[INFO] fetching crate YieldSimRust 0.1.2...
[INFO] checking YieldSimRust-0.1.2 against master#4008bbdf34b583ce44a467043aae3703afc0a76f for pr-129249-2
[INFO] extracting crate YieldSimRust 0.1.2 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate YieldSimRust 0.1.2
[INFO] finished tweaking crates.io crate YieldSimRust 0.1.2
[INFO] tweaked toml for crates.io crate YieldSimRust 0.1.2 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate YieldSimRust 0.1.2 on toolchain 4008bbdf34b583ce44a467043aae3703afc0a76f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4008bbdf34b583ce44a467043aae3703afc0a76f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate YieldSimRust 0.1.2 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" "+4008bbdf34b583ce44a467043aae3703afc0a76f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 097c15630e0b16204b494d12ad63fcb0e1b5e663bd49dee36b386e6287f4ff19
[INFO] running `Command { std: "docker" "start" "097c15630e0b16204b494d12ad63fcb0e1b5e663bd49dee36b386e6287f4ff19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "097c15630e0b16204b494d12ad63fcb0e1b5e663bd49dee36b386e6287f4ff19" "/opt/rustwide/cargo-home/bin/cargo" "+4008bbdf34b583ce44a467043aae3703afc0a76f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "097c15630e0b16204b494d12ad63fcb0e1b5e663bd49dee36b386e6287f4ff19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "097c15630e0b16204b494d12ad63fcb0e1b5e663bd49dee36b386e6287f4ff19" "/opt/rustwide/cargo-home/bin/cargo" "+4008bbdf34b583ce44a467043aae3703afc0a76f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking YieldSimRust v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/annealer/anneal.rs:248:13
[INFO] [stdout]     |
[INFO] [stdout] 248 |         let mut new_f: Vec<f64> = (0..chip.qubit_num)
[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 does not need to be mutable
[INFO] [stdout]    --> src/annealer/anneal.rs:251:17
[INFO] [stdout]     |
[INFO] [stdout] 251 |         let (_, mut temp_yield_rate) =
[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/annealer/base_line.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut f: Vec<f64> = vec![5.00, 5.07, 5.13, 5.20, 5.27, 5.00];
[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/annealer/anneal.rs:248:13
[INFO] [stdout]     |
[INFO] [stdout] 248 |         let mut new_f: Vec<f64> = (0..chip.qubit_num)
[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 does not need to be mutable
[INFO] [stdout]    --> src/annealer/anneal.rs:251:17
[INFO] [stdout]     |
[INFO] [stdout] 251 |         let (_, mut temp_yield_rate) =
[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/annealer/base_line.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let mut f: Vec<f64> = vec![5.00, 5.07, 5.13, 5.20, 5.27, 5.00, 5.07, 5.13, 5.20, 5.27];
[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/annealer/base_line.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let mut f: Vec<f64> = vec![
[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/annealer/base_line.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let mut f: Vec<f64> = vec![
[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/annealer/base_line.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut f: Vec<f64> = vec![5.00, 5.07, 5.13, 5.20, 5.27, 5.00];
[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/annealer/base_line.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |     let mut f: Vec<f64> = vec![
[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/annealer/base_line.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |     let mut f: Vec<f64> = vec![
[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/annealer/base_line.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let mut f: Vec<f64> = vec![5.00, 5.07, 5.13, 5.20, 5.27, 5.00, 5.07, 5.13, 5.20, 5.27];
[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/annealer/base_line.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let mut f: Vec<f64> = vec![
[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/annealer/base_line.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let mut f: Vec<f64> = vec![
[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/annealer/brute_force.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 |             let mut f = vec![*i1, *i2];
[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/annealer/base_line.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |     let mut f: Vec<f64> = vec![
[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/annealer/base_line.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |     let mut f: Vec<f64> = vec![
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `counter` is assigned to, but never used
[INFO] [stdout]   --> src/annealer/brute_force.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut counter: i64 = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_counter` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `running_f` is assigned to, but never used
[INFO] [stdout]   --> src/annealer/brute_force.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut running_f: Vec<f64> = vec![];
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_running_f` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `counter` is never read
[INFO] [stdout]   --> src/annealer/brute_force.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |             counter += 1;
[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: value assigned to `running_f` is never read
[INFO] [stdout]   --> src/annealer/brute_force.rs:22:17
[INFO] [stdout]    |
[INFO] [stdout] 22 |                 running_f = f;
