[INFO] fetching crate fountain_codes 0.2.1...
[INFO] testing fountain_codes-0.2.1 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate fountain_codes 0.2.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate fountain_codes 0.2.1 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 crates.io crate fountain_codes 0.2.1
[INFO] finished tweaking crates.io crate fountain_codes 0.2.1
[INFO] tweaked toml for crates.io crate fountain_codes 0.2.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] dc9b2d2ada8b2d70b646a536c3ec1ee49550edfeb4e767f3e91b6bc046eb24bd
[INFO] running `Command { std: "docker" "start" "-a" "dc9b2d2ada8b2d70b646a536c3ec1ee49550edfeb4e767f3e91b6bc046eb24bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc9b2d2ada8b2d70b646a536c3ec1ee49550edfeb4e767f3e91b6bc046eb24bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc9b2d2ada8b2d70b646a536c3ec1ee49550edfeb4e767f3e91b6bc046eb24bd", kill_on_drop: false }`
[INFO] [stdout] dc9b2d2ada8b2d70b646a536c3ec1ee49550edfeb4e767f3e91b6bc046eb24bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3644a42eb34c146fc5c50b998e9fc0706238942612e1a11840a5f6d76fcefea8
[INFO] running `Command { std: "docker" "start" "-a" "3644a42eb34c146fc5c50b998e9fc0706238942612e1a11840a5f6d76fcefea8", kill_on_drop: false }`
[INFO] [stderr]    Compiling fountain_codes v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/lt.rs:35:36
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let extra_block = cmp::min((data_bytes % BLOCK_BYTES as u64), 1);
[INFO] [stdout]    |                                    ^                               ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 35 -         let extra_block = cmp::min((data_bytes % BLOCK_BYTES as u64), 1);
[INFO] [stdout] 35 +         let extra_block = cmp::min(data_bytes % BLOCK_BYTES as u64, 1);
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/lt.rs:116:36
[INFO] [stdout]     |
[INFO] [stdout] 116 |         let extra_block = cmp::min((data_bytes % BLOCK_BYTES as u64), 1);
[INFO] [stdout]     |                                    ^                               ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 116 -         let extra_block = cmp::min((data_bytes % BLOCK_BYTES as u64), 1);
[INFO] [stdout] 116 +         let extra_block = cmp::min(data_bytes % BLOCK_BYTES as u64, 1);
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:31:39
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl<P: Packet> PartialEncoder<P> for Encoder<P> {
[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 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 31 - impl<P: Packet> PartialEncoder<P> for Encoder<P> {
[INFO] [stdout] 31 + impl<P: Packet> PartialEncoder<P> for dyn Encoder<P> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/distributions.rs:16:35
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new(density_function: &ProbabilityDensityFunction, limit: u32) -> io::Result<Distribution> {
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 16 -     pub fn new(density_function: &ProbabilityDensityFunction, limit: u32) -> io::Result<Distribution> {
[INFO] [stdout] 16 +     pub fn new(density_function: &dyn ProbabilityDensityFunction, limit: u32) -> io::Result<Distribution> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.05s
[INFO] running `Command { std: "docker" "inspect" "3644a42eb34c146fc5c50b998e9fc0706238942612e1a11840a5f6d76fcefea8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3644a42eb34c146fc5c50b998e9fc0706238942612e1a11840a5f6d76fcefea8", kill_on_drop: false }`
[INFO] [stdout] 3644a42eb34c146fc5c50b998e9fc0706238942612e1a11840a5f6d76fcefea8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bb543cf0c12ad4436d3aaff68b6853a0daade0190f620c651e889fda3503cb66
[INFO] running `Command { std: "docker" "start" "-a" "bb543cf0c12ad4436d3aaff68b6853a0daade0190f620c651e889fda3503cb66", kill_on_drop: false }`
[INFO] [stderr]    Compiling fountain_codes v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/lt.rs:35:36
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let extra_block = cmp::min((data_bytes % BLOCK_BYTES as u64), 1);
[INFO] [stdout]    |                                    ^                               ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 35 -         let extra_block = cmp::min((data_bytes % BLOCK_BYTES as u64), 1);
