[INFO] fetching crate nt-leb128 0.3.1...
[INFO] testing nt-leb128-0.3.1 against 1.75.0 for beta-1.76-1
[INFO] extracting crate nt-leb128 0.3.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate nt-leb128 0.3.1 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nt-leb128 0.3.1
[INFO] finished tweaking crates.io crate nt-leb128 0.3.1
[INFO] tweaked toml for crates.io crate nt-leb128 0.3.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate nt-leb128 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bytes v0.5.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 485f565478a1a764f01429d80d473445dd827f72784a58b5413303264f13a31c
[INFO] running `Command { std: "docker" "start" "-a" "485f565478a1a764f01429d80d473445dd827f72784a58b5413303264f13a31c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "485f565478a1a764f01429d80d473445dd827f72784a58b5413303264f13a31c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "485f565478a1a764f01429d80d473445dd827f72784a58b5413303264f13a31c", kill_on_drop: false }`
[INFO] [stdout] 485f565478a1a764f01429d80d473445dd827f72784a58b5413303264f13a31c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b16733c4f6aa4da926a340d220b8f4b512b16ea5041b93e9baedba24e9eb5c4b
[INFO] running `Command { std: "docker" "start" "-a" "b16733c4f6aa4da926a340d220b8f4b512b16ea5041b93e9baedba24e9eb5c4b", kill_on_drop: false }`
[INFO] [stderr]    Compiling bytes v0.5.2
[INFO] [stderr]    Compiling nt-leb128 v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `BytesMut`
[INFO] [stdout]  --> src/write.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | use bytes::{BytesMut, BufMut};
[INFO] [stdout]   |             ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/read.rs:37:37
[INFO] [stdout]    |
[INFO] [stdout] 37 |                ::std::error::Error::description(self))
[INFO] [stdout]    |                                     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/read.rs:49:32
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn cause(&self) -> Option<&::std::error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn cause(&self) -> Option<&dyn (::std::error::Error)> {
[INFO] [stdout]    |                                +++++                   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/read.rs:44:40
[INFO] [stdout]    |
[INFO] [stdout] 44 |             Error::IoError(ref e) => e.description(),
[INFO] [stdout]    |                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/write.rs:56:17
[INFO] [stdout]    |
[INFO] [stdout] 56 |             let buf = [byte];
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `leb128::read::LEB128Read`
[INFO] [stdout]  --> src/bin/leb128-repl.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use leb128::read::LEB128Read;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "b16733c4f6aa4da926a340d220b8f4b512b16ea5041b93e9baedba24e9eb5c4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b16733c4f6aa4da926a340d220b8f4b512b16ea5041b93e9baedba24e9eb5c4b", kill_on_drop: false }`
[INFO] [stdout] b16733c4f6aa4da926a340d220b8f4b512b16ea5041b93e9baedba24e9eb5c4b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 877982e91b0cbaf5bb5b31afbc675ee09e86e6e4a5f183adc570f56345de913b
[INFO] running `Command { std: "docker" "start" "-a" "877982e91b0cbaf5bb5b31afbc675ee09e86e6e4a5f183adc570f56345de913b", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `BytesMut`
[INFO] [stdout]  --> src/write.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | use bytes::{BytesMut, BufMut};
[INFO] [stdout]   |             ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/read.rs:37:37
[INFO] [stdout]    |
[INFO] [stdout] 37 |                ::std::error::Error::description(self))
[INFO] [stdout]    |                                     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/read.rs:49:32
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn cause(&self) -> Option<&::std::error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn cause(&self) -> Option<&dyn (::std::error::Error)> {
[INFO] [stdout]    |                                +++++                   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling nt-leb128 v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/read.rs:44:40
