[INFO] cloning repository https://github.com/T0mstone/tlib
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/T0mstone/tlib" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FT0mstone%2Ftlib", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FT0mstone%2Ftlib'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 048f9005b8512f79a615b2bfdce98ed8993dc7d5
[INFO] checking T0mstone/tlib against try#7b3da9103634dffd4f4365cfd8642427c781d99f+rustflags=-Dinherent-method-on-receiver for 152214-denied-retry-0
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FT0mstone%2Ftlib" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/T0mstone/tlib
[INFO] finished tweaking git repo https://github.com/T0mstone/tlib
[INFO] tweaked toml for git repo https://github.com/T0mstone/tlib written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/T0mstone/tlib on toolchain 7b3da9103634dffd4f4365cfd8642427c781d99f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/T0mstone/tlib 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" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dfd483bee2e2c5b00d61fccbd00e911340c46626541af14d5353c1d86ea915c3
[INFO] running `Command { std: "docker" "start" "-a" "dfd483bee2e2c5b00d61fccbd00e911340c46626541af14d5353c1d86ea915c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dfd483bee2e2c5b00d61fccbd00e911340c46626541af14d5353c1d86ea915c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfd483bee2e2c5b00d61fccbd00e911340c46626541af14d5353c1d86ea915c3", kill_on_drop: false }`
[INFO] [stdout] dfd483bee2e2c5b00d61fccbd00e911340c46626541af14d5353c1d86ea915c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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 -Dinherent-method-on-receiver" "-e" "RUSTDOCFLAGS=--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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 12d65bb9805b0d399c634dd9079dbca34e65e7f24959f5fce6a540c54539fda7
[INFO] running `Command { std: "docker" "start" "-a" "12d65bb9805b0d399c634dd9079dbca34e65e7f24959f5fce6a540c54539fda7", kill_on_drop: false }`
[INFO] [stderr]    Compiling tlib v0.13.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `profile`
[INFO] [stdout]    --> src/cargo_tools.rs:178:15
[INFO] [stdout]     |
[INFO] [stdout] 178 |         #[cfg(profile = "debug")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(profile, values("debug"))'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(profile, values(\"debug\"))");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `profile`
[INFO] [stdout]    --> src/cargo_tools.rs:180:15
[INFO] [stdout]     |
[INFO] [stdout] 180 |         #[cfg(profile = "release")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(profile, values("release"))'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(profile, values(\"release\"))");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]   --> src/singleton.rs:70:17
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl<T> Deref for Singleton<T> {
[INFO] [stdout]    | ------------------------------ trait implemented here
[INFO] [stdout] 31 |     type Target = T;
[INFO] [stdout]    |     ----------- with `Target` set here
[INFO] [stdout] ...
[INFO] [stdout] 70 |     pub fn init(&mut self, t: T) -> bool {
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D inherent-method-on-receiver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]   --> src/singleton.rs:81:27
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl<T> Deref for Singleton<T> {
[INFO] [stdout]    | ------------------------------ trait implemented here
[INFO] [stdout] 31 |     type Target = T;
[INFO] [stdout]    |     ----------- with `Target` set here
[INFO] [stdout] ...
[INFO] [stdout] 81 |     pub fn is_initialized(&self) -> bool {
[INFO] [stdout]    |                           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]   --> src/singleton.rs:86:22
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl<T> Deref for Singleton<T> {
[INFO] [stdout]    | ------------------------------ trait implemented here
[INFO] [stdout] 31 |     type Target = T;
[INFO] [stdout]    |     ----------- with `Target` set here
[INFO] [stdout] ...
[INFO] [stdout] 86 |     pub fn to_option(&self) -> Option<T>
[INFO] [stdout]    |                      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]   --> src/singleton.rs:94:24
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl<T> Deref for Singleton<T> {
[INFO] [stdout]    | ------------------------------ trait implemented here
[INFO] [stdout] 31 |     type Target = T;
[INFO] [stdout]    |     ----------- with `Target` set here
[INFO] [stdout] ...
