Dec 14 16:52:56.045 INFO testing timi-0.2.1 against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 14 16:52:56.045 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 14 16:52:56.272 INFO [stdout] fd5c1a45003a60a81d9b8f6dc5f77f210bd2fd5ad801c8f943c43e4ec67a8fac
Dec 14 16:52:56.274 INFO running `"docker" "start" "-a" "fd5c1a45003a60a81d9b8f6dc5f77f210bd2fd5ad801c8f943c43e4ec67a8fac"`
Dec 14 16:52:56.803 INFO [stderr] usermod: no changes
Dec 14 16:52:56.879 INFO [stderr]    Compiling memchr v1.0.2
Dec 14 16:52:56.879 INFO [stderr]    Compiling nix v0.5.1
Dec 14 16:52:57.899 INFO [stderr]    Compiling csv v0.15.0
Dec 14 16:53:00.551 INFO [stderr]    Compiling prettytable-rs v0.6.7
Dec 14 16:53:03.682 INFO [stderr]    Compiling rustyline v1.0.0
Dec 14 16:53:06.083 INFO [stderr]    Compiling timi v0.2.1 (/source)
Dec 14 16:53:07.591 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 14 16:53:07.591 INFO [stderr]     --> src/machine.rs:1507:16
Dec 14 16:53:07.591 INFO [stderr]      |
Dec 14 16:53:07.591 INFO [stderr] 1507 |             Ok((ListAccess::Cons(x_addr, xs_addr)))
Dec 14 16:53:07.591 INFO [stderr]      |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 14 16:53:07.591 INFO [stderr]      |
Dec 14 16:53:07.591 INFO [stderr]      = note: #[warn(unused_parens)] on by default
Dec 14 16:53:07.591 INFO [stderr] 
Dec 14 16:53:08.181 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:08.181 INFO [stderr]    --> src/frontend.rs:567:21
Dec 14 16:53:08.181 INFO [stderr]     |
Dec 14 16:53:08.181 INFO [stderr] 567 | fn parse_identifier(mut cursor: &mut TokenizerCursor) -> Result<(Range, CoreToken), ParseError> {
Dec 14 16:53:08.181 INFO [stderr]     |                     ----^^^^^^
Dec 14 16:53:08.181 INFO [stderr]     |                     |
Dec 14 16:53:08.181 INFO [stderr]     |                     help: remove this `mut`
Dec 14 16:53:08.181 INFO [stderr]     |
Dec 14 16:53:08.181 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 14 16:53:08.181 INFO [stderr] 
Dec 14 16:53:08.191 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:08.191 INFO [stderr]    --> src/frontend.rs:749:15
Dec 14 16:53:08.192 INFO [stderr]     |
Dec 14 16:53:08.192 INFO [stderr] 749 | fn parse_pack(mut c: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
Dec 14 16:53:08.192 INFO [stderr]     |               ----^
Dec 14 16:53:08.192 INFO [stderr]     |               |
Dec 14 16:53:08.192 INFO [stderr]     |               help: remove this `mut`
Dec 14 16:53:08.192 INFO [stderr] 
Dec 14 16:53:08.198 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:08.198 INFO [stderr]    --> src/frontend.rs:893:18
Dec 14 16:53:08.198 INFO [stderr]     |
Dec 14 16:53:08.198 INFO [stderr] 893 | fn parse_mul_div(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
Dec 14 16:53:08.198 INFO [stderr]     |                  ----^^^^^^
Dec 14 16:53:08.198 INFO [stderr]     |                  |
Dec 14 16:53:08.198 INFO [stderr]     |                  help: remove this `mut`
Dec 14 16:53:08.198 INFO [stderr] 
Dec 14 16:53:08.199 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:08.199 INFO [stderr]    --> src/frontend.rs:906:18
Dec 14 16:53:08.199 INFO [stderr]     |
Dec 14 16:53:08.199 INFO [stderr] 906 | fn parse_add_sub(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
Dec 14 16:53:08.199 INFO [stderr]     |                  ----^^^^^^
