[INFO] updating cached repository fhaynes/iridium
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/fhaynes/iridium
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/fhaynes/iridium" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/fhaynes/iridium"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/fhaynes/iridium'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/fhaynes/iridium" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/fhaynes/iridium"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/fhaynes/iridium'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2cfad1c94d712a9899d6e0d39d373309965c2bff
[INFO] sha for GitHub repo fhaynes/iridium: 2cfad1c94d712a9899d6e0d39d373309965c2bff
[INFO] validating manifest of fhaynes/iridium on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of fhaynes/iridium on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing fhaynes/iridium
[INFO] finished frobbing fhaynes/iridium
[INFO] frobbed toml for fhaynes/iridium written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/fhaynes/iridium/Cargo.toml
[INFO] started frobbing fhaynes/iridium
[INFO] finished frobbing fhaynes/iridium
[INFO] frobbed toml for fhaynes/iridium written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/fhaynes/iridium/Cargo.toml
[INFO] crate fhaynes/iridium already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking fhaynes/iridium against master#60960a260f7b5c695fd0717311d72ce62dd4eb43 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-2/master#60960a260f7b5c695fd0717311d72ce62dd4eb43:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/fhaynes/iridium:/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" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f24b347e896135bfa83ff84ec4eb76af65f44dad1ba9c33e633ac631a6c9a8aa
[INFO] running `"docker" "start" "-a" "f24b347e896135bfa83ff84ec4eb76af65f44dad1ba9c33e633ac631a6c9a8aa"`
[INFO] [stderr]     Checking criterion-plot v0.2.5
[INFO] [stderr]     Checking simplelog v0.5.3
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking handlebars v0.32.4
[INFO] [stderr]     Checking csv v1.0.2
[INFO] [stderr]     Checking iridium v0.0.33 (/opt/crater/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/assembler/comment_parsers.rs:4:1
[INFO] [stderr]    |
[INFO] [stderr] 4  | / /// Looks for a comment start
[INFO] [stderr] 5  | | /// Examples:
[INFO] [stderr]    | |_____________^
[INFO] [stderr] 6  | / named!(pub comment<CompleteStr, Token>,
[INFO] [stderr] 7  | |     ws!(
[INFO] [stderr] 8  | |         do_parse!(
[INFO] [stderr] 9  | |             tag!(";") >>
[INFO] [stderr] ...  |
[INFO] [stderr] 15 | |     )
[INFO] [stderr] 16 | | );
[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/assembler/directive_parsers.rs:40:1
[INFO] [stderr]    |
[INFO] [stderr] 40 |   /// Will try to parse out any of the Directive forms
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 41 | / named!(pub directive<CompleteStr, AssemblerInstruction>,
[INFO] [stderr] 42 | |     do_parse!(
[INFO] [stderr] 43 | |         ins: alt!(
[INFO] [stderr] 44 | |             directive_combined
[INFO] [stderr] ...  |
[INFO] [stderr] 49 | |     )
[INFO] [stderr] 50 | | );
[INFO] [stderr]    | |__- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[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/assembler/instruction_parsers.rs:233:1
[INFO] [stderr]     |
[INFO] [stderr] 233 |   /// Will try to parse out any of the Instruction forms
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 234 | / named!(pub instruction<CompleteStr, AssemblerInstruction>,
[INFO] [stderr] 235 | |     do_parse!(
[INFO] [stderr] 236 | |         ins: alt!(
[INFO] [stderr] 237 | |             instruction_combined
[INFO] [stderr] ...   |
[INFO] [stderr] 242 | |     )
[INFO] [stderr] 243 | | );
[INFO] [stderr]     | |__- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]     |
[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/assembler/label_parsers.rs:5:1
[INFO] [stderr]    |
[INFO] [stderr] 5  |   /// Looks for a user-defined label, such as `label1:`
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 6  | / named!(pub label_declaration<CompleteStr, Token>,
[INFO] [stderr] 7  | |     ws!(
[INFO] [stderr] 8  | |         do_parse!(
[INFO] [stderr] 9  | |             name: alphanumeric >>
[INFO] [stderr] ...  |
[INFO] [stderr] 16 | |     )
[INFO] [stderr] 17 | | );
[INFO] [stderr]    | |__- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[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/assembler/label_parsers.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 |   /// Looks for a user-defined label, such as `label1:`
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 20 | / named!(pub label_usage<CompleteStr, Token>,
[INFO] [stderr] 21 | |     ws!(
[INFO] [stderr] 22 | |         do_parse!(
