[INFO] cloning repository https://github.com/mvojacek/rust-expr-calc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mvojacek/rust-expr-calc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmvojacek%2Frust-expr-calc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmvojacek%2Frust-expr-calc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fe285145034d08d383d362c3f5f6c61aa72daf6c
[INFO] checking mvojacek/rust-expr-calc against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmvojacek%2Frust-expr-calc" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mvojacek/rust-expr-calc on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mvojacek/rust-expr-calc
[INFO] finished tweaking git repo https://github.com/mvojacek/rust-expr-calc
[INFO] tweaked toml for git repo https://github.com/mvojacek/rust-expr-calc written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/mvojacek/rust-expr-calc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-bigint v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7bc9f3a7346d0180695850e2ada996b67846a2fc0bb7f10820865ae499c2aa40
[INFO] running `Command { std: "docker" "start" "-a" "7bc9f3a7346d0180695850e2ada996b67846a2fc0bb7f10820865ae499c2aa40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7bc9f3a7346d0180695850e2ada996b67846a2fc0bb7f10820865ae499c2aa40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bc9f3a7346d0180695850e2ada996b67846a2fc0bb7f10820865ae499c2aa40", kill_on_drop: false }`
[INFO] [stdout] 7bc9f3a7346d0180695850e2ada996b67846a2fc0bb7f10820865ae499c2aa40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b8c623e6d7f7445b66d8b22a2696660635e6f815a855cd90b92e6ae9c530dec
[INFO] running `Command { std: "docker" "start" "-a" "0b8c623e6d7f7445b66d8b22a2696660635e6f815a855cd90b92e6ae9c530dec", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]     Checking num-bigint v0.2.2
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking rustplay v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/nodelinkedlist.rs:347:42
[INFO] [stdout]     |
[INFO] [stdout] 347 |         let mut n: [Node<i32>; 4] = mem::uninitialized();
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]        Fixed src/asdebug.rs (2 fixes)
[INFO] [stderr]        Fixed src/main.rs (13 fixes)
[INFO] [stderr]        Fixed src/nodelinkedlist.rs (2 fixes)
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/nodelinkedlist.rs:347:42
[INFO] [stdout]     |
[INFO] [stdout] 347 |         let mut n: [Node<i32>; 4] = mem::uninitialized();
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert_before_node`
[INFO] [stdout]    --> src/nodelinkedlist.rs:133:12
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pub fn insert_before_node(self, node: &Self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert_before`
[INFO] [stdout]    --> src/nodelinkedlist.rs:146:12
[INFO] [stdout]     |
[INFO] [stdout] 146 |     pub fn insert_before(&self, val: T) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `split_after`
[INFO] [stdout]    --> src/nodelinkedlist.rs:166:12
[INFO] [stdout]     |
[INFO] [stdout] 166 |     pub fn split_after(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `split_before`
[INFO] [stdout]    --> src/nodelinkedlist.rs:173:12
[INFO] [stdout]     |
[INFO] [stdout] 173 |     pub fn split_before(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `iter_walk_val`
[INFO] [stdout]    --> src/nodelinkedlist.rs:209:12
[INFO] [stdout]     |
[INFO] [stdout] 209 |     pub fn iter_walk_val(&self) -> WalkingIterVal<T> where T: Clone {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `list_iter_back`
[INFO] [stdout]    --> src/nodelinkedlist.rs:217:12
[INFO] [stdout]     |
[INFO] [stdout] 217 |     pub fn list_iter_back(&self) -> Chain<Once<Self>, WalkingIterBack<T>> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `list_iter_val`
[INFO] [stdout]    --> src/nodelinkedlist.rs:221:12
[INFO] [stdout]     |
[INFO] [stdout] 221 |     pub fn list_iter_val(&self) -> Chain<Once<T>, WalkingIterVal<T>> where T: Clone {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `tail`
[INFO] [stdout]    --> src/nodelinkedlist.rs:227:12
[INFO] [stdout]     |
