[INFO] cloning repository https://github.com/Teknomancer/sysprocalc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Teknomancer/sysprocalc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTeknomancer%2Fsysprocalc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTeknomancer%2Fsysprocalc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5d17cb2afd45904de3b4cc04d4551c096eee581c
[INFO] checking Teknomancer/sysprocalc against master#158f00a1c5175648af6f6099b075f78d1d014a28 for pr-121251
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTeknomancer%2Fsysprocalc" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Teknomancer/sysprocalc on toolchain 158f00a1c5175648af6f6099b075f78d1d014a28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Teknomancer/sysprocalc
[INFO] finished tweaking git repo https://github.com/Teknomancer/sysprocalc
[INFO] tweaked toml for git repo https://github.com/Teknomancer/sysprocalc written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Teknomancer/sysprocalc 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" "+158f00a1c5175648af6f6099b075f78d1d014a28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 97f53def42fe87ca24c075bf382581fc663efe42278eff96678ab7091cb37f12
[INFO] running `Command { std: "docker" "start" "-a" "97f53def42fe87ca24c075bf382581fc663efe42278eff96678ab7091cb37f12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97f53def42fe87ca24c075bf382581fc663efe42278eff96678ab7091cb37f12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97f53def42fe87ca24c075bf382581fc663efe42278eff96678ab7091cb37f12", kill_on_drop: false }`
[INFO] [stdout] 97f53def42fe87ca24c075bf382581fc663efe42278eff96678ab7091cb37f12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d50c4e02b3345d031f7ddcbf55ccbcf3a27c2f76795f52003a8329e0d175e5a
[INFO] running `Command { std: "docker" "start" "-a" "0d50c4e02b3345d031f7ddcbf55ccbcf3a27c2f76795f52003a8329e0d175e5a", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling radium v0.6.2
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking funty v1.2.0
[INFO] [stderr]     Checking wyz v0.4.0
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking linux-raw-sys v0.4.12
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking funty v2.0.0
[INFO] [stderr]     Checking spceval v0.0.1 (/opt/rustwide/workdir/spceval)
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking bitvec v0.22.3
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]     Checking home v0.5.9
[INFO] [stderr]     Checking unicode-segmentation v1.10.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking nix v0.27.1
[INFO] [stderr]     Checking fd-lock v4.0.2
[INFO] [stderr]     Checking spcregs v0.0.1 (/opt/rustwide/workdir/spcregs)
[INFO] [stdout] warning: unused import: `Register`
[INFO] [stdout]  --> spcregs/src/unit_tests.rs:1:82
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{BitRange, BitRangeKind, RegisterDescriptor, RegisterDescriptorError, Register, MAX_BIT_COUNT, ByteOrder};
[INFO] [stdout]   |                                                                                  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx_last_bit`
[INFO] [stdout]   --> spcregs/src/register.rs:64:29
[INFO] [stdout]    |
[INFO] [stdout] 64 |                     let mut idx_last_bit = bit_count - 1;
[INFO] [stdout]    |                             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_idx_last_bit`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bit_range_row`
[INFO] [stdout]   --> spcregs/src/register.rs:80:25
[INFO] [stdout]    |
[INFO] [stdout] 80 |                     let bit_range_row = self.descriptor.bit_ranges().last().unwrap();
[INFO] [stdout]    |                         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bit_range_row`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> spcregs/src/register.rs:64:25
[INFO] [stdout]    |
[INFO] [stdout] 64 |                     let mut idx_last_bit = bit_count - 1;
[INFO] [stdout]    |                         ----^^^^^^^^^^^^
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx_last_bit`
[INFO] [stdout]   --> spcregs/src/register.rs:64:29
[INFO] [stdout]    |
[INFO] [stdout] 64 |                     let mut idx_last_bit = bit_count - 1;
[INFO] [stdout]    |                             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_idx_last_bit`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bit_range_row`
[INFO] [stdout]   --> spcregs/src/register.rs:80:25
[INFO] [stdout]    |
[INFO] [stdout] 80 |                     let bit_range_row = self.descriptor.bit_ranges().last().unwrap();
