[INFO] cloning repository https://github.com/basile-henry/huffman [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/basile-henry/huffman" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbasile-henry%2Fhuffman", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbasile-henry%2Fhuffman'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1d27e547e8aa99f8012e0483996e8f28c88f2379 [INFO] testing basile-henry/huffman against 1.55.0 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbasile-henry%2Fhuffman" "/workspace/builds/worker-6/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/basile-henry/huffman on toolchain 1.55.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/basile-henry/huffman [INFO] finished tweaking git repo https://github.com/basile-henry/huffman [INFO] tweaked toml for git repo https://github.com/basile-henry/huffman written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/basile-henry/huffman already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6ab469c232f26704db593e3a5410a452e444cd3cbcbf242f556be3572845a4cc [INFO] running `Command { std: "docker" "start" "-a" "6ab469c232f26704db593e3a5410a452e444cd3cbcbf242f556be3572845a4cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6ab469c232f26704db593e3a5410a452e444cd3cbcbf242f556be3572845a4cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6ab469c232f26704db593e3a5410a452e444cd3cbcbf242f556be3572845a4cc", kill_on_drop: false }` [INFO] [stdout] 6ab469c232f26704db593e3a5410a452e444cd3cbcbf242f556be3572845a4cc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] fb954fe8504f4b378ac9bf1bee53f439e61dcae9118bce3ad1787a1142c4bd18 [INFO] running `Command { std: "docker" "start" "-a" "fb954fe8504f4b378ac9bf1bee53f439e61dcae9118bce3ad1787a1142c4bd18", kill_on_drop: false }` [INFO] [stderr] Compiling bit-vec v0.5.0 [INFO] [stderr] Compiling huffman v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/huffman.rs:57:16 [INFO] [stdout] | [INFO] [stdout] 57 | bits: &mut Iterator, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/huffman.rs:58:20 [INFO] [stdout] | [INFO] [stdout] 58 | ) -> DecodedSymbol<(S)> { [INFO] [stdout] | ^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `decoded` [INFO] [stdout] --> src/main.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let decoded = huffman::decode(&key, &encoded); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_decoded` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.22s [INFO] running `Command { std: "docker" "inspect" "fb954fe8504f4b378ac9bf1bee53f439e61dcae9118bce3ad1787a1142c4bd18", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fb954fe8504f4b378ac9bf1bee53f439e61dcae9118bce3ad1787a1142c4bd18", kill_on_drop: false }` [INFO] [stdout] fb954fe8504f4b378ac9bf1bee53f439e61dcae9118bce3ad1787a1142c4bd18 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 912ec2231fe65db63cd92a735e25fa9b1b4742c0a80a67b2685308dcb2909223 [INFO] running `Command { std: "docker" "start" "-a" "912ec2231fe65db63cd92a735e25fa9b1b4742c0a80a67b2685308dcb2909223", 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/huffman.rs:57:16 [INFO] [stdout] | [INFO] [stdout] 57 | bits: &mut Iterator, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/huffman.rs:58:20 [INFO] [stdout] | [INFO] [stdout] 58 | ) -> DecodedSymbol<(S)> { [INFO] [stdout] | ^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `decoded` [INFO] [stdout] --> src/main.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let decoded = huffman::decode(&key, &encoded); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_decoded` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.65s [INFO] running `Command { std: "docker" "inspect" "912ec2231fe65db63cd92a735e25fa9b1b4742c0a80a67b2685308dcb2909223", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "912ec2231fe65db63cd92a735e25fa9b1b4742c0a80a67b2685308dcb2909223", kill_on_drop: false }` [INFO] [stdout] 912ec2231fe65db63cd92a735e25fa9b1b4742c0a80a67b2685308dcb2909223 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 59c783d1712f56ed8992487ef6fe5dbb17900cf6ba8fad39c763187d8f9ca193 [INFO] running `Command { std: "docker" "start" "-a" "59c783d1712f56ed8992487ef6fe5dbb17900cf6ba8fad39c763187d8f9ca193", kill_on_drop: false }` [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/huffman.rs:57:16 [INFO] [stderr] | [INFO] [stderr] 57 | bits: &mut Iterator, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see issue #80165 [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around type [INFO] [stderr] --> src/huffman.rs:58:20 [INFO] [stderr] | [INFO] [stderr] 58 | ) -> DecodedSymbol<(S)> { [INFO] [stderr] | ^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `decoded` [INFO] [stderr] --> src/main.rs:21:9 [INFO] [stderr] | [INFO] [stderr] 21 | let decoded = huffman::decode(&key, &encoded); [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_decoded` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `huffman` (bin "huffman" test) generated 3 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/huffman-880bd88f976f0cba) [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" "59c783d1712f56ed8992487ef6fe5dbb17900cf6ba8fad39c763187d8f9ca193", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "59c783d1712f56ed8992487ef6fe5dbb17900cf6ba8fad39c763187d8f9ca193", kill_on_drop: false }` [INFO] [stdout] 59c783d1712f56ed8992487ef6fe5dbb17900cf6ba8fad39c763187d8f9ca193