[INFO] cloning repository https://github.com/jeremieSimon/playing_w_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jeremieSimon/playing_w_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FjeremieSimon%2Fplaying_w_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FjeremieSimon%2Fplaying_w_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d2034699141faea9507f698097887d818f3cde5c
[INFO] checking jeremieSimon/playing_w_rust against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FjeremieSimon%2Fplaying_w_rust" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jeremieSimon/playing_w_rust 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/jeremieSimon/playing_w_rust
[INFO] finished tweaking git repo https://github.com/jeremieSimon/playing_w_rust
[INFO] tweaked toml for git repo https://github.com/jeremieSimon/playing_w_rust written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/jeremieSimon/playing_w_rust 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded derefable v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 5bc03937ebae0fc5829b89ca8b68617b4a3467c97ad0f58acfabb7ce23df01d0
[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" "5bc03937ebae0fc5829b89ca8b68617b4a3467c97ad0f58acfabb7ce23df01d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5bc03937ebae0fc5829b89ca8b68617b4a3467c97ad0f58acfabb7ce23df01d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bc03937ebae0fc5829b89ca8b68617b4a3467c97ad0f58acfabb7ce23df01d0", kill_on_drop: false }`
[INFO] [stdout] 5bc03937ebae0fc5829b89ca8b68617b4a3467c97ad0f58acfabb7ce23df01d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] dcbf5d1362f31b69ebd89c280798a700d1ed54fc9700870460c3b85c7f1defdc
[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" "dcbf5d1362f31b69ebd89c280798a700d1ed54fc9700870460c3b85c7f1defdc", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking atomic_refcell v0.1.7
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling derefable v0.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking serde v1.0.104
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking n1 v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/future/mod.rs (4 fixes)
[INFO] [stderr]        Fixed src/io/mod.rs (3 fixes)
[INFO] [stderr]        Fixed src/main.rs (11 fixes)
[INFO] [stderr]        Fixed src/pipeline/par_map.rs (1 fix)
[INFO] [stderr]        Fixed src/graph/io_graph.rs (1 fix)
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]   --> src/future/mod.rs:36:16
[INFO] [stdout]    |
[INFO] [stdout] 36 |             if let r = self.get() {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout]    = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]    = help: consider replacing the `if let` with a `let`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]   --> src/future/mod.rs:36:16
[INFO] [stdout]    |
[INFO] [stdout] 36 |             if let r = self.get() {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout]    = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]    = help: consider replacing the `if let` with a `let`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `apply`
[INFO] [stdout]   --> src/pipeline/par_map.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn apply(&self, datum: Vec<u8>) -> Vec<u8> {
[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: `map_async`
[INFO] [stdout]   --> src/pipeline/par_map.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn map_async(&self, data: Vec<Vec<u8>>) -> Vec<JoinHandle<Vec<u8>>> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `apply`
[INFO] [stdout]   --> src/graph/concurrent.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn apply(&self, datum: Vec<T>) -> Vec<T> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `empty`
[INFO] [stdout]   --> src/graph/concurrent.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn empty(f: GraphLikeFunc<T>, m: String) -> Self {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> src/graph/concurrent.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub (in crate::graph) name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `apply`
[INFO] [stdout]    --> src/graph/concurrent.rs:110:8
[INFO] [stdout]     |
[INFO] [stdout] 110 |     fn apply(&self, datum: Vec<T>) -> Vec<T> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/future/mod.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new() -> Future<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `yo`
[INFO] [stdout]   --> src/future/mod.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub fn yo() -> Arc<impl PollableFuture<String>> {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     io::write(filename_out, io_out_receiver);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/pipeline/par_map.rs:59:13
[INFO] [stdout]    |
[INFO] [stdout] 59 |             io_out_sender.send(self.apply_async(work));
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/io/mod.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |         io_sender.send(line.unwrap().as_bytes().to_owned());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/io/mod.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         work_sender.send(bytes);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `apply`
[INFO] [stdout]   --> src/pipeline/par_map.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn apply(&self, datum: Vec<u8>) -> Vec<u8> {
[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: `map_async`
[INFO] [stdout]   --> src/pipeline/par_map.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn map_async(&self, data: Vec<Vec<u8>>) -> Vec<JoinHandle<Vec<u8>>> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `apply`
[INFO] [stdout]   --> src/graph/concurrent.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn apply(&self, datum: Vec<T>) -> Vec<T> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `empty`
[INFO] [stdout]   --> src/graph/concurrent.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn empty(f: GraphLikeFunc<T>, m: String) -> Self {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> src/graph/concurrent.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub (in crate::graph) name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `apply`
[INFO] [stdout]    --> src/graph/concurrent.rs:110:8
[INFO] [stdout]     |