[INFO] [stdout] 94 |     pub fn into_option(self) -> Option<T> {
[INFO] [stdout]    |                        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]    --> src/singleton.rs:103:19
[INFO] [stdout]     |
[INFO] [stdout]  30 | impl<T> Deref for Singleton<T> {
[INFO] [stdout]     | ------------------------------ trait implemented here
[INFO] [stdout]  31 |     type Target = T;
[INFO] [stdout]     |     ----------- with `Target` set here
[INFO] [stdout] ...
[INFO] [stdout] 103 |     pub fn unwrap(self) -> T {
[INFO] [stdout]     |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]    --> src/singleton.rs:113:19
[INFO] [stdout]     |
[INFO] [stdout]  30 | impl<T> Deref for Singleton<T> {
[INFO] [stdout]     | ------------------------------ trait implemented here
[INFO] [stdout]  31 |     type Target = T;
[INFO] [stdout]     |     ----------- with `Target` set here
[INFO] [stdout] ...
[INFO] [stdout] 113 |     pub fn expect(self, msg: &str) -> T {
[INFO] [stdout]     |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]    --> src/singleton.rs:125:18
[INFO] [stdout]     |
[INFO] [stdout]  30 | impl<T> Deref for Singleton<T> {
[INFO] [stdout]     | ------------------------------ trait implemented here
[INFO] [stdout]  31 |     type Target = T;
[INFO] [stdout]     |     ----------- with `Target` set here
[INFO] [stdout] ...
[INFO] [stdout] 125 |     pub fn inner(&self) -> &T {
[INFO] [stdout]     |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]    --> src/singleton.rs:134:22
[INFO] [stdout]     |
[INFO] [stdout]  30 | impl<T> Deref for Singleton<T> {
[INFO] [stdout]     | ------------------------------ trait implemented here
[INFO] [stdout]  31 |     type Target = T;
[INFO] [stdout]     |     ----------- with `Target` set here
[INFO] [stdout] ...
[INFO] [stdout] 134 |     pub fn inner_mut(&mut self) -> &mut T {
[INFO] [stdout]     |                      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]    --> src/singleton.rs:140:19
[INFO] [stdout]     |
[INFO] [stdout]  30 | impl<T> Deref for Singleton<T> {
[INFO] [stdout]     | ------------------------------ trait implemented here
[INFO] [stdout]  31 |     type Target = T;
[INFO] [stdout]     |     ----------- with `Target` set here
[INFO] [stdout] ...
[INFO] [stdout] 140 |     pub fn as_ref(&self) -> Singleton<&T> {
[INFO] [stdout]     |                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]    --> src/singleton.rs:147:19
[INFO] [stdout]     |
[INFO] [stdout]  30 | impl<T> Deref for Singleton<T> {
[INFO] [stdout]     | ------------------------------ trait implemented here
[INFO] [stdout]  31 |     type Target = T;
[INFO] [stdout]     |     ----------- with `Target` set here
[INFO] [stdout] ...
[INFO] [stdout] 147 |     pub fn as_mut(&mut self) -> Singleton<&mut T> {
[INFO] [stdout]     |                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]    --> src/singleton.rs:154:37
[INFO] [stdout]     |
[INFO] [stdout]  30 | impl<T> Deref for Singleton<T> {
[INFO] [stdout]     | ------------------------------ trait implemented here
[INFO] [stdout]  31 |     type Target = T;
[INFO] [stdout]     |     ----------- with `Target` set here
[INFO] [stdout] ...
[INFO] [stdout] 154 |     pub fn map<F: FnMut(T) -> U, U>(self, f: F) -> Singleton<U> {
[INFO] [stdout]     |                                     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]    --> src/singleton.rs:161:43
[INFO] [stdout]     |
[INFO] [stdout]  30 | impl<T> Deref for Singleton<T> {
[INFO] [stdout]     | ------------------------------ trait implemented here
[INFO] [stdout]  31 |     type Target = T;
[INFO] [stdout]     |     ----------- with `Target` set here
[INFO] [stdout] ...
