[INFO] cloning repository https://github.com/Kreedzt/rwr-profile-demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Kreedzt/rwr-profile-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKreedzt%2Frwr-profile-demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKreedzt%2Frwr-profile-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 758156396f6a4e6f0dfe79cb73264f0b659086f8
[INFO] checking Kreedzt/rwr-profile-demo against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKreedzt%2Frwr-profile-demo" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Kreedzt/rwr-profile-demo
[INFO] finished tweaking git repo https://github.com/Kreedzt/rwr-profile-demo
[INFO] tweaked toml for git repo https://github.com/Kreedzt/rwr-profile-demo written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Kreedzt/rwr-profile-demo on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Kreedzt/rwr-profile-demo 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2d07aa8357354a4b98a5781b52e4f9107095a648678ca64472ec7518552c94b7
[INFO] running `Command { std: "docker" "start" "-a" "2d07aa8357354a4b98a5781b52e4f9107095a648678ca64472ec7518552c94b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d07aa8357354a4b98a5781b52e4f9107095a648678ca64472ec7518552c94b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d07aa8357354a4b98a5781b52e4f9107095a648678ca64472ec7518552c94b7", kill_on_drop: false }`
[INFO] [stdout] 2d07aa8357354a4b98a5781b52e4f9107095a648678ca64472ec7518552c94b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c4a4cb1dd6225fa6907553a427afef3a27723aa4bdeb0ae64e7dfc096b4caf0
[INFO] running `Command { std: "docker" "start" "-a" "0c4a4cb1dd6225fa6907553a427afef3a27723aa4bdeb0ae64e7dfc096b4caf0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.85
[INFO] [stderr]    Compiling serde_derive v1.0.133
[INFO] [stderr]    Compiling serde v1.0.133
[INFO] [stderr]    Compiling serde_json v1.0.75
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking quick-xml v0.22.0
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]     Checking rwr-profile-demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `model::Person`
[INFO] [stdout]  --> src/main.rs:1:58
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{extract::extract_person, file::save_to_file, model::Person, save::save_person};
[INFO] [stdout]   |                                                          ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BytesText`
[INFO] [stdout]  --> src/save.rs:2:54
[INFO] [stdout]   |
[INFO] [stdout] 2 | use quick_xml::events::{BytesEnd, BytesStart, Event, BytesText};
[INFO] [stdout]   |                                                      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `model::Person`
[INFO] [stdout]  --> src/main.rs:1:58
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{extract::extract_person, file::save_to_file, model::Person, save::save_person};
[INFO] [stdout]   |                                                          ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BytesText`
[INFO] [stdout]  --> src/save.rs:2:54
[INFO] [stdout]   |
[INFO] [stdout] 2 | use quick_xml::events::{BytesEnd, BytesStart, Event, BytesText};
[INFO] [stdout]   |                                                      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/extract.rs:66:41
[INFO] [stdout]    |
[INFO] [stdout] 66 | ...                   let mut order_item = OrderTag::default();
[INFO] [stdout]    |                           ----^^^^^^^^^^
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `is_in_person` is assigned to, but never used
[INFO] [stdout]   --> src/extract.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut is_in_person = false;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_is_in_person` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `order_item`
[INFO] [stdout]   --> src/extract.rs:66:41
[INFO] [stdout]    |
[INFO] [stdout] 66 | ...                   let mut order_item = OrderTag::default();
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_order_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `is_in_person` is never read
[INFO] [stdout]   --> src/extract.rs:23:25
[INFO] [stdout]    |
[INFO] [stdout] 23 |                         is_in_person = true;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/save.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let mut stash_tag = BytesStart::owned(b"stash".to_owned(), "stash".len());
[INFO] [stdout]    |         ----^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/save.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |     let mut backpack_tag = BytesStart::owned(b"backpack".to_owned(), "backpack".len());
[INFO] [stdout]    |         ----^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/extract.rs:139:58
[INFO] [stdout]     |
[INFO] [stdout] 139 | ...                   stash_item.key = attr_value.parse().unwrap();
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> src/file.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     file.write_all(data.as_bytes());
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let _ = file.write_all(data.as_bytes());
[INFO] [stdout]   |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/save.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     writer.write_event(Event::Start(person_tag));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let _ = writer.write_event(Event::Start(person_tag));
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/save.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     writer.write_event(Event::Empty(order_tag));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let _ = writer.write_event(Event::Empty(order_tag));
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/save.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |         writer.write_event(Event::Empty(item_tag));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 48 |         let _ = writer.write_event(Event::Empty(item_tag));