[INFO] [stdout]    |                         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bit_range_row`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `byte_order` is never read
[INFO] [stdout]   --> spcregs/src/register_descriptor.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct RegisterDescriptor {
[INFO] [stdout]    |            ------------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 15 |     byte_order: ByteOrder,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RegisterDescriptor` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> spcregs/src/register.rs:64:25
[INFO] [stdout]    |
[INFO] [stdout] 64 |                     let mut idx_last_bit = bit_count - 1;
[INFO] [stdout]    |                         ----^^^^^^^^^^^^
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> spcregs/src/register.rs:81:21
[INFO] [stdout]    |
[INFO] [stdout] 81 |                     write!(f, " ");
[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)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> spcregs/src/register.rs:84:29
[INFO] [stdout]    |
[INFO] [stdout] 84 | ...                   write!(f, "{}", vert_char);
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> spcregs/src/register.rs:86:29
[INFO] [stdout]    |
[INFO] [stdout] 86 | ...                   write!(f, " ");
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> spcregs/src/register.rs:89:29
[INFO] [stdout]    |
[INFO] [stdout] 89 | ...                   write!(f, " ");
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> spcregs/src/register.rs:92:21
[INFO] [stdout]    |
[INFO] [stdout] 92 |                     writeln!(f);
[INFO] [stdout]    |                     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `$crate::write` which comes from the expansion of the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> spcregs/src/register.rs:97:25
[INFO] [stdout]    |
[INFO] [stdout] 97 |                         write!(f, " ");
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> spcregs/src/register.rs:102:33
[INFO] [stdout]     |
[INFO] [stdout] 102 | ...                   write!(f, "{}", edge_char);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> spcregs/src/register.rs:108:41
[INFO] [stdout]     |
[INFO] [stdout] 108 | ...                   write!(f, "{}", vert_char);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> spcregs/src/register.rs:110:41
[INFO] [stdout]     |
[INFO] [stdout] 110 | ...                   write!(f, "{}", fill_char);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> spcregs/src/register.rs:113:37
[INFO] [stdout]     |
[INFO] [stdout] 113 | ...                   write!(f, "{}", fill_char);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> spcregs/src/register.rs:117:33
[INFO] [stdout]     |
[INFO] [stdout] 117 | ...                   write!(f, "{}", fill_char);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> spcregs/src/register.rs:121:25
[INFO] [stdout]     |
[INFO] [stdout] 121 | /                         writeln!(f, "{}{} {name:<namewidth$} ({bitnum:>bitwidth$}){bit_is_set}",
[INFO] [stdout] 122 | |                                  horiz_char,
[INFO] [stdout] 123 | |                                  horiz_char,
[INFO] [stdout] 124 | |                                  name = bit_range_row.name,
[INFO] [stdout] ...   |
[INFO] [stdout] 127 | |                                  bitwidth = self.descriptor.column_width(BitRangeElement::Bits),
[INFO] [stdout] 128 | |                                  bit_is_set = is_set_indicator);
[INFO] [stdout]     | |_______________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `byte_order` is never read
[INFO] [stdout]   --> spcregs/src/register_descriptor.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct RegisterDescriptor {
[INFO] [stdout]    |            ------------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 15 |     byte_order: ByteOrder,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RegisterDescriptor` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> spcregs/src/register.rs:81:21
[INFO] [stdout]    |
[INFO] [stdout] 81 |                     write!(f, " ");
[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)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> spcregs/src/register.rs:84:29
[INFO] [stdout]    |
[INFO] [stdout] 84 | ...                   write!(f, "{}", vert_char);
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> spcregs/src/register.rs:86:29
[INFO] [stdout]    |
[INFO] [stdout] 86 | ...                   write!(f, " ");
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> spcregs/src/register.rs:89:29
[INFO] [stdout]    |
