[INFO] cloning repository https://github.com/shrey150/huffman-coding-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shrey150/huffman-coding-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshrey150%2Fhuffman-coding-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshrey150%2Fhuffman-coding-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e428c5b59d4cb364d5357aa9a29340e5fa6d9f90 [INFO] testing shrey150/huffman-coding-rs against master#1871252fc8bb672d40787e67404e6eaae7059369 for pr-125151 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshrey150%2Fhuffman-coding-rs" "/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/shrey150/huffman-coding-rs on toolchain 1871252fc8bb672d40787e67404e6eaae7059369 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/shrey150/huffman-coding-rs [INFO] finished tweaking git repo https://github.com/shrey150/huffman-coding-rs [INFO] tweaked toml for git repo https://github.com/shrey150/huffman-coding-rs written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/shrey150/huffman-coding-rs 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" "+1871252fc8bb672d40787e67404e6eaae7059369" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 87b2bd92829cdaef91b9068a66608d5ab4f55b878826704a5ffe651e1839719a [INFO] running `Command { std: "docker" "start" "-a" "87b2bd92829cdaef91b9068a66608d5ab4f55b878826704a5ffe651e1839719a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "87b2bd92829cdaef91b9068a66608d5ab4f55b878826704a5ffe651e1839719a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "87b2bd92829cdaef91b9068a66608d5ab4f55b878826704a5ffe651e1839719a", kill_on_drop: false }` [INFO] [stdout] 87b2bd92829cdaef91b9068a66608d5ab4f55b878826704a5ffe651e1839719a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 154ebaafc111f264778d869ccabee32ed6861f6f17c4c729a11c1dde50cbe0c3 [INFO] running `Command { std: "docker" "start" "-a" "154ebaafc111f264778d869ccabee32ed6861f6f17c4c729a11c1dde50cbe0c3", kill_on_drop: false }` [INFO] [stderr] Compiling huffman-coding-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `codes` [INFO] [stdout] --> src/main.rs:177:18 [INFO] [stdout] | [INFO] [stdout] 177 | fn canon_to_huff(codes: Vec<(char, usize)>) -> HuffMap { HuffMap::new() } [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_codes` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `print_tree` is never used [INFO] [stdout] --> src/main.rs:70:4 [INFO] [stdout] | [INFO] [stdout] 70 | fn print_tree(root: &Node, branch: &str, depth: usize) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `ilog2` is never used [INFO] [stdout] --> src/main.rs:106:4 [INFO] [stdout] | [INFO] [stdout] 106 | fn ilog2(mut n: usize) -> usize { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `get_bitlen` is never used [INFO] [stdout] --> src/main.rs:115:4 [INFO] [stdout] | [INFO] [stdout] 115 | fn get_bitlen(n: usize) -> usize { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `huff_to_canon` is never used [INFO] [stdout] --> src/main.rs:121:4 [INFO] [stdout] | [INFO] [stdout] 121 | fn huff_to_canon(map: HuffMap) -> Vec<(char, usize)> { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `canon_to_huff` is never used [INFO] [stdout] --> src/main.rs:177:4 [INFO] [stdout] | [INFO] [stdout] 177 | fn canon_to_huff(codes: Vec<(char, usize)>) -> HuffMap { HuffMap::new() } [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.36s [INFO] running `Command { std: "docker" "inspect" "154ebaafc111f264778d869ccabee32ed6861f6f17c4c729a11c1dde50cbe0c3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "154ebaafc111f264778d869ccabee32ed6861f6f17c4c729a11c1dde50cbe0c3", kill_on_drop: false }` [INFO] [stdout] 154ebaafc111f264778d869ccabee32ed6861f6f17c4c729a11c1dde50cbe0c3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2ba48deb55975b8e92124ebec53bbad8241b43898b81ae55c275d0a686cb657e [INFO] running `Command { std: "docker" "start" "-a" "2ba48deb55975b8e92124ebec53bbad8241b43898b81ae55c275d0a686cb657e", kill_on_drop: false }` [INFO] [stderr] Compiling