[INFO] [stdout] 35 +         let extra_block = cmp::min(data_bytes % BLOCK_BYTES as u64, 1);
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/lt.rs:116:36
[INFO] [stdout]     |
[INFO] [stdout] 116 |         let extra_block = cmp::min((data_bytes % BLOCK_BYTES as u64), 1);
[INFO] [stdout]     |                                    ^                               ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 116 -         let extra_block = cmp::min((data_bytes % BLOCK_BYTES as u64), 1);
[INFO] [stdout] 116 +         let extra_block = cmp::min(data_bytes % BLOCK_BYTES as u64, 1);
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:31:39
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl<P: Packet> PartialEncoder<P> for Encoder<P> {
[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 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 31 - impl<P: Packet> PartialEncoder<P> for Encoder<P> {
[INFO] [stdout] 31 + impl<P: Packet> PartialEncoder<P> for dyn Encoder<P> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/distributions.rs:16:35
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new(density_function: &ProbabilityDensityFunction, limit: u32) -> io::Result<Distribution> {
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 16 -     pub fn new(density_function: &ProbabilityDensityFunction, limit: u32) -> io::Result<Distribution> {
[INFO] [stdout] 16 +     pub fn new(density_function: &dyn ProbabilityDensityFunction, limit: u32) -> io::Result<Distribution> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/lt.rs:35:36
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let extra_block = cmp::min((data_bytes % BLOCK_BYTES as u64), 1);
[INFO] [stdout]    |                                    ^                               ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 35 -         let extra_block = cmp::min((data_bytes % BLOCK_BYTES as u64), 1);
[INFO] [stdout] 35 +         let extra_block = cmp::min(data_bytes % BLOCK_BYTES as u64, 1);
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/lt.rs:116:36
[INFO] [stdout]     |
[INFO] [stdout] 116 |         let extra_block = cmp::min((data_bytes % BLOCK_BYTES as u64), 1);
[INFO] [stdout]     |                                    ^                               ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 116 -         let extra_block = cmp::min((data_bytes % BLOCK_BYTES as u64), 1);
[INFO] [stdout] 116 +         let extra_block = cmp::min(data_bytes % BLOCK_BYTES as u64, 1);
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:31:39
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl<P: Packet> PartialEncoder<P> for Encoder<P> {
[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 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 31 - impl<P: Packet> PartialEncoder<P> for Encoder<P> {
[INFO] [stdout] 31 + impl<P: Packet> PartialEncoder<P> for dyn Encoder<P> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/distributions.rs:16:35
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new(density_function: &ProbabilityDensityFunction, limit: u32) -> io::Result<Distribution> {
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 16 -     pub fn new(density_function: &ProbabilityDensityFunction, limit: u32) -> io::Result<Distribution> {
[INFO] [stdout] 16 +     pub fn new(density_function: &dyn ProbabilityDensityFunction, limit: u32) -> io::Result<Distribution> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.71s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/fountain_codes-9117dcf35ff819d0)
[INFO] [stderr]   Executable tests/lt_coding_test.rs (/opt/rustwide/target/debug/deps/lt_coding_test-5271265bc21dce45)
[INFO] running `Command { std: "docker" "inspect" "bb543cf0c12ad4436d3aaff68b6853a0daade0190f620c651e889fda3503cb66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb543cf0c12ad4436d3aaff68b6853a0daade0190f620c651e889fda3503cb66", kill_on_drop: false }`
[INFO] [stdout] bb543cf0c12ad4436d3aaff68b6853a0daade0190f620c651e889fda3503cb66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6ffca3f20b00f5351943252cdb81484ece766f9936641d55d3cf18ac4e5aad6c
