[INFO] cloning repository https://github.com/dlamei/Calcu-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dlamei/Calcu-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdlamei%2FCalcu-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdlamei%2FCalcu-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7207684362b9d9da17cf5be1b9a3fc7aca0a5a03
[INFO] checking dlamei/Calcu-rs against 895980e0290783bb09b1ccf1b11f14eb09b10430 for pr-160186
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdlamei%2FCalcu-rs" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/dlamei/Calcu-rs
[INFO] finished tweaking git repo https://github.com/dlamei/Calcu-rs
[INFO] tweaked toml for git repo https://github.com/dlamei/Calcu-rs written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dlamei/Calcu-rs on toolchain 895980e0290783bb09b1ccf1b11f14eb09b10430
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dlamei/Calcu-rs 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" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to highest compatible versions
[INFO] [stderr]     Updating proc-macro2 v1.0.86 -> v1.0.107
[INFO] [stderr]       Adding ref-cast v1.0.27
[INFO] [stderr]       Adding ref-cast-impl v1.0.27
[INFO] [stderr]       Adding syn v3.0.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "e953a6d22d01764381e26a80b88cd1443533100dd16800a754b01a083fe87db0", kill_on_drop: false }`
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[INFO] [stderr]    Compiling proc-macro2 v1.0.107
[INFO] [stderr]    Compiling serde v1.0.214
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]    Compiling serde_json v1.0.132
[INFO] [stderr]    Compiling libm v0.2.8
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[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
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[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling beef v0.5.2
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[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling malachite-nz v0.4.15
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling ref-cast v1.0.27
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]     Checking anstream v0.6.18
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[INFO] [stderr]    Compiling syn v2.0.85
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[INFO] [stderr]    Compiling calcurs_macros v0.1.0 (/opt/rustwide/workdir/macros)
[INFO] [stdout] warning: unused imports: `Ident` and `TokenTree`
[INFO] [stdout]  --> macros/src/lib.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use proc_macro2::{Ident, Span, TokenStream, TokenTree};
[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: `ToTokens`
[INFO] [stdout]  --> macros/src/lib.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 | use quote::{quote, ToTokens};
[INFO] [stdout]   |                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Attribute` and `self as punc`
[INFO] [stdout]  --> macros/src/lib.rs:7:18
[INFO] [stdout]   |
[INFO] [stdout] 7 |     punctuated::{self as punc, Punctuated},
[INFO] [stdout]   |                  ^^^^^^^^^^^^
[INFO] [stdout] 8 |     token, Attribute, Token,
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `proc_macro2::TokenStream`
[INFO] [stdout]  --> macros/src/rubi.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use proc_macro2::TokenStream;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `quote::quote`
[INFO] [stdout]  --> macros/src/rubi.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use quote::quote;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `function_name`
[INFO] [stdout]   --> macros/src/rubi.rs:30:14
[INFO] [stdout]    |
[INFO] [stdout] 30 | macro_rules! function_name {
[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: `trace`
[INFO] [stdout]   --> macros/src/rubi.rs:48:14
[INFO] [stdout]    |
[INFO] [stdout] 48 | macro_rules! trace {
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking malachite-q v0.4.15
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> macros/src/rubi.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 |     fmt::{self, Write},
[INFO] [stdout]   |                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kind`
[INFO] [stdout]    --> macros/src/rubi.rs:521:30
[INFO] [stdout]     |
[INFO] [stdout] 521 |             S::Scope(Scope { kind, vars, pat }) => {
[INFO] [stdout]     |                              ^^^^ help: try ignoring the field: `kind: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking malachite v0.4.15
[INFO] [stdout] warning: fields `ref_tok` and `comma` are never read
[INFO] [stdout]    --> macros/src/lib.rs:259:5
[INFO] [stdout]     |
[INFO] [stdout] 258 | struct ArithOpsArgs {
[INFO] [stdout]     |        ------------ fields in this struct
[INFO] [stdout] 259 |     ref_tok: syn::Token![ref],
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 260 |     comma: syn::Token![,],
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_op` is never used
[INFO] [stdout]    --> macros/src/rubi.rs:234:14
[INFO] [stdout]     |
[INFO] [stdout] 217 | impl Wolfram {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 234 |     const fn is_op(&self) -> bool {
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `for_each` is never used
[INFO] [stdout]    --> macros/src/rubi.rs:275:8
[INFO] [stdout]     |
[INFO] [stdout] 274 | impl FuncDef {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] 275 |     fn for_each<F>(&self, f: F)
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `for_each` is never used
[INFO] [stdout]    --> macros/src/rubi.rs:285:8
[INFO] [stdout]     |
[INFO] [stdout] 284 | impl FuncCall {
[INFO] [stdout]     | ------------- method in this implementation
[INFO] [stdout] 285 |     fn for_each<F>(&self, f: F)
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `for_each` is never used
[INFO] [stdout]    --> macros/src/rubi.rs:294:8
[INFO] [stdout]     |
[INFO] [stdout] 293 | impl Pattern {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] 294 |     fn for_each<F>(&self, f: F)
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `for_each` is never used
[INFO] [stdout]    --> macros/src/rubi.rs:391:8
[INFO] [stdout]     |
[INFO] [stdout] 390 | impl List {
[INFO] [stdout]     | --------- method in this implementation
[INFO] [stdout] 391 |     fn for_each<F>(&self, f: F)
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `for_each` is never used
[INFO] [stdout]    --> macros/src/rubi.rs:493:8
