[INFO] cloning repository https://github.com/rillomas/rust_multithread
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rillomas/rust_multithread" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frillomas%2Frust_multithread", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frillomas%2Frust_multithread'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7baf14955f4a59a65f55d82a4bacd568c24ecc8c
[INFO] checking rillomas/rust_multithread against master#f82664191d0e8764b7435b9d72eb0e366b8b1464 for pr-83354
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frillomas%2Frust_multithread" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rillomas/rust_multithread on toolchain f82664191d0e8764b7435b9d72eb0e366b8b1464
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rillomas/rust_multithread
[INFO] finished tweaking git repo https://github.com/rillomas/rust_multithread
[INFO] tweaked toml for git repo https://github.com/rillomas/rust_multithread written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/rillomas/rust_multithread already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /workspace/builds/worker-12/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd9ccd0ec5679e18bf77f17ffa429971526e7673c08ea9f16c45210c94157bbd
[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" "cd9ccd0ec5679e18bf77f17ffa429971526e7673c08ea9f16c45210c94157bbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd9ccd0ec5679e18bf77f17ffa429971526e7673c08ea9f16c45210c94157bbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd9ccd0ec5679e18bf77f17ffa429971526e7673c08ea9f16c45210c94157bbd", kill_on_drop: false }`
[INFO] [stdout] cd9ccd0ec5679e18bf77f17ffa429971526e7673c08ea9f16c45210c94157bbd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8bdcd488a7501082c19d5e48318e43aef2782b85beecd85e6e67b360d81f7be2
[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" "8bdcd488a7501082c19d5e48318e43aef2782b85beecd85e6e67b360d81f7be2", kill_on_drop: false }`
[INFO] [stderr]     Checking byteorder v0.3.13
[INFO] [stderr]     Checking bincode v0.3.0
[INFO] [stderr]     Checking rust_multithread v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]  --> src/image/mod.rs:8:26
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[derive(RustcEncodable, RustcDecodable, Debug, Copy, Clone, PartialEq)]
[INFO] [stdout]   |                          ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]  --> src/image/mod.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[derive(RustcEncodable, RustcDecodable, Debug, Copy, Clone, PartialEq)]
[INFO] [stdout]   |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]   --> src/image/mod.rs:13:26
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[derive(RustcEncodable, RustcDecodable, Debug, Copy, Clone, PartialEq)]
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]   --> src/image/mod.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[derive(RustcEncodable, RustcDecodable, Debug, Copy, Clone, PartialEq)]
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]   --> src/image/mod.rs:20:26
[INFO] [stdout]    |
[INFO] [stdout] 20 | #[derive(RustcEncodable, RustcDecodable)]
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]   --> src/image/mod.rs:20:10
[INFO] [stdout]    |
[INFO] [stdout] 20 | #[derive(RustcEncodable, RustcDecodable)]
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/image/mod.rs:40:11
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let f = try!(File::create(path));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/image/mod.rs:51:3
[INFO] [stdout]    |
[INFO] [stdout] 51 |         try!(bw.write_all(sl));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/image/mod.rs:57:11
[INFO] [stdout]    |
[INFO] [stdout] 57 |         let f = try!(File::create(path));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/image/mod.rs:60:3
[INFO] [stdout]    |
[INFO] [stdout] 60 |         try!(write!(bw,"P2\n"));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/image/mod.rs:62:3
[INFO] [stdout]    |
[INFO] [stdout] 62 |         try!(write!(bw, "{} {}\n", self.header.width, self.header.height));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/image/mod.rs:64:3
[INFO] [stdout]    |
[INFO] [stdout] 64 |         try!(write!(bw, "{}\n", 65535)); 
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/image/mod.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 |             try!(write!(bw, "{} ", d));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/image/mod.rs:73:15
[INFO] [stdout]    |
[INFO] [stdout] 73 |         let bytes = try!(bincode::encode(self, bincode::SizeLimit::Infinite));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/image/mod.rs:74:18
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let mut file = try!(File::create(path));
[INFO] [stdout]    |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/image/mod.rs:75:3
[INFO] [stdout]    |
[INFO] [stdout] 75 |         try!(file.write_all(&bytes));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/image/mod.rs:72:57
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn serialize(&self, path: &str) ->  Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                                            ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]  --> src/image/mod.rs:8:26
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[derive(RustcEncodable, RustcDecodable, Debug, Copy, Clone, PartialEq)]
[INFO] [stdout]   |                          ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]  --> src/image/mod.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[derive(RustcEncodable, RustcDecodable, Debug, Copy, Clone, PartialEq)]
[INFO] [stdout]   |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]   --> src/image/mod.rs:13:26
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[derive(RustcEncodable, RustcDecodable, Debug, Copy, Clone, PartialEq)]
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]   --> src/image/mod.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[derive(RustcEncodable, RustcDecodable, Debug, Copy, Clone, PartialEq)]
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]   --> src/image/mod.rs:20:26
[INFO] [stdout]    |
[INFO] [stdout] 20 | #[derive(RustcEncodable, RustcDecodable)]
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]   --> src/image/mod.rs:20:10
[INFO] [stdout]    |
[INFO] [stdout] 20 | #[derive(RustcEncodable, RustcDecodable)]
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/image/mod.rs:40:11
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let f = try!(File::create(path));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/image/mod.rs:51:3
[INFO] [stdout]    |
[INFO] [stdout] 51 |         try!(bw.write_all(sl));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/image/mod.rs:57:11
[INFO] [stdout]    |
[INFO] [stdout] 57 |         let f = try!(File::create(path));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/image/mod.rs:60:3
[INFO] [stdout]    |
[INFO] [stdout] 60 |         try!(write!(bw,"P2\n"));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/image/mod.rs:62:3
[INFO] [stdout]    |
[INFO] [stdout] 62 |         try!(write!(bw, "{} {}\n", self.header.width, self.header.height));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/image/mod.rs:64:3
[INFO] [stdout]    |
[INFO] [stdout] 64 |         try!(write!(bw, "{}\n", 65535)); 
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/image/mod.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 |             try!(write!(bw, "{} ", d));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/image/mod.rs:73:15
[INFO] [stdout]    |
[INFO] [stdout] 73 |         let bytes = try!(bincode::encode(self, bincode::SizeLimit::Infinite));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/image/mod.rs:74:18
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let mut file = try!(File::create(path));
[INFO] [stdout]    |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/image/mod.rs:75:3
[INFO] [stdout]    |
[INFO] [stdout] 75 |         try!(file.write_all(&bytes));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/image/mod.rs:72:57
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn serialize(&self, path: &str) ->  Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                                            ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_to_file`
[INFO] [stdout]   --> src/image/mod.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn write_to_file(&self, path: &str) -> std::io::Result<()> {
[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: `serialize`
[INFO] [stdout]   --> src/image/mod.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn serialize(&self, path: &str) ->  Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_to_file`
[INFO] [stdout]   --> src/image/mod.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn write_to_file(&self, path: &str) -> std::io::Result<()> {
[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: `serialize`
[INFO] [stdout]   --> src/image/mod.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn serialize(&self, path: &str) ->  Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.51s
[INFO] running `Command { std: "docker" "inspect" "8bdcd488a7501082c19d5e48318e43aef2782b85beecd85e6e67b360d81f7be2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bdcd488a7501082c19d5e48318e43aef2782b85beecd85e6e67b360d81f7be2", kill_on_drop: false }`
[INFO] [stdout] 8bdcd488a7501082c19d5e48318e43aef2782b85beecd85e6e67b360d81f7be2