[INFO] [stdout] 227 |     pub fn tail(&self) -> Self {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `head`
[INFO] [stdout]    --> src/nodelinkedlist.rs:231:12
[INFO] [stdout]     |
[INFO] [stdout] 231 |     pub fn head(&self) -> Self {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `list_distance`
[INFO] [stdout]    --> src/nodelinkedlist.rs:239:12
[INFO] [stdout]     |
[INFO] [stdout] 239 |     pub fn list_distance(&self, following: &Self) -> Option<usize> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `list_find`
[INFO] [stdout]    --> src/nodelinkedlist.rs:244:12
[INFO] [stdout]     |
[INFO] [stdout] 244 |     pub fn list_find(&self, other: &Self) -> Option<(bool, usize)> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `list_append_node`
[INFO] [stdout]    --> src/nodelinkedlist.rs:252:12
[INFO] [stdout]     |
[INFO] [stdout] 252 |     pub fn list_append_node(&self, node: &Self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `list_append`
[INFO] [stdout]    --> src/nodelinkedlist.rs:256:12
[INFO] [stdout]     |
[INFO] [stdout] 256 |     pub fn list_append(&self, val: T) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `list_prepend_node`
[INFO] [stdout]    --> src/nodelinkedlist.rs:260:12
[INFO] [stdout]     |
[INFO] [stdout] 260 |     pub fn list_prepend_node(&self, node: &Self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `list_prepend`
[INFO] [stdout]    --> src/nodelinkedlist.rs:264:12
[INFO] [stdout]     |
[INFO] [stdout] 264 |     pub fn list_prepend(&self, val: T) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `make_linkedlist_for_tests`
[INFO] [stdout]    --> src/nodelinkedlist.rs:345:4
[INFO] [stdout]     |
[INFO] [stdout] 345 | fn make_linkedlist_for_tests() -> [Node<i32>; 4] {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `calculate10`
[INFO] [stdout]    --> src/main.rs:125:4
[INFO] [stdout]     |
[INFO] [stdout] 125 | fn calculate10<N: MyNum>(expr: &String) -> Result<N, (Option<usize>, CalcErr<N>)> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_num`
[INFO] [stdout]    --> src/main.rs:383:8
[INFO] [stdout]     |
[INFO] [stdout] 383 |     fn is_num(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_op`
[INFO] [stdout]    --> src/main.rs:389:8
[INFO] [stdout]     |
[INFO] [stdout] 389 |     fn is_op(&self) -> bool {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_paren`
[INFO] [stdout]    --> src/main.rs:395:8
[INFO] [stdout]     |
[INFO] [stdout] 395 |     fn is_paren(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]  --> src/asdebug.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(specialization, core_intrinsics)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be in the root module
[INFO] [stdout]  --> src/asdebug.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(specialization, core_intrinsics)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert_before`
[INFO] [stdout]    --> src/nodelinkedlist.rs:146:12
[INFO] [stdout]     |
[INFO] [stdout] 146 |     pub fn insert_before(&self, val: T) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `split_after`
[INFO] [stdout]    --> src/nodelinkedlist.rs:166:12
[INFO] [stdout]     |
[INFO] [stdout] 166 |     pub fn split_after(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `split_before`
[INFO] [stdout]    --> src/nodelinkedlist.rs:173:12
[INFO] [stdout]     |
[INFO] [stdout] 173 |     pub fn split_before(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `list_append_node`
[INFO] [stdout]    --> src/nodelinkedlist.rs:252:12
[INFO] [stdout]     |
[INFO] [stdout] 252 |     pub fn list_append_node(&self, node: &Self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `list_append`
[INFO] [stdout]    --> src/nodelinkedlist.rs:256:12
[INFO] [stdout]     |
[INFO] [stdout] 256 |     pub fn list_append(&self, val: T) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `list_prepend_node`
[INFO] [stdout]    --> src/nodelinkedlist.rs:260:12
[INFO] [stdout]     |
[INFO] [stdout] 260 |     pub fn list_prepend_node(&self, node: &Self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `list_prepend`
[INFO] [stdout]    --> src/nodelinkedlist.rs:264:12
[INFO] [stdout]     |
[INFO] [stdout] 264 |     pub fn list_prepend(&self, val: T) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_num`