Dec 14 16:53:08.199 INFO [stderr]     |                  |
Dec 14 16:53:08.199 INFO [stderr]     |                  help: remove this `mut`
Dec 14 16:53:08.199 INFO [stderr] 
Dec 14 16:53:08.200 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:08.200 INFO [stderr]    --> src/frontend.rs:919:16
Dec 14 16:53:08.200 INFO [stderr]     |
Dec 14 16:53:08.200 INFO [stderr] 919 | fn parse_relop(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
Dec 14 16:53:08.200 INFO [stderr]     |                ----^^^^^^
Dec 14 16:53:08.200 INFO [stderr]     |                |
Dec 14 16:53:08.200 INFO [stderr]     |                help: remove this `mut`
Dec 14 16:53:08.200 INFO [stderr] 
Dec 14 16:53:08.201 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:08.201 INFO [stderr]    --> src/frontend.rs:938:14
Dec 14 16:53:08.201 INFO [stderr]     |
Dec 14 16:53:08.201 INFO [stderr] 938 | fn parse_and(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
Dec 14 16:53:08.201 INFO [stderr]     |              ----^^^^^^
Dec 14 16:53:08.201 INFO [stderr]     |              |
Dec 14 16:53:08.201 INFO [stderr]     |              help: remove this `mut`
Dec 14 16:53:08.201 INFO [stderr] 
Dec 14 16:53:08.202 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:08.202 INFO [stderr]    --> src/frontend.rs:950:13
Dec 14 16:53:08.202 INFO [stderr]     |
Dec 14 16:53:08.202 INFO [stderr] 950 | fn parse_or(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
Dec 14 16:53:08.202 INFO [stderr]     |             ----^^^^^^
Dec 14 16:53:08.202 INFO [stderr]     |             |
Dec 14 16:53:08.202 INFO [stderr]     |             help: remove this `mut`
Dec 14 16:53:08.202 INFO [stderr] 
Dec 14 16:53:08.231 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:08.231 INFO [stderr]   --> src/pretty_print.rs:82:32
Dec 14 16:53:08.231 INFO [stderr]    |
Dec 14 16:53:08.231 INFO [stderr] 82 |                                mut processed: &mut HashSet<Addr>,
Dec 14 16:53:08.231 INFO [stderr]    |                                ----^^^^^^^^^
Dec 14 16:53:08.231 INFO [stderr]    |                                |
Dec 14 16:53:08.231 INFO [stderr]    |                                help: remove this `mut`
Dec 14 16:53:08.231 INFO [stderr] 
Dec 14 16:53:08.231 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:08.231 INFO [stderr]   --> src/pretty_print.rs:83:32
Dec 14 16:53:08.231 INFO [stderr]    |
Dec 14 16:53:08.231 INFO [stderr] 83 |                                mut rec_stack: &mut HashSet<Addr>) -> bool {
Dec 14 16:53:08.231 INFO [stderr]    |                                ----^^^^^^^^^
Dec 14 16:53:08.231 INFO [stderr]    |                                |
Dec 14 16:53:08.231 INFO [stderr]    |                                help: remove this `mut`
Dec 14 16:53:08.231 INFO [stderr] 
Dec 14 16:53:13.499 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 14 16:53:13.499 INFO [stderr]     --> src/machine.rs:1507:16
Dec 14 16:53:13.499 INFO [stderr]      |
Dec 14 16:53:13.499 INFO [stderr] 1507 |             Ok((ListAccess::Cons(x_addr, xs_addr)))
Dec 14 16:53:13.499 INFO [stderr]      |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 14 16:53:13.499 INFO [stderr]      |
Dec 14 16:53:13.499 INFO [stderr]      = note: #[warn(unused_parens)] on by default
Dec 14 16:53:13.499 INFO [stderr] 
