |                 '-' | '0' ... '9' => lex_number(&self.input),
[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/lexer.rs:64:21
[INFO] [stderr]    |
[INFO] [stderr] 64 |                 'a' ... 'z' => lex_identifier(&self.input),
[INFO] [stderr]    |                     ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/lexer.rs:92:16
[INFO] [stderr]    |
[INFO] [stderr] 92 |            '0' ... '9' => {
[INFO] [stderr]    |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/lexer.rs:63:27
[INFO] [stderr]    |
[INFO] [stderr] 63 |                 '-' | '0' ... '9' => lex_number(&self.input),
[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/lexer.rs:64:21
[INFO] [stderr]    |
[INFO] [stderr] 64 |                 'a' ... 'z' => lex_identifier(&self.input),
[INFO] [stderr]    |                     ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/lexer.rs:92:16
[INFO] [stderr]    |
[INFO] [stderr] 92 |            '0' ... '9' => {
[INFO] [stderr]    |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ind`
[INFO] [stderr]   --> src/lexer.rs:90:10
[INFO] [stderr]    |
[INFO] [stderr] 90 |     for (ind, ch) in input.char_indices() {
[INFO] [stderr]    |          ^^^ help: consider prefixing with an underscore: `_ind`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ind`
[INFO] [stderr]    --> src/lexer.rs:104:10
[INFO] [stderr]     |
[INFO] [stderr] 104 |     for (ind, ch) in input.char_indices() {
[INFO] [stderr]     |          ^^^ help: consider prefixing with an underscore: `_ind`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `size`
[INFO] [stderr]   --> src/lexer.rs:46:30
[INFO] [stderr]    |
[INFO] [stderr] 46 |         while let Ok((token, size)) = self.
[INFO] [stderr]    |                              ^^^^ help: consider prefixing with an underscore: `_size`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> src/lexer.rs:70:17
[INFO] [stderr]    |
[INFO] [stderr] 70 |                 c => {
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ind`
[INFO] [stderr]   --> src/lexer.rs:90:10
[INFO] [stderr]    |
[INFO] [stderr] 90 |     for (ind, ch) in input.char_indices() {
[INFO] [stderr]    |          ^^^ help: consider prefixing with an underscore: `_ind`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ind`
[INFO] [stderr]    --> src/lexer.rs:104:10
[INFO] [stderr]     |
[INFO] [stderr] 104 |     for (ind, ch) in input.char_indices() {
[INFO] [stderr]     |          ^^^ help: consider prefixing with an underscore: `_ind`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `size`
[INFO] [stderr]   --> src/lexer.rs:46:30
[INFO] [stderr]    |
[INFO] [stderr] 46 |         while let Ok((token, size)) = self.
[INFO] [stderr]    |                              ^^^^ help: consider prefixing with an underscore: `_size`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> src/lexer.rs:70:17
[INFO] [stderr]    |
[INFO] [stderr] 70 |                 c => {
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] error[E0499]: cannot borrow `*self` as mutable more than once at a time
[INFO] [stderr]   --> src/lexer.rs:46:39
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub fn tokens(&mut self) -> Vec<Token> {
[INFO] [stderr]    |                   - let's call the lifetime of this reference `'1`
[INFO] [stderr] 45 |         let mut tokens = Vec::new();
[INFO] [stderr] 46 |         while let Ok((token, size)) = self.
[INFO] [stderr]    |                                       ^^^^ mutable borrow starts here in previous iteration of loop
[INFO] [stderr] ...
[INFO] [stderr] 54 |         return tokens
[INFO] [stderr]    |                ------ returning this value requires that `*self` is borrowed for `'1`
[INFO] [stderr] 
[INFO] [stderr] error[E0499]: cannot borrow `*self` as mutable more than once at a time
[INFO] [stderr]   --> src/lexer.rs:46:39
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub fn tokens(&mut self) -> Vec<Token> {
[INFO] [stderr]    |                   - let's call the lifetime of this reference `'1`
[INFO] [stderr] 45 |         let mut tokens = Vec::new();
[INFO] [stderr] 46 |         while let Ok((token, size)) = self.
[INFO] [stderr]    |                                       ^^^^ mutable borrow starts here in previous iteration of loop
[INFO] [stderr] ...
[INFO] [stderr] 54 |         return tokens
[INFO] [stderr]    |                ------ returning this value requires that `*self` is borrowed for `'1`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0499`.
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0499`.
[INFO] [stderr] error: Could not compile `rsc`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: Could not compile `rsc`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "0f4cb1ea8d4c180be7c6c7b904044d85028c49ce21ab73569aec54bb877ac670"`
[INFO] running `"docker" "rm" "-f" "0f4cb1ea8d4c180be7c6c7b904044d85028c49ce21ab73569aec54bb877ac670"`
[INFO] [stdout] 0f4cb1ea8d4c180be7c6c7b904044d85028c49ce21ab73569aec54bb877ac670