[INFO] updating cached repository xurtis/isolate
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/xurtis/isolate
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/xurtis/isolate" "work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/xurtis/isolate"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/xurtis/isolate'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/xurtis/isolate" "work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/xurtis/isolate"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/xurtis/isolate'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b3bc1fc1fb3135f72a6b685fcbd3e0553abcc442
[INFO] sha for GitHub repo xurtis/isolate: b3bc1fc1fb3135f72a6b685fcbd3e0553abcc442
[INFO] validating manifest of xurtis/isolate on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of xurtis/isolate on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing xurtis/isolate
[INFO] finished frobbing xurtis/isolate
[INFO] frobbed toml for xurtis/isolate written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/xurtis/isolate/Cargo.toml
[INFO] started frobbing xurtis/isolate
[INFO] finished frobbing xurtis/isolate
[INFO] frobbed toml for xurtis/isolate written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/xurtis/isolate/Cargo.toml
[INFO] crate xurtis/isolate already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking xurtis/isolate against master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7 for pr-59199
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-5/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/xurtis/isolate:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b3af6df43f52f62038fbed4ab9e423f6cc4fce9676490a93e2175c8c4ff1d77b
[INFO] running `"docker" "start" "-a" "b3af6df43f52f62038fbed4ab9e423f6cc4fce9676490a93e2175c8c4ff1d77b"`
[INFO] [stderr]    Compiling serde v1.0.64
[INFO] [stderr]    Compiling proc-macro2 v0.4.4
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking nix v0.9.0
[INFO] [stderr]     Checking errno v0.2.3
[INFO] [stderr]     Checking backtrace-sys v0.1.23
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking backtrace v0.3.8
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]    Compiling syn v0.14.1
[INFO] [stderr]     Checking unshare v0.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.64
[INFO] [stderr]     Checking toml v0.4.6
[INFO] [stderr]     Checking docopt v0.8.3
[INFO] [stderr]     Checking isolate v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `::error::*`
[INFO] [stderr]  --> src/namespace/control_group.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use ::error::*;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::Child`
[INFO] [stderr]  --> src/namespace/control_group.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use ::Child;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::error::*`
[INFO] [stderr]  --> src/namespace/ipc.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use ::error::*;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::Child`
[INFO] [stderr]  --> src/namespace/ipc.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use ::Child;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `PathBuf`
[INFO] [stderr]  --> src/namespace/mount.rs:3:23
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::path::{Path, PathBuf};
[INFO] [stderr]   |                       ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::error::*`
[INFO] [stderr]  --> src/namespace/network.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use ::error::*;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::Child`
[INFO] [stderr]  --> src/namespace/network.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use ::Child;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::error::*`
[INFO] [stderr]  --> src/namespace/pid.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use ::error::*;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::Child`
[INFO] [stderr]  --> src/namespace/pid.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use ::Child;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::error::*`
[INFO] [stderr]  --> src/namespace/uts.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use ::error::*;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::Child`
[INFO] [stderr]  --> src/namespace/uts.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use ::Child;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::error::*`
[INFO] [stderr]  --> src/namespace/control_group.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use ::error::*;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::Child`
[INFO] [stderr]  --> src/namespace/control_group.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use ::Child;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::error::*`
[INFO] [stderr]  --> src/namespace/ipc.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use ::error::*;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::Child`
[INFO] [stderr]  --> src/namespace/ipc.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use ::Child;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `PathBuf`
[INFO] [stderr]  --> src/namespace/mount.rs:3:23
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::path::{Path, PathBuf};
[INFO] [stderr]   |                       ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::error::*`
[INFO] [stderr]  --> src/namespace/network.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use ::error::*;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::Child`
[INFO] [stderr]  --> src/namespace/network.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use ::Child;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::error::*`
[INFO] [stderr]  --> src/namespace/pid.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use ::error::*;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::Child`
[INFO] [stderr]  --> src/namespace/pid.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use ::Child;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::error::*`
[INFO] [stderr]  --> src/namespace/uts.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use ::error::*;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::Child`
[INFO] [stderr]  --> src/namespace/uts.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use ::Child;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:4:1
[INFO] [stderr]    |
[INFO] [stderr] 4  | / error_chain!{
[INFO] [stderr] 5  | |     // Wrappers for other error_chains.
[INFO] [stderr] 6  | |     links {
[INFO] [stderr] 7  | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 47 | |     }
[INFO] [stderr] 48 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:4:1
[INFO] [stderr]    |
[INFO] [stderr] 4  | / error_chain!{
[INFO] [stderr] 5  | |     // Wrappers for other error_chains.
[INFO] [stderr] 6  | |     links {
[INFO] [stderr] 7  | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 47 | |     }
[INFO] [stderr] 48 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:4:1
[INFO] [stderr]    |
[INFO] [stderr] 4  | / error_chain!{
[INFO] [stderr] 5  | |     // Wrappers for other error_chains.
[INFO] [stderr] 6  | |     links {
[INFO] [stderr] 7  | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 47 | |     }
[INFO] [stderr] 48 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:4:1
[INFO] [stderr]    |
[INFO] [stderr] 4  | / error_chain!{
[INFO] [stderr] 5  | |     // Wrappers for other error_chains.