[INFO] [stdout]    |
[INFO] [stdout] 44 |             Error::IoError(ref e) => e.description(),
[INFO] [stdout]    |                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/write.rs:56:17
[INFO] [stdout]    |
[INFO] [stdout] 56 |             let buf = [byte];
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `leb128::read::LEB128Read`
[INFO] [stdout]  --> src/bin/leb128-repl.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use leb128::read::LEB128Read;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BytesMut`
[INFO] [stdout]  --> src/write.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | use bytes::{BytesMut, BufMut};
[INFO] [stdout]   |             ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufMut`, `Buf`
[INFO] [stdout]  --> src/tests_bytes.rs:4:30
[INFO] [stdout]   |
[INFO] [stdout] 4 | use bytes::{BytesMut, Bytes, BufMut, Buf};
[INFO] [stdout]   |                              ^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/read.rs:37:37
[INFO] [stdout]    |
[INFO] [stdout] 37 |                ::std::error::Error::description(self))
[INFO] [stdout]    |                                     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/read.rs:49:32
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn cause(&self) -> Option<&::std::error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn cause(&self) -> Option<&dyn (::std::error::Error)> {
[INFO] [stdout]    |                                +++++                   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/read.rs:44:40
[INFO] [stdout]    |
[INFO] [stdout] 44 |             Error::IoError(ref e) => e.description(),
[INFO] [stdout]    |                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/write.rs:56:17
[INFO] [stdout]    |
[INFO] [stdout] 56 |             let buf = [byte];
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "877982e91b0cbaf5bb5b31afbc675ee09e86e6e4a5f183adc570f56345de913b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "877982e91b0cbaf5bb5b31afbc675ee09e86e6e4a5f183adc570f56345de913b", kill_on_drop: false }`
[INFO] [stdout] 877982e91b0cbaf5bb5b31afbc675ee09e86e6e4a5f183adc570f56345de913b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 56e42a195aff6c070e339063d9a73a8eab608e3726587f76d4d369710fd6bbb3
[INFO] running `Command { std: "docker" "start" "-a" "56e42a195aff6c070e339063d9a73a8eab608e3726587f76d4d369710fd6bbb3", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `BytesMut`
[INFO] [stderr]  --> src/write.rs:3:13
[INFO] [stderr]   |
[INFO] [stderr] 3 | use bytes::{BytesMut, BufMut};
[INFO] [stderr]   |             ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/read.rs:37:37
[INFO] [stderr]    |
[INFO] [stderr] 37 |                ::std::error::Error::description(self))
[INFO] [stderr]    |                                     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/read.rs:49:32
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn cause(&self) -> Option<&::std::error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn cause(&self) -> Option<&dyn (::std::error::Error)> {
[INFO] [stderr]    |                                +++++                   +
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/read.rs:44:40
[INFO] [stderr]    |
[INFO] [stderr] 44 |             Error::IoError(ref e) => e.description(),
[INFO] [stderr]    |                                        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buf`
[INFO] [stderr]   --> src/write.rs:56:17
[INFO] [stderr]    |
[INFO] [stderr] 56 |             let buf = [byte];
[INFO] [stderr]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `nt-leb128` (lib) generated 5 warnings (run `cargo fix --lib -p nt-leb128` to apply 3 suggestions)
[INFO] [stderr] warning: unused import: `leb128::read::LEB128Read`
[INFO] [stderr]  --> src/bin/leb128-repl.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use leb128::read::LEB128Read;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `nt-leb128` (bin "leb128-repl" test) generated 1 warning (run `cargo fix --bin "leb128-repl" --tests` to apply 1 suggestion)
[INFO] [stderr] warning: unused imports: `BufMut`, `Buf`
