[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-2022-04-10 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRedDocMD%2Fhuffman" "/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/RedDocMD/huffman 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/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-4/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-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 82909ffc71feb0635de261abe1103a12eee834ad6d2cbed1630b9b076b694760 [INFO] running `Command { std: "docker" "start" "-a" "82909ffc71feb0635de261abe1103a12eee834ad6d2cbed1630b9b076b694760", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "82909ffc71feb0635de261abe1103a12eee834ad6d2cbed1630b9b076b694760", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "82909ffc71feb0635de261abe1103a12eee834ad6d2cbed1630b9b076b694760", kill_on_drop: false }` [INFO] [stdout] 82909ffc71feb0635de261abe1103a12eee834ad6d2cbed1630b9b076b694760 [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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7cd82b553e8aab843919c1186d7fdb8ca716387a970bcc523fee6934a97081c6 [INFO] running `Command { std: "docker" "start" "-a" "7cd82b553e8aab843919c1186d7fdb8ca716387a970bcc523fee6934a97081c6", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [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 2.13s [INFO] running `Command { std: "docker" "inspect" "7cd82b553e8aab843919c1186d7fdb8ca716387a970bcc523fee6934a97081c6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7cd82b553e8aab843919c1186d7fdb8ca716387a970bcc523fee6934a97081c6", kill_on_drop: false }` [INFO] [stdout] 7cd82b553e8aab843919c1186d7fdb8ca716387a970bcc523fee6934a97081c6 [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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b0de77a1bca82325256dc9b9969d588dadf9d42eb1bf618cd143a78e84529ffb [INFO] running `Command { std: "docker" "start" "-a" "b0de77a1bca82325256dc9b9969d588dadf9d42eb1bf618cd143a78e84529ffb", kill_on_drop: false }` [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] [stderr] Compiling huffman v0.1.0 (/opt/rustwide/workdir) [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 0.74s [INFO] [stderr] Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/huffman-bc8136bc7d6ddd91) [INFO] [stderr] Executable unittests src/bin/encoder_rig.rs (/opt/rustwide/target/debug/deps/encoder_rig-35918bd87ef5ae7b) [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/huffman-b170f4e2e4261f41) [INFO] running `Command { std: "docker" "inspect" "b0de77a1bca82325256dc9b9969d588dadf9d42eb1bf618cd143a78e84529ffb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b0de77a1bca82325256dc9b9969d588dadf9d42eb1bf618cd143a78e84529ffb", kill_on_drop: false }` [INFO] [stdout] b0de77a1bca82325256dc9b9969d588dadf9d42eb1bf618cd143a78e84529ffb [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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] dbfcb647b81f9b8a1ae8278be559f54df094799e13e73c27731698463cb1f59d [INFO] running `Command { std: "docker" "start" "-a" "dbfcb647b81f9b8a1ae8278be559f54df094799e13e73c27731698463cb1f59d", 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 src/lib.rs (/opt/rustwide/target/debug/deps/huffman-bc8136bc7d6ddd91) [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test test::test_generate_huffman_tree ... ok [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 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/encoder_rig.rs (/opt/rustwide/target/debug/deps/encoder_rig-35918bd87ef5ae7b) [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] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/huffman-b170f4e2e4261f41) [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] [stderr] Doc-tests huffman [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" "dbfcb647b81f9b8a1ae8278be559f54df094799e13e73c27731698463cb1f59d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dbfcb647b81f9b8a1ae8278be559f54df094799e13e73c27731698463cb1f59d", kill_on_drop: false }` [INFO] [stdout] dbfcb647b81f9b8a1ae8278be559f54df094799e13e73c27731698463cb1f59d