[INFO] cloning repository https://github.com/CornSnek/cube_combination_reader
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CornSnek/cube_combination_reader" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCornSnek%2Fcube_combination_reader", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCornSnek%2Fcube_combination_reader'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 52e6518db21965ecc8e02ac9b0fde50e2f97a91f
[INFO] checking CornSnek/cube_combination_reader against master#f2c70877a7dbc51cd98e2d5d25209b24d4a586d5 for pr-150097
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCornSnek%2Fcube_combination_reader" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/CornSnek/cube_combination_reader
[INFO] finished tweaking git repo https://github.com/CornSnek/cube_combination_reader
[INFO] tweaked toml for git repo https://github.com/CornSnek/cube_combination_reader written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/CornSnek/cube_combination_reader on toolchain f2c70877a7dbc51cd98e2d5d25209b24d4a586d5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f2c70877a7dbc51cd98e2d5d25209b24d4a586d5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/CornSnek/cube_combination_reader already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f2c70877a7dbc51cd98e2d5d25209b24d4a586d5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/fltk-rs/fltk-rs`
[INFO] [stderr]     Updating git submodule `https://github.com/MoAlyousef/cfltk`
[INFO] [stderr]     Updating git submodule `https://github.com/MoAlyousef/FL_FLex`
[INFO] [stderr]     Updating git submodule `https://github.com/fltk/fltk`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fd-lock v3.0.8
[INFO] [stderr]   Downloaded io-lifetimes v1.0.1
[INFO] [stderr]   Downloaded rustyline v10.0.0
[INFO] [stderr]   Downloaded rustix v0.36.1
[INFO] [stderr]   Downloaded linux-raw-sys v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+f2c70877a7dbc51cd98e2d5d25209b24d4a586d5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 04b7a8d2d66d46eed1bd34ac2b2155e84590e626682442775b0e885cda4213a6
[INFO] running `Command { std: "docker" "start" "-a" "04b7a8d2d66d46eed1bd34ac2b2155e84590e626682442775b0e885cda4213a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04b7a8d2d66d46eed1bd34ac2b2155e84590e626682442775b0e885cda4213a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04b7a8d2d66d46eed1bd34ac2b2155e84590e626682442775b0e885cda4213a6", kill_on_drop: false }`
[INFO] [stdout] 04b7a8d2d66d46eed1bd34ac2b2155e84590e626682442775b0e885cda4213a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+f2c70877a7dbc51cd98e2d5d25209b24d4a586d5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f6553214a5cd9e61db4c8190d847f3b1346d8fc51609bb9901590f0a26f5401
[INFO] running `Command { std: "docker" "start" "-a" "0f6553214a5cd9e61db4c8190d847f3b1346d8fc51609bb9901590f0a26f5401", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling cc v1.0.76
[INFO] [stderr]    Compiling io-lifetimes v1.0.1
[INFO] [stderr]    Compiling rustix v0.36.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.12
[INFO] [stderr]     Checking linux-raw-sys v0.1.2
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]    Compiling paste v1.0.9
[INFO] [stderr]     Checking unicode-segmentation v1.10.0
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]    Compiling cmake v0.1.49
[INFO] [stderr]    Compiling fltk-sys v1.3.20 (https://github.com/fltk-rs/fltk-rs#c77c35af)
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking nix v0.24.2
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking fd-lock v3.0.8
[INFO] [stderr]     Checking rustyline v10.0.0
[INFO] [stderr]     Checking fltk v1.3.20 (https://github.com/fltk-rs/fltk-rs#c77c35af)
[INFO] [stderr]     Checking cube_combination_reader v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/cube/tui.rs:105:61
[INFO] [stdout]     |
[INFO] [stdout] 105 |                     let args:Box<_>=line.split_whitespace().collect();
[INFO] [stdout]     |                                                             ^^^^^^^ cannot infer type of the type parameter `B` declared on the method `collect`
[INFO] [stdout] 106 |                     let default_cmd=&(Self::not_found_cmd as super::commands::Commands,"","");
[INFO] [stdout] 107 |                     if args.is_empty(){ continue }
[INFO] [stdout]     |                        ---- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]     |
[INFO] [stdout] 105 |                     let args:Box<_>=line.split_whitespace().collect::<Vec<_>>();
[INFO] [stdout]     |                                                                    ++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/cube/tui.rs:105:61
