Dec 19 21:54:16.827 INFO checking Shyclops/calculator against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 21:54:16.827 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-4/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/Shyclops/calculator:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 21:54:17.227 INFO [stdout] 36bd04ef67e3431ebd12f63dcd9a18293b69d0a2e9840abf5625a41819fa3bbd
Dec 19 21:54:17.229 INFO running `"docker" "start" "-a" "36bd04ef67e3431ebd12f63dcd9a18293b69d0a2e9840abf5625a41819fa3bbd"`
Dec 19 21:54:19.302 INFO [stderr]     Checking calculator v0.1.0 (/opt/crater/workdir)
Dec 19 21:54:19.772 INFO [stderr] warning: unused variable: `operators`
Dec 19 21:54:19.772 INFO [stderr]   --> src/reverse_polish_notation/parser.rs:17:10
Dec 19 21:54:19.772 INFO [stderr]    |
Dec 19 21:54:19.772 INFO [stderr] 17 |     let mut operators: Vec<Expression> = Vec::new();
Dec 19 21:54:19.772 INFO [stderr]    |             ^^^^^^^^^ help: consider using `_operators` instead
Dec 19 21:54:19.772 INFO [stderr]    |
Dec 19 21:54:19.772 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 21:54:19.772 INFO [stderr] 
Dec 19 21:54:19.773 INFO [stderr] warning: unused variable: `o`
Dec 19 21:54:19.773 INFO [stderr]   --> src/reverse_polish_notation/parser.rs:21:25
Dec 19 21:54:19.773 INFO [stderr]    |
Dec 19 21:54:19.773 INFO [stderr] 21 |             Expression::Operator(o)    => {},
Dec 19 21:54:19.773 INFO [stderr]    |                                  ^ help: consider using `_o` instead
Dec 19 21:54:19.773 INFO [stderr] 
Dec 19 21:54:19.773 INFO [stderr] warning: unused variable: `v`
Dec 19 21:54:19.773 INFO [stderr]   --> src/reverse_polish_notation/parser.rs:22:20
Dec 19 21:54:19.773 INFO [stderr]    |
Dec 19 21:54:19.773 INFO [stderr] 22 |             Expression::Val(v)        => output.push(ex),
Dec 19 21:54:19.773 INFO [stderr]    |                             ^ help: consider using `_v` instead
Dec 19 21:54:19.773 INFO [stderr] 
Dec 19 21:54:19.773 INFO [stderr] warning: unused variable: `operator`
Dec 19 21:54:19.773 INFO [stderr]   --> src/reverse_polish_notation/parser.rs:82:19
Dec 19 21:54:19.773 INFO [stderr]    |
Dec 19 21:54:19.773 INFO [stderr] 82 | fn get_precedence(operator: String) -> i8 {
Dec 19 21:54:19.773 INFO [stderr]    |                   ^^^^^^^^ help: consider using `_operator` instead
Dec 19 21:54:19.773 INFO [stderr] 
Dec 19 21:54:19.776 INFO [stderr] warning: variable does not need to be mutable
Dec 19 21:54:19.776 INFO [stderr]   --> src/reverse_polish_notation/parser.rs:17:6
Dec 19 21:54:19.776 INFO [stderr]    |
Dec 19 21:54:19.776 INFO [stderr] 17 |     let mut operators: Vec<Expression> = Vec::new();
Dec 19 21:54:19.777 INFO [stderr]    |         ----^^^^^^^^^
Dec 19 21:54:19.777 INFO [stderr]    |         |
Dec 19 21:54:19.777 INFO [stderr]    |         help: remove this `mut`
Dec 19 21:54:19.777 INFO [stderr]    |
Dec 19 21:54:19.777 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 21:54:19.777 INFO [stderr] 
Dec 19 21:54:19.777 INFO [stderr] warning: function is never used: `get_precedence`
Dec 19 21:54:19.778 INFO [stderr]   --> src/reverse_polish_notation/parser.rs:82:1
Dec 19 21:54:19.778 INFO [stderr]    |
Dec 19 21:54:19.778 INFO [stderr] 82 | fn get_precedence(operator: String) -> i8 {
Dec 19 21:54:19.778 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:54:19.778 INFO [stderr]    |
