[INFO] cloning repository https://github.com/masuke5/beige
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/masuke5/beige" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmasuke5%2Fbeige", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmasuke5%2Fbeige'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fd5709e07c91fdc0667b7e8c348979bcff696a27
[INFO] checking masuke5/beige against master#c724b67e1b474262917a5154d74e7072267593fe for pr-74315
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmasuke5%2Fbeige" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/masuke5/beige on toolchain c724b67e1b474262917a5154d74e7072267593fe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/masuke5/beige
[INFO] finished tweaking git repo https://github.com/masuke5/beige
[INFO] tweaked toml for git repo https://github.com/masuke5/beige written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/masuke5/beige already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1e12fc52ceed2f5c3cd16b3f4d235ad2b3174b31f698628684e80680a5e06418
[INFO] running `Command { std: "docker" "start" "-a" "1e12fc52ceed2f5c3cd16b3f4d235ad2b3174b31f698628684e80680a5e06418", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e12fc52ceed2f5c3cd16b3f4d235ad2b3174b31f698628684e80680a5e06418", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e12fc52ceed2f5c3cd16b3f4d235ad2b3174b31f698628684e80680a5e06418", kill_on_drop: false }`
[INFO] [stdout] 1e12fc52ceed2f5c3cd16b3f4d235ad2b3174b31f698628684e80680a5e06418
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b902282e695419cf49f3bd7b3cd591df585bd59b9f9f3c9033c569f76c82554d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b902282e695419cf49f3bd7b3cd591df585bd59b9f9f3c9033c569f76c82554d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling syn v1.0.34
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking os_str_bytes v2.3.1
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking typed-arena v2.0.1
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling indexmap v1.4.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.1
[INFO] [stderr]     Checking clap v3.0.0-beta.1
[INFO] [stderr]     Checking beige v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout]   --> src/graph.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     value: T,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pred`
[INFO] [stdout]   --> src/graph.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pred: RefCell<Vec<&'a DirectedNode<'a, T>>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `succ`
[INFO] [stdout]   --> src/graph.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     succ: RefCell<Vec<&'a DirectedNode<'a, T>>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_to`
[INFO] [stdout]   --> src/graph.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn add_to(&'a mut self, node: &'a mut DirectedNode<'a, T>) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pred`
[INFO] [stdout]   --> src/graph.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn pred(&'a self) -> Ref<'a, Vec<&'a DirectedNode<'a, T>>> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `succ`
[INFO] [stdout]   --> src/graph.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn succ(&'a self) -> Ref<'a, Vec<&'a DirectedNode<'a, T>>> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout]   --> src/graph.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     value: T,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `adjacent`
[INFO] [stdout]   --> src/graph.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     adjacent: RefCell<Vec<&'a UndirectedNode<'a, T>>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_to`
[INFO] [stdout]   --> src/graph.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn add_to(&'a mut self, node: &'a mut UndirectedNode<'a, T>) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `adjacent`
[INFO] [stdout]   --> src/graph.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn adjacent(&'a self) -> Ref<'a, Vec<&'a UndirectedNode<'a, T>>> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `DirectedGraph`
[INFO] [stdout]   --> src/graph.rs:65:1
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub type DirectedGraph<'a, T> = Graph<'a, T, DirectedNode<'a, T>>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `UndirectedGraph`
[INFO] [stdout]   --> src/graph.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub type UndirectedGraph<'a, T> = Graph<'a, T, UndirectedNode<'a, T>>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Graph`
[INFO] [stdout]   --> src/graph.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub struct Graph<'a, T, N: Node<T>> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/graph.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert`
[INFO] [stdout]   --> src/graph.rs:81:12
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn insert(&'a mut self, value: T) -> &'a N {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `AddF`
[INFO] [stdout]   --> src/ir.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 87 |     AddF(Box<Expr>, Box<Expr>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SubF`
[INFO] [stdout]   --> src/ir.rs:88:5
[INFO] [stdout]    |
[INFO] [stdout] 88 |     SubF(Box<Expr>, Box<Expr>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `MulF`
[INFO] [stdout]   --> src/ir.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 89 |     MulF(Box<Expr>, Box<Expr>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `DivF`
[INFO] [stdout]   --> src/ir.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 90 |     DivF(Box<Expr>, Box<Expr>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Return`
[INFO] [stdout]    --> src/ir.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     Return(Expr),
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_unique`
[INFO] [stdout]   --> src/ty.rs:78:12
[INFO] [stdout]    |
[INFO] [stdout] 78 |     pub fn new_unique(&mut self) -> Unique {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout]   --> src/graph.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     value: T,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pred`
[INFO] [stdout]   --> src/graph.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pred: RefCell<Vec<&'a DirectedNode<'a, T>>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `succ`
[INFO] [stdout]   --> src/graph.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     succ: RefCell<Vec<&'a DirectedNode<'a, T>>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_to`
[INFO] [stdout]   --> src/graph.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn add_to(&'a mut self, node: &'a mut DirectedNode<'a, T>) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pred`
[INFO] [stdout]   --> src/graph.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn pred(&'a self) -> Ref<'a, Vec<&'a DirectedNode<'a, T>>> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `succ`
[INFO] [stdout]   --> src/graph.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn succ(&'a self) -> Ref<'a, Vec<&'a DirectedNode<'a, T>>> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout]   --> src/graph.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     value: T,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `adjacent`
[INFO] [stdout]   --> src/graph.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     adjacent: RefCell<Vec<&'a UndirectedNode<'a, T>>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_to`
[INFO] [stdout]   --> src/graph.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn add_to(&'a mut self, node: &'a mut UndirectedNode<'a, T>) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `adjacent`
[INFO] [stdout]   --> src/graph.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn adjacent(&'a self) -> Ref<'a, Vec<&'a UndirectedNode<'a, T>>> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `DirectedGraph`
[INFO] [stdout]   --> src/graph.rs:65:1
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub type DirectedGraph<'a, T> = Graph<'a, T, DirectedNode<'a, T>>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `UndirectedGraph`
[INFO] [stdout]   --> src/graph.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub type UndirectedGraph<'a, T> = Graph<'a, T, UndirectedNode<'a, T>>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Graph`
[INFO] [stdout]   --> src/graph.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub struct Graph<'a, T, N: Node<T>> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/graph.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert`
[INFO] [stdout]   --> src/graph.rs:81:12
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn insert(&'a mut self, value: T) -> &'a N {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `AddF`
[INFO] [stdout]   --> src/ir.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 87 |     AddF(Box<Expr>, Box<Expr>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SubF`
[INFO] [stdout]   --> src/ir.rs:88:5
[INFO] [stdout]    |
[INFO] [stdout] 88 |     SubF(Box<Expr>, Box<Expr>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `MulF`
[INFO] [stdout]   --> src/ir.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 89 |     MulF(Box<Expr>, Box<Expr>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `DivF`
[INFO] [stdout]   --> src/ir.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 90 |     DivF(Box<Expr>, Box<Expr>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Return`
[INFO] [stdout]    --> src/ir.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     Return(Expr),
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.54s
[INFO] running `Command { std: "docker" "inspect" "b902282e695419cf49f3bd7b3cd591df585bd59b9f9f3c9033c569f76c82554d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b902282e695419cf49f3bd7b3cd591df585bd59b9f9f3c9033c569f76c82554d", kill_on_drop: false }`
[INFO] [stdout] b902282e695419cf49f3bd7b3cd591df585bd59b9f9f3c9033c569f76c82554d