[INFO] cloning repository https://github.com/RedDocMD/huffman [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RedDocMD/huffman" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRedDocMD%2Fhuffman", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRedDocMD%2Fhuffman'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ac3197a415e59cd288a61746c778d75cff24cb00 [INFO] testing RedDocMD/huffman against beta-2022-02-22 for beta-1.60-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRedDocMD%2Fhuffman" "/workspace/builds/worker-10/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/RedDocMD/huffman on toolchain beta-2022-02-22 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/RedDocMD/huffman [INFO] finished tweaking git repo https://github.com/RedDocMD/huffman [INFO] tweaked toml for git repo https://github.com/RedDocMD/huffman written to /workspace/builds/worker-10/source/Cargo.toml [INFO] crate git repo https://github.com/RedDocMD/huffman already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0fa93b16ba38b1900a24686c6e4bf62664454cb5449d8087925dae9dbabc518b [INFO] running `Command { std: "docker" "start" "-a" "0fa93b16ba38b1900a24686c6e4bf62664454cb5449d8087925dae9dbabc518b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0fa93b16ba38b1900a24686c6e4bf62664454cb5449d8087925dae9dbabc518b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0fa93b16ba38b1900a24686c6e4bf62664454cb5449d8087925dae9dbabc518b", kill_on_drop: false }` [INFO] [stdout] 0fa93b16ba38b1900a24686c6e4bf62664454cb5449d8087925dae9dbabc518b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e9280378f60229e89cc1341123381a24bd0f2cbebe9f34fe06e154d738b5e1fe [INFO] running `Command { std: "docker" "start" "-a" "e9280378f60229e89cc1341123381a24bd0f2cbebe9f34fe06e154d738b5e1fe", kill_on_drop: false }` [INFO] [stderr] Compiling huffman v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field is never read: `tree` [INFO] [stdout] --> src/lib.rs:166:5 [INFO] [stdout] | [INFO] [stdout] 166 | tree: HuffmanCodeTree, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `HuffmanCode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/lib.rs:164:10 [INFO] [stdout] | [INFO] [stdout] 164 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.66s [INFO] running `Command { std: "docker" "inspect" "e9280378f60229e89cc1341123381a24bd0f2cbebe9f34fe06e154d738b5e1fe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e9280378f60229e89cc1341123381a24bd0f2cbebe9f34fe06e154d738b5e1fe", kill_on_drop: false }` [INFO] [stdout] e9280378f60229e89cc1341123381a24bd0f2cbebe9f34fe06e154d738b5e1fe [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 700946ce783e80daaa724fdc619ef2efec360ece2b65b71826ae775b529ea718 [INFO] running `Command { std: "docker" "start" "-a" "700946ce783e80daaa724fdc619ef2efec360ece2b65b71826ae775b529ea718", kill_on_drop: false }` [INFO] [stderr] Compiling huffman v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field is never read: `tree` [INFO] [stdout] --> src/lib.rs:166:5 [INFO] [stdout] | [INFO] [stdout] 166 | tree: HuffmanCodeTree, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `HuffmanCode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/lib.rs:164:10 [INFO] [stdout] | [INFO] [stdout] 164 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `tree` [INFO] [stdout] --> src/lib.rs:166:5 [INFO] [stdout] | [INFO] [stdout] 166 | tree: HuffmanCodeTree, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `HuffmanCode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/lib.rs:164:10 [INFO] [stdout] | [INFO] [stdout] 164 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.01s [INFO] running `Command { std: "docker" "inspect" "700946ce783e80daaa724fdc619ef2efec360ece2b65b71826ae775b529ea718", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "700946ce783e80daaa724fdc619ef2efec360ece2b65b71826ae775b529ea718", kill_on_drop: false }` [INFO] [stdout] 700946ce783e80daaa724fdc619ef2efec360ece2b65b71826ae775b529ea718 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 869cef31ad1a86a8c8cd939af15bfdd07a56315e4719725a04ab496d4437c305 [INFO] running `Command { std: "docker" "start" "-a" "869cef31ad1a86a8c8cd939af15bfdd07a56315e4719725a04ab496d4437c305", kill_on_drop: false }` [INFO] [stderr] warning: field is never read: `tree` [INFO] [stderr] --> src/lib.rs:166:5 [INFO] [stderr] | [INFO] [stderr] 166 | tree: HuffmanCodeTree, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] note: `HuffmanCode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> src/lib.rs:164:10 [INFO] [stderr] | [INFO] [stderr] 164 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: `huffman` (lib) generated 1 warning [INFO] [stderr] warning: `huffman` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.00s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/huffman-bc8136bc7d6ddd91) [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/encoder_rig-35918bd87ef5ae7b) [INFO] [stdout] running 4 tests [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/huffman-b170f4e2e4261f41) [INFO] [stdout] test test::test_generate_huffman_tree ... ok [INFO] [stderr] Doc-tests huffman [INFO] [stdout] test test::test_huffman_code ... ok [INFO] [stdout] test test::test_update_frequencies ... ok [INFO] [stdout] test test::test_huffman_encoding ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s [INFO] [stdout] [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] [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] [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" "869cef31ad1a86a8c8cd939af15bfdd07a56315e4719725a04ab496d4437c305", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "869cef31ad1a86a8c8cd939af15bfdd07a56315e4719725a04ab496d4437c305", kill_on_drop: false }` [INFO] [stdout] 869cef31ad1a86a8c8cd939af15bfdd07a56315e4719725a04ab496d4437c305