[INFO] [stdout]    --> src/main.rs:383:8
[INFO] [stdout]     |
[INFO] [stdout] 383 |     fn is_num(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_op`
[INFO] [stdout]    --> src/main.rs:389:8
[INFO] [stdout]     |
[INFO] [stdout] 389 |     fn is_op(&self) -> bool {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_paren`
[INFO] [stdout]    --> src/main.rs:395:8
[INFO] [stdout]     |
[INFO] [stdout] 395 |     fn is_paren(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]  --> src/asdebug.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(specialization, core_intrinsics)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be in the root module
[INFO] [stdout]  --> src/asdebug.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(specialization, core_intrinsics)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.44s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking rustplay v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/nodelinkedlist.rs:347:42
[INFO] [stdout]     |
[INFO] [stdout] 347 |         let mut n: [Node<i32>; 4] = mem::uninitialized();
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/nodelinkedlist.rs:347:42
[INFO] [stdout]     |
[INFO] [stdout] 347 |         let mut n: [Node<i32>; 4] = mem::uninitialized();
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert_before_node`
[INFO] [stdout]    --> src/nodelinkedlist.rs:133:12
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pub fn insert_before_node(self, node: &Self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert_before`
[INFO] [stdout]    --> src/nodelinkedlist.rs:146:12
[INFO] [stdout]     |
[INFO] [stdout] 146 |     pub fn insert_before(&self, val: T) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `split_after`
[INFO] [stdout]    --> src/nodelinkedlist.rs:166:12
[INFO] [stdout]     |
[INFO] [stdout] 166 |     pub fn split_after(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `split_before`
[INFO] [stdout]    --> src/nodelinkedlist.rs:173:12
[INFO] [stdout]     |
[INFO] [stdout] 173 |     pub fn split_before(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `iter_walk_val`
[INFO] [stdout]    --> src/nodelinkedlist.rs:209:12
[INFO] [stdout]     |
[INFO] [stdout] 209 |     pub fn iter_walk_val(&self) -> WalkingIterVal<T> where T: Clone {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `list_iter_back`
[INFO] [stdout]    --> src/nodelinkedlist.rs:217:12
[INFO] [stdout]     |
[INFO] [stdout] 217 |     pub fn list_iter_back(&self) -> Chain<Once<Self>, WalkingIterBack<T>> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `list_iter_val`
[INFO] [stdout]    --> src/nodelinkedlist.rs:221:12
[INFO] [stdout]     |
[INFO] [stdout] 221 |     pub fn list_iter_val(&self) -> Chain<Once<T>, WalkingIterVal<T>> where T: Clone {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `tail`
[INFO] [stdout]    --> src/nodelinkedlist.rs:227:12
[INFO] [stdout]     |
[INFO] [stdout] 227 |     pub fn tail(&self) -> Self {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `head`
[INFO] [stdout]    --> src/nodelinkedlist.rs:231:12
[INFO] [stdout]     |
[INFO] [stdout] 231 |     pub fn head(&self) -> Self {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `list_distance`
[INFO] [stdout]    --> src/nodelinkedlist.rs:239:12
[INFO] [stdout]     |
[INFO] [stdout] 239 |     pub fn list_distance(&self, following: &Self) -> Option<usize> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `list_find`
[INFO] [stdout]    --> src/nodelinkedlist.rs:244:12
[INFO] [stdout]     |
[INFO] [stdout] 244 |     pub fn list_find(&self, other: &Self) -> Option<(bool, usize)> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `list_append_node`
[INFO] [stdout]    --> src/nodelinkedlist.rs:252:12
[INFO] [stdout]     |
[INFO] [stdout] 252 |     pub fn list_append_node(&self, node: &Self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `list_append`
[INFO] [stdout]    --> src/nodelinkedlist.rs:256:12
[INFO] [stdout]     |
[INFO] [stdout] 256 |     pub fn list_append(&self, val: T) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `list_prepend_node`
[INFO] [stdout]    --> src/nodelinkedlist.rs:260:12
