[INFO] cloning repository https://github.com/programmerjake/hashlife3d [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/programmerjake/hashlife3d" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprogrammerjake%2Fhashlife3d", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprogrammerjake%2Fhashlife3d'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 15551958ebbfe3ac6e58508a8f1cde9d797a6e0a [INFO] checking programmerjake/hashlife3d against master#dfdbe30004a095ad63951c4cd6e10a9a971a7399 for pr-120932 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprogrammerjake%2Fhashlife3d" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/programmerjake/hashlife3d on toolchain dfdbe30004a095ad63951c4cd6e10a9a971a7399 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dfdbe30004a095ad63951c4cd6e10a9a971a7399" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/programmerjake/hashlife3d [INFO] finished tweaking git repo https://github.com/programmerjake/hashlife3d [INFO] tweaked toml for git repo https://github.com/programmerjake/hashlife3d written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/programmerjake/hashlife3d 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" "+dfdbe30004a095ad63951c4cd6e10a9a971a7399" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [ERROR] this task or one of its parent failed! [ERROR] no output for 300 seconds [ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace. [INFO] checking programmerjake/hashlife3d against master#ba824a2e25948a86596ccf7594afe548020e86e6 for pr-120932 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprogrammerjake%2Fhashlife3d" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/programmerjake/hashlife3d on toolchain ba824a2e25948a86596ccf7594afe548020e86e6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ba824a2e25948a86596ccf7594afe548020e86e6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/programmerjake/hashlife3d [INFO] finished tweaking git repo https://github.com/programmerjake/hashlife3d [INFO] tweaked toml for git repo https://github.com/programmerjake/hashlife3d written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/programmerjake/hashlife3d 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" "+ba824a2e25948a86596ccf7594afe548020e86e6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [INFO] checking programmerjake/hashlife3d against master#ba824a2e25948a86596ccf7594afe548020e86e6 for pr-120932 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprogrammerjake%2Fhashlife3d" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/programmerjake/hashlife3d on toolchain ba824a2e25948a86596ccf7594afe548020e86e6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ba824a2e25948a86596ccf7594afe548020e86e6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/programmerjake/hashlife3d [INFO] finished tweaking git repo https://github.com/programmerjake/hashlife3d [INFO] tweaked toml for git repo https://github.com/programmerjake/hashlife3d written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/programmerjake/hashlife3d 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" "+ba824a2e25948a86596ccf7594afe548020e86e6" "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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded quantiles v0.7.1 [INFO] [stderr] Downloaded cmake v0.1.33 [INFO] [stderr] Downloaded digest v0.7.5 [INFO] [stderr] Downloaded proc-macro2 v0.4.18 [INFO] [stderr] Downloaded glsl-to-spirv v0.1.6 [INFO] [stderr] Downloaded serde_test v1.0.79 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ba824a2e25948a86596ccf7594afe548020e86e6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0a6cc2d0a0aa3fd5bd2f91cf97878014da25573c2fae6b423a4418b9a3d791cb [INFO] running `Command { std: "docker" "start" "-a" "0a6cc2d0a0aa3fd5bd2f91cf97878014da25573c2fae6b423a4418b9a3d791cb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0a6cc2d0a0aa3fd5bd2f91cf97878014da25573c2fae6b423a4418b9a3d791cb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0a6cc2d0a0aa3fd5bd2f91cf97878014da25573c2fae6b423a4418b9a3d791cb", kill_on_drop: false }` [INFO] [stdout] 0a6cc2d0a0aa3fd5bd2f91cf97878014da25573c2fae6b423a4418b9a3d791cb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ba824a2e25948a86596ccf7594afe548020e86e6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9488173ea3a1e6089401633a63694c177de568fe9eec9d6134cf3dda1c0a974b [INFO] running `Command { std: "docker" "start" "-a" "9488173ea3a1e6089401633a63694c177de568fe9eec9d6134cf3dda1c0a974b", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.43 [INFO] [stderr] Compiling cfg-if v0.1.5 [INFO] [stderr] Compiling rustc-serialize v0.3.24 [INFO] [stderr] Compiling unicode-xid v0.0.4 [INFO] [stderr] Compiling version_check v0.1.4 [INFO] [stderr] Compiling term v0.4.6 [INFO] [stderr] Compiling bitflags v0.8.2 [INFO] [stderr] Compiling glob v0.2.11 [INFO] [stderr] Compiling log v0.4.3 [INFO] [stderr] Compiling libloading v0.4.3 [INFO] [stderr] Compiling regex v0.2.11 [INFO] [stderr] Compiling log v0.3.9 [INFO] [stderr] Compiling lazy_static v1.1.0 [INFO] [stderr] Compiling ucd-util v0.1.1 [INFO] [stdout] error[E0310]: the parameter type `T` may not live long enough [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/rustc-serialize-0.3.24/src/serialize.rs:1155:5 [INFO] [stdout] | [INFO] [stdout] 1155 | fn decode(d: &mut D) -> Result, D::Error> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | the parameter type `T` must be valid for the static lifetime... [INFO] [stdout] | ...so that the type `T` will meet its required lifetime bounds... [INFO] [stdout] | [INFO] [stdout] note: ...that is required by this bound [INFO] [stdout] --> /rustc/ba824a2e25948a86596ccf7594afe548020e86e6/library/alloc/src/borrow.rs:180:30 [INFO] [stdout] help: consider adding an explicit lifetime bound [INFO] [stdout] | [INFO] [stdout] 1151 | impl<'a, T: ?Sized + 'static> Decodable for Cow<'a, T> [INFO] [stdout] | +++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling utf8-ranges v1.0.0 [INFO] [stderr] Compiling clang-sys v0.21.2 [INFO] [stderr] Compiling memchr v2.0.1 [INFO] [stderr] Compiling memchr v1.0.2 [INFO] [stderr] Compiling regex-syntax v0.5.6 [INFO] [stderr] Compiling aho-corasick v0.6.6 [INFO] [stderr] Compiling