[INFO] cloning repository https://github.com/osekilab/CANDS
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/osekilab/CANDS" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fosekilab%2FCANDS", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fosekilab%2FCANDS'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f96af9fa7601af12dea9d94b6704edd30e91b44e
[INFO] checking osekilab/CANDS against master#4eb62535fc12dd1a63fd43a4173e224e79313c4d for pr-158816
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fosekilab%2FCANDS" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/osekilab/CANDS
[INFO] finished tweaking git repo https://github.com/osekilab/CANDS
[INFO] tweaked toml for git repo https://github.com/osekilab/CANDS written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/osekilab/CANDS on toolchain 4eb62535fc12dd1a63fd43a4173e224e79313c4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/osekilab/CANDS 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" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded once_cell v1.13.0
[INFO] [stderr]   Downloaded quote v1.0.19
[INFO] [stderr]   Downloaded semver v1.0.10
[INFO] [stderr]   Downloaded proc-macro2 v1.0.39
[INFO] [stderr]   Downloaded itertools v0.10.1
[INFO] [stderr]   Downloaded libc v0.2.104
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 2cf24b861c296170a53001eac8fc435f345ac7bf1f9a911a37845a3a7fd92e2b
[INFO] running `Command { std: "docker" "start" "2cf24b861c296170a53001eac8fc435f345ac7bf1f9a911a37845a3a7fd92e2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2cf24b861c296170a53001eac8fc435f345ac7bf1f9a911a37845a3a7fd92e2b", 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" "2cf24b861c296170a53001eac8fc435f345ac7bf1f9a911a37845a3a7fd92e2b" "/opt/rustwide/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2cf24b861c296170a53001eac8fc435f345ac7bf1f9a911a37845a3a7fd92e2b", 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" "2cf24b861c296170a53001eac8fc435f345ac7bf1f9a911a37845a3a7fd92e2b" "/opt/rustwide/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling libc v0.2.104
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking once_cell v1.13.0
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling quote v1.0.19
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling logwrap v0.1.0 (/opt/rustwide/workdir/subcrates/logwrap)
[INFO] [stdout] warning: unused variable: `has_receiver`
[INFO] [stdout]   --> subcrates/logwrap/src/lib.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let has_receiver = wrapper.sig.receiver().is_some();
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_has_receiver`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking cands v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused macro definition: `my_trace`
[INFO] [stdout]   --> src/utils.rs:52:14
[INFO] [stdout]    |
[INFO] [stdout] 52 | macro_rules! my_trace {
[INFO] [stdout]    |              ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `my_error`
[INFO] [stdout]   --> src/utils.rs:82:14
[INFO] [stdout]    |
[INFO] [stdout] 82 | macro_rules! my_error {
[INFO] [stdout]    |              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PhantomData`
[INFO] [stdout]  --> src/ops/mod.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::marker::{ PhantomData };
[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: `std::iter`
[INFO] [stdout]  --> src/ops/mod.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::iter;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/ops/mod.rs:152:24
[INFO] [stdout]     |
[INFO] [stdout] 152 |                     if (x2.is_complement_of::<T>(x1, so, w) ||
[INFO] [stdout]     |                        ^
[INFO] [stdout] 153 |                         x1.is_specifier_of::<T>(x2, so, w)) {
[INFO] [stdout]     |                                                           ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 152 ~                     if x2.is_complement_of::<T>(x1, so, w) ||
[INFO] [stdout] 153 ~                         x1.is_specifier_of::<T>(x2, so, w) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/ops/mod.rs:157:29
[INFO] [stdout]     |
[INFO] [stdout] 157 |                     else if (x1.is_complement_of::<T>(x2, so, w) ||
[INFO] [stdout]     |                             ^
[INFO] [stdout] 158 |                         x2.is_specifier_of::<T>(x1, so, w)) {
[INFO] [stdout]     |                                                           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 157 ~                     else if x1.is_complement_of::<T>(x2, so, w) ||
[INFO] [stdout] 158 ~                         x2.is_specifier_of::<T>(x1, so, w) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `w`
[INFO] [stdout]   --> src/deriv/mod.rs:98:14
[INFO] [stdout]    |
[INFO] [stdout] 98 | macro_rules! w {
[INFO] [stdout]    |              ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `my_error` and `my_trace`
[INFO] [stdout]   --> src/prelude.rs:16:15
[INFO] [stdout]    |
[INFO] [stdout] 16 |     inc, dec, my_trace, my_debug, my_info, my_error,
[INFO] [stdout]    |               ^^^^^^^^                     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `fset` and `fvec`
[INFO] [stdout]   --> src/prelude.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Feature, f, fset, fvec,
[INFO] [stdout]    |                 ^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `token_based_merge`