[INFO] [stderr] 23 | |             tag!("@") >>
[INFO] [stderr] ...  |
[INFO] [stderr] 30 | |     )
[INFO] [stderr] 31 | | );
[INFO] [stderr]    | |__- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[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/assembler/operand_parsers.rs:7:1
[INFO] [stderr]    |
[INFO] [stderr] 7  | / /// Parser for all numbers, which have to be prefaced with `#` in our assembly language:
[INFO] [stderr] 8  | | /// #100
[INFO] [stderr]    | |________^
[INFO] [stderr] 9  | / named!(integer_operand<CompleteStr, Token>,
[INFO] [stderr] 10 | |     ws!(
[INFO] [stderr] 11 | |         do_parse!(
[INFO] [stderr] 12 | |             tag!("#") >>
[INFO] [stderr] ...  |
[INFO] [stderr] 27 | |     )
[INFO] [stderr] 28 | | );
[INFO] [stderr]    | |__- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[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/assembler/operand_parsers.rs:30:1
[INFO] [stderr]    |
[INFO] [stderr] 30 | / /// Parser for all floats, which have to be prefaced with `#` in our assembly language:
[INFO] [stderr] 31 | | /// #100.0
[INFO] [stderr]    | |__________^
[INFO] [stderr] 32 | / named!(float_operand<CompleteStr, Token>,
[INFO] [stderr] 33 | |     ws!(
[INFO] [stderr] 34 | |         do_parse!(
[INFO] [stderr] 35 | |             tag!("#") >>
[INFO] [stderr] ...  |
[INFO] [stderr] 53 | |     )
[INFO] [stderr] 54 | | );
[INFO] [stderr]    | |__- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/cluster/client.rs:53:27
[INFO] [stderr]    |
[INFO] [stderr] 53 |                 if let Ok(mut hello) = IridiumMessage::hello(alias, &self.bind_port.clone().unwrap()) {
[INFO] [stderr]    |                           ----^^^^^
[INFO] [stderr]    |                           |
[INFO] [stderr]    |                           help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Checking criterion v0.2.5
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/cluster/server.rs:30:33
[INFO] [stderr]    |
[INFO] [stderr] 30 |                             let mut cmgr_lock = cmgr.read().unwrap();
[INFO] [stderr]    |                                 ----^^^^^^^^^
[INFO] [stderr]    |                                 |
[INFO] [stderr]    |                                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/cluster/server.rs:14:13
[INFO] [stderr]    |
[INFO] [stderr] 14 |         let mut cmgr = connection_manager.clone();
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `core::str::<impl str>::trim_end` that must be used
[INFO] [stderr]   --> src/remote/client.rs:80:21
[INFO] [stderr]    |
[INFO] [stderr] 80 |                     buf.trim_end();
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this returns the trimmed string as a new slice, without modifying the original
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/bin/iridium.rs:108:21
[INFO] [stderr]     |
[INFO] [stderr] 108 |                 let mut vm = VM::new()
[INFO] [stderr]     |                     ----^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/bin/iridium.rs:112:21
[INFO] [stderr]     |
[INFO] [stderr] 112 |                 let mut rx = repl.rx_pipe.take();
[INFO] [stderr]     |                     ----^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/assembler/comment_parsers.rs:4:1
[INFO] [stderr]    |
[INFO] [stderr] 4  | / /// Looks for a comment start
[INFO] [stderr] 5  | | /// Examples:
[INFO] [stderr]    | |_____________^
[INFO] [stderr] 6  | / named!(pub comment<CompleteStr, Token>,
[INFO] [stderr] 7  | |     ws!(
[INFO] [stderr] 8  | |         do_parse!(
[INFO] [stderr] 9  | |             tag!(";") >>
[INFO] [stderr] ...  |
[INFO] [stderr] 15 | |     )
[INFO] [stderr] 16 | | );
[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/assembler/directive_parsers.rs:40:1
[INFO] [stderr]    |
[INFO] [stderr] 40 |   /// Will try to parse out any of the Directive forms
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 41 | / named!(pub directive<CompleteStr, AssemblerInstruction>,
[INFO] [stderr] 42 | |     do_parse!(
[INFO] [stderr] 43 | |         ins: alt!(
[INFO] [stderr] 44 | |             directive_combined
[INFO] [stderr] ...  |
[INFO] [stderr] 49 | |     )
[INFO] [stderr] 50 | | );
[INFO] [stderr]    | |__- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[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/assembler/instruction_parsers.rs:233:1
[INFO] [stderr]     |
[INFO] [stderr] 233 |   /// Will try to parse out any of the Instruction forms
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 234 | / named!(pub instruction<CompleteStr, AssemblerInstruction>,
[INFO] [stderr] 235 | |     do_parse!(
[INFO] [stderr] 236 | |         ins: alt!(
[INFO] [stderr] 237 | |             instruction_combined
[INFO] [stderr] ...   |
[INFO] [stderr] 242 | |     )
[INFO] [stderr] 243 | | );
[INFO] [stderr]     | |__- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]     |