Dec 14 16:53:14.030 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:14.030 INFO [stderr]    --> src/frontend.rs:567:21
Dec 14 16:53:14.030 INFO [stderr]     |
Dec 14 16:53:14.030 INFO [stderr] 567 | fn parse_identifier(mut cursor: &mut TokenizerCursor) -> Result<(Range, CoreToken), ParseError> {
Dec 14 16:53:14.030 INFO [stderr]     |                     ----^^^^^^
Dec 14 16:53:14.030 INFO [stderr]     |                     |
Dec 14 16:53:14.030 INFO [stderr]     |                     help: remove this `mut`
Dec 14 16:53:14.030 INFO [stderr]     |
Dec 14 16:53:14.030 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 14 16:53:14.030 INFO [stderr] 
Dec 14 16:53:14.041 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:14.041 INFO [stderr]    --> src/frontend.rs:749:15
Dec 14 16:53:14.041 INFO [stderr]     |
Dec 14 16:53:14.041 INFO [stderr] 749 | fn parse_pack(mut c: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
Dec 14 16:53:14.041 INFO [stderr]     |               ----^
Dec 14 16:53:14.041 INFO [stderr]     |               |
Dec 14 16:53:14.041 INFO [stderr]     |               help: remove this `mut`
Dec 14 16:53:14.041 INFO [stderr] 
Dec 14 16:53:14.048 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:14.048 INFO [stderr]    --> src/frontend.rs:893:18
Dec 14 16:53:14.048 INFO [stderr]     |
Dec 14 16:53:14.048 INFO [stderr] 893 | fn parse_mul_div(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
Dec 14 16:53:14.048 INFO [stderr]     |                  ----^^^^^^
Dec 14 16:53:14.048 INFO [stderr]     |                  |
Dec 14 16:53:14.048 INFO [stderr]     |                  help: remove this `mut`
Dec 14 16:53:14.048 INFO [stderr] 
Dec 14 16:53:14.049 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:14.049 INFO [stderr]    --> src/frontend.rs:906:18
Dec 14 16:53:14.049 INFO [stderr]     |
Dec 14 16:53:14.049 INFO [stderr] 906 | fn parse_add_sub(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
Dec 14 16:53:14.049 INFO [stderr]     |                  ----^^^^^^
Dec 14 16:53:14.049 INFO [stderr]     |                  |
Dec 14 16:53:14.049 INFO [stderr]     |                  help: remove this `mut`
Dec 14 16:53:14.049 INFO [stderr] 
Dec 14 16:53:14.050 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:14.050 INFO [stderr]    --> src/frontend.rs:919:16
Dec 14 16:53:14.050 INFO [stderr]     |
Dec 14 16:53:14.050 INFO [stderr] 919 | fn parse_relop(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
Dec 14 16:53:14.050 INFO [stderr]     |                ----^^^^^^
Dec 14 16:53:14.050 INFO [stderr]     |                |
Dec 14 16:53:14.050 INFO [stderr]     |                help: remove this `mut`
Dec 14 16:53:14.050 INFO [stderr] 
Dec 14 16:53:14.051 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:14.051 INFO [stderr]    --> src/frontend.rs:938:14
Dec 14 16:53:14.051 INFO [stderr]     |
Dec 14 16:53:14.051 INFO [stderr] 938 | fn parse_and(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
Dec 14 16:53:14.051 INFO [stderr]     |              ----^^^^^^
Dec 14 16:53:14.051 INFO [stderr]     |              |
Dec 14 16:53:14.051 INFO [stderr]     |              help: remove this `mut`
Dec 14 16:53:14.051 INFO [stderr] 
Dec 14 16:53:14.051 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:14.051 INFO [stderr]    --> src/frontend.rs:950:13
Dec 14 16:53:14.051 INFO [stderr]     |
Dec 14 16:53:14.051 INFO [stderr] 950 | fn parse_or(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