[INFO] [stdout]     |
[INFO] [stdout] 260 |     pub fn list_prepend_node(&self, node: &Self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `list_prepend`
[INFO] [stdout]    --> src/nodelinkedlist.rs:264:12
[INFO] [stdout]     |
[INFO] [stdout] 264 |     pub fn list_prepend(&self, val: T) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `make_linkedlist_for_tests`
[INFO] [stdout]    --> src/nodelinkedlist.rs:345:4
[INFO] [stdout]     |
[INFO] [stdout] 345 | fn make_linkedlist_for_tests() -> [Node<i32>; 4] {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `calculate10`
[INFO] [stdout]    --> src/main.rs:125:4
[INFO] [stdout]     |
[INFO] [stdout] 125 | fn calculate10<N: MyNum>(expr: &String) -> Result<N, (Option<usize>, CalcErr<N>)> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_num`
[INFO] [stdout]    --> src/main.rs:383:8
[INFO] [stdout]     |
[INFO] [stdout] 383 |     fn is_num(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_op`
[INFO] [stdout]    --> src/main.rs:389:8
[INFO] [stdout]     |
[INFO] [stdout] 389 |     fn is_op(&self) -> bool {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_paren`
[INFO] [stdout]    --> src/main.rs:395:8
[INFO] [stdout]     |
[INFO] [stdout] 395 |     fn is_paren(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]  --> src/asdebug.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(specialization, core_intrinsics)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be in the root module
[INFO] [stdout]  --> src/asdebug.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(specialization, core_intrinsics)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert_before`
[INFO] [stdout]    --> src/nodelinkedlist.rs:146:12
[INFO] [stdout]     |
[INFO] [stdout] 146 |     pub fn insert_before(&self, val: T) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `split_after`
[INFO] [stdout]    --> src/nodelinkedlist.rs:166:12
[INFO] [stdout]     |
[INFO] [stdout] 166 |     pub fn split_after(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `split_before`
[INFO] [stdout]    --> src/nodelinkedlist.rs:173:12
[INFO] [stdout]     |
[INFO] [stdout] 173 |     pub fn split_before(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `list_append_node`
[INFO] [stdout]    --> src/nodelinkedlist.rs:252:12
[INFO] [stdout]     |
[INFO] [stdout] 252 |     pub fn list_append_node(&self, node: &Self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `list_append`
[INFO] [stdout]    --> src/nodelinkedlist.rs:256:12
[INFO] [stdout]     |
[INFO] [stdout] 256 |     pub fn list_append(&self, val: T) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `list_prepend_node`
[INFO] [stdout]    --> src/nodelinkedlist.rs:260:12
[INFO] [stdout]     |
[INFO] [stdout] 260 |     pub fn list_prepend_node(&self, node: &Self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `list_prepend`
[INFO] [stdout]    --> src/nodelinkedlist.rs:264:12
[INFO] [stdout]     |
[INFO] [stdout] 264 |     pub fn list_prepend(&self, val: T) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_num`
[INFO] [stdout]    --> src/main.rs:383:8
[INFO] [stdout]     |
[INFO] [stdout] 383 |     fn is_num(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_op`
[INFO] [stdout]    --> src/main.rs:389:8
[INFO] [stdout]     |
[INFO] [stdout] 389 |     fn is_op(&self) -> bool {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_paren`
[INFO] [stdout]    --> src/main.rs:395:8
[INFO] [stdout]     |
[INFO] [stdout] 395 |     fn is_paren(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]  --> src/asdebug.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(specialization, core_intrinsics)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be in the root module
[INFO] [stdout]  --> src/asdebug.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(specialization, core_intrinsics)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "0b8c623e6d7f7445b66d8b22a2696660635e6f815a855cd90b92e6ae9c530dec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b8c623e6d7f7445b66d8b22a2696660635e6f815a855cd90b92e6ae9c530dec", kill_on_drop: false }`
[INFO] [stdout] 0b8c623e6d7f7445b66d8b22a2696660635e6f815a855cd90b92e6ae9c530dec