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/save.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     writer.write_event(Event::Start(stash_tag));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let _ = writer.write_event(Event::Start(stash_tag));
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/save.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |         writer.write_event(Event::Empty(stash_item_tag));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 62 |         let _ = writer.write_event(Event::Empty(stash_item_tag));
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/save.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     writer.write_event(Event::End(BytesEnd::borrowed(b"stash")));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 65 |     let _ = writer.write_event(Event::End(BytesEnd::borrowed(b"stash")));
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/save.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     writer.write_event(Event::Empty(backpack_tag));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 69 |     let _ = writer.write_event(Event::Empty(backpack_tag));
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/save.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     writer.write_event(Event::End(BytesEnd::borrowed(b"person")));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 71 |     let _ = writer.write_event(Event::End(BytesEnd::borrowed(b"person")));
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/extract.rs:66:41
[INFO] [stdout]    |
[INFO] [stdout] 66 | ...                   let mut order_item = OrderTag::default();
[INFO] [stdout]    |                           ----^^^^^^^^^^
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `is_in_person` is assigned to, but never used
[INFO] [stdout]   --> src/extract.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut is_in_person = false;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_is_in_person` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `order_item`
[INFO] [stdout]   --> src/extract.rs:66:41
[INFO] [stdout]    |
[INFO] [stdout] 66 | ...                   let mut order_item = OrderTag::default();
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_order_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `is_in_person` is never read
[INFO] [stdout]   --> src/extract.rs:23:25
[INFO] [stdout]    |
[INFO] [stdout] 23 |                         is_in_person = true;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rwr-profile-demo` (bin "rwr-profile-demo") due to 1 previous error; 17 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/save.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let mut stash_tag = BytesStart::owned(b"stash".to_owned(), "stash".len());
[INFO] [stdout]    |         ----^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/save.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |     let mut backpack_tag = BytesStart::owned(b"backpack".to_owned(), "backpack".len());
[INFO] [stdout]    |         ----^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/extract.rs:139:58
[INFO] [stdout]     |
[INFO] [stdout] 139 | ...                   stash_item.key = attr_value.parse().unwrap();
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> src/file.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     file.write_all(data.as_bytes());
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let _ = file.write_all(data.as_bytes());
[INFO] [stdout]   |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/save.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     writer.write_event(Event::Start(person_tag));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let _ = writer.write_event(Event::Start(person_tag));
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/save.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     writer.write_event(Event::Empty(order_tag));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let _ = writer.write_event(Event::Empty(order_tag));
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/save.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |         writer.write_event(Event::Empty(item_tag));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 48 |         let _ = writer.write_event(Event::Empty(item_tag));
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/save.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     writer.write_event(Event::Start(stash_tag));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let _ = writer.write_event(Event::Start(stash_tag));
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/save.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |         writer.write_event(Event::Empty(stash_item_tag));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 62 |         let _ = writer.write_event(Event::Empty(stash_item_tag));
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/save.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     writer.write_event(Event::End(BytesEnd::borrowed(b"stash")));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 65 |     let _ = writer.write_event(Event::End(BytesEnd::borrowed(b"stash")));
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/save.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     writer.write_event(Event::Empty(backpack_tag));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 69 |     let _ = writer.write_event(Event::Empty(backpack_tag));
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/save.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     writer.write_event(Event::End(BytesEnd::borrowed(b"person")));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 71 |     let _ = writer.write_event(Event::End(BytesEnd::borrowed(b"person")));
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rwr-profile-demo` (bin "rwr-profile-demo" test) due to 1 previous error; 17 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "0c4a4cb1dd6225fa6907553a427afef3a27723aa4bdeb0ae64e7dfc096b4caf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c4a4cb1dd6225fa6907553a427afef3a27723aa4bdeb0ae64e7dfc096b4caf0", kill_on_drop: false }`
[INFO] [stdout] 0c4a4cb1dd6225fa6907553a427afef3a27723aa4bdeb0ae64e7dfc096b4caf0