Dec 14 16:53:14.051 INFO [stderr]     |             ----^^^^^^
Dec 14 16:53:14.051 INFO [stderr]     |             |
Dec 14 16:53:14.051 INFO [stderr]     |             help: remove this `mut`
Dec 14 16:53:14.051 INFO [stderr] 
Dec 14 16:53:14.170 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:14.170 INFO [stderr]   --> src/pretty_print.rs:82:32
Dec 14 16:53:14.170 INFO [stderr]    |
Dec 14 16:53:14.170 INFO [stderr] 82 |                                mut processed: &mut HashSet<Addr>,
Dec 14 16:53:14.170 INFO [stderr]    |                                ----^^^^^^^^^
Dec 14 16:53:14.170 INFO [stderr]    |                                |
Dec 14 16:53:14.170 INFO [stderr]    |                                help: remove this `mut`
Dec 14 16:53:14.170 INFO [stderr] 
Dec 14 16:53:14.170 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:14.170 INFO [stderr]   --> src/pretty_print.rs:83:32
Dec 14 16:53:14.170 INFO [stderr]    |
Dec 14 16:53:14.170 INFO [stderr] 83 |                                mut rec_stack: &mut HashSet<Addr>) -> bool {
Dec 14 16:53:14.170 INFO [stderr]    |                                ----^^^^^^^^^
Dec 14 16:53:14.170 INFO [stderr]    |                                |
Dec 14 16:53:14.170 INFO [stderr]    |                                help: remove this `mut`
Dec 14 16:53:14.170 INFO [stderr] 
Dec 14 16:53:18.343 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.52s
Dec 14 16:53:18.349 INFO [stderr] su: No module specific data is present
Dec 14 16:53:18.744 INFO running `"docker" "inspect" "fd5c1a45003a60a81d9b8f6dc5f77f210bd2fd5ad801c8f943c43e4ec67a8fac"`
Dec 14 16:53:19.033 INFO running `"docker" "rm" "-f" "fd5c1a45003a60a81d9b8f6dc5f77f210bd2fd5ad801c8f943c43e4ec67a8fac"`
Dec 14 16:53:19.291 INFO [stdout] fd5c1a45003a60a81d9b8f6dc5f77f210bd2fd5ad801c8f943c43e4ec67a8fac
Dec 14 16:53:19.293 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 14 16:53:19.615 INFO [stdout] ce53a767a6c5b3f1ad0451c96f48607de4828ddd93ee504ae2d79bdf07ad6c52
Dec 14 16:53:19.619 INFO running `"docker" "start" "-a" "ce53a767a6c5b3f1ad0451c96f48607de4828ddd93ee504ae2d79bdf07ad6c52"`
Dec 14 16:53:20.922 INFO [stderr] usermod: no changes
Dec 14 16:53:21.083 INFO [stderr]    Compiling timi v0.2.1 (/source)
Dec 14 16:53:23.627 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 14 16:53:23.627 INFO [stderr]     --> src/machine.rs:1507:16
Dec 14 16:53:23.627 INFO [stderr]      |
Dec 14 16:53:23.627 INFO [stderr] 1507 |             Ok((ListAccess::Cons(x_addr, xs_addr)))
Dec 14 16:53:23.627 INFO [stderr]      |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 14 16:53:23.627 INFO [stderr]      |
Dec 14 16:53:23.627 INFO [stderr]      = note: #[warn(unused_parens)] on by default
Dec 14 16:53:23.627 INFO [stderr] 
Dec 14 16:53:23.892 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 14 16:53:23.892 INFO [stderr]     --> src/machine.rs:1507:16
Dec 14 16:53:23.892 INFO [stderr]      |
Dec 14 16:53:23.892 INFO [stderr] 1507 |             Ok((ListAccess::Cons(x_addr, xs_addr)))
Dec 14 16:53:23.892 INFO [stderr]      |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 14 16:53:23.892 INFO [stderr]      |
Dec 14 16:53:23.892 INFO [stderr]      = note: #[warn(unused_parens)] on by default
Dec 14 16:53:23.892 INFO [stderr] 