[INFO] [stdout] 161 |     pub fn map_in_place<F: FnMut(T) -> T>(&mut self, mut f: F) {
[INFO] [stdout]     |                                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]    --> src/singleton.rs:173:19
[INFO] [stdout]     |
[INFO] [stdout]  30 | impl<T> Deref for Singleton<T> {
[INFO] [stdout]     | ------------------------------ trait implemented here
[INFO] [stdout]  31 |     type Target = T;
[INFO] [stdout]     |     ----------- with `Target` set here
[INFO] [stdout] ...
[INFO] [stdout] 173 |     pub fn cloned(&self) -> Singleton<T> {
[INFO] [stdout]     |                   ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    --> /rustc/7b3da9103634dffd4f4365cfd8642427c781d99f/library/core/src/ops/deref.rs:155:0
[INFO] [stdout]     |
[INFO] [stdout]     = note: trait implemented here
[INFO] [stdout]    ::: /rustc/7b3da9103634dffd4f4365cfd8642427c781d99f/library/core/src/ops/deref.rs:156:4
[INFO] [stdout]     |
[INFO] [stdout]     = note: with `Target` set here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]    --> src/singleton.rs:183:19
[INFO] [stdout]     |
[INFO] [stdout]  30 | impl<T> Deref for Singleton<T> {
[INFO] [stdout]     | ------------------------------ trait implemented here
[INFO] [stdout]  31 |     type Target = T;
[INFO] [stdout]     |     ----------- with `Target` set here
[INFO] [stdout] ...
[INFO] [stdout] 183 |     pub fn copied(&self) -> Singleton<T> {
[INFO] [stdout]     |                   ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    --> /rustc/7b3da9103634dffd4f4365cfd8642427c781d99f/library/core/src/ops/deref.rs:155:0
[INFO] [stdout]     |
[INFO] [stdout]     = note: trait implemented here
[INFO] [stdout]    ::: /rustc/7b3da9103634dffd4f4365cfd8642427c781d99f/library/core/src/ops/deref.rs:156:4
[INFO] [stdout]     |
[INFO] [stdout]     = note: with `Target` set here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/cargo_tools.rs:143:20
[INFO] [stdout]     |
[INFO] [stdout] 143 |     pub fn version(&self) -> CargoPackageVersion {
[INFO] [stdout]     |                    ^^^^^     ^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided 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: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 143 |     pub fn version(&self) -> CargoPackageVersion<'_> {
[INFO] [stdout]     |                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tlib` (lib) due to 14 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unexpected `cfg` condition name: `profile`
[INFO] [stdout]    --> src/cargo_tools.rs:178:15
[INFO] [stdout]     |
[INFO] [stdout] 178 |         #[cfg(profile = "debug")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(profile, values("debug"))'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(profile, values(\"debug\"))");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `profile`
[INFO] [stdout]    --> src/cargo_tools.rs:180:15
[INFO] [stdout]     |
[INFO] [stdout] 180 |         #[cfg(profile = "release")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(profile, values("release"))'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(profile, values(\"release\"))");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]   --> src/singleton.rs:70:17
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl<T> Deref for Singleton<T> {
[INFO] [stdout]    | ------------------------------ trait implemented here
[INFO] [stdout] 31 |     type Target = T;
[INFO] [stdout]    |     ----------- with `Target` set here
[INFO] [stdout] ...
[INFO] [stdout] 70 |     pub fn init(&mut self, t: T) -> bool {
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D inherent-method-on-receiver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]   --> src/singleton.rs:81:27
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl<T> Deref for Singleton<T> {
[INFO] [stdout]    | ------------------------------ trait implemented here
[INFO] [stdout] 31 |     type Target = T;
[INFO] [stdout]    |     ----------- with `Target` set here
[INFO] [stdout] ...