[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/assembler/label_parsers.rs:5:1
[INFO] [stderr]    |
[INFO] [stderr] 5  |   /// Looks for a user-defined label, such as `label1:`
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 6  | / named!(pub label_declaration<CompleteStr, Token>,
[INFO] [stderr] 7  | |     ws!(
[INFO] [stderr] 8  | |         do_parse!(
[INFO] [stderr] 9  | |             name: alphanumeric >>
[INFO] [stderr] ...  |
[INFO] [stderr] 16 | |     )
[INFO] [stderr] 17 | | );
[INFO] [stderr]    | |__- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[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/assembler/label_parsers.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 |   /// Looks for a user-defined label, such as `label1:`
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 20 | / named!(pub label_usage<CompleteStr, Token>,
[INFO] [stderr] 21 | |     ws!(
[INFO] [stderr] 22 | |         do_parse!(
[INFO] [stderr] 23 | |             tag!("@") >>
[INFO] [stderr] ...  |
[INFO] [stderr] 30 | |     )
[INFO] [stderr] 31 | | );
[INFO] [stderr]    | |__- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[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/assembler/operand_parsers.rs:7:1
[INFO] [stderr]    |
[INFO] [stderr] 7  | / /// Parser for all numbers, which have to be prefaced with `#` in our assembly language:
[INFO] [stderr] 8  | | /// #100
[INFO] [stderr]    | |________^
[INFO] [stderr] 9  | / named!(integer_operand<CompleteStr, Token>,
[INFO] [stderr] 10 | |     ws!(
[INFO] [stderr] 11 | |         do_parse!(
[INFO] [stderr] 12 | |             tag!("#") >>
[INFO] [stderr] ...  |
[INFO] [stderr] 27 | |     )
[INFO] [stderr] 28 | | );
[INFO] [stderr]    | |__- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[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/assembler/operand_parsers.rs:30:1
[INFO] [stderr]    |
[INFO] [stderr] 30 | / /// Parser for all floats, which have to be prefaced with `#` in our assembly language:
[INFO] [stderr] 31 | | /// #100.0
[INFO] [stderr]    | |__________^
[INFO] [stderr] 32 | / named!(float_operand<CompleteStr, Token>,
[INFO] [stderr] 33 | |     ws!(
[INFO] [stderr] 34 | |         do_parse!(
[INFO] [stderr] 35 | |             tag!("#") >>
[INFO] [stderr] ...  |
[INFO] [stderr] 53 | |     )
[INFO] [stderr] 54 | | );
[INFO] [stderr]    | |__- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[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: variable does not need to be mutable
[INFO] [stderr]    --> src/bin/iridium.rs:108:21
[INFO] [stderr]     |
[INFO] [stderr] 108 |                 let mut vm = VM::new()
[INFO] [stderr]     |                     ----^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/bin/iridium.rs:112:21
[INFO] [stderr]     |
[INFO] [stderr] 112 |                 let mut rx = repl.rx_pipe.take();
[INFO] [stderr]     |                     ----^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/cluster/client.rs:53:27
[INFO] [stderr]    |
[INFO] [stderr] 53 |                 if let Ok(mut hello) = IridiumMessage::hello(alias, &self.bind_port.clone().unwrap()) {
[INFO] [stderr]    |                           ----^^^^^
[INFO] [stderr]    |                           |
[INFO] [stderr]    |                           help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/cluster/server.rs:30:33
[INFO] [stderr]    |
[INFO] [stderr] 30 |                             let mut cmgr_lock = cmgr.read().unwrap();
[INFO] [stderr]    |                                 ----^^^^^^^^^
[INFO] [stderr]    |                                 |
[INFO] [stderr]    |                                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/cluster/server.rs:14:13
[INFO] [stderr]    |
[INFO] [stderr] 14 |         let mut cmgr = connection_manager.clone();
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `PIE_HEADER_LENGTH`, `PIE_HEADER_PREFIX`
[INFO] [stderr]  --> benches/iridium.rs:6:26
[INFO] [stderr]   |
[INFO] [stderr] 6 | use iridium::assembler::{PIE_HEADER_LENGTH, PIE_HEADER_PREFIX};
[INFO] [stderr]   |                          ^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `core::str::<impl str>::trim_end` that must be used
[INFO] [stderr]   --> src/remote/client.rs:80:21
[INFO] [stderr]    |
[INFO] [stderr] 80 |                     buf.trim_end();
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this returns the trimmed string as a new slice, without modifying the original
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.02s
[INFO] running `"docker" "inspect" "f24b347e896135bfa83ff84ec4eb76af65f44dad1ba9c33e633ac631a6c9a8aa"`
[INFO] running `"docker" "rm" "-f" "f24b347e896135bfa83ff84ec4eb76af65f44dad1ba9c33e633ac631a6c9a8aa"`
[INFO] [stdout] f24b347e896135bfa83ff84ec4eb76af65f44dad1ba9c33e633ac631a6c9a8aa