Dec 14 16:53:24.459 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:24.459 INFO [stderr]    --> src/frontend.rs:567:21
Dec 14 16:53:24.459 INFO [stderr]     |
Dec 14 16:53:24.459 INFO [stderr] 567 | fn parse_identifier(mut cursor: &mut TokenizerCursor) -> Result<(Range, CoreToken), ParseError> {
Dec 14 16:53:24.459 INFO [stderr]     |                     ----^^^^^^
Dec 14 16:53:24.459 INFO [stderr]     |                     |
Dec 14 16:53:24.459 INFO [stderr]     |                     help: remove this `mut`
Dec 14 16:53:24.459 INFO [stderr]     |
Dec 14 16:53:24.459 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 14 16:53:24.459 INFO [stderr] 
Dec 14 16:53:24.463 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:24.463 INFO [stderr]    --> src/frontend.rs:749:15
Dec 14 16:53:24.463 INFO [stderr]     |
Dec 14 16:53:24.463 INFO [stderr] 749 | fn parse_pack(mut c: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
Dec 14 16:53:24.463 INFO [stderr]     |               ----^
Dec 14 16:53:24.463 INFO [stderr]     |               |
Dec 14 16:53:24.463 INFO [stderr]     |               help: remove this `mut`
Dec 14 16:53:24.463 INFO [stderr] 
Dec 14 16:53:24.467 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:24.467 INFO [stderr]    --> src/frontend.rs:893:18
Dec 14 16:53:24.467 INFO [stderr]     |
Dec 14 16:53:24.467 INFO [stderr] 893 | fn parse_mul_div(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
Dec 14 16:53:24.467 INFO [stderr]     |                  ----^^^^^^
Dec 14 16:53:24.467 INFO [stderr]     |                  |
Dec 14 16:53:24.467 INFO [stderr]     |                  help: remove this `mut`
Dec 14 16:53:24.467 INFO [stderr] 
Dec 14 16:53:24.471 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:24.471 INFO [stderr]    --> src/frontend.rs:906:18
Dec 14 16:53:24.471 INFO [stderr]     |
Dec 14 16:53:24.471 INFO [stderr] 906 | fn parse_add_sub(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
Dec 14 16:53:24.471 INFO [stderr]     |                  ----^^^^^^
Dec 14 16:53:24.471 INFO [stderr]     |                  |
Dec 14 16:53:24.471 INFO [stderr]     |                  help: remove this `mut`
Dec 14 16:53:24.471 INFO [stderr] 
Dec 14 16:53:24.471 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:24.471 INFO [stderr]    --> src/frontend.rs:919:16
Dec 14 16:53:24.471 INFO [stderr]     |
Dec 14 16:53:24.471 INFO [stderr] 919 | fn parse_relop(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
Dec 14 16:53:24.471 INFO [stderr]     |                ----^^^^^^
Dec 14 16:53:24.471 INFO [stderr]     |                |
Dec 14 16:53:24.471 INFO [stderr]     |                help: remove this `mut`
Dec 14 16:53:24.471 INFO [stderr] 
Dec 14 16:53:24.471 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:24.471 INFO [stderr]    --> src/frontend.rs:938:14
Dec 14 16:53:24.471 INFO [stderr]     |
Dec 14 16:53:24.471 INFO [stderr] 938 | fn parse_and(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
Dec 14 16:53:24.471 INFO [stderr]     |              ----^^^^^^
Dec 14 16:53:24.471 INFO [stderr]     |              |
Dec 14 16:53:24.471 INFO [stderr]     |              help: remove this `mut`
Dec 14 16:53:24.471 INFO [stderr] 
Dec 14 16:53:24.471 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:24.471 INFO [stderr]    --> src/frontend.rs:950:13
Dec 14 16:53:24.471 INFO [stderr]     |