[INFO] [stdout] 81 |     pub fn is_initialized(&self) -> bool {
[INFO] [stdout]    |                           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]   --> src/singleton.rs:86:22
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl<T> Deref for Singleton<T> {
[INFO] [stdout]    | ------------------------------ trait implemented here
[INFO] [stdout] 31 |     type Target = T;
[INFO] [stdout]    |     ----------- with `Target` set here
[INFO] [stdout] ...
[INFO] [stdout] 86 |     pub fn to_option(&self) -> Option<T>
[INFO] [stdout]    |                      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]   --> src/singleton.rs:94:24
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl<T> Deref for Singleton<T> {
[INFO] [stdout]    | ------------------------------ trait implemented here
[INFO] [stdout] 31 |     type Target = T;
[INFO] [stdout]    |     ----------- with `Target` set here
[INFO] [stdout] ...
[INFO] [stdout] 94 |     pub fn into_option(self) -> Option<T> {
[INFO] [stdout]    |                        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]    --> src/singleton.rs:103:19
[INFO] [stdout]     |
[INFO] [stdout]  30 | impl<T> Deref for Singleton<T> {
[INFO] [stdout]     | ------------------------------ trait implemented here
[INFO] [stdout]  31 |     type Target = T;
[INFO] [stdout]     |     ----------- with `Target` set here
[INFO] [stdout] ...
[INFO] [stdout] 103 |     pub fn unwrap(self) -> T {
[INFO] [stdout]     |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]    --> src/singleton.rs:113:19
[INFO] [stdout]     |
[INFO] [stdout]  30 | impl<T> Deref for Singleton<T> {
[INFO] [stdout]     | ------------------------------ trait implemented here
[INFO] [stdout]  31 |     type Target = T;
[INFO] [stdout]     |     ----------- with `Target` set here
[INFO] [stdout] ...
[INFO] [stdout] 113 |     pub fn expect(self, msg: &str) -> T {
[INFO] [stdout]     |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]    --> src/singleton.rs:125:18
[INFO] [stdout]     |
[INFO] [stdout]  30 | impl<T> Deref for Singleton<T> {
[INFO] [stdout]     | ------------------------------ trait implemented here
[INFO] [stdout]  31 |     type Target = T;
[INFO] [stdout]     |     ----------- with `Target` set here
[INFO] [stdout] ...
[INFO] [stdout] 125 |     pub fn inner(&self) -> &T {
[INFO] [stdout]     |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]    --> src/singleton.rs:134:22
[INFO] [stdout]     |
[INFO] [stdout]  30 | impl<T> Deref for Singleton<T> {
[INFO] [stdout]     | ------------------------------ trait implemented here
[INFO] [stdout]  31 |     type Target = T;
[INFO] [stdout]     |     ----------- with `Target` set here
[INFO] [stdout] ...
[INFO] [stdout] 134 |     pub fn inner_mut(&mut self) -> &mut T {
[INFO] [stdout]     |                      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]    --> src/singleton.rs:140:19
[INFO] [stdout]     |
[INFO] [stdout]  30 | impl<T> Deref for Singleton<T> {
[INFO] [stdout]     | ------------------------------ trait implemented here
[INFO] [stdout]  31 |     type Target = T;
[INFO] [stdout]     |     ----------- with `Target` set here
[INFO] [stdout] ...
[INFO] [stdout] 140 |     pub fn as_ref(&self) -> Singleton<&T> {
[INFO] [stdout]     |                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]    --> src/singleton.rs:147:19
[INFO] [stdout]     |
[INFO] [stdout]  30 | impl<T> Deref for Singleton<T> {
[INFO] [stdout]     | ------------------------------ trait implemented here
[INFO] [stdout]  31 |     type Target = T;
[INFO] [stdout]     |     ----------- with `Target` set here
[INFO] [stdout] ...
