[INFO] fetching crate buf_redux 0.8.4... [INFO] building buf_redux-0.8.4 against master#d5c88c22807925c189328ef9d923c5d2b11a95b8 for pr-87066-3 [INFO] extracting crate buf_redux 0.8.4 into /workspace/builds/worker-14/source [INFO] validating manifest of crates.io crate buf_redux 0.8.4 on toolchain d5c88c22807925c189328ef9d923c5d2b11a95b8 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate buf_redux 0.8.4 [INFO] finished tweaking crates.io crate buf_redux 0.8.4 [INFO] tweaked toml for crates.io crate buf_redux 0.8.4 written to /workspace/builds/worker-14/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a8a59cfd4aad0c2fe07620519c464d60bf51ad29b7ecc7e0c1b56774168e952a [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" "a8a59cfd4aad0c2fe07620519c464d60bf51ad29b7ecc7e0c1b56774168e952a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a8a59cfd4aad0c2fe07620519c464d60bf51ad29b7ecc7e0c1b56774168e952a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a8a59cfd4aad0c2fe07620519c464d60bf51ad29b7ecc7e0c1b56774168e952a", kill_on_drop: false }` [INFO] [stdout] a8a59cfd4aad0c2fe07620519c464d60bf51ad29b7ecc7e0c1b56774168e952a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e1b6febc78eaccd7280d17de268d4977ece7cdae6ac0d653758f51d128b4e3ba [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" "e1b6febc78eaccd7280d17de268d4977ece7cdae6ac0d653758f51d128b4e3ba", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.99 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Compiling safemem v0.3.3 [INFO] [stderr] Compiling slice-deque v0.2.4 [INFO] [stderr] Compiling buf_redux v0.8.4 (/opt/rustwide/workdir) [INFO] [stdout] warning: trailing semicolon in macro used in expression position [INFO] [stdout] --> src/policy.rs:25:57 [INFO] [stdout] | [INFO] [stdout] 25 | ($val:expr) => ( return $crate::policy::DoRead($val); ); [INFO] [stdout] | ^ [INFO] [stdout] ... [INFO] [stdout] 118 | if buffer.len() >= self.0 { do_read!(false) } [INFO] [stdout] | --------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #79813 [INFO] [stdout] = note: macro invocations at the end of a block are treated as expressions [INFO] [stdout] = note: to ignore the value produced by the macro, add a semicolon after the invocation of `do_read` [INFO] [stdout] = note: this warning originates in the macro `do_read` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:373:45 [INFO] [stdout] | [INFO] [stdout] 373 | pub fn boxed<'a>(self) -> BufReader, P> where R: 'a { [INFO] [stdout] | ^^^^^^^^^ help: use `dyn`: `dyn Read + 'a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:374:24 [INFO] [stdout] | [INFO] [stdout] 374 | let inner: Box = Box::new(self.inner); [INFO] [stdout] | ^^^^^^^^^ help: use `dyn`: `dyn Read + 'a` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:871:32 [INFO] [stdout] | [INFO] [stdout] 871 | fn cause(&self) -> Option<&error::Error> { [INFO] [stdout] | ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:1273:42 [INFO] [stdout] | [INFO] [stdout] 1273 | static DROP_ERR_HANDLER: RefCell> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Write, &mut Buffer, io::Error)` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:1273:50 [INFO] [stdout] | [INFO] [stdout] 1273 | static DROP_ERR_HANDLER: RefCell> [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Write` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:1286:18 [INFO] [stdout] | [INFO] [stdout] 1286 | where F: Fn(&mut Write, &mut Buffer, io::Error) [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Write` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/lib.rs:868:23 [INFO] [stdout] | [INFO] [stdout] 868 | error::Error::description(self.error()) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:1050:17 [INFO] [stdout] | [INFO] [stdout] 1050 | let mut buf = unsafe { self.buf.write_buf() }; [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:1068:17 [INFO] [stdout] | [INFO] [stdout] 1068 | let mut buf = self.buf.write_buf(); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 4.14s [INFO] running `Command { std: "docker" "inspect" "e1b6febc78eaccd7280d17de268d4977ece7cdae6ac0d653758f51d128b4e3ba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e1b6febc78eaccd7280d17de268d4977ece7cdae6ac0d653758f51d128b4e3ba", kill_on_drop: false }` [INFO] [stdout] e1b6febc78eaccd7280d17de268d4977ece7cdae6ac0d653758f51d128b4e3ba [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ed07d582333eed80c1314b091b152f2af942d80d2c70efeedd94ab1814ea3e7a [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" "ed07d582333eed80c1314b091b152f2af942d80d2c70efeedd94ab1814ea3e7a", kill_on_drop: false }` [INFO] [stderr] Compiling buf_redux v0.8.4 (/opt/rustwide/workdir) [INFO] [stdout] warning: trailing semicolon in macro used in expression position [INFO] [stdout] --> src/policy.rs:25:57 [INFO] [stdout] | [INFO] [stdout] 25 | ($val:expr) => ( return $crate::policy::DoRead($val); ); [INFO] [stdout] | ^ [INFO] [stdout] ... [INFO] [stdout] 118 | if buffer.len() >= self.0 { do_read!