unicode-width v0.1.5 [INFO] [stderr] Compiling nom v3.2.1 [INFO] [stderr] Compiling thread_local v0.3.6 [INFO] [stderr] Compiling textwrap v0.10.0 [INFO] [stderr] Compiling atty v0.2.11 [INFO] [stderr] Compiling ansi_term v0.11.0 [INFO] [stderr] Compiling bitflags v1.0.3 [INFO] [stderr] Compiling vec_map v0.8.1 [INFO] [stderr] Compiling strsim v0.7.0 [INFO] [stderr] Compiling peeking_take_while v0.1.2 [INFO] [stderr] Compiling lazy_static v0.2.11 [INFO] [stderr] Compiling clap v2.32.0 [INFO] [stderr] Checking voxels-math v0.1.0 (/opt/rustwide/workdir/voxels-math) [INFO] [stderr] Compiling typenum v1.10.0 [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> voxels-math/src/lib.rs:44:37 [INFO] [stdout] | [INFO] [stdout] 44 | impl VecRef for Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [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] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 44 | impl VecRef for dyn Vec { [INFO] [stdout] | +++ [INFO] [stdout] help: alternatively use a blanket implementation to implement `VecRef` for all types that also implement `Vec` [INFO] [stdout] | [INFO] [stdout] 44 | impl> VecRef for U { [INFO] [stdout] | ++++++++++++++++++++++++++++++++++++ ~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> voxels-math/src/lib.rs:50:45 [INFO] [stdout] | [INFO] [stdout] 50 | impl<'a, T, S: VecSizeTrait> VecRef for &'a Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [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] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 50 | impl<'a, T, S: VecSizeTrait> VecRef for &'a dyn Vec { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> voxels-math/src/lib.rs:56:49 [INFO] [stdout] | [INFO] [stdout] 56 | impl<'a, T, S: VecSizeTrait> VecRef for &'a mut Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [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] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 56 | impl<'a, T, S: VecSizeTrait> VecRef for &'a mut dyn Vec { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking adler32 v1.0.3 [INFO] [stderr] Checking inflate v0.4.3 [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking voxels-image-base v0.1.0 (/opt/rustwide/workdir/voxels-image-base) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> voxels-image-base/src/lib.rs:37:41 [INFO] [stdout] | [INFO] [stdout] 37 | impl io::Result>> PixelBufferFactory for T { [INFO] [stdout] | ^^^^^^^^^^^ [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] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 37 | impl io::Result>> PixelBufferFactory for T { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> voxels-image-base/src/lib.rs:57:17 [INFO] [stdout] | [INFO] [stdout] 57 | pixels: Box, [INFO] [stdout] | ^^^^^^^^^^^ [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] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 57 | pixels: Box, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> voxels-image-base/src/lib.rs:70:21 [INFO] [stdout] | [INFO] [stdout] 70 | pub pixels: Box, [INFO] [stdout] | ^^^^^^^^^^^ [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] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 70 | pub pixels: Box, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> voxels-image-base/src/lib.rs:34:64 [INFO] [stdout] | [INFO] [stdout] 34 | fn create_pixel_buffer(self, len: usize) -> io::Result>; [INFO] [stdout] | ^^^^^^^^^^^ [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] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 34 | fn create_pixel_buffer(self, len: usize) -> io::Result>; [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> voxels-image-base/src/lib.rs:38:64 [INFO] [stdout] | [INFO] [stdout] 38 | fn create_pixel_buffer(self, len: usize) -> io::Result> { [INFO] [stdout] | ^^^^^^^^^^^ [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] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 38 | fn create_pixel_buffer(self, len: usize) -> io::Result> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> voxels-image-base/src/lib.rs:46:64 [INFO] [stdout] | [INFO] [stdout] 46 | fn create_pixel_buffer(self, len: usize) -> io::Result> { [INFO] [stdout] | ^^^^^^^^^^^ [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] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 46 | fn create_pixel_buffer(self, len: usize) -> io::Result> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> voxels-image-base/src/lib.rs:249:21 [INFO] [stdout] | [INFO] [stdout] 249 | pixels: Box, [INFO] [stdout] | ^^^^^^^^^^^ [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] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 249 | pixels: Box, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> voxels-image-base/src/lib.rs:267:37 [INFO] [stdout] | [INFO] [stdout] 267 | pub fn into_pixels(self) -> Box { [INFO] [stdout] | ^^^^^^^^^^^ [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] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 267 | pub fn into_pixels(self) -> Box { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> voxels-image-base/src/lib.rs:270:38 [INFO] [stdout] | [INFO] [stdout] 270 | pub fn get_pixels(&self) -> &Box { [INFO] [stdout] | ^^^^^^^^^^^ [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] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 270 | pub fn get_pixels(&self) -> &Box { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> voxels-image-base/src/lib.rs:273:50 [INFO] [stdout] | [INFO] [stdout] 273 | pub fn get_mut_pixels(&mut self) -> &mut Box { [INFO] [stdout] | ^^^^^^^^^^^ [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] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 273 | pub fn get_mut_pixels(&mut self) -> &mut Box { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling pkg-config v0.3.13 [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0310`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rustc-serialize` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "9488173ea3a1e6089401633a63694c177de568fe9eec9d6134cf3dda1c0a974b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9488173ea3a1e6089401633a63694c177de568fe9eec9d6134cf3dda1c0a974b", kill_on_drop: false }` [INFO] [stdout] 9488173ea3a1e6089401633a63694c177de568fe9eec9d6134cf3dda1c0a974b