Dec 14 16:53:24.471 INFO [stderr] 950 | fn parse_or(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
Dec 14 16:53:24.471 INFO [stderr]     |             ----^^^^^^
Dec 14 16:53:24.471 INFO [stderr]     |             |
Dec 14 16:53:24.471 INFO [stderr]     |             help: remove this `mut`
Dec 14 16:53:24.471 INFO [stderr] 
Dec 14 16:53:24.519 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:24.519 INFO [stderr]   --> src/pretty_print.rs:82:32
Dec 14 16:53:24.519 INFO [stderr]    |
Dec 14 16:53:24.519 INFO [stderr] 82 |                                mut processed: &mut HashSet<Addr>,
Dec 14 16:53:24.519 INFO [stderr]    |                                ----^^^^^^^^^
Dec 14 16:53:24.519 INFO [stderr]    |                                |
Dec 14 16:53:24.519 INFO [stderr]    |                                help: remove this `mut`
Dec 14 16:53:24.519 INFO [stderr] 
Dec 14 16:53:24.519 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:24.519 INFO [stderr]   --> src/pretty_print.rs:83:32
Dec 14 16:53:24.519 INFO [stderr]    |
Dec 14 16:53:24.519 INFO [stderr] 83 |                                mut rec_stack: &mut HashSet<Addr>) -> bool {
Dec 14 16:53:24.519 INFO [stderr]    |                                ----^^^^^^^^^
Dec 14 16:53:24.519 INFO [stderr]    |                                |
Dec 14 16:53:24.519 INFO [stderr]    |                                help: remove this `mut`
Dec 14 16:53:24.519 INFO [stderr] 
Dec 14 16:53:24.539 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:24.539 INFO [stderr]    --> src/frontend.rs:567:21
Dec 14 16:53:24.539 INFO [stderr]     |
Dec 14 16:53:24.539 INFO [stderr] 567 | fn parse_identifier(mut cursor: &mut TokenizerCursor) -> Result<(Range, CoreToken), ParseError> {
Dec 14 16:53:24.539 INFO [stderr]     |                     ----^^^^^^
Dec 14 16:53:24.539 INFO [stderr]     |                     |
Dec 14 16:53:24.539 INFO [stderr]     |                     help: remove this `mut`
Dec 14 16:53:24.539 INFO [stderr]     |
Dec 14 16:53:24.539 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 14 16:53:24.539 INFO [stderr] 
Dec 14 16:53:24.547 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:24.547 INFO [stderr]    --> src/frontend.rs:749:15
Dec 14 16:53:24.547 INFO [stderr]     |
Dec 14 16:53:24.547 INFO [stderr] 749 | fn parse_pack(mut c: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
Dec 14 16:53:24.547 INFO [stderr]     |               ----^
Dec 14 16:53:24.547 INFO [stderr]     |               |
Dec 14 16:53:24.547 INFO [stderr]     |               help: remove this `mut`
Dec 14 16:53:24.547 INFO [stderr] 
Dec 14 16:53:24.559 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:24.559 INFO [stderr]    --> src/frontend.rs:893:18
Dec 14 16:53:24.559 INFO [stderr]     |
Dec 14 16:53:24.559 INFO [stderr] 893 | fn parse_mul_div(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
Dec 14 16:53:24.559 INFO [stderr]     |                  ----^^^^^^
Dec 14 16:53:24.559 INFO [stderr]     |                  |
Dec 14 16:53:24.559 INFO [stderr]     |                  help: remove this `mut`
Dec 14 16:53:24.559 INFO [stderr] 
Dec 14 16:53:24.559 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:24.559 INFO [stderr]    --> src/frontend.rs:906:18
Dec 14 16:53:24.559 INFO [stderr]     |
Dec 14 16:53:24.559 INFO [stderr] 906 | fn parse_add_sub(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