(false) } [INFO] [stdout] | --------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #79813 [INFO] [stdout] = note: macro invocations at the end of a block are treated as expressions [INFO] [stdout] = note: to ignore the value produced by the macro, add a semicolon after the invocation of `do_read` [INFO] [stdout] = note: this warning originates in the macro `do_read` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:373:45 [INFO] [stdout] | [INFO] [stdout] 373 | pub fn boxed<'a>(self) -> BufReader, P> where R: 'a { [INFO] [stdout] | ^^^^^^^^^ help: use `dyn`: `dyn Read + 'a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:374:24 [INFO] [stdout] | [INFO] [stdout] 374 | let inner: Box = Box::new(self.inner); [INFO] [stdout] | ^^^^^^^^^ help: use `dyn`: `dyn Read + 'a` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:871:32 [INFO] [stdout] | [INFO] [stdout] 871 | fn cause(&self) -> Option<&error::Error> { [INFO] [stdout] | ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:1273:42 [INFO] [stdout] | [INFO] [stdout] 1273 | static DROP_ERR_HANDLER: RefCell> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Write, &mut Buffer, io::Error)` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:1273:50 [INFO] [stdout] | [INFO] [stdout] 1273 | static DROP_ERR_HANDLER: RefCell> [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Write` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:1286:18 [INFO] [stdout] | [INFO] [stdout] 1286 | where F: Fn(&mut Write, &mut Buffer, io::Error) [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Write` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/lib.rs:868:23 [INFO] [stdout] | [INFO] [stdout] 868 | error::Error::description(self.error()) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:1050:17 [INFO] [stdout] | [INFO] [stdout] 1050 | let mut buf = unsafe { self.buf.write_buf() }; [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:1068:17 [INFO] [stdout] | [INFO] [stdout] 1068 | let mut buf = self.buf.write_buf(); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trailing semicolon in macro used in expression position [INFO] [stdout] --> src/policy.rs:25:57 [INFO] [stdout] | [INFO] [stdout] 25 | ($val:expr) => ( return $crate::policy::DoRead($val); ); [INFO] [stdout] | ^ [INFO] [stdout] ... [INFO] [stdout] 118 | if buffer.len() >= self.0 { do_read!(false) } [INFO] [stdout] | --------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #79813 [INFO] [stdout] = note: macro invocations at the end of a block are treated as expressions [INFO] [stdout] = note: to ignore the value produced by the macro, add a semicolon after the invocation of `do_read` [INFO] [stdout] = note: this warning originates in the macro `do_read` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:373:45 [INFO] [stdout] | [INFO] [stdout] 373 | pub fn boxed<'a>(self) -> BufReader, P> where R: 'a { [INFO] [stdout] | ^^^^^^^^^ help: use `dyn`: `dyn Read + 'a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:374:24 [INFO] [stdout] | [INFO] [stdout] 374 | let inner: Box = Box::new(self.inner); [INFO] [stdout] | ^^^^^^^^^ help: use `dyn`: `dyn Read + 'a` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:871:32 [INFO] [stdout] | [INFO] [stdout] 871 | fn cause(&self) -> Option<&error::Error> { [INFO] [stdout] | ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:1273:42 [INFO] [stdout] | [INFO] [stdout] 1273 | static DROP_ERR_HANDLER: RefCell> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Write, &mut Buffer, io::Error)` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:1273:50 [INFO] [stdout] | [INFO] [stdout] 1273 | static DROP_ERR_HANDLER: RefCell> [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Write` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:1286:18 [INFO] [stdout] | [INFO] [stdout] 1286 | where F: Fn(&mut Write, &mut Buffer, io::Error) [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Write` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/lib.rs:868:23 [INFO] [stdout] | [INFO] [stdout] 868 | error::Error::description(self.error()) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:1050:17 [INFO] [stdout] | [INFO] [stdout] 1050 | let mut buf = unsafe { self.buf.write_buf() }; [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:1068:17 [INFO] [stdout] | [INFO] [stdout] 1068 | let mut buf = self.buf.write_buf(); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.76s [INFO] running `Command { std: "docker" "inspect" "ed07d582333eed80c1314b091b152f2af942d80d2c70efeedd94ab1814ea3e7a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ed07d582333eed80c1314b091b152f2af942d80d2c70efeedd94ab1814ea3e7a", kill_on_drop: false }` [INFO] [stdout] ed07d582333eed80c1314b091b152f2af942d80d2c70efeedd94ab1814ea3e7a