[INFO] [stderr]  --> src/tests_bytes.rs:4:30
[INFO] [stderr]   |
[INFO] [stderr] 4 | use bytes::{BytesMut, Bytes, BufMut, Buf};
[INFO] [stderr]   |                              ^^^^^^  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `nt-leb128` (lib test) generated 6 warnings (5 duplicates) (run `cargo fix --lib -p nt-leb128 --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/nt_leb128-3966f84b8b6f6dbc)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test tests_bytes::test_low_bits_of_byte ... ok
[INFO] [stdout] test tests_bytes::test_low_bits_of_u64 ... ok
[INFO] [stdout] test tests_bytes::test_read_multiple ... ok
[INFO] [stdout] test tests_bytes::test_read_signed ... ok
[INFO] [stdout] test tests_bytes::test_read_signed_63_bits ... ok
[INFO] [stdout] test tests_bytes::test_read_signed_not_enough_data ... ok
[INFO] [stdout] test tests_bytes::test_read_signed_overflow ... ok
[INFO] [stdout] test tests_bytes::test_read_unsigned ... ok
[INFO] [stdout] test tests_bytes::dogfood_unsigned ... ok
[INFO] [stdout] test tests_bytes::test_read_unsigned_not_enough_data ... ok
[INFO] [stdout] test tests_bytes::test_read_unsigned_overflow ... ok
[INFO] [stdout] test tests_bytes::dogfood_signed ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/leb128-repl.rs (/opt/rustwide/target/debug/deps/leb128_repl-e07c6b5d3a581ea1)
[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 nt-leb128
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 29) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 9) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 29) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `leb128`
[INFO] [stdout]  --> src/lib.rs:30:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use leb128::write::LEB128Write;
[INFO] [stdout]   |     ^^^^^^ use of undeclared crate or module `leb128`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `leb128`
[INFO] [stdout]  --> src/lib.rs:31:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use leb128::read::LEB128Read;
[INFO] [stdout]   |     ^^^^^^ use of undeclared crate or module `leb128`
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `write_unsigned` found for mutable reference `&mut [{integer}]` in the current scope
[INFO] [stdout]   --> src/lib.rs:37:14
[INFO] [stdout]    |
[INFO] [stdout] 10 |     writable.write_unsigned(98765).expect("Should write number");
[INFO] [stdout]    |              ^^^^^^^^^^^^^^ method not found in `&mut [{integer}]`
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read_signed` found for reference `&[{integer}]` in the current scope
[INFO] [stdout]   --> src/lib.rs:41:20
[INFO] [stdout]    |
[INFO] [stdout] 14 | let val = readable.read_signed().expect("Should read number");
[INFO] [stdout]    |                    ^^^^^^^^^^^ method not found in `&[{integer}]`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0599.
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 9) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `leb128`
[INFO] [stdout]  --> src/lib.rs:10:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use leb128::write::LEB128Write;
[INFO] [stdout]   |     ^^^^^^ use of undeclared crate or module `leb128`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `leb128`
[INFO] [stdout]  --> src/lib.rs:11:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use leb128::read::LEB128Read;
[INFO] [stdout]   |     ^^^^^^ use of undeclared crate or module `leb128`
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `write_signed` found for mutable reference `&mut [{integer}]` in the current scope
[INFO] [stdout]   --> src/lib.rs:18:14
[INFO] [stdout]    |
[INFO] [stdout] 11 |     writable.write_signed(-12345).expect("Should write number");
[INFO] [stdout]    |              ^^^^^^^^^^^^ method not found in `&mut [{integer}]`
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read_signed` found for reference `&[{integer}]` in the current scope
[INFO] [stdout]   --> src/lib.rs:23:20
[INFO] [stdout]    |
[INFO] [stdout] 16 | let val = readable.read_signed().expect("Should read number");
[INFO] [stdout]    |                    ^^^^^^^^^^^ method not found in `&[{integer}]`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0599.
