[INFO] updating cached repository https://github.com/PeterCxy/huffman-coding-cse104-rust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f8dae1c157f776aaa7c340f21ebca5741efc6893
[INFO] testing PeterCxy/huffman-coding-cse104-rust against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPeterCxy%2Fhuffman-coding-cse104-rust" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PeterCxy/huffman-coding-cse104-rust on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-1/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 `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3be4b301557a3916ee7e0c647de1a5c1d4664d94a1c7cdefe5e97c7873010f09
[INFO] running `"docker" "start" "-a" "3be4b301557a3916ee7e0c647de1a5c1d4664d94a1c7cdefe5e97c7873010f09"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling huffman v0.1.0 (/opt/rustwide/workdir)
[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<Result<(BitVec<u32>, u8), TreeTraverser<'a>>> {
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn TraversableNode`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[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]     |                                                 ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn TraversableNode`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.16s
[INFO] running `"docker" "inspect" "3be4b301557a3916ee7e0c647de1a5c1d4664d94a1c7cdefe5e97c7873010f09"`
[INFO] running `"docker" "rm" "-f" "3be4b301557a3916ee7e0c647de1a5c1d4664d94a1c7cdefe5e97c7873010f09"`
[INFO] [stdout] 3be4b301557a3916ee7e0c647de1a5c1d4664d94a1c7cdefe5e97c7873010f09
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2455fe94e8ca08531e209384ac8db3540fae5ae7da42c21adf0b312a99308365
[INFO] running `"docker" "start" "-a" "2455fe94e8ca08531e209384ac8db3540fae5ae7da42c21adf0b312a99308365"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling huffman v0.1.0 (/opt/rustwide/workdir)
[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<Result<(BitVec<u32>, u8), TreeTraverser<'a>>> {
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn TraversableNode`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[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]     |                                                 ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn TraversableNode`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `"docker" "inspect" "2455fe94e8ca08531e209384ac8db3540fae5ae7da42c21adf0b312a99308365"`
[INFO] running `"docker" "rm" "-f" "2455fe94e8ca08531e209384ac8db3540fae5ae7da42c21adf0b312a99308365"`
[INFO] [stdout] 2455fe94e8ca08531e209384ac8db3540fae5ae7da42c21adf0b312a99308365
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 62a98e7bd4be5694586226310b5803ede69124bffcc49a9ed9f4845d1d6b2611
[INFO] running `"docker" "start" "-a" "62a98e7bd4be5694586226310b5803ede69124bffcc49a9ed9f4845d1d6b2611"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[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<Result<(BitVec<u32>, u8), TreeTraverser<'a>>> {
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn TraversableNode`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[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]     |                                                 ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn TraversableNode`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/huffman-0d54699c59c0cf56
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "62a98e7bd4be5694586226310b5803ede69124bffcc49a9ed9f4845d1d6b2611"`
[INFO] running `"docker" "rm" "-f" "62a98e7bd4be5694586226310b5803ede69124bffcc49a9ed9f4845d1d6b2611"`
[INFO] [stdout] 62a98e7bd4be5694586226310b5803ede69124bffcc49a9ed9f4845d1d6b2611