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/annealer/brute_force.rs:42:21
[INFO] [stdout]    |
[INFO] [stdout] 42 |                 let mut f = vec![*i1, *i2, *i3];
[INFO] [stdout]    |                     ----^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `counter` is assigned to, but never used
[INFO] [stdout]   --> src/annealer/brute_force.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let mut counter: i64 = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_counter` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/annealer/brute_force.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 |             let mut f = vec![*i1, *i2];
[INFO] [stdout]    |                 ----^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `counter` is assigned to, but never used
[INFO] [stdout]   --> src/annealer/brute_force.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut counter: i64 = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_counter` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `running_f` is assigned to, but never used
[INFO] [stdout]   --> src/annealer/brute_force.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut running_f: Vec<f64> = vec![];
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_running_f` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `running_f` is assigned to, but never used
[INFO] [stdout]   --> src/annealer/brute_force.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let mut running_f: Vec<f64> = vec![];
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_running_f` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `counter` is never read
[INFO] [stdout]   --> src/annealer/brute_force.rs:50:17
[INFO] [stdout]    |
[INFO] [stdout] 50 |                 counter += 1;
[INFO] [stdout]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `running_f` is never read
[INFO] [stdout]   --> src/annealer/brute_force.rs:48:21
[INFO] [stdout]    |
[INFO] [stdout] 48 |                     running_f = f;
[INFO] [stdout]    |                     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `counter` is never read
[INFO] [stdout]   --> src/annealer/brute_force.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |             counter += 1;
[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: value assigned to `running_f` is never read
[INFO] [stdout]   --> src/annealer/brute_force.rs:22:17
[INFO] [stdout]    |
[INFO] [stdout] 22 |                 running_f = f;
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/annealer/brute_force.rs:70:25
[INFO] [stdout]    |
[INFO] [stdout] 70 |                     let mut f = vec![*i1, *i2, *i3, *i4];
[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/annealer/brute_force.rs:42:21
[INFO] [stdout]    |
[INFO] [stdout] 42 |                 let mut f = vec![*i1, *i2, *i3];
[INFO] [stdout]    |                     ----^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `counter` is assigned to, but never used
[INFO] [stdout]   --> src/annealer/brute_force.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let mut counter: i64 = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_counter` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `running_f` is assigned to, but never used
[INFO] [stdout]   --> src/annealer/brute_force.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let mut running_f: Vec<f64> = vec![];
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_running_f` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `counter` is never read
[INFO] [stdout]   --> src/annealer/brute_force.rs:50:17
[INFO] [stdout]    |
[INFO] [stdout] 50 |                 counter += 1;
[INFO] [stdout]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `running_f` is never read
[INFO] [stdout]   --> src/annealer/brute_force.rs:48:21
[INFO] [stdout]    |
[INFO] [stdout] 48 |                     running_f = f;
[INFO] [stdout]    |                     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `counter` is assigned to, but never used
[INFO] [stdout]   --> src/annealer/brute_force.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let mut counter: i64 = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_counter` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `running_f` is assigned to, but never used
[INFO] [stdout]   --> src/annealer/brute_force.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |     let mut running_f: Vec<f64> = vec![];
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_running_f` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `counter` is never read
[INFO] [stdout]   --> src/annealer/brute_force.rs:78:21
[INFO] [stdout]    |
[INFO] [stdout] 78 |                     counter += 1;
[INFO] [stdout]    |                     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `running_f` is never read
[INFO] [stdout]   --> src/annealer/brute_force.rs:76:25
[INFO] [stdout]    |
[INFO] [stdout] 76 |                         running_f = f;
[INFO] [stdout]    |                         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/annealer/brute_force.rs:70:25
[INFO] [stdout]    |
[INFO] [stdout] 70 |                     let mut f = vec![*i1, *i2, *i3, *i4];
[INFO] [stdout]    |                         ----^
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `counter` is assigned to, but never used
[INFO] [stdout]   --> src/annealer/brute_force.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let mut counter: i64 = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_counter` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `running_f` is assigned to, but never used