huffman-coding-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `codes` [INFO] [stdout] --> src/main.rs:177:18 [INFO] [stdout] | [INFO] [stdout] 177 | fn canon_to_huff(codes: Vec<(char, usize)>) -> HuffMap { HuffMap::new() } [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_codes` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `print_tree` is never used [INFO] [stdout] --> src/main.rs:70:4 [INFO] [stdout] | [INFO] [stdout] 70 | fn print_tree(root: &Node, branch: &str, depth: usize) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `ilog2` is never used [INFO] [stdout] --> src/main.rs:106:4 [INFO] [stdout] | [INFO] [stdout] 106 | fn ilog2(mut n: usize) -> usize { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `get_bitlen` is never used [INFO] [stdout] --> src/main.rs:115:4 [INFO] [stdout] | [INFO] [stdout] 115 | fn get_bitlen(n: usize) -> usize { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `huff_to_canon` is never used [INFO] [stdout] --> src/main.rs:121:4 [INFO] [stdout] | [INFO] [stdout] 121 | fn huff_to_canon(map: HuffMap) -> Vec<(char, usize)> { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `canon_to_huff` is never used [INFO] [stdout] --> src/main.rs:177:4 [INFO] [stdout] | [INFO] [stdout] 177 | fn canon_to_huff(codes: Vec<(char, usize)>) -> HuffMap { HuffMap::new() } [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.36s [INFO] running `Command { std: "docker" "inspect" "2ba48deb55975b8e92124ebec53bbad8241b43898b81ae55c275d0a686cb657e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2ba48deb55975b8e92124ebec53bbad8241b43898b81ae55c275d0a686cb657e", kill_on_drop: false }` [INFO] [stdout] 2ba48deb55975b8e92124ebec53bbad8241b43898b81ae55c275d0a686cb657e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] fa1a2d7982f7e3c9a22b8f0c77f611befb7150688a1b5a2bf601ffe0cc8dcd74 [INFO] running `Command { std: "docker" "start" "-a" "fa1a2d7982f7e3c9a22b8f0c77f611befb7150688a1b5a2bf601ffe0cc8dcd74", kill_on_drop: false }` [INFO] [stderr] warning: unused variable: `codes` [INFO] [stderr] --> src/main.rs:177:18 [INFO] [stderr] | [INFO] [stderr] 177 | fn canon_to_huff(codes: Vec<(char, usize)>) -> HuffMap { HuffMap::new() } [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_codes` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function `print_tree` is never used [INFO] [stderr] --> src/main.rs:70:4 [INFO] [stderr] | [INFO] [stderr] 70 | fn print_tree(root: &Node, branch: &str, depth: usize) { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function `ilog2` is never used [INFO] [stderr] --> src/main.rs:106:4 [INFO] [stderr] | [INFO] [stderr] 106 | fn ilog2(mut n: usize) -> usize { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `get_bitlen` is never used [INFO] [stderr] --> src/main.rs:115:4 [INFO] [stderr] | [INFO] [stderr] 115 | fn get_bitlen(n: usize) -> usize { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `huff_to_canon` is never used [INFO] [stderr] --> src/main.rs:121:4 [INFO] [stderr] | [INFO] [stderr] 121 | fn huff_to_canon(map: HuffMap) -> Vec<(char, usize)> { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `canon_to_huff` is never used [INFO] [stderr] --> src/main.rs:177:4 [INFO] [stderr] | [INFO] [stderr] 177 | fn canon_to_huff(codes: Vec<(char, usize)>) -> HuffMap { HuffMap::new() } [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `huffman-coding-rs` (bin "huffman-coding-rs" test) generated 6 warnings [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.00s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/huffman_coding_rs-c808b1242a31544a) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test tests::test_all_words ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 11.78s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "fa1a2d7982f7e3c9a22b8f0c77f611befb7150688a1b5a2bf601ffe0cc8dcd74", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fa1a2d7982f7e3c9a22b8f0c77f611befb7150688a1b5a2bf601ffe0cc8dcd74", kill_on_drop: false }` [INFO] [stdout] fa1a2d7982f7e3c9a22b8f0c77f611befb7150688a1b5a2bf601ffe0cc8dcd74