[INFO] updating cached repository chryslovelace/mixfix
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/chryslovelace/mixfix
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/chryslovelace/mixfix" "work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/chryslovelace/mixfix"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/chryslovelace/mixfix'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/chryslovelace/mixfix" "work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/chryslovelace/mixfix"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/chryslovelace/mixfix'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f87cad659c2c22f8fba54e2198bc83e8fc047956
[INFO] sha for GitHub repo chryslovelace/mixfix: f87cad659c2c22f8fba54e2198bc83e8fc047956
[INFO] validating manifest of chryslovelace/mixfix on toolchain master#a850a426491e14186af2250549bf41256b5938d2
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of chryslovelace/mixfix on toolchain try#06a150c7d11500b41499224f165e9de1de096768
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing chryslovelace/mixfix
[INFO] finished frobbing chryslovelace/mixfix
[INFO] frobbed toml for chryslovelace/mixfix written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/chryslovelace/mixfix/Cargo.toml
[INFO] started frobbing chryslovelace/mixfix
[INFO] finished frobbing chryslovelace/mixfix
[INFO] frobbed toml for chryslovelace/mixfix written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/chryslovelace/mixfix/Cargo.toml
[INFO] crate chryslovelace/mixfix already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking chryslovelace/mixfix against master#a850a426491e14186af2250549bf41256b5938d2 for pr-60162
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-2/master#a850a426491e14186af2250549bf41256b5938d2:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/chryslovelace/mixfix:/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" "+a850a426491e14186af2250549bf41256b5938d2-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 95a4676d69e0f17c23c1e3382d4702352d7461d4aeeefcd0cb458efe95f9cc47
[INFO] running `"docker" "start" "-a" "95a4676d69e0f17c23c1e3382d4702352d7461d4aeeefcd0cb458efe95f9cc47"`
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking mixfix v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `NamePart`
[INFO] [stderr]  --> src/parser.rs:6:16
[INFO] [stderr]   |
[INFO] [stderr] 6 | use operator::{NamePart, Operator};
[INFO] [stderr]   |                ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `NamePart`
[INFO] [stderr]  --> src/parser.rs:6:16
[INFO] [stderr]   |
[INFO] [stderr] 6 | use operator::{NamePart, Operator};
[INFO] [stderr]   |                ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `well_formed`
[INFO] [stderr]   --> src/expr.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn well_formed(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `arity`
[INFO] [stderr]   --> src/operator.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub fn arity(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `UnparsedInput`
[INFO] [stderr]   --> src/parser.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     UnparsedInput(ParseInput<'a>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_expr`
[INFO] [stderr]    --> src/parser.rs:330:1
[INFO] [stderr]     |
[INFO] [stderr] 330 | / pub fn parse_expr<'i, G: PrecedenceGraph>(
[INFO] [stderr] 331 | |     graph: &G,
[INFO] [stderr] 332 | |     tokens: ParseInput<'i>,
[INFO] [stderr] 333 | | ) -> Result<Expr, ParseError<'i>> {
[INFO] [stderr] ...   |
[INFO] [stderr] 339 | |     }
[INFO] [stderr] 340 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.64s
[INFO] running `"docker" "inspect" "95a4676d69e0f17c23c1e3382d4702352d7461d4aeeefcd0cb458efe95f9cc47"`
[INFO] running `"docker" "rm" "-f" "95a4676d69e0f17c23c1e3382d4702352d7461d4aeeefcd0cb458efe95f9cc47"`
[INFO] [stdout] 95a4676d69e0f17c23c1e3382d4702352d7461d4aeeefcd0cb458efe95f9cc47