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 29)
[INFO] [stdout]     src/lib.rs - (line 9)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "56e42a195aff6c070e339063d9a73a8eab608e3726587f76d4d369710fd6bbb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56e42a195aff6c070e339063d9a73a8eab608e3726587f76d4d369710fd6bbb3", kill_on_drop: false }`
[INFO] [stdout] 56e42a195aff6c070e339063d9a73a8eab608e3726587f76d4d369710fd6bbb3
[INFO] testing nt-leb128-0.3.1 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate nt-leb128 0.3.1 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate nt-leb128 0.3.1 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nt-leb128 0.3.1
[INFO] finished tweaking crates.io crate nt-leb128 0.3.1
[INFO] tweaked toml for crates.io crate nt-leb128 0.3.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate nt-leb128 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 83eb30fd93f16df90f92ee658aa2cf444b563676c7d486ce3c474442ffe91bb3
[INFO] running `Command { std: "docker" "start" "-a" "83eb30fd93f16df90f92ee658aa2cf444b563676c7d486ce3c474442ffe91bb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "83eb30fd93f16df90f92ee658aa2cf444b563676c7d486ce3c474442ffe91bb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83eb30fd93f16df90f92ee658aa2cf444b563676c7d486ce3c474442ffe91bb3", kill_on_drop: false }`
[INFO] [stdout] 83eb30fd93f16df90f92ee658aa2cf444b563676c7d486ce3c474442ffe91bb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a0edecb23a2cfe9b1963302adfcc256dd0946d123d8d9503be54df464c5fdaf
[INFO] running `Command { std: "docker" "start" "-a" "6a0edecb23a2cfe9b1963302adfcc256dd0946d123d8d9503be54df464c5fdaf", kill_on_drop: false }`
[INFO] [stderr]    Compiling bytes v0.5.2
[INFO] [stderr]    Compiling nt-leb128 v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `BytesMut`
[INFO] [stdout]  --> src/write.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | use bytes::{BytesMut, BufMut};
[INFO] [stdout]   |             ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/read.rs:37:37
[INFO] [stdout]    |
[INFO] [stdout] 37 |                ::std::error::Error::description(self))
[INFO] [stdout]    |                                     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/read.rs:49:32
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn cause(&self) -> Option<&::std::error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn cause(&self) -> Option<&dyn (::std::error::Error)> {
[INFO] [stdout]    |                                +++++                   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/read.rs:44:40
[INFO] [stdout]    |
[INFO] [stdout] 44 |             Error::IoError(ref e) => e.description(),
[INFO] [stdout]    |                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/write.rs:56:17
[INFO] [stdout]    |
[INFO] [stdout] 56 |             let buf = [byte];
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `leb128::read::LEB128Read`
[INFO] [stdout]  --> src/bin/leb128-repl.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use leb128::read::LEB128Read;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "6a0edecb23a2cfe9b1963302adfcc256dd0946d123d8d9503be54df464c5fdaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a0edecb23a2cfe9b1963302adfcc256dd0946d123d8d9503be54df464c5fdaf", kill_on_drop: false }`
[INFO] [stdout] 6a0edecb23a2cfe9b1963302adfcc256dd0946d123d8d9503be54df464c5fdaf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d9c7810768fe293db6ad8646d31b450c1a1079f96c4e62b5241ea1c4131fff4
[INFO] running `Command { std: "docker" "start" "-a" "2d9c7810768fe293db6ad8646d31b450c1a1079f96c4e62b5241ea1c4131fff4", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `BytesMut`
[INFO] [stdout]  --> src/write.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | use bytes::{BytesMut, BufMut};
[INFO] [stdout]   |             ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/read.rs:37:37
[INFO] [stdout]    |
[INFO] [stdout] 37 |                ::std::error::Error::description(self))
[INFO] [stdout]    |                                     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/read.rs:49:32
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn cause(&self) -> Option<&::std::error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn cause(&self) -> Option<&dyn (::std::error::Error)> {
[INFO] [stdout]    |                                +++++                   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/read.rs:44:40