[INFO] [stdout]   --> src/prelude.rs:26:38
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub(crate) use crate::ops::{ select, token_based_merge, triggered_merge, is_strong_phase, transfer, cyclic_transfer };
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ContainedSyntacticObjects`, `ILanguage`, `Lexicon`, `UniversalGrammar`, `is_derivation`, `li`, `lit`, and `w`
[INFO] [stdout]   --> src/prelude.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     Lexicon, UniversalGrammar, ILanguage, Stage, is_derivation, Workspace, w,
[INFO] [stdout]    |     ^^^^^^^  ^^^^^^^^^^^^^^^^  ^^^^^^^^^         ^^^^^^^^^^^^^             ^
[INFO] [stdout] 29 |     li::{ LexicalItem, li },
[INFO] [stdout]    |                        ^^
[INFO] [stdout] 30 |     lit::{ LexicalItemToken, lit },
[INFO] [stdout]    |                              ^^^
[INFO] [stdout] 31 |     so::{ SyntacticObject, ContainedSyntacticObjects, SOPrefixFormatter, so },
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BasicTriggers`
[INFO] [stdout]   --> src/prelude.rs:33:43
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub(crate) use crate::labels::{ Triggers, BasicTriggers };
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `converges_ci`, `converges_sm`, and `converges`
[INFO] [stdout]   --> src/prelude.rs:34:31
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub(crate) use crate::conv::{ converges_ci, converges_sm, converges };
[INFO] [stdout]    |                               ^^^^^^^^^^^^  ^^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Deref`
[INFO] [stdout]  --> src/labels/mod.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::{ Deref };
[INFO] [stdout]   |                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `my_trace`
[INFO] [stdout]   --> src/utils.rs:52:14
[INFO] [stdout]    |
[INFO] [stdout] 52 | macro_rules! my_trace {
[INFO] [stdout]    |              ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `my_error`
[INFO] [stdout]   --> src/utils.rs:82:14
[INFO] [stdout]    |
[INFO] [stdout] 82 | macro_rules! my_error {
[INFO] [stdout]    |              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PhantomData`
[INFO] [stdout]  --> src/ops/mod.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::marker::{ PhantomData };
[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: `std::iter`
[INFO] [stdout]  --> src/ops/mod.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::iter;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/ops/mod.rs:152:24
[INFO] [stdout]     |
[INFO] [stdout] 152 |                     if (x2.is_complement_of::<T>(x1, so, w) ||
[INFO] [stdout]     |                        ^
[INFO] [stdout] 153 |                         x1.is_specifier_of::<T>(x2, so, w)) {
[INFO] [stdout]     |                                                           ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 152 ~                     if x2.is_complement_of::<T>(x1, so, w) ||
[INFO] [stdout] 153 ~                         x1.is_specifier_of::<T>(x2, so, w) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/ops/mod.rs:157:29
[INFO] [stdout]     |
[INFO] [stdout] 157 |                     else if (x1.is_complement_of::<T>(x2, so, w) ||
[INFO] [stdout]     |                             ^
[INFO] [stdout] 158 |                         x2.is_specifier_of::<T>(x1, so, w)) {
[INFO] [stdout]     |                                                           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 157 ~                     else if x1.is_complement_of::<T>(x2, so, w) ||
[INFO] [stdout] 158 ~                         x2.is_specifier_of::<T>(x1, so, w) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `my_error` and `my_trace`
[INFO] [stdout]   --> src/prelude.rs:16:15
[INFO] [stdout]    |
[INFO] [stdout] 16 |     inc, dec, my_trace, my_debug, my_info, my_error,
[INFO] [stdout]    |               ^^^^^^^^                     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `token_based_merge`
[INFO] [stdout]   --> src/prelude.rs:26:38
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub(crate) use crate::ops::{ select, token_based_merge, triggered_merge, is_strong_phase, transfer, cyclic_transfer };
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Lexicon`
[INFO] [stdout]   --> src/prelude.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     Lexicon, UniversalGrammar, ILanguage, Stage, is_derivation, Workspace, w,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `converges_ci` and `converges_sm`
[INFO] [stdout]   --> src/prelude.rs:34:31
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub(crate) use crate::conv::{ converges_ci, converges_sm, converges };
[INFO] [stdout]    |                               ^^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Deref`
[INFO] [stdout]  --> src/labels/mod.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::{ Deref };
[INFO] [stdout]   |                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ops/mod.rs:127:17
[INFO] [stdout]     |
[INFO] [stdout] 127 |             let mut pf1 = 
[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/ops/mod.rs:135:17
[INFO] [stdout]     |
[INFO] [stdout] 135 |             let mut pf2 =
[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/ops/mod.rs:213:62
[INFO] [stdout]     |
[INFO] [stdout] 213 | fn unwind_and_transfer<T: Triggers>(phase: &SyntacticObject, mut so: SyntacticObject, head: &SyntacticObject, w: &Workspace) -> Res...
