[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 1.59.0 for beta-1.60-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbasile-henry%2Fhuffman" "/workspace/builds/worker-16/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-16/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/basile-henry/huffman on toolchain 1.59.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-16/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" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e26981c57a26c23a428b0a71a337116d131f1f6662c7fc836db39a630872b9e0 [INFO] running `Command { std: "docker" "start" "-a" "e26981c57a26c23a428b0a71a337116d131f1f6662c7fc836db39a630872b9e0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e26981c57a26c23a428b0a71a337116d131f1f6662c7fc836db39a630872b9e0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e26981c57a26c23a428b0a71a337116d131f1f6662c7fc836db39a630872b9e0", kill_on_drop: false }` [INFO] [stdout] e26981c57a26c23a428b0a71a337116d131f1f6662c7fc836db39a630872b9e0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3c392741480fd261208e09f3738299cb4615b3d0b39e995dbbb7fc127ee3073e [INFO] running `Command { std: "docker" "start" "-a" "3c392741480fd261208e09f3738299cb4615b3d0b39e995dbbb7fc127ee3073e", 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: unnecessary parentheses around type [INFO] [stdout] --> src/huffman.rs:58:20 [INFO] [stdout] | [INFO] [stdout] 58 | ) -> DecodedSymbol<(S)> { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 58 - ) -> DecodedSymbol<(S)> { [INFO] [stdout] 58 + ) -> DecodedSymbol { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [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] | ^^^^^^^^^^^^^^^^^^^^^ [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 [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 57 - bits: &mut Iterator, [INFO] [stdout] 57 + bits: &mut dyn Iterator, [INFO] [stdout] | [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 1.24s [INFO] running `Command { std: "docker" "inspect" "3c392741480fd261208e09f3738299cb4615b3d0b39e995dbbb7fc127ee3073e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3c392741480fd261208e09f3738299cb4615b3d0b39e995dbbb7fc127ee3073e", kill_on_drop: false }` [INFO] [stdout] 3c392741480fd261208e09f3738299cb4615b3d0b39e995dbbb7fc127ee3073e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1ee58964dfd4477d3abe2dec8623e951f02abcca452192aa0d7625c53b44eda4 [INFO] running `Command { std: "docker" "start" "-a" "1ee58964dfd4477d3abe2dec8623e951f02abcca452192aa0d7625c53b44eda4", kill_on_drop: false }` [INFO] [stderr] Compiling huffman v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/huffman.rs:58:20 [INFO] [stdout] | [INFO] [stdout] 58 | ) -> DecodedSymbol<(S)> { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 58 - ) -> DecodedSymbol<(S)> { [INFO] [stdout] 58 + ) -> DecodedSymbol { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [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] | ^^^^^^^^^^^^^^^^^^^^^ [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 [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 57 - bits: &mut Iterator, [INFO] [stdout] 57 + bits: &mut dyn Iterator, [INFO] [stdout] | [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 0.46s [INFO] running `Command { std: "docker" "inspect" "1ee58964dfd4477d3abe2dec8623e951f02abcca452192aa0d7625c53b44eda4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1ee58964dfd4477d3abe2dec8623e951f02abcca452192aa0d7625c53b44eda4", kill_on_drop: false }` [INFO] [stdout] 1ee58964dfd4477d3abe2dec8623e951f02abcca452192aa0d7625c53b44eda4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "+1.59.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] e43a4ca6b9eb5b1a09f15f2d9a8f1a20587dadc65aa4c1b6c4106c135361bd08 [INFO] running `Command { std: "docker" "start" "-a" "e43a4ca6b9eb5b1a09f15f2d9a8f1a20587dadc65aa4c1b6c4106c135361bd08", kill_on_drop: false }` [INFO] [stderr] warning: unnecessary parentheses around type [INFO] [stderr] --> src/huffman.rs:58:20 [INFO] [stderr] | [INFO] [stderr] 58 | ) -> DecodedSymbol<(S)> { [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 58 - ) -> DecodedSymbol<(S)> { [INFO] [stderr] 58 + ) -> DecodedSymbol { [INFO] [stderr] | [INFO] [stderr] [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] | ^^^^^^^^^^^^^^^^^^^^^ [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 [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 57 - bits: &mut Iterator, [INFO] [stderr] 57 + bits: &mut dyn Iterator, [INFO] [stderr] | [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 0.00s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/huffman-5887c1cb8dc811ee) [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" "e43a4ca6b9eb5b1a09f15f2d9a8f1a20587dadc65aa4c1b6c4106c135361bd08", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e43a4ca6b9eb5b1a09f15f2d9a8f1a20587dadc65aa4c1b6c4106c135361bd08", kill_on_drop: false }` [INFO] [stdout] e43a4ca6b9eb5b1a09f15f2d9a8f1a20587dadc65aa4c1b6c4106c135361bd08