[INFO] [stdout]    |
[INFO] [stdout] 44 |             Error::IoError(ref e) => e.description(),
[INFO] [stdout]    |                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/write.rs:56:17
[INFO] [stdout]    |
[INFO] [stdout] 56 |             let buf = [byte];
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling nt-leb128 v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `leb128::read::LEB128Read`
[INFO] [stdout]  --> src/bin/leb128-repl.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use leb128::read::LEB128Read;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BytesMut`
[INFO] [stdout]  --> src/write.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | use bytes::{BytesMut, BufMut};
[INFO] [stdout]   |             ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufMut`, `Buf`
[INFO] [stdout]  --> src/tests_bytes.rs:4:30
[INFO] [stdout]   |
[INFO] [stdout] 4 | use bytes::{BytesMut, Bytes, BufMut, Buf};
[INFO] [stdout]   |                              ^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/read.rs:37:37
[INFO] [stdout]    |
[INFO] [stdout] 37 |                ::std::error::Error::description(self))
[INFO] [stdout]    |                                     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/read.rs:49:32
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn cause(&self) -> Option<&::std::error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn cause(&self) -> Option<&dyn (::std::error::Error)> {
[INFO] [stdout]    |                                +++++                   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/read.rs:44:40
[INFO] [stdout]    |
[INFO] [stdout] 44 |             Error::IoError(ref e) => e.description(),
[INFO] [stdout]    |                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/write.rs:56:17
[INFO] [stdout]    |
[INFO] [stdout] 56 |             let buf = [byte];
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "2d9c7810768fe293db6ad8646d31b450c1a1079f96c4e62b5241ea1c4131fff4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d9c7810768fe293db6ad8646d31b450c1a1079f96c4e62b5241ea1c4131fff4", kill_on_drop: false }`
[INFO] [stdout] 2d9c7810768fe293db6ad8646d31b450c1a1079f96c4e62b5241ea1c4131fff4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d619111f839819e5ea357073935c7713ac601b1ffb49c634326cc56d97943b50
[INFO] running `Command { std: "docker" "start" "-a" "d619111f839819e5ea357073935c7713ac601b1ffb49c634326cc56d97943b50", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `BytesMut`
[INFO] [stderr]  --> src/write.rs:3:13
[INFO] [stderr]   |
[INFO] [stderr] 3 | use bytes::{BytesMut, BufMut};
[INFO] [stderr]   |             ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/read.rs:37:37
[INFO] [stderr]    |
[INFO] [stderr] 37 |                ::std::error::Error::description(self))
[INFO] [stderr]    |                                     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/read.rs:49:32
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn cause(&self) -> Option<&::std::error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn cause(&self) -> Option<&dyn (::std::error::Error)> {
[INFO] [stderr]    |                                +++++                   +
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/read.rs:44:40
[INFO] [stderr]    |
[INFO] [stderr] 44 |             Error::IoError(ref e) => e.description(),
[INFO] [stderr]    |                                        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buf`
[INFO] [stderr]   --> src/write.rs:56:17
[INFO] [stderr]    |
[INFO] [stderr] 56 |             let buf = [byte];
[INFO] [stderr]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `nt-leb128` (lib) generated 5 warnings (run `cargo fix --lib -p nt-leb128` to apply 3 suggestions)
[INFO] [stderr] warning: unused import: `leb128::read::LEB128Read`
[INFO] [stderr]  --> src/bin/leb128-repl.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use leb128::read::LEB128Read;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `nt-leb128` (bin "leb128-repl" test) generated 1 warning (run `cargo fix --bin "leb128-repl" --tests` to apply 1 suggestion)
[INFO] [stderr] warning: unused imports: `BufMut`, `Buf`
[INFO] [stderr]  --> src/tests_bytes.rs:4:30
[INFO] [stderr]   |
[INFO] [stderr] 4 | use bytes::{BytesMut, Bytes, BufMut, Buf};