[INFO] [stderr] 6  | |     links {
[INFO] [stderr] 7  | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 47 | |     }
[INFO] [stderr] 48 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Allow`
[INFO] [stderr]    --> src/namespace/user.rs:114:2
[INFO] [stderr]     |
[INFO] [stderr] 114 |     Allow,
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type does not implement `fmt::Debug`; consider adding #[derive(Debug)] or a manual implementation
[INFO] [stderr]   --> src/context.rs:35:1
[INFO] [stderr]    |
[INFO] [stderr] 35 | / pub struct Context {
[INFO] [stderr] 36 | |     namespaces: Vec<Box<Namespace>>,
[INFO] [stderr] 37 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]   --> src/lib.rs:5:9
[INFO] [stderr]    |
[INFO] [stderr] 5  | #![warn(missing_debug_implementations)]
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type does not implement `fmt::Debug`; consider adding #[derive(Debug)] or a manual implementation
[INFO] [stderr]    --> src/context.rs:231:1
[INFO] [stderr]     |
[INFO] [stderr] 231 | pub struct Child(pid_t);
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type does not implement `fmt::Debug`; consider adding #[derive(Debug)] or a manual implementation
[INFO] [stderr]   --> src/namespace/control_group.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub struct ControlGroup {}
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type does not implement `fmt::Debug`; consider adding #[derive(Debug)] or a manual implementation
[INFO] [stderr]   --> src/namespace/ipc.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub struct Ipc {}
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type does not implement `fmt::Debug`; consider adding #[derive(Debug)] or a manual implementation
[INFO] [stderr]   --> src/namespace/network.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub struct Network {}
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type does not implement `fmt::Debug`; consider adding #[derive(Debug)] or a manual implementation
[INFO] [stderr]   --> src/namespace/pid.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub struct Pid {}
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type does not implement `fmt::Debug`; consider adding #[derive(Debug)] or a manual implementation
[INFO] [stderr]   --> src/namespace/user.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | / pub struct User {
[INFO] [stderr] 32 | |     map_root_user: bool,
[INFO] [stderr] 33 | |     map_root_group: bool,
[INFO] [stderr] 34 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: type does not implement `fmt::Debug`; consider adding #[derive(Debug)] or a manual implementation
[INFO] [stderr]   --> src/namespace/uts.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub struct Uts {}
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Allow`
[INFO] [stderr]    --> src/namespace/user.rs:114:2
[INFO] [stderr]     |
[INFO] [stderr] 114 |     Allow,
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type does not implement `fmt::Debug`; consider adding #[derive(Debug)] or a manual implementation
[INFO] [stderr]   --> src/context.rs:35:1
[INFO] [stderr]    |
[INFO] [stderr] 35 | / pub struct Context {
[INFO] [stderr] 36 | |     namespaces: Vec<Box<Namespace>>,
[INFO] [stderr] 37 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]   --> src/lib.rs:5:9
[INFO] [stderr]    |
[INFO] [stderr] 5  | #![warn(missing_debug_implementations)]
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type does not implement `fmt::Debug`; consider adding #[derive(Debug)] or a manual implementation
[INFO] [stderr]    --> src/context.rs:231:1
[INFO] [stderr]     |
[INFO] [stderr] 231 | pub struct Child(pid_t);
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type does not implement `fmt::Debug`; consider adding #[derive(Debug)] or a manual implementation
[INFO] [stderr]   --> src/namespace/control_group.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub struct ControlGroup {}
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type does not implement `fmt::Debug`; consider adding #[derive(Debug)] or a manual implementation
[INFO] [stderr]   --> src/namespace/ipc.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub struct Ipc {}
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type does not implement `fmt::Debug`; consider adding #[derive(Debug)] or a manual implementation
[INFO] [stderr]   --> src/namespace/network.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub struct Network {}
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type does not implement `fmt::Debug`; consider adding #[derive(Debug)] or a manual implementation
[INFO] [stderr]   --> src/namespace/pid.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub struct Pid {}
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type does not implement `fmt::Debug`; consider adding #[derive(Debug)] or a manual implementation
[INFO] [stderr]   --> src/namespace/user.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | / pub struct User {
[INFO] [stderr] 32 | |     map_root_user: bool,
[INFO] [stderr] 33 | |     map_root_group: bool,
[INFO] [stderr] 34 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: type does not implement `fmt::Debug`; consider adding #[derive(Debug)] or a manual implementation
[INFO] [stderr]   --> src/namespace/uts.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub struct Uts {}
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: missing documentation for a trait method
[INFO] [stderr]   --> src/namespace/mod.rs:83:2
[INFO] [stderr]    |
[INFO] [stderr] 83 |     fn box_clone(&self) -> Box<Namespace>;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]   --> src/lib.rs:3:9
[INFO] [stderr]    |
[INFO] [stderr] 3  | #![warn(missing_docs)]
[INFO] [stderr]    |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `config`
[INFO] [stderr]    --> src/main.rs:144:5
[INFO] [stderr]     |
[INFO] [stderr] 144 |     config: Configuration,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `config`
[INFO] [stderr]    --> src/main.rs:144:5
[INFO] [stderr]     |
[INFO] [stderr] 144 |     config: Configuration,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.90s
[INFO] running `"docker" "inspect" "b3af6df43f52f62038fbed4ab9e423f6cc4fce9676490a93e2175c8c4ff1d77b"`
[INFO] running `"docker" "rm" "-f" "b3af6df43f52f62038fbed4ab9e423f6cc4fce9676490a93e2175c8c4ff1d77b"`
[INFO] [stdout] b3af6df43f52f62038fbed4ab9e423f6cc4fce9676490a93e2175c8c4ff1d77b