[INFO] fetching crate reproto-core 0.3.36... [INFO] checking reproto-core-0.3.36 against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470 [INFO] extracting crate reproto-core 0.3.36 into /workspace/builds/worker-8/source [INFO] validating manifest of crates.io crate reproto-core 0.3.36 on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate reproto-core 0.3.36 [INFO] finished tweaking crates.io crate reproto-core 0.3.36 [INFO] tweaked toml for crates.io crate reproto-core 0.3.36 written to /workspace/builds/worker-8/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 283aa5028f57b32410b97947f98cf697379565153446df833c341606472b51e2 [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" "283aa5028f57b32410b97947f98cf697379565153446df833c341606472b51e2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "283aa5028f57b32410b97947f98cf697379565153446df833c341606472b51e2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "283aa5028f57b32410b97947f98cf697379565153446df833c341606472b51e2", kill_on_drop: false }` [INFO] [stdout] 283aa5028f57b32410b97947f98cf697379565153446df833c341606472b51e2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 06dce8cf9e11866a803d26fccc06f9297d1528aa6cc851f4129fca2765eca38b [INFO] running `Command { std: "docker" "start" "-a" "06dce8cf9e11866a803d26fccc06f9297d1528aa6cc851f4129fca2765eca38b", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling serde v1.0.118 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Checking tinyvec_macros v0.1.0 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling libc v0.2.81 [INFO] [stderr] Compiling syn v1.0.54 [INFO] [stderr] Checking matches v0.1.8 [INFO] [stderr] Compiling serde_derive v1.0.118 [INFO] [stderr] Checking adler v0.2.3 [INFO] [stderr] Checking gimli v0.23.0 [INFO] [stderr] Checking unicode-segmentation v1.7.1 [INFO] [stderr] Checking rustc-demangle v0.1.18 [INFO] [stderr] Checking percent-encoding v1.0.1 [INFO] [stderr] Checking object v0.22.0 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking mime v0.3.16 [INFO] [stderr] Checking tinyvec v1.1.0 [INFO] [stderr] Checking unicode-bidi v0.3.4 [INFO] [stderr] Checking smallvec v0.6.13 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling miniz_oxide v0.4.3 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Checking ropey v0.6.3 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Checking unicode-normalization v0.1.16 [INFO] [stderr] Checking num-traits v0.1.43 [INFO] [stderr] Checking num-bigint v0.1.44 [INFO] [stderr] Checking idna v0.1.5 [INFO] [stderr] Checking url v1.7.2 [INFO] [stderr] Checking serde_test v1.0.118 [INFO] [stderr] Checking reproto-semver v0.3.36 [INFO] [stderr] Checking relative-path v0.3.7 [INFO] [stderr] Checking addr2line v0.14.0 [INFO] [stderr] Checking backtrace v0.3.55 [INFO] [stderr] Checking linked-hash-map v0.5.3 [INFO] [stderr] Checking reproto-core v0.3.36 (/opt/rustwide/workdir) [INFO] [stdout] warning: unknown lint: `linkedlist` [INFO] [stdout] --> src/rp_file.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | #[allow(linkedlist)] [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unknown_lints)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unknown lint: `linkedlist` [INFO] [stdout] --> src/rp_file.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | #[allow(linkedlist)] [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unknown_lints)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/context.rs:25:24 [INFO] [stdout] | [INFO] [stdout] 25 | filesystem: Rc>, [INFO] [stdout] | ^^^^^^^^^^ help: use `dyn`: `dyn Filesystem` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/context.rs:32:32 [INFO] [stdout] | [INFO] [stdout] 32 | pub fn new(filesystem: Box) -> Context { [INFO] [stdout] | ^^^^^^^^^^ help: use `dyn`: `dyn Filesystem` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/context.rs:47:26 [INFO] [stdout] | [INFO] [stdout] 47 | F: FnOnce(Rc>) -> Box, [INFO] [stdout] | ^^^^^^^^^^ help: use `dyn`: `dyn