[INFO] [stdout]     |                                                              ----^^
[INFO] [stdout]     |                                                              |
[INFO] [stdout]     |                                                              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w1`
[INFO] [stdout]    --> src/deriv/mod.rs:220:29
[INFO] [stdout]     |
[INFO] [stdout] 220 |     let Stage { la: la1, w: w1 } = stage1;
[INFO] [stdout]     |                             ^^ help: if this is intentional, prefix it with an underscore: `_w1`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `la2`
[INFO] [stdout]    --> src/deriv/mod.rs:221:21
[INFO] [stdout]     |
[INFO] [stdout] 221 |     let Stage { la: la2, w: w2 } = stage2;
[INFO] [stdout]     |                     ^^^ help: if this is intentional, prefix it with an underscore: `_la2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w2`
[INFO] [stdout]    --> src/deriv/mod.rs:221:29
[INFO] [stdout]     |
[INFO] [stdout] 221 |     let Stage { la: la2, w: w2 } = stage2;
[INFO] [stdout]     |                             ^^ help: if this is intentional, prefix it with an underscore: `_w2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ops/mod.rs:127:17
[INFO] [stdout]     |
[INFO] [stdout] 127 |             let mut pf1 = 
[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/ops/mod.rs:135:17
[INFO] [stdout]     |
[INFO] [stdout] 135 |             let mut pf2 =
[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/ops/mod.rs:213:62
[INFO] [stdout]     |
[INFO] [stdout] 213 | fn unwind_and_transfer<T: Triggers>(phase: &SyntacticObject, mut so: SyntacticObject, head: &SyntacticObject, w: &Workspace) -> Res...
[INFO] [stdout]     |                                                              ----^^
[INFO] [stdout]     |                                                              |
[INFO] [stdout]     |                                                              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `so2`
[INFO] [stdout]    --> src/deriv/mod.rs:438:35
[INFO] [stdout]     |
[INFO] [stdout] 438 |                         .filter(|(so2, so4)| {
[INFO] [stdout]     |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_so2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/deriv/so.rs:825:17
[INFO] [stdout]     |
[INFO] [stdout] 825 |             let b = so!(lit!(li!("B")));
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w1`
[INFO] [stdout]    --> src/deriv/mod.rs:220:29
[INFO] [stdout]     |
[INFO] [stdout] 220 |     let Stage { la: la1, w: w1 } = stage1;
[INFO] [stdout]     |                             ^^ help: if this is intentional, prefix it with an underscore: `_w1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `la2`
[INFO] [stdout]    --> src/deriv/mod.rs:221:21
[INFO] [stdout]     |
[INFO] [stdout] 221 |     let Stage { la: la2, w: w2 } = stage2;
[INFO] [stdout]     |                     ^^^ help: if this is intentional, prefix it with an underscore: `_la2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w2`
[INFO] [stdout]    --> src/deriv/mod.rs:221:29
[INFO] [stdout]     |
[INFO] [stdout] 221 |     let Stage { la: la2, w: w2 } = stage2;
[INFO] [stdout]     |                             ^^ help: if this is intentional, prefix it with an underscore: `_w2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ug`
[INFO] [stdout]    --> src/deriv/mod.rs:533:26
[INFO] [stdout]     |
[INFO] [stdout] 533 |     let ILanguage { lex, ug, .. } = il;
[INFO] [stdout]     |                          ^^ help: try ignoring the field: `ug: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `la1`
[INFO] [stdout]    --> src/deriv/mod.rs:566:25
[INFO] [stdout]     |
[INFO] [stdout] 566 |         let Stage { la: la1, w: w1 } = stage1;
[INFO] [stdout]     |                         ^^^ help: if this is intentional, prefix it with an underscore: `_la1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w1`
[INFO] [stdout]    --> src/deriv/mod.rs:566:33
[INFO] [stdout]     |
[INFO] [stdout] 566 |         let Stage { la: la1, w: w1 } = stage1;
[INFO] [stdout]     |                                 ^^ help: if this is intentional, prefix it with an underscore: `_w1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `la2`
[INFO] [stdout]    --> src/deriv/mod.rs:567:25
[INFO] [stdout]     |
[INFO] [stdout] 567 |         let Stage { la: la2, w: w2 } = stage2;
[INFO] [stdout]     |                         ^^^ help: if this is intentional, prefix it with an underscore: `_la2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w2`