Dec 19 21:54:19.778 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 21:54:19.778 INFO [stderr] 
Dec 19 21:54:19.888 INFO [stderr] warning: unused variable: `operators`
Dec 19 21:54:19.888 INFO [stderr]   --> src/reverse_polish_notation/parser.rs:17:10
Dec 19 21:54:19.888 INFO [stderr]    |
Dec 19 21:54:19.888 INFO [stderr] 17 |     let mut operators: Vec<Expression> = Vec::new();
Dec 19 21:54:19.888 INFO [stderr]    |             ^^^^^^^^^ help: consider using `_operators` instead
Dec 19 21:54:19.888 INFO [stderr]    |
Dec 19 21:54:19.888 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 21:54:19.888 INFO [stderr] 
Dec 19 21:54:19.888 INFO [stderr] warning: unused variable: `o`
Dec 19 21:54:19.889 INFO [stderr]   --> src/reverse_polish_notation/parser.rs:21:25
Dec 19 21:54:19.889 INFO [stderr]    |
Dec 19 21:54:19.889 INFO [stderr] 21 |             Expression::Operator(o)    => {},
Dec 19 21:54:19.889 INFO [stderr]    |                                  ^ help: consider using `_o` instead
Dec 19 21:54:19.889 INFO [stderr] 
Dec 19 21:54:19.889 INFO [stderr] warning: unused variable: `v`
Dec 19 21:54:19.889 INFO [stderr]   --> src/reverse_polish_notation/parser.rs:22:20
Dec 19 21:54:19.889 INFO [stderr]    |
Dec 19 21:54:19.889 INFO [stderr] 22 |             Expression::Val(v)        => output.push(ex),
Dec 19 21:54:19.889 INFO [stderr]    |                             ^ help: consider using `_v` instead
Dec 19 21:54:19.889 INFO [stderr] 
Dec 19 21:54:19.889 INFO [stderr] warning: unused variable: `operator`
Dec 19 21:54:19.889 INFO [stderr]   --> src/reverse_polish_notation/parser.rs:82:19
Dec 19 21:54:19.889 INFO [stderr]    |
Dec 19 21:54:19.889 INFO [stderr] 82 | fn get_precedence(operator: String) -> i8 {
Dec 19 21:54:19.889 INFO [stderr]    |                   ^^^^^^^^ help: consider using `_operator` instead
Dec 19 21:54:19.889 INFO [stderr] 
Dec 19 21:54:19.896 INFO [stderr] warning: variable does not need to be mutable
Dec 19 21:54:19.896 INFO [stderr]   --> src/reverse_polish_notation/parser.rs:17:6
Dec 19 21:54:19.896 INFO [stderr]    |
Dec 19 21:54:19.896 INFO [stderr] 17 |     let mut operators: Vec<Expression> = Vec::new();
Dec 19 21:54:19.896 INFO [stderr]    |         ----^^^^^^^^^
Dec 19 21:54:19.896 INFO [stderr]    |         |
Dec 19 21:54:19.896 INFO [stderr]    |         help: remove this `mut`
Dec 19 21:54:19.896 INFO [stderr]    |
Dec 19 21:54:19.896 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 21:54:19.896 INFO [stderr] 
Dec 19 21:54:19.911 INFO [stderr] warning: function is never used: `get_precedence`
Dec 19 21:54:19.911 INFO [stderr]   --> src/reverse_polish_notation/parser.rs:82:1
Dec 19 21:54:19.911 INFO [stderr]    |
Dec 19 21:54:19.911 INFO [stderr] 82 | fn get_precedence(operator: String) -> i8 {
Dec 19 21:54:19.911 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:54:19.912 INFO [stderr]    |
Dec 19 21:54:19.912 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 21:54:19.912 INFO [stderr] 
Dec 19 21:54:20.361 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
Dec 19 21:54:21.596 INFO running `"docker" "inspect" "36bd04ef67e3431ebd12f63dcd9a18293b69d0a2e9840abf5625a41819fa3bbd"`
Dec 19 21:54:21.862 INFO running `"docker" "rm" "-f" "36bd04ef67e3431ebd12f63dcd9a18293b69d0a2e9840abf5625a41819fa3bbd"`
Dec 19 21:54:22.156 INFO [stdout] 36bd04ef67e3431ebd12f63dcd9a18293b69d0a2e9840abf5625a41819fa3bbd