[INFO] [stdout] 89 | ...                   write!(f, " ");
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> spcregs/src/register.rs:92:21
[INFO] [stdout]    |
[INFO] [stdout] 92 |                     writeln!(f);
[INFO] [stdout]    |                     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `$crate::write` which comes from the expansion of the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> spcregs/src/register.rs:97:25
[INFO] [stdout]    |
[INFO] [stdout] 97 |                         write!(f, " ");
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> spcregs/src/register.rs:102:33
[INFO] [stdout]     |
[INFO] [stdout] 102 | ...                   write!(f, "{}", edge_char);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> spcregs/src/register.rs:108:41
[INFO] [stdout]     |
[INFO] [stdout] 108 | ...                   write!(f, "{}", vert_char);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> spcregs/src/register.rs:110:41
[INFO] [stdout]     |
[INFO] [stdout] 110 | ...                   write!(f, "{}", fill_char);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> spcregs/src/register.rs:113:37
[INFO] [stdout]     |
[INFO] [stdout] 113 | ...                   write!(f, "{}", fill_char);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> spcregs/src/register.rs:117:33
[INFO] [stdout]     |
[INFO] [stdout] 117 | ...                   write!(f, "{}", fill_char);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> spcregs/src/register.rs:121:25
[INFO] [stdout]     |
[INFO] [stdout] 121 | /                         writeln!(f, "{}{} {name:<namewidth$} ({bitnum:>bitwidth$}){bit_is_set}",
[INFO] [stdout] 122 | |                                  horiz_char,
[INFO] [stdout] 123 | |                                  horiz_char,
[INFO] [stdout] 124 | |                                  name = bit_range_row.name,
[INFO] [stdout] ...   |
[INFO] [stdout] 127 | |                                  bitwidth = self.descriptor.column_width(BitRangeElement::Bits),
[INFO] [stdout] 128 | |                                  bit_is_set = is_set_indicator);
[INFO] [stdout]     | |_______________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rustyline v13.0.0
[INFO] [stderr]     Checking sysprocalc v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `app_mode`
[INFO] [stdout]    --> src/main.rs:151:54
[INFO] [stdout]     |
[INFO] [stdout] 151 | fn evaluate_input(spcio: &mut SpcIo, str_expr: &str, app_mode: AppMode) -> std::io::Result<()> {
[INFO] [stdout]     |                                                      ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_app_mode`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `app_mode`
[INFO] [stdout]    --> src/main.rs:151:54
[INFO] [stdout]     |
[INFO] [stdout] 151 | fn evaluate_input(spcio: &mut SpcIo, str_expr: &str, app_mode: AppMode) -> std::io::Result<()> {
[INFO] [stdout]     |                                                      ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_app_mode`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:256:21
[INFO] [stdout]     |
[INFO] [stdout] 256 |                     write_reg_desc_title(spcio, &efer);
[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)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 256 |                     let _ = write_reg_desc_title(spcio, &efer);
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:256:21
[INFO] [stdout]     |
[INFO] [stdout] 256 |                     write_reg_desc_title(spcio, &efer);
[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)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 256 |                     let _ = write_reg_desc_title(spcio, &efer);
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:281:17
[INFO] [stdout]     |
[INFO] [stdout] 281 |                 editor.add_history_entry(input_expr);
[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] 281 |                 let _ = editor.add_history_entry(input_expr);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:281:17
[INFO] [stdout]     |
[INFO] [stdout] 281 |                 editor.add_history_entry(input_expr);
[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] 281 |                 let _ = editor.add_history_entry(input_expr);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.50s
[INFO] running `Command { std: "docker" "inspect" "0d50c4e02b3345d031f7ddcbf55ccbcf3a27c2f76795f52003a8329e0d175e5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d50c4e02b3345d031f7ddcbf55ccbcf3a27c2f76795f52003a8329e0d175e5a", kill_on_drop: false }`
[INFO] [stdout] 0d50c4e02b3345d031f7ddcbf55ccbcf3a27c2f76795f52003a8329e0d175e5a