[INFO] [stdout] 110 |     fn apply(&self, datum: Vec<T>) -> Vec<T> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/future/mod.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new() -> Future<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `yo`
[INFO] [stdout]   --> src/future/mod.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub fn yo() -> Arc<impl PollableFuture<String>> {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     io::write(filename_out, io_out_receiver);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/pipeline/par_map.rs:59:13
[INFO] [stdout]    |
[INFO] [stdout] 59 |             io_out_sender.send(self.apply_async(work));
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/io/mod.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |         io_sender.send(line.unwrap().as_bytes().to_owned());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/io/mod.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         work_sender.send(bytes);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.83s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking n1 v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]   --> src/future/mod.rs:36:16
[INFO] [stdout]    |
[INFO] [stdout] 36 |             if let r = self.get() {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout]    = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]    = help: consider replacing the `if let` with a `let`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]   --> src/future/mod.rs:36:16
[INFO] [stdout]    |
[INFO] [stdout] 36 |             if let r = self.get() {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout]    = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]    = help: consider replacing the `if let` with a `let`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `apply`
[INFO] [stdout]   --> src/pipeline/par_map.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn apply(&self, datum: Vec<u8>) -> Vec<u8> {
[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: `map_async`
[INFO] [stdout]   --> src/pipeline/par_map.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn map_async(&self, data: Vec<Vec<u8>>) -> Vec<JoinHandle<Vec<u8>>> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `apply`
[INFO] [stdout]   --> src/graph/concurrent.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn apply(&self, datum: Vec<T>) -> Vec<T> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `empty`
[INFO] [stdout]   --> src/graph/concurrent.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn empty(f: GraphLikeFunc<T>, m: String) -> Self {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> src/graph/concurrent.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub (in crate::graph) name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `apply`
[INFO] [stdout]    --> src/graph/concurrent.rs:110:8
[INFO] [stdout]     |
[INFO] [stdout] 110 |     fn apply(&self, datum: Vec<T>) -> Vec<T> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/future/mod.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new() -> Future<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `yo`
[INFO] [stdout]   --> src/future/mod.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub fn yo() -> Arc<impl PollableFuture<String>> {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     io::write(filename_out, io_out_receiver);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/pipeline/par_map.rs:59:13
[INFO] [stdout]    |
[INFO] [stdout] 59 |             io_out_sender.send(self.apply_async(work));
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/io/mod.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |         io_sender.send(line.unwrap().as_bytes().to_owned());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/io/mod.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         work_sender.send(bytes);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `apply`
[INFO] [stdout]   --> src/pipeline/par_map.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn apply(&self, datum: Vec<u8>) -> Vec<u8> {
[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: `map_async`
[INFO] [stdout]   --> src/pipeline/par_map.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn map_async(&self, data: Vec<Vec<u8>>) -> Vec<JoinHandle<Vec<u8>>> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `apply`
[INFO] [stdout]   --> src/graph/concurrent.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn apply(&self, datum: Vec<T>) -> Vec<T> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `empty`
[INFO] [stdout]   --> src/graph/concurrent.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn empty(f: GraphLikeFunc<T>, m: String) -> Self {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> src/graph/concurrent.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub (in crate::graph) name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `apply`
[INFO] [stdout]    --> src/graph/concurrent.rs:110:8
[INFO] [stdout]     |
[INFO] [stdout] 110 |     fn apply(&self, datum: Vec<T>) -> Vec<T> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/future/mod.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new() -> Future<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `yo`
[INFO] [stdout]   --> src/future/mod.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub fn yo() -> Arc<impl PollableFuture<String>> {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     io::write(filename_out, io_out_receiver);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/pipeline/par_map.rs:59:13
[INFO] [stdout]    |
[INFO] [stdout] 59 |             io_out_sender.send(self.apply_async(work));
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/io/mod.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |         io_sender.send(line.unwrap().as_bytes().to_owned());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/io/mod.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         work_sender.send(bytes);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "dcbf5d1362f31b69ebd89c280798a700d1ed54fc9700870460c3b85c7f1defdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcbf5d1362f31b69ebd89c280798a700d1ed54fc9700870460c3b85c7f1defdc", kill_on_drop: false }`
[INFO] [stdout] dcbf5d1362f31b69ebd89c280798a700d1ed54fc9700870460c3b85c7f1defdc