[INFO] [stdout]     |
[INFO] [stdout] 105 |                     let args:Box<_>=line.split_whitespace().collect();
[INFO] [stdout]     |                                                             ^^^^^^^ cannot infer type of the type parameter `B` declared on the method `collect`
[INFO] [stdout] 106 |                     let default_cmd=&(Self::not_found_cmd as super::commands::Commands,"","");
[INFO] [stdout] 107 |                     if args.is_empty(){ continue }
[INFO] [stdout]     |                        ---- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]     |
[INFO] [stdout] 105 |                     let args:Box<_>=line.split_whitespace().collect::<Vec<_>>();
[INFO] [stdout]     |                                                                    ++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/cube/tui.rs:386:82
[INFO] [stdout]     |
[INFO] [stdout] 386 |             .enumerate().filter_map(|(i,s)| if let 3=i%4{ None }else{ Some(s) }).collect(); //Remove fuse_tier and converts_to
[INFO] [stdout]     |                                                                                  ^^^^^^^ cannot infer type of the type parameter `B` declared on the method `collect`
[INFO] [stdout] 387 |         if parsed_str.len()%3!=0{
[INFO] [stdout]     |            ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]     |
[INFO] [stdout] 386 |             .enumerate().filter_map(|(i,s)| if let 3=i%4{ None }else{ Some(s) }).collect::<Vec<_>>(); //Remove fuse_tier and converts_to
[INFO] [stdout]     |                                                                                         ++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/cube/tui.rs:386:82
[INFO] [stdout]     |
[INFO] [stdout] 386 |             .enumerate().filter_map(|(i,s)| if let 3=i%4{ None }else{ Some(s) }).collect(); //Remove fuse_tier and converts_to
[INFO] [stdout]     |                                                                                  ^^^^^^^ cannot infer type of the type parameter `B` declared on the method `collect`
[INFO] [stdout] 387 |         if parsed_str.len()%3!=0{
[INFO] [stdout]     |            ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]     |
[INFO] [stdout] 386 |             .enumerate().filter_map(|(i,s)| if let 3=i%4{ None }else{ Some(s) }).collect::<Vec<_>>(); //Remove fuse_tier and converts_to
[INFO] [stdout]     |                                                                                         ++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/cube/tui.rs:397:30
[INFO] [stdout]     |
[INFO] [stdout] 397 |             let tier={ match tier_str.parse::<i32>(){ Ok(tier)=>{ tier } Err(e)=> return ErrToCSErr!(e) } };
[INFO] [stdout]     |                              ^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/cube/tui.rs:397:30
[INFO] [stdout]     |
[INFO] [stdout] 397 |             let tier={ match tier_str.parse::<i32>(){ Ok(tier)=>{ tier } Err(e)=> return ErrToCSErr!(e) } };
[INFO] [stdout]     |                              ^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/cube/tui.rs:401:16
[INFO] [stdout]     |
[INFO] [stdout] 401 |             if valid_fcs.is_empty(){ continue }
[INFO] [stdout]     |                ^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/cube/tui.rs:403:31
[INFO] [stdout]     |
[INFO] [stdout] 403 |                 let mut iter3=fcs.split('|');
[INFO] [stdout]     |                               ^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/cube/tui.rs:401:16
[INFO] [stdout]     |
[INFO] [stdout] 401 |             if valid_fcs.is_empty(){ continue }
[INFO] [stdout]     |                ^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/cube/tui.rs:403:31
[INFO] [stdout]     |
[INFO] [stdout] 403 |                 let mut iter3=fcs.split('|');
[INFO] [stdout]     |                               ^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/cube/tui.rs:407:23
[INFO] [stdout]     |
[INFO] [stdout] 407 |                 match fc1.strip_suffix('?'){
[INFO] [stdout]     |                       ^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/cube/tui.rs:407:23
[INFO] [stdout]     |
[INFO] [stdout] 407 |                 match fc1.strip_suffix('?'){
[INFO] [stdout]     |                       ^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/cube/tui.rs:426:32
[INFO] [stdout]     |
[INFO] [stdout] 426 |             self.cdll.point_to(cube_name.to_string())?;
[INFO] [stdout]     |                                ^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/cube/tui.rs:426:32