[INFO] running `Command { std: "docker" "start" "-a" "6ffca3f20b00f5351943252cdb81484ece766f9936641d55d3cf18ac4e5aad6c", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/lt.rs:35:36
[INFO] [stderr]    |
[INFO] [stderr] 35 |         let extra_block = cmp::min((data_bytes % BLOCK_BYTES as u64), 1);
[INFO] [stderr]    |                                    ^                               ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 35 -         let extra_block = cmp::min((data_bytes % BLOCK_BYTES as u64), 1);
[INFO] [stderr] 35 +         let extra_block = cmp::min(data_bytes % BLOCK_BYTES as u64, 1);
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/lt.rs:116:36
[INFO] [stderr]     |
[INFO] [stderr] 116 |         let extra_block = cmp::min((data_bytes % BLOCK_BYTES as u64), 1);
[INFO] [stderr]     |                                    ^                               ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 116 -         let extra_block = cmp::min((data_bytes % BLOCK_BYTES as u64), 1);
[INFO] [stderr] 116 +         let extra_block = cmp::min(data_bytes % BLOCK_BYTES as u64, 1);
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:31:39
[INFO] [stderr]    |
[INFO] [stderr] 31 | impl<P: Packet> PartialEncoder<P> for Encoder<P> {
[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 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 31 - impl<P: Packet> PartialEncoder<P> for Encoder<P> {
[INFO] [stderr] 31 + impl<P: Packet> PartialEncoder<P> for dyn Encoder<P> {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/distributions.rs:16:35
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn new(density_function: &ProbabilityDensityFunction, limit: u32) -> io::Result<Distribution> {
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 16 -     pub fn new(density_function: &ProbabilityDensityFunction, limit: u32) -> io::Result<Distribution> {
[INFO] [stderr] 16 +     pub fn new(density_function: &dyn ProbabilityDensityFunction, limit: u32) -> io::Result<Distribution> {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: `fountain_codes` (lib) generated 4 warnings
[INFO] [stderr] warning: `fountain_codes` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/fountain_codes-9117dcf35ff819d0)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/lt_coding_test.rs (/opt/rustwide/target/debug/deps/lt_coding_test-5271265bc21dce45)
[INFO] [stdout] running 2 tests
[INFO] [stdout] test lt::tests::block_equals ... ok
[INFO] [stdout] test lt::tests::packet_round_trips ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_lt_coding_small ... ok
[INFO] [stdout] test test_lt_coding_medium has been running for over 60 seconds
[INFO] [stdout] test test_lt_coding_medium ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 178.55s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fountain_codes
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lt.rs:35:36
[INFO] [stderr]    |
[INFO] [stderr] 35 |         let extra_block = cmp::min((data_bytes % BLOCK_BYTES as u64), 1);
[INFO] [stderr]    |                                    ^                               ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 35 -         let extra_block = cmp::min((data_bytes % BLOCK_BYTES as u64), 1);
[INFO] [stderr] 35 +         let extra_block = cmp::min(data_bytes % BLOCK_BYTES as u64, 1);
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> /opt/rustwide/workdir/src/lt.rs:116:36
[INFO] [stderr]     |
[INFO] [stderr] 116 |         let extra_block = cmp::min((data_bytes % BLOCK_BYTES as u64), 1);
[INFO] [stderr]     |                                    ^                               ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 116 -         let extra_block = cmp::min((data_bytes % BLOCK_BYTES as u64), 1);
[INFO] [stderr] 116 +         let extra_block = cmp::min(data_bytes % BLOCK_BYTES as u64, 1);
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[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" "6ffca3f20b00f5351943252cdb81484ece766f9936641d55d3cf18ac4e5aad6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ffca3f20b00f5351943252cdb81484ece766f9936641d55d3cf18ac4e5aad6c", kill_on_drop: false }`
[INFO] [stdout] 6ffca3f20b00f5351943252cdb81484ece766f9936641d55d3cf18ac4e5aad6c