[INFO] [stdout] 147 |     pub fn as_mut(&mut self) -> Singleton<&mut T> {
[INFO] [stdout]     |                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]    --> src/singleton.rs:154:37
[INFO] [stdout]     |
[INFO] [stdout]  30 | impl<T> Deref for Singleton<T> {
[INFO] [stdout]     | ------------------------------ trait implemented here
[INFO] [stdout]  31 |     type Target = T;
[INFO] [stdout]     |     ----------- with `Target` set here
[INFO] [stdout] ...
[INFO] [stdout] 154 |     pub fn map<F: FnMut(T) -> U, U>(self, f: F) -> Singleton<U> {
[INFO] [stdout]     |                                     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]    --> src/singleton.rs:161:43
[INFO] [stdout]     |
[INFO] [stdout]  30 | impl<T> Deref for Singleton<T> {
[INFO] [stdout]     | ------------------------------ trait implemented here
[INFO] [stdout]  31 |     type Target = T;
[INFO] [stdout]     |     ----------- with `Target` set here
[INFO] [stdout] ...
[INFO] [stdout] 161 |     pub fn map_in_place<F: FnMut(T) -> T>(&mut self, mut f: F) {
[INFO] [stdout]     |                                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]    --> src/singleton.rs:173:19
[INFO] [stdout]     |
[INFO] [stdout]  30 | impl<T> Deref for Singleton<T> {
[INFO] [stdout]     | ------------------------------ trait implemented here
[INFO] [stdout]  31 |     type Target = T;
[INFO] [stdout]     |     ----------- with `Target` set here
[INFO] [stdout] ...
[INFO] [stdout] 173 |     pub fn cloned(&self) -> Singleton<T> {
[INFO] [stdout]     |                   ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    --> /rustc/7b3da9103634dffd4f4365cfd8642427c781d99f/library/core/src/ops/deref.rs:155:0
[INFO] [stdout]     |
[INFO] [stdout]     = note: trait implemented here
[INFO] [stdout]    ::: /rustc/7b3da9103634dffd4f4365cfd8642427c781d99f/library/core/src/ops/deref.rs:156:4
[INFO] [stdout]     |
[INFO] [stdout]     = note: with `Target` set here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]    --> src/singleton.rs:183:19
[INFO] [stdout]     |
[INFO] [stdout]  30 | impl<T> Deref for Singleton<T> {
[INFO] [stdout]     | ------------------------------ trait implemented here
[INFO] [stdout]  31 |     type Target = T;
[INFO] [stdout]     |     ----------- with `Target` set here
[INFO] [stdout] ...
[INFO] [stdout] 183 |     pub fn copied(&self) -> Singleton<T> {
[INFO] [stdout]     |                   ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    --> /rustc/7b3da9103634dffd4f4365cfd8642427c781d99f/library/core/src/ops/deref.rs:155:0
[INFO] [stdout]     |
[INFO] [stdout]     = note: trait implemented here
[INFO] [stdout]    ::: /rustc/7b3da9103634dffd4f4365cfd8642427c781d99f/library/core/src/ops/deref.rs:156:4
[INFO] [stdout]     |
[INFO] [stdout]     = note: with `Target` set here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/cargo_tools.rs:143:20
[INFO] [stdout]     |
[INFO] [stdout] 143 |     pub fn version(&self) -> CargoPackageVersion {
[INFO] [stdout]     |                    ^^^^^     ^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided 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: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 143 |     pub fn version(&self) -> CargoPackageVersion<'_> {
[INFO] [stdout]     |                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tlib` (lib test) due to 14 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "12d65bb9805b0d399c634dd9079dbca34e65e7f24959f5fce6a540c54539fda7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12d65bb9805b0d399c634dd9079dbca34e65e7f24959f5fce6a540c54539fda7", kill_on_drop: false }`
[INFO] [stdout] 12d65bb9805b0d399c634dd9079dbca34e65e7f24959f5fce6a540c54539fda7
