[INFO] cloning repository https://github.com/PeterCxy/huffman-coding-cse104-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PeterCxy/huffman-coding-cse104-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPeterCxy%2Fhuffman-coding-cse104-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPeterCxy%2Fhuffman-coding-cse104-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f8dae1c157f776aaa7c340f21ebca5741efc6893 [INFO] testing PeterCxy/huffman-coding-cse104-rust against beta-2022-04-10 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPeterCxy%2Fhuffman-coding-cse104-rust" "/workspace/builds/worker-11/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/PeterCxy/huffman-coding-cse104-rust on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/PeterCxy/huffman-coding-cse104-rust [INFO] finished tweaking git repo https://github.com/PeterCxy/huffman-coding-cse104-rust [INFO] tweaked toml for git repo https://github.com/PeterCxy/huffman-coding-cse104-rust written to /workspace/builds/worker-11/source/Cargo.toml [INFO] crate git repo https://github.com/PeterCxy/huffman-coding-cse104-rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f92650863e337808ac5172042adf306f025a0a90d93fb30385b70863191c2c81 [INFO] running `Command { std: "docker" "start" "-a" "f92650863e337808ac5172042adf306f025a0a90d93fb30385b70863191c2c81", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f92650863e337808ac5172042adf306f025a0a90d93fb30385b70863191c2c81", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f92650863e337808ac5172042adf306f025a0a90d93fb30385b70863191c2c81", kill_on_drop: false }` [INFO] [stdout] f92650863e337808ac5172042adf306f025a0a90d93fb30385b70863191c2c81 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5b6d2159cf461a44e576249569e339c4b2d7ba849a70a82d7ce2b03eaaaf598d [INFO] running `Command { std: "docker" "start" "-a" "5b6d2159cf461a44e576249569e339c4b2d7ba849a70a82d7ce2b03eaaaf598d", kill_on_drop: false }` [INFO] [stderr] Compiling bit-vec v0.4.4 [INFO] [stderr] Compiling huffman v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:177:49 [INFO] [stdout] | [INFO] [stdout] 177 | fn _huffman_decode_step(cur_value: bool, node: &TraversableNode) -> &TreeNode { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [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] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 177 - fn _huffman_decode_step(cur_value: bool, node: &TraversableNode) -> &TreeNode { [INFO] [stdout] 177 + fn _huffman_decode_step(cur_value: bool, node: &dyn TraversableNode) -> &TreeNode { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/traversal.rs:50:47 [INFO] [stdout] | [INFO] [stdout] 50 | fn visit_node<'b>(&'b mut self, node: &'a TraversableNode) -> Option, u8), TreeTraverser<'a>>> { [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: use `dyn` [INFO] [stdout] | [INFO] [stdout] 50 - fn visit_node<'b>(&'b mut self, node: &'a TraversableNode) -> Option, u8), TreeTraverser<'a>>> { [INFO] [stdout] 50 + fn visit_node<'b>(&'b mut self, node: &'a dyn TraversableNode) -> Option, u8), TreeTraverser<'a>>> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.45s [INFO] running `Command { std: "docker" "inspect" "5b6d2159cf461a44e576249569e339c4b2d7ba849a70a82d7ce2b03eaaaf598d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5b6d2159cf461a44e576249569e339c4b2d7ba849a70a82d7ce2b03eaaaf598d", kill_on_drop: false }` [INFO] [stdout] 5b6d2159cf461a44e576249569e339c4b2d7ba849a70a82d7ce2b03eaaaf598d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c5b4148f6b905718d0d3f4eb47425f85e7077ac0dcaf87bf3a7e154bfdc8152d [INFO] running `Command { std: "docker" "start" "-a" "c5b4148f6b905718d0d3f4eb47425f85e7077ac0dcaf87bf3a7e154bfdc8152d", kill_on_drop: false }` [INFO] [stderr] Compiling huffman v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:177:49 [INFO] [stdout] | [INFO] [stdout] 177 | fn _huffman_decode_step(cur_value: bool, node: &TraversableNode) -> &TreeNode { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [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] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 177 - fn _huffman_decode_step(cur_value: bool, node: &TraversableNode) -> &TreeNode { [INFO] [stdout] 177 + fn _huffman_decode_step(cur_value: bool, node: &dyn TraversableNode) -> &TreeNode { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/traversal.rs:50:47 [INFO] [stdout] | [INFO] [stdout] 50 | fn visit_node<'b>(&'b mut self, node: &'a TraversableNode) -> Option, u8), TreeTraverser<'a>>> { [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: use `dyn` [INFO] [stdout] | [INFO] [stdout] 50 - fn visit_node<'b>(&'b mut self, node: &'a TraversableNode) -> Option, u8), TreeTraverser<'a>>> { [INFO] [stdout] 50 + fn visit_node<'b>(&'b mut self, node: &'a dyn TraversableNode) -> Option, u8), TreeTraverser<'a>>> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.36s [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/huffman-2d36c72acdf6e28d) [INFO] running `Command { std: "docker" "inspect" "c5b4148f6b905718d0d3f4eb47425f85e7077ac0dcaf87bf3a7e154bfdc8152d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c5b4148f6b905718d0d3f4eb47425f85e7077ac0dcaf87bf3a7e154bfdc8152d", kill_on_drop: false }` [INFO] [stdout] c5b4148f6b905718d0d3f4eb47425f85e7077ac0dcaf87bf3a7e154bfdc8152d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] b22a9406e3fed4821f091a59e9e7bd7d3e94ab2744b9496385d8e0f8acadb0f7 [INFO] running `Command { std: "docker" "start" "-a" "b22a9406e3fed4821f091a59e9e7bd7d3e94ab2744b9496385d8e0f8acadb0f7", kill_on_drop: false }` [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:177:49 [INFO] [stderr] | [INFO] [stderr] 177 | fn _huffman_decode_step(cur_value: bool, node: &TraversableNode) -> &TreeNode { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 177 - fn _huffman_decode_step(cur_value: bool, node: &TraversableNode) -> &TreeNode { [INFO] [stderr] 177 + fn _huffman_decode_step(cur_value: bool, node: &dyn TraversableNode) -> &TreeNode { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/traversal.rs:50:47 [INFO] [stderr] | [INFO] [stderr] 50 | fn visit_node<'b>(&'b mut self, node: &'a TraversableNode) -> Option, u8), TreeTraverser<'a>>> { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 50 - fn visit_node<'b>(&'b mut self, node: &'a TraversableNode) -> Option, u8), TreeTraverser<'a>>> { [INFO] [stderr] 50 + fn visit_node<'b>(&'b mut self, node: &'a dyn TraversableNode) -> Option, u8), TreeTraverser<'a>>> { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `huffman` (bin "huffman" test) generated 2 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/huffman-2d36c72acdf6e28d) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "b22a9406e3fed4821f091a59e9e7bd7d3e94ab2744b9496385d8e0f8acadb0f7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b22a9406e3fed4821f091a59e9e7bd7d3e94ab2744b9496385d8e0f8acadb0f7", kill_on_drop: false }` [INFO] [stdout] b22a9406e3fed4821f091a59e9e7bd7d3e94ab2744b9496385d8e0f8acadb0f7