[INFO] [stdout]     |
[INFO] [stdout] 426 |             self.cdll.point_to(cube_name.to_string())?;
[INFO] [stdout]     |                                ^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/cube/tui.rs:429:49
[INFO] [stdout]     |
[INFO] [stdout] 429 |                     self.cdll.link_at_p_fb_pair(cube_1.to_string(),cube_2.to_string(),w)?;
[INFO] [stdout]     |                                                 ^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/cube/tui.rs:429:49
[INFO] [stdout]     |
[INFO] [stdout] 429 |                     self.cdll.link_at_p_fb_pair(cube_1.to_string(),cube_2.to_string(),w)?;
[INFO] [stdout]     |                                                 ^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/cube/tui.rs:429:68
[INFO] [stdout]     |
[INFO] [stdout] 429 |                     self.cdll.link_at_p_fb_pair(cube_1.to_string(),cube_2.to_string(),w)?;
[INFO] [stdout]     |                                                                    ^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/cube/tui.rs:429:68
[INFO] [stdout]     |
[INFO] [stdout] 429 |                     self.cdll.link_at_p_fb_pair(cube_1.to_string(),cube_2.to_string(),w)?;
[INFO] [stdout]     |                                                                    ^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed for `Box<_>`
[INFO] [stdout]    --> src/cube/tui.rs:456:13
[INFO] [stdout]     |
[INFO] [stdout] 456 | ...   let mut usage_str_box=self.hm_command.values().filter(|&&(_,s1,_)|unique_usage_str.insert(s1)).map(|&(_,s1,s2)|s1.to_string()...
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 457 | ...   usage_str_box.sort_unstable();
[INFO] [stdout]     |       ------------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout] help: consider giving `usage_str_box` an explicit type, where the placeholders `_` are specified
[INFO] [stdout]     |
[INFO] [stdout] 456 |         let mut usage_str_box: Box<_>=self.hm_command.values().filter(|&&(_,s1,_)|unique_usage_str.insert(s1)).map(|&(_,s1,s2)|s1.to_string()+"\n\t"+s2).collect::<Box<_>>();
[INFO] [stdout]     |                              ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed for `Box<_>`
[INFO] [stdout]    --> src/cube/tui.rs:456:13
[INFO] [stdout]     |
[INFO] [stdout] 456 | ...   let mut usage_str_box=self.hm_command.values().filter(|&&(_,s1,_)|unique_usage_str.insert(s1)).map(|&(_,s1,s2)|s1.to_string()...
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 457 | ...   usage_str_box.sort_unstable();
[INFO] [stdout]     |       ------------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout] help: consider giving `usage_str_box` an explicit type, where the placeholders `_` are specified
[INFO] [stdout]     |
[INFO] [stdout] 456 |         let mut usage_str_box: Box<_>=self.hm_command.values().filter(|&&(_,s1,_)|unique_usage_str.insert(s1)).map(|&(_,s1,s2)|s1.to_string()+"\n\t"+s2).collect::<Box<_>>();
[INFO] [stdout]     |                              ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/cube/fltk_ui.rs:278:72
[INFO] [stdout]     |
[INFO] [stdout] 278 | ...                   let args:Box<_>=cmd_str.split_whitespace().collect();
[INFO] [stdout]     |                                                                  ^^^^^^^ cannot infer type of the type parameter `B` declared on the method `collect`
[INFO] [stdout] 279 | ...                   if args.is_empty(){ continue }
[INFO] [stdout]     |                          ---- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]     |
[INFO] [stdout] 278 |                             let args:Box<_>=cmd_str.split_whitespace().collect::<Vec<_>>();
[INFO] [stdout]     |                                                                               ++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/cube/fltk_ui.rs:278:72
[INFO] [stdout]     |
[INFO] [stdout] 278 | ...                   let args:Box<_>=cmd_str.split_whitespace().collect();
[INFO] [stdout]     |                                                                  ^^^^^^^ cannot infer type of the type parameter `B` declared on the method `collect`
[INFO] [stdout] 279 | ...                   if args.is_empty(){ continue }
[INFO] [stdout]     |                          ---- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]     |
[INFO] [stdout] 278 |                             let args:Box<_>=cmd_str.split_whitespace().collect::<Vec<_>>();
[INFO] [stdout]     |                                                                               ++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/cube.rs:78:60
[INFO] [stdout]    |