[INFO] [stdout]     |
[INFO] [stdout] 492 | impl SymExpr {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] 493 |     fn for_each<F>(&self, f: F)
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `func_calls` and `builtin_func_calls` are never used
[INFO] [stdout]    --> macros/src/rubi.rs:619:8
[INFO] [stdout]     |
[INFO] [stdout] 589 | impl WolframContext {
[INFO] [stdout]     | ------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 619 |     fn func_calls(&self) -> Vec<String> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 623 |     fn builtin_func_calls(&self) -> Vec<String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `func_defs_glob`, `builtin_fns_glob`, and `builtin_fns_from` are never used
[INFO] [stdout]    --> macros/src/rubi.rs:687:8
[INFO] [stdout]     |
[INFO] [stdout] 660 | impl WolframFiles {
[INFO] [stdout]     | ----------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 687 |     fn func_defs_glob(&self) -> HashMap<String, Vec<FuncDef>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 701 |     fn builtin_fns_glob(&self) -> HashSet<String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 705 |     fn builtin_fns_from(&self, span: ops::Range<usize>) -> HashSet<String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `assert` is never used
[INFO] [stdout]    --> macros/src/rubi.rs:840:8
[INFO] [stdout]     |
[INFO] [stdout] 752 | impl Parser {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 840 |     fn assert(&mut self, expected: &Wolfram) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking calcu-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Int`
[INFO] [stdout]  --> src/algos.rs:5:32
[INFO] [stdout]   |
[INFO] [stdout] 5 |     rational::{binomial_coeff, Int, Rational},
[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 imports: `cmp::Ordering` and `str::FromStr`
[INFO] [stdout]  --> src/rational.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cmp::Ordering, ops, str::FromStr};
[INFO] [stdout]   |           ^^^^^^^^^^^^^       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ref_cast::RefCast`
[INFO] [stdout]  --> src/rational.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use ref_cast::RefCast;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> src/transforms.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `during_debug`
[INFO] [stdout]   --> src/utils.rs:13:14
[INFO] [stdout]    |
[INFO] [stdout] 13 | macro_rules! during_debug {
[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: `function_name`
[INFO] [stdout]   --> src/utils.rs:20:14
[INFO] [stdout]    |
[INFO] [stdout] 20 | macro_rules! function_name {
[INFO] [stdout]    |              ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `trace_fn`
[INFO] [stdout]   --> src/utils.rs:38:14
[INFO] [stdout]    |
[INFO] [stdout] 38 | macro_rules! trace_fn {
[INFO] [stdout]    |              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Int`
[INFO] [stdout]  --> src/algos.rs:5:32
[INFO] [stdout]   |
[INFO] [stdout] 5 |     rational::{binomial_coeff, Int, Rational},
[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 imports: `cmp::Ordering` and `str::FromStr`
[INFO] [stdout]  --> src/rational.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cmp::Ordering, ops, str::FromStr};
[INFO] [stdout]   |           ^^^^^^^^^^^^^       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ref_cast::RefCast`
[INFO] [stdout]  --> src/rational.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use ref_cast::RefCast;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> src/transforms.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `during_debug`
[INFO] [stdout]   --> src/utils.rs:13:14
[INFO] [stdout]    |
[INFO] [stdout] 13 | macro_rules! during_debug {
[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: `function_name`
[INFO] [stdout]   --> src/utils.rs:20:14
[INFO] [stdout]    |
[INFO] [stdout] 20 | macro_rules! function_name {
[INFO] [stdout]    |              ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `trace_fn`
[INFO] [stdout]   --> src/utils.rs:38:14
[INFO] [stdout]    |
[INFO] [stdout] 38 | macro_rules! trace_fn {
[INFO] [stdout]    |              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/algos.rs:893:22
[INFO] [stdout]     |
[INFO] [stdout] 893 |             for (op, name) in &operations {
[INFO] [stdout]     |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/algos.rs:893:22
[INFO] [stdout]     |
[INFO] [stdout] 893 |             for (op, name) in &operations {
[INFO] [stdout]     |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/atom.rs:706:42
[INFO] [stdout]     |
[INFO] [stdout] 706 | fn expr_as_cmp_slice<'a>(e: &'a Expr) -> &[Expr] {
[INFO] [stdout]     |                              --          ^^^^^^^ the same lifetime is elided here
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              the lifetime is named 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: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 706 | fn expr_as_cmp_slice<'a>(e: &'a Expr) -> &'a [Expr] {
[INFO] [stdout]     |                                           ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/atom.rs:706:42
[INFO] [stdout]     |
[INFO] [stdout] 706 | fn expr_as_cmp_slice<'a>(e: &'a Expr) -> &[Expr] {
[INFO] [stdout]     |                              --          ^^^^^^^ the same lifetime is elided here
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              the lifetime is named 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: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 706 | fn expr_as_cmp_slice<'a>(e: &'a Expr) -> &'a [Expr] {
[INFO] [stdout]     |                                           ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused dependency `malachite`
[INFO] [stderr]  --> Cargo.toml:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | malachite = "0.4.15"
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `malachite`
[INFO] [stderr] warning: `calcu-rs` (manifest) generated 1 warning
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 33.44s
[INFO] running `Command { std: "docker" "inspect" "e953a6d22d01764381e26a80b88cd1443533100dd16800a754b01a083fe87db0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e953a6d22d01764381e26a80b88cd1443533100dd16800a754b01a083fe87db0", kill_on_drop: false }`
[INFO] [stdout] e953a6d22d01764381e26a80b88cd1443533100dd16800a754b01a083fe87db0