[INFO] [stderr]   |                              ^^^^^^  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `nt-leb128` (lib test) generated 6 warnings (5 duplicates) (run `cargo fix --lib -p nt-leb128 --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/nt_leb128-4bc7669b1f5e4409)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test tests_bytes::test_read_multiple ... ok
[INFO] [stdout] test tests_bytes::test_low_bits_of_byte ... ok
[INFO] [stdout] test tests_bytes::test_read_signed ... ok
[INFO] [stdout] test tests_bytes::test_low_bits_of_u64 ... ok
[INFO] [stdout] test tests_bytes::test_read_signed_63_bits ... ok
[INFO] [stdout] test tests_bytes::test_read_signed_not_enough_data ... ok
[INFO] [stdout] test tests_bytes::test_read_signed_overflow ... ok
[INFO] [stdout] test tests_bytes::test_read_unsigned ... ok
[INFO] [stdout] test tests_bytes::test_read_unsigned_not_enough_data ... ok
[INFO] [stdout] test tests_bytes::test_read_unsigned_overflow ... ok
[INFO] [stdout] test tests_bytes::dogfood_unsigned ... ok
[INFO] [stdout] test tests_bytes::dogfood_signed ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/leb128-repl.rs (/opt/rustwide/target/debug/deps/leb128_repl-3b177fcebdd9aa8f)
[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 nt-leb128
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 9) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 29) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 9) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `leb128`
[INFO] [stdout]  --> src/lib.rs:10:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use leb128::write::LEB128Write;
[INFO] [stdout]   |     ^^^^^^ use of undeclared crate or module `leb128`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `leb128`
[INFO] [stdout]  --> src/lib.rs:11:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use leb128::read::LEB128Read;
[INFO] [stdout]   |     ^^^^^^ use of undeclared crate or module `leb128`
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `write_signed` found for mutable reference `&mut [{integer}]` in the current scope
[INFO] [stdout]   --> src/lib.rs:18:14
[INFO] [stdout]    |
[INFO] [stdout] 11 |     writable.write_signed(-12345).expect("Should write number");
[INFO] [stdout]    |              ^^^^^^^^^^^^ method not found in `&mut [{integer}]`
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read_signed` found for reference `&[{integer}]` in the current scope
[INFO] [stdout]   --> src/lib.rs:23:20
[INFO] [stdout]    |
[INFO] [stdout] 16 | let val = readable.read_signed().expect("Should read number");
[INFO] [stdout]    |                    ^^^^^^^^^^^ method not found in `&[{integer}]`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0599.
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 29) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `leb128`
[INFO] [stdout]  --> src/lib.rs:30:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use leb128::write::LEB128Write;
[INFO] [stdout]   |     ^^^^^^ use of undeclared crate or module `leb128`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `leb128`
[INFO] [stdout]  --> src/lib.rs:31:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use leb128::read::LEB128Read;
[INFO] [stdout]   |     ^^^^^^ use of undeclared crate or module `leb128`
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `write_unsigned` found for mutable reference `&mut [{integer}]` in the current scope
[INFO] [stdout]   --> src/lib.rs:37:14
[INFO] [stdout]    |
[INFO] [stdout] 10 |     writable.write_unsigned(98765).expect("Should write number");
[INFO] [stdout]    |              ^^^^^^^^^^^^^^ method not found in `&mut [{integer}]`
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read_signed` found for reference `&[{integer}]` in the current scope
[INFO] [stdout]   --> src/lib.rs:41:20
[INFO] [stdout]    |
[INFO] [stdout] 14 | let val = readable.read_signed().expect("Should read number");
[INFO] [stdout]    |                    ^^^^^^^^^^^ method not found in `&[{integer}]`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0599.
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 29)
[INFO] [stdout]     src/lib.rs - (line 9)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "d619111f839819e5ea357073935c7713ac601b1ffb49c634326cc56d97943b50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d619111f839819e5ea357073935c7713ac601b1ffb49c634326cc56d97943b50", kill_on_drop: false }`
[INFO] [stdout] d619111f839819e5ea357073935c7713ac601b1ffb49c634326cc56d97943b50