Dec 14 16:53:24.559 INFO [stderr]     |                  ----^^^^^^
Dec 14 16:53:24.559 INFO [stderr]     |                  |
Dec 14 16:53:24.559 INFO [stderr]     |                  help: remove this `mut`
Dec 14 16:53:24.559 INFO [stderr] 
Dec 14 16:53:24.559 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:24.559 INFO [stderr]    --> src/frontend.rs:919:16
Dec 14 16:53:24.559 INFO [stderr]     |
Dec 14 16:53:24.559 INFO [stderr] 919 | fn parse_relop(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
Dec 14 16:53:24.559 INFO [stderr]     |                ----^^^^^^
Dec 14 16:53:24.559 INFO [stderr]     |                |
Dec 14 16:53:24.559 INFO [stderr]     |                help: remove this `mut`
Dec 14 16:53:24.559 INFO [stderr] 
Dec 14 16:53:24.559 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:24.559 INFO [stderr]    --> src/frontend.rs:938:14
Dec 14 16:53:24.559 INFO [stderr]     |
Dec 14 16:53:24.559 INFO [stderr] 938 | fn parse_and(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
Dec 14 16:53:24.559 INFO [stderr]     |              ----^^^^^^
Dec 14 16:53:24.559 INFO [stderr]     |              |
Dec 14 16:53:24.559 INFO [stderr]     |              help: remove this `mut`
Dec 14 16:53:24.559 INFO [stderr] 
Dec 14 16:53:24.559 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:24.559 INFO [stderr]    --> src/frontend.rs:950:13
Dec 14 16:53:24.559 INFO [stderr]     |
Dec 14 16:53:24.559 INFO [stderr] 950 | fn parse_or(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
Dec 14 16:53:24.559 INFO [stderr]     |             ----^^^^^^
Dec 14 16:53:24.559 INFO [stderr]     |             |
Dec 14 16:53:24.559 INFO [stderr]     |             help: remove this `mut`
Dec 14 16:53:24.559 INFO [stderr] 
Dec 14 16:53:24.703 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:24.703 INFO [stderr]   --> src/pretty_print.rs:82:32
Dec 14 16:53:24.703 INFO [stderr]    |
Dec 14 16:53:24.703 INFO [stderr] 82 |                                mut processed: &mut HashSet<Addr>,
Dec 14 16:53:24.703 INFO [stderr]    |                                ----^^^^^^^^^
Dec 14 16:53:24.703 INFO [stderr]    |                                |
Dec 14 16:53:24.703 INFO [stderr]    |                                help: remove this `mut`
Dec 14 16:53:24.703 INFO [stderr] 
Dec 14 16:53:24.703 INFO [stderr] warning: variable does not need to be mutable
Dec 14 16:53:24.703 INFO [stderr]   --> src/pretty_print.rs:83:32
Dec 14 16:53:24.703 INFO [stderr]    |
Dec 14 16:53:24.703 INFO [stderr] 83 |                                mut rec_stack: &mut HashSet<Addr>) -> bool {
Dec 14 16:53:24.703 INFO [stderr]    |                                ----^^^^^^^^^
Dec 14 16:53:24.703 INFO [stderr]    |                                |
Dec 14 16:53:24.703 INFO [stderr]    |                                help: remove this `mut`
Dec 14 16:53:24.703 INFO [stderr] 
Dec 14 16:53:25.151 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.20s
Dec 14 16:53:25.157 INFO [stderr] su: No module specific data is present
Dec 14 16:53:25.581 INFO running `"docker" "inspect" "ce53a767a6c5b3f1ad0451c96f48607de4828ddd93ee504ae2d79bdf07ad6c52"`
Dec 14 16:53:25.755 INFO running `"docker" "rm" "-f" "ce53a767a6c5b3f1ad0451c96f48607de4828ddd93ee504ae2d79bdf07ad6c52"`
Dec 14 16:53:25.902 INFO [stdout] ce53a767a6c5b3f1ad0451c96f48607de4828ddd93ee504ae2d79bdf07ad6c52