Filesystem` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/context.rs:47:47 [INFO] [stdout] | [INFO] [stdout] 47 | F: FnOnce(Rc>) -> Box, [INFO] [stdout] | ^^^^^^^^^^ help: use `dyn`: `dyn Filesystem` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/context.rs:56:65 [INFO] [stdout] | [INFO] [stdout] 56 | pub fn filesystem(&self, root: Option<&Path>) -> Result> { [INFO] [stdout] | ^^^^^^ help: use `dyn`: `dyn Handle` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/fs.rs:23:57 [INFO] [stdout] | [INFO] [stdout] 23 | fn create(&self, path: &RelativePath) -> Result>; [INFO] [stdout] | ^^^^^^^^^ help: use `dyn`: `dyn io::Write` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/fs.rs:29:60 [INFO] [stdout] | [INFO] [stdout] 29 | fn open_root(&self, root: Option<&Path>) -> Result>; [INFO] [stdout] | ^^^^^^ help: use `dyn`: `dyn Handle` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/fs.rs:42:60 [INFO] [stdout] | [INFO] [stdout] 42 | fn open_root(&self, root: Option<&Path>) -> Result> { [INFO] [stdout] | ^^^^^^ help: use `dyn`: `dyn Handle` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/fs.rs:68:65 [INFO] [stdout] | [INFO] [stdout] 68 | fn create(&self, path: &RelativePath) -> Result> { [INFO] [stdout] | ^^^^^^^^^ help: use `dyn`: `dyn io::Write` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/fs.rs:91:37 [INFO] [stdout] | [INFO] [stdout] 91 | pub fn filesystem(&self) -> Box { [INFO] [stdout] | ^^^^^^^^^^ help: use `dyn`: `dyn Filesystem` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/fs.rs:104:61 [INFO] [stdout] | [INFO] [stdout] 104 | fn open_root(&self, _root: Option<&Path>) -> Result> { [INFO] [stdout] | ^^^^^^ help: use `dyn`: `dyn Handle` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/fs.rs:129:57 [INFO] [stdout] | [INFO] [stdout] 129 | fn create(&self, path: &RelativePath) -> Result> { [INFO] [stdout] | ^^^^^^^^^ help: use `dyn`: `dyn io::Write` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/source.rs:23:34 [INFO] [stdout] | [INFO] [stdout] 23 | fn read(&self) -> Result> { [INFO] [stdout] | ^^^^ help: use `dyn`: `dyn Read` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/source.rs:26:22 [INFO] [stdout] | [INFO] [stdout] 26 | let out: Box = match *self { [INFO] [stdout] | ^^^^ help: use `dyn`: `dyn Read` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/source.rs:171:38 [INFO] [stdout] | [INFO] [stdout] 171 | pub fn read(&self) -> Result> { [INFO] [stdout] | ^^^^ help: use `dyn`: `dyn Read` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/utils.rs:16:31 [INFO] [stdout] | [INFO] [stdout] 16 | pub fn find_line<'a, R: AsMut>( [INFO] [stdout] | ^^^^^^^^^ help: use `dyn`: `dyn Read + 'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/utils.rs:63:32 [INFO] [stdout] | [INFO] [stdout] 63 | pub fn find_range<'a, R: AsMut, S: Into>( [INFO] [stdout] | ^^^^^^^^^ help: use `dyn`: `dyn Read + 'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/context.rs:25:24 [INFO] [stdout] | [INFO] [stdout] 25 | filesystem: Rc>, [INFO] [stdout] | ^^^^^^^^^^ help: use `dyn`: `dyn Filesystem` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/context.rs:32:32 [INFO] [stdout] | [INFO] [stdout] 32 | pub fn new(filesystem: Box) -> Context { [INFO] [stdout] | ^^^^^^^^^^ help: use `dyn`: `dyn Filesystem` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/context.rs:47:26 [INFO] [stdout] | [INFO] [stdout] 47 | F: FnOnce(Rc>) -> Box, [INFO] [stdout] | ^^^^^^^^^^ help: use `dyn`: `dyn Filesystem` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/context.rs:47:47 [INFO] [stdout] | [INFO] [stdout] 47 | F: FnOnce(Rc>) -> Box, [INFO] [stdout] | ^^^^^^^^^^ help: use `dyn`: `dyn Filesystem` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/context.rs:56:65 [INFO] [stdout] | [INFO] [stdout] 56 | pub fn filesystem(&self, root: Option<&Path>) -> Result> { [INFO] [stdout] | ^^^^^^ help: use `dyn`: `dyn Handle` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/fs.rs:23:57 [INFO] [stdout] | [INFO] [stdout] 23 | fn create(&self, path: &RelativePath) -> Result>; [INFO] [stdout] | ^^^^^^^^^ help: use `dyn`: `dyn io::Write` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/fs.rs:29:60 [INFO] [stdout] | [INFO] [stdout] 29 | fn open_root(&self, root: Option<&Path>) -> Result>; [INFO] [stdout] | ^^^^^^ help: use `dyn`: `dyn Handle` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/fs.rs:42:60 [INFO] [stdout] | [INFO] [stdout] 42 | fn open_root(&self, root: Option<&Path>) -> Result> { [INFO] [stdout] | ^^^^^^ help: use `dyn`: `dyn Handle` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/fs.rs:68:65 [INFO] [stdout] | [INFO] [stdout] 68 | fn create(&self, path: &RelativePath) -> Result> { [INFO] [stdout] | ^^^^^^^^^ help: use `dyn`: `dyn io::Write` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/fs.rs:91:37 [INFO] [stdout] | [INFO] [stdout] 91 | pub fn filesystem(&self) -> Box { [INFO] [stdout] | ^^^^^^^^^^ help: use `dyn`: `dyn Filesystem` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/fs.rs:104:61 [INFO] [stdout] | [INFO] [stdout] 104 | fn open_root(&self, _root: Option<&Path>) -> Result> { [INFO] [stdout] | ^^^^^^ help: use `dyn`: `dyn Handle` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/fs.rs:129:57 [INFO] [stdout] | [INFO] [stdout] 129 | fn create(&self, path: &RelativePath) -> Result> { [INFO] [stdout] | ^^^^^^^^^ help: use `dyn`: `dyn io::Write` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/source.rs:23:34 [INFO] [stdout] | [INFO] [stdout] 23 | fn read(&self) -> Result> { [INFO] [stdout] | ^^^^ help: use `dyn`: `dyn Read` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/source.rs:26:22 [INFO] [stdout] | [INFO] [stdout] 26 | let out: Box = match *self { [INFO] [stdout] | ^^^^ help: use `dyn`: `dyn Read` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/source.rs:171:38 [INFO] [stdout] | [INFO] [stdout] 171 | pub fn read(&self) -> Result> { [INFO] [stdout] | ^^^^ help: use `dyn`: `dyn Read` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/utils.rs:16:31 [INFO] [stdout] | [INFO] [stdout] 16 | pub fn find_line<'a, R: AsMut>( [INFO] [stdout] | ^^^^^^^^^ help: use `dyn`: `dyn Read + 'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/utils.rs:63:32 [INFO] [stdout] | [INFO] [stdout] 63 | pub fn find_range<'a, R: AsMut, S: Into>( [INFO] [stdout] | ^^^^^^^^^ help: use `dyn`: `dyn Read + 'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred [INFO] [stdout] --> src/errors.rs:131:47 [INFO] [stdout] | [INFO] [stdout] 131 | static ENABLED: atomic::AtomicUsize = atomic::ATOMIC_USIZE_INIT; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated constant: `AtomicUsize::new(0)` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred [INFO] [stdout] --> src/errors.rs:131:47 [INFO] [stdout] | [INFO] [stdout] 131 | static ENABLED: atomic::AtomicUsize = atomic::ATOMIC_USIZE_INIT; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated constant: `AtomicUsize::new(0)` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/rp_package.rs:121:17 [INFO] [stdout] | [INFO] [stdout] 121 | mem::replace(p, keyword.to_string()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/rp_package.rs:135:13 [INFO] [stdout] | [INFO] [stdout] 135 | mem::replace(p, new_name); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 21 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/rp_package.rs:121:17 [INFO] [stdout] | [INFO] [stdout] 121 | mem::replace(p, keyword.to_string()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/rp_package.rs:135:13 [INFO] [stdout] | [INFO] [stdout] 135 | mem::replace(p, new_name); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 21 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 54.50s [INFO] running `Command { std: "docker" "inspect" "06dce8cf9e11866a803d26fccc06f9297d1528aa6cc851f4129fca2765eca38b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "06dce8cf9e11866a803d26fccc06f9297d1528aa6cc851f4129fca2765eca38b", kill_on_drop: false }` [INFO] [stdout] 06dce8cf9e11866a803d26fccc06f9297d1528aa6cc851f4129fca2765eca38b