[INFO] [stdout] 78 |                     let args:Box<_>=buf.split_whitespace().collect();
[INFO] [stdout]    |                                                            ^^^^^^^ cannot infer type of the type parameter `B` declared on the method `collect`
[INFO] [stdout] 79 |                     if args.is_empty(){ return Ok(false) }
[INFO] [stdout]    |                        ---- type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]    |
[INFO] [stdout] 78 |                     let args:Box<_>=buf.split_whitespace().collect::<Vec<_>>();
[INFO] [stdout]    |                                                                   ++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/cube.rs:78:60
[INFO] [stdout]    |
[INFO] [stdout] 78 |                     let args:Box<_>=buf.split_whitespace().collect();
[INFO] [stdout]    |                                                            ^^^^^^^ cannot infer type of the type parameter `B` declared on the method `collect`
[INFO] [stdout] 79 |                     if args.is_empty(){ return Ok(false) }
[INFO] [stdout]    |                        ---- type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]    |
[INFO] [stdout] 78 |                     let args:Box<_>=buf.split_whitespace().collect::<Vec<_>>();
[INFO] [stdout]    |                                                                   ++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/cube.rs:595:107
[INFO] [stdout]     |
[INFO] [stdout] 595 | ...}\n",str_v.concat())).collect::<Box<_>>().concat())?;
[INFO] [stdout]     |                          ^^^^^^^ cannot infer type of the type parameter `B` declared on the method `collect`
[INFO] [stdout]     |
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]     |
[INFO] [stdout] 595 -             w.write_output(build_vec.iter().map(|(tier,str_v)|format!("[{tier}] => {}\n",str_v.concat())).collect::<Box<_>>().concat())?;
[INFO] [stdout] 595 +             w.write_output(build_vec.iter().map(|(tier,str_v)|format!("[{tier}] => {}\n",str_v.concat())).collect::<Vec<_>>().concat())?;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed for `Box<_>`
[INFO] [stdout]  --> src/main.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let args=std::env::args().collect::<Box<_>>();
[INFO] [stdout]   |         ^^^^
[INFO] [stdout] 4 |     let args_len@(2|3)=args.len() else{
[INFO] [stdout]   |                        ---- type must be known at this point
[INFO] [stdout]   |
[INFO] [stdout] help: consider giving `args` an explicit type, where the placeholders `_` are specified
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let args: Box<_>=std::env::args().collect::<Box<_>>();
[INFO] [stdout]   |             ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/cube.rs:595:107
[INFO] [stdout]     |
[INFO] [stdout] 595 | ...}\n",str_v.concat())).collect::<Box<_>>().concat())?;
[INFO] [stdout]     |                          ^^^^^^^ cannot infer type of the type parameter `B` declared on the method `collect`
[INFO] [stdout]     |
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]     |
[INFO] [stdout] 595 -             w.write_output(build_vec.iter().map(|(tier,str_v)|format!("[{tier}] => {}\n",str_v.concat())).collect::<Box<_>>().concat())?;
[INFO] [stdout] 595 +             w.write_output(build_vec.iter().map(|(tier,str_v)|format!("[{tier}] => {}\n",str_v.concat())).collect::<Vec<_>>().concat())?;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed for `Box<_>`
[INFO] [stdout]  --> src/main.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let args=std::env::args().collect::<Box<_>>();
[INFO] [stdout]   |         ^^^^
[INFO] [stdout] 4 |     let args_len@(2|3)=args.len() else{
[INFO] [stdout]   |                        ---- type must be known at this point
[INFO] [stdout]   |
[INFO] [stdout] help: consider giving `args` an explicit type, where the placeholders `_` are specified
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let args: Box<_>=std::env::args().collect::<Box<_>>();
[INFO] [stdout]   |             ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cube_combination_reader` (bin "cube_combination_reader" test) due to 14 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `cube_combination_reader` (bin "cube_combination_reader") due to 14 previous errors
[INFO] running `Command { std: "docker" "inspect" "0f6553214a5cd9e61db4c8190d847f3b1346d8fc51609bb9901590f0a26f5401", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f6553214a5cd9e61db4c8190d847f3b1346d8fc51609bb9901590f0a26f5401", kill_on_drop: false }`
[INFO] [stdout] 0f6553214a5cd9e61db4c8190d847f3b1346d8fc51609bb9901590f0a26f5401