[INFO] [stdout]    --> src/deriv/mod.rs:567:33
[INFO] [stdout]     |
[INFO] [stdout] 567 |         let Stage { la: la2, w: w2 } = stage2;
[INFO] [stdout]     |                                 ^^ help: if this is intentional, prefix it with an underscore: `_w2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `so2`
[INFO] [stdout]    --> src/deriv/mod.rs:438:35
[INFO] [stdout]     |
[INFO] [stdout] 438 |                         .filter(|(so2, so4)| {
[INFO] [stdout]     |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_so2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/deriv/mod.rs:139:26
[INFO] [stdout]     |
[INFO] [stdout] 139 |     pub fn contained_sos(&self, pic_compliant: bool) -> ContainedSyntacticObjects {
[INFO] [stdout]     |                          ^^^^^                          ^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 139 |     pub fn contained_sos(&self, pic_compliant: bool) -> ContainedSyntacticObjects<'_> {
[INFO] [stdout]     |                                                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/deriv/so.rs:218:26
[INFO] [stdout]     |
[INFO] [stdout] 218 |     pub fn contained_sos(&self, start_with_self: bool, pic_compliant: bool) -> ContainedSyntacticObjects {
[INFO] [stdout]     |                          ^^^^^ the lifetime is elided here                     ^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 218 |     pub fn contained_sos(&self, start_with_self: bool, pic_compliant: bool) -> ContainedSyntacticObjects<'_> {
[INFO] [stdout]     |                                                                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ug`
[INFO] [stdout]    --> src/deriv/mod.rs:533:26
[INFO] [stdout]     |
[INFO] [stdout] 533 |     let ILanguage { lex, ug, .. } = il;
[INFO] [stdout]     |                          ^^ help: try ignoring the field: `ug: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `la1`
[INFO] [stdout]    --> src/deriv/mod.rs:566:25
[INFO] [stdout]     |
[INFO] [stdout] 566 |         let Stage { la: la1, w: w1 } = stage1;
[INFO] [stdout]     |                         ^^^ help: if this is intentional, prefix it with an underscore: `_la1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w1`
[INFO] [stdout]    --> src/deriv/mod.rs:566:33
[INFO] [stdout]     |
[INFO] [stdout] 566 |         let Stage { la: la1, w: w1 } = stage1;
[INFO] [stdout]     |                                 ^^ help: if this is intentional, prefix it with an underscore: `_w1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `la2`
[INFO] [stdout]    --> src/deriv/mod.rs:567:25
[INFO] [stdout]     |
[INFO] [stdout] 567 |         let Stage { la: la2, w: w2 } = stage2;
[INFO] [stdout]     |                         ^^^ help: if this is intentional, prefix it with an underscore: `_la2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w2`
[INFO] [stdout]    --> src/deriv/mod.rs:567:33
[INFO] [stdout]     |
[INFO] [stdout] 567 |         let Stage { la: la2, w: w2 } = stage2;
[INFO] [stdout]     |                                 ^^ help: if this is intentional, prefix it with an underscore: `_w2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/deriv/mod.rs:139:26
[INFO] [stdout]     |
[INFO] [stdout] 139 |     pub fn contained_sos(&self, pic_compliant: bool) -> ContainedSyntacticObjects {
[INFO] [stdout]     |                          ^^^^^                          ^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 139 |     pub fn contained_sos(&self, pic_compliant: bool) -> ContainedSyntacticObjects<'_> {
[INFO] [stdout]     |                                                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/deriv/so.rs:218:26
[INFO] [stdout]     |
[INFO] [stdout] 218 |     pub fn contained_sos(&self, start_with_self: bool, pic_compliant: bool) -> ContainedSyntacticObjects {
[INFO] [stdout]     |                          ^^^^^ the lifetime is elided here                     ^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 218 |     pub fn contained_sos(&self, start_with_self: bool, pic_compliant: bool) -> ContainedSyntacticObjects<'_> {
[INFO] [stdout]     |                                                                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.32s
[INFO] running `Command { std: "docker" "inspect" "2cf24b861c296170a53001eac8fc435f345ac7bf1f9a911a37845a3a7fd92e2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cf24b861c296170a53001eac8fc435f345ac7bf1f9a911a37845a3a7fd92e2b", kill_on_drop: false }`
[INFO] [stdout] 2cf24b861c296170a53001eac8fc435f345ac7bf1f9a911a37845a3a7fd92e2b
