[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 1.59.0 for beta-1.60-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPeterCxy%2Fhuffman-coding-cse104-rust" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/PeterCxy/huffman-coding-cse104-rust on toolchain 1.59.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-4/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" "+1.59.0" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9105af210cab96ce154ff60c5273e3911817125818d4e26c906adb2176ac65e7 [INFO] running `Command { std: "docker" "start" "-a" "9105af210cab96ce154ff60c5273e3911817125818d4e26c906adb2176ac65e7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9105af210cab96ce154ff60c5273e3911817125818d4e26c906adb2176ac65e7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9105af210cab96ce154ff60c5273e3911817125818d4e26c906adb2176ac65e7", kill_on_drop: false }` [INFO] [stdout] 9105af210cab96ce154ff60c5273e3911817125818d4e26c906adb2176ac65e7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 43c0d335e327a51d20f096aa611e3b2428cd83d5c64a98d947e0c2c9d273aacf [INFO] running `Command { std: "docker" "start" "-a" "43c0d335e327a51d20f096aa611e3b2428cd83d5c64a98d947e0c2c9d273aacf", kill_on_drop: false }` [INFO] [stderr] Compiling byteorder v1.2.1 [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 1.71s [INFO] running `Command { std: "docker" "inspect" "43c0d335e327a51d20f096aa611e3b2428cd83d5c64a98d947e0c2c9d273aacf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "43c0d335e327a51d20f096aa611e3b2428cd83d5c64a98d947e0c2c9d273aacf", kill_on_drop: false }` [INFO] [stdout] 43c0d335e327a51d20f096aa611e3b2428cd83d5c64a98d947e0c2c9d273aacf [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9d98a07efcc9a400d316cf2a2b4368aeed67d25df9171ee196f4e74d3e5a23a3 [INFO] running `Command { std: "docker" "start" "-a" "9d98a07efcc9a400d316cf2a2b4368aeed67d25df9171ee196f4e74d3e5a23a3", 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 0.39s [INFO] running `Command { std: "docker" "inspect" "9d98a07efcc9a400d316cf2a2b4368aeed67d25df9171ee196f4e74d3e5a23a3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9d98a07efcc9a400d316cf2a2b4368aeed67d25df9171ee196f4e74d3e5a23a3", kill_on_drop: false }` [INFO] [stdout] 9d98a07efcc9a400d316cf2a2b4368aeed67d25df9171ee196f4e74d3e5a23a3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 5c136cd8be5c383ec7c797ca4eae54ed3e1b6d660eeed13bdd08b6b43ec79ad3 [INFO] running `Command { std: "docker" "start" "-a" "5c136cd8be5c383ec7c797ca4eae54ed3e1b6d660eeed13bdd08b6b43ec79ad3", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [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 0.15s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/huffman-f939ffdbf1a2f593) [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" "5c136cd8be5c383ec7c797ca4eae54ed3e1b6d660eeed13bdd08b6b43ec79ad3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5c136cd8be5c383ec7c797ca4eae54ed3e1b6d660eeed13bdd08b6b43ec79ad3", kill_on_drop: false }` [INFO] [stdout] 5c136cd8be5c383ec7c797ca4eae54ed3e1b6d660eeed13bdd08b6b43ec79ad3