[INFO] [stdout]   --> src/annealer/brute_force.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |     let mut running_f: Vec<f64> = vec![];
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_running_f` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `counter` is never read
[INFO] [stdout]   --> src/annealer/brute_force.rs:78:21
[INFO] [stdout]    |
[INFO] [stdout] 78 |                     counter += 1;
[INFO] [stdout]    |                     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `running_f` is never read
[INFO] [stdout]   --> src/annealer/brute_force.rs:76:25
[INFO] [stdout]    |
[INFO] [stdout] 76 |                         running_f = f;
[INFO] [stdout]    |                         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/annealer/brute_force.rs:101:33
[INFO] [stdout]     |
[INFO] [stdout] 101 | ...                   let mut f = vec![*i1, *i2, *i3, *i4, *i5, *i6];
[INFO] [stdout]     |                           ----^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `running_f` is assigned to, but never used
[INFO] [stdout]   --> src/annealer/brute_force.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |     let mut running_f: Vec<f64> = vec![];
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_running_f` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `running_f` is never read
[INFO] [stdout]    --> src/annealer/brute_force.rs:110:33
[INFO] [stdout]     |
[INFO] [stdout] 110 | ...                   running_f = f;
[INFO] [stdout]     |                       ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/annealer/brute_force.rs:101:33
[INFO] [stdout]     |
[INFO] [stdout] 101 | ...                   let mut f = vec![*i1, *i2, *i3, *i4, *i5, *i6];
[INFO] [stdout]     |                           ----^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `running_f` is assigned to, but never used
[INFO] [stdout]   --> src/annealer/brute_force.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |     let mut running_f: Vec<f64> = vec![];
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_running_f` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `running_f` is never read
[INFO] [stdout]    --> src/annealer/brute_force.rs:110:33
[INFO] [stdout]     |
[INFO] [stdout] 110 | ...                   running_f = f;
[INFO] [stdout]     |                       ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     for i in 0..100 {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `IBM17Q2B` should have a snake case name
[INFO] [stdout]   --> src/main.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let mut IBM17Q2B: chip_info::ChipInfo = chip_info::ChipInfo::new(
[INFO] [stdout]    |             ^^^^^^^^ help: convert the identifier to snake case: `ibm17_q2_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     for i in 0..100 {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `IBM17Q2B` should have a snake case name
[INFO] [stdout]   --> src/main.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let mut IBM17Q2B: chip_info::ChipInfo = chip_info::ChipInfo::new(
[INFO] [stdout]    |             ^^^^^^^^ help: convert the identifier to snake case: `ibm17_q2_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/helper.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     writeln!(file, "{}", yields_string.join("\n"));
[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] 53 |     let _ = writeln!(file, "{}", yields_string.join("\n"));
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/helper.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     writeln!(file, "{}", yields_string.join("\n"));
[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] 53 |     let _ = writeln!(file, "{}", yields_string.join("\n"));
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/helper.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 64 |     writeln!(file, "{}", final_string.join("\n"));
[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] 64 |     let _ = writeln!(file, "{}", final_string.join("\n"));
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/helper.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 64 |     writeln!(file, "{}", final_string.join("\n"));
[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] 64 |     let _ = writeln!(file, "{}", final_string.join("\n"));
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `number_of_trials` should have an upper case name
[INFO] [stdout]   --> src/simulation.rs:89:11
[INFO] [stdout]    |
[INFO] [stdout] 89 |     const number_of_trials: usize = 10000;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] help: convert the identifier to upper case
[INFO] [stdout]    |
[INFO] [stdout] 89 -     const number_of_trials: usize = 10000;
[INFO] [stdout] 89 +     const NUMBER_OF_TRIALS: usize = 10000;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `number_of_trials` should have an upper case name
[INFO] [stdout]   --> src/simulation.rs:89:11
[INFO] [stdout]    |
[INFO] [stdout] 89 |     const number_of_trials: usize = 10000;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] help: convert the identifier to upper case
[INFO] [stdout]    |
[INFO] [stdout] 89 -     const number_of_trials: usize = 10000;
[INFO] [stdout] 89 +     const NUMBER_OF_TRIALS: usize = 10000;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.17s
[INFO] running `Command { std: "docker" "inspect" "097c15630e0b16204b494d12ad63fcb0e1b5e663bd49dee36b386e6287f4ff19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "097c15630e0b16204b494d12ad63fcb0e1b5e663bd49dee36b386e6287f4ff19", kill_on_drop: false }`
[INFO] [stdout] 097c15630e0b16204b494d12ad63fcb0e1b5e663bd49dee36b386e6287f4ff19
