[INFO] updating cached repository darksv/futon
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/darksv/futon
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/darksv/futon" "work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/darksv/futon"`
[INFO] [stderr] Cloning into 'work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/darksv/futon'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/darksv/futon" "work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/darksv/futon"`
[INFO] [stderr] Cloning into 'work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/darksv/futon'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c1641aa859df9f05a202bc5e0d9416009fefa051
[INFO] sha for GitHub repo darksv/futon: c1641aa859df9f05a202bc5e0d9416009fefa051
[INFO] validating manifest of darksv/futon on toolchain master#589beb979c0f1a9736e02e578913db88398c3ba5
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of darksv/futon on toolchain try#42445ded8fd34235a676755cb5d079658ed51f6a
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+42445ded8fd34235a676755cb5d079658ed51f6a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing darksv/futon
[INFO] finished frobbing darksv/futon
[INFO] frobbed toml for darksv/futon written to work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/darksv/futon/Cargo.toml
[INFO] started frobbing darksv/futon
[INFO] finished frobbing darksv/futon
[INFO] frobbed toml for darksv/futon written to work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/darksv/futon/Cargo.toml
[INFO] crate darksv/futon already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+42445ded8fd34235a676755cb5d079658ed51f6a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking darksv/futon against master#589beb979c0f1a9736e02e578913db88398c3ba5 for pr-60944
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60944/worker-1/master#589beb979c0f1a9736e02e578913db88398c3ba5:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/darksv/futon:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 233bdd359ce19f54c327938bc7dbe65358a473b366ff7348e3d76066e3995637
[INFO] running `"docker" "start" "-a" "233bdd359ce19f54c327938bc7dbe65358a473b366ff7348e3d76066e3995637"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Checking untitled v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/lexer.rs:29:1
[INFO] [stderr]    |
[INFO] [stderr] 29 |   /// Registration of keywords supported by language
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 30 | / keywords! {
[INFO] [stderr] 31 | |     "if" => If,
[INFO] [stderr] 32 | |     "else" => Else,
[INFO] [stderr] 33 | |     "for" => For,
[INFO] [stderr] ...  |
[INFO] [stderr] 42 | |     "in" => In
[INFO] [stderr] 43 | | }
[INFO] [stderr]    | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/lexer.rs:29:1
[INFO] [stderr]    |
[INFO] [stderr] 29 |   /// Registration of keywords supported by language
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 30 | / keywords! {
[INFO] [stderr] 31 | |     "if" => If,
[INFO] [stderr] 32 | |     "else" => Else,
[INFO] [stderr] 33 | |     "for" => For,
[INFO] [stderr] ...  |
[INFO] [stderr] 42 | |     "in" => In
[INFO] [stderr] 43 | | }
[INFO] [stderr]    | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `PunctKind`
[INFO] [stderr]    --> src/lexer.rs:540:87
[INFO] [stderr]     |
[INFO] [stderr] 540 |     use super::{Lexer, LexerError, Token, SourceSpan, TokenType, TokenValue, Keyword, PunctKind};
[INFO] [stderr]     |                                                                                       ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_str`
[INFO] [stderr]    --> src/lexer.rs:235:5
[INFO] [stderr]     |
[INFO] [stderr] 235 |     pub fn from_str(str: &'a str, line: usize, column: usize) -> SourceSpan<'a> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.81s
[INFO] running `"docker" "inspect" "233bdd359ce19f54c327938bc7dbe65358a473b366ff7348e3d76066e3995637"`
[INFO] running `"docker" "rm" "-f" "233bdd359ce19f54c327938bc7dbe65358a473b366ff7348e3d76066e3995637"`
[INFO] [stdout] 233bdd359ce19f54c327938bc7dbe65358a473b366ff7348e3d76066e3995637