[INFO] fetching crate rkpi2 0.1.2...
[INFO] testing rkpi2-0.1.2 against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] extracting crate rkpi2 0.1.2 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate rkpi2 0.1.2 on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rkpi2 0.1.2
[INFO] finished tweaking crates.io crate rkpi2 0.1.2
[INFO] tweaked toml for crates.io crate rkpi2 0.1.2 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: version requirement `0.5.1+zstd.1.4.4` for dependency `zstd` includes semver metadata which will be ignored, removing the metadata is recommended to avoid confusion
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2124d94e824a93ab4b36db7ed549a575ba53404e755ed728d781e7d813b0d9a7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2124d94e824a93ab4b36db7ed549a575ba53404e755ed728d781e7d813b0d9a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2124d94e824a93ab4b36db7ed549a575ba53404e755ed728d781e7d813b0d9a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2124d94e824a93ab4b36db7ed549a575ba53404e755ed728d781e7d813b0d9a7", kill_on_drop: false }`
[INFO] [stdout] 2124d94e824a93ab4b36db7ed549a575ba53404e755ed728d781e7d813b0d9a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=forbid" "-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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a2279a122352376afa4eeadfef5e6a40b7aee0965bf24d2b1078c5754cbde30
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0a2279a122352376afa4eeadfef5e6a40b7aee0965bf24d2b1078c5754cbde30", kill_on_drop: false }`
[INFO] [stderr] warning: version requirement `0.5.1+zstd.1.4.4` for dependency `zstd` includes semver metadata which will be ignored, removing the metadata is recommended to avoid confusion
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling cc v1.0.65
[INFO] [stderr]    Compiling zstd-sys v1.4.17+zstd.1.4.5
[INFO] [stderr]    Compiling zstd-safe v2.0.5+zstd.1.4.5
[INFO] [stderr]    Compiling zstd v0.5.3+zstd.1.4.5
[INFO] [stderr]    Compiling rkpi2 v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant is never used: `SAMPLERATES`
[INFO] [stdout]   --> src/lib.rs:32:1
[INFO] [stdout]    |
[INFO] [stdout] 32 | / const SAMPLERATES: [u32; 8] = [
[INFO] [stdout] 33 | |     8000, 12000, 22050, 32000, 44100,
[INFO] [stdout] 34 | |     64000, 96000, 192000 ];
[INFO] [stdout]    | |___________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mux`
[INFO] [stdout]   --> src/lib.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn mux(w: Box<dyn Write>, h: Hdr, lev: Option<u8>)
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `demux`
[INFO] [stdout]   --> src/lib.rs:77:4
[INFO] [stdout]    |
[INFO] [stdout] 77 | fn demux(r: Box<dyn Read>)
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `S` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:46:14
[INFO] [stdout]    |
[INFO] [stdout] 46 |         Some(S) => S as u8,
[INFO] [stdout]    |              ^ help: convert the identifier to snake case (notice the capitalization): `s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `L` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:68:14
[INFO] [stdout]    |
[INFO] [stdout] 68 |         Some(L) => match Encoder::new(w, L as i32)
[INFO] [stdout]    |              ^ help: convert the identifier to snake case: `l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:69:14
[INFO] [stdout]    |
[INFO] [stdout] 69 |         { Ok(C) => Ok(Box::new(C)),
[INFO] [stdout]    |              ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `F` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:89:14
[INFO] [stdout]    |
[INFO] [stdout] 89 |         { Ok(F) => F, Err(E) => { return Err(E) } };
[INFO] [stdout]    |              ^ help: convert the identifier to snake case (notice the capitalization): `f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `E` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:89:27
[INFO] [stdout]    |
[INFO] [stdout] 89 |         { Ok(F) => F, Err(E) => { return Err(E) } };
[INFO] [stdout]    |                           ^ help: convert the identifier to snake case: `e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `D` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:99:18
[INFO] [stdout]    |
[INFO] [stdout] 99 |             { Ok(D) => Ok((Box::new(D), h)),
[INFO] [stdout]    |                  ^ help: convert the identifier to snake case: `d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 11s
[INFO] running `Command { std: "docker" "inspect" "0a2279a122352376afa4eeadfef5e6a40b7aee0965bf24d2b1078c5754cbde30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a2279a122352376afa4eeadfef5e6a40b7aee0965bf24d2b1078c5754cbde30", kill_on_drop: false }`
[INFO] [stdout] 0a2279a122352376afa4eeadfef5e6a40b7aee0965bf24d2b1078c5754cbde30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=forbid" "-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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9582ab86cdd2038ed1d181c3cc725e5f3d333b0fb9562d87c9ce225217280442
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9582ab86cdd2038ed1d181c3cc725e5f3d333b0fb9562d87c9ce225217280442", kill_on_drop: false }`
[INFO] [stderr] warning: version requirement `0.5.1+zstd.1.4.4` for dependency `zstd` includes semver metadata which will be ignored, removing the metadata is recommended to avoid confusion
[INFO] [stderr]    Compiling os_pipe v0.9.2
[INFO] [stdout] warning: constant is never used: `SAMPLERATES`
[INFO] [stdout]   --> src/lib.rs:32:1
[INFO] [stdout]    |
[INFO] [stdout] 32 | / const SAMPLERATES: [u32; 8] = [
[INFO] [stdout] 33 | |     8000, 12000, 22050, 32000, 44100,
[INFO] [stdout] 34 | |     64000, 96000, 192000 ];
[INFO] [stdout]    | |___________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mux`
[INFO] [stdout]   --> src/lib.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn mux(w: Box<dyn Write>, h: Hdr, lev: Option<u8>)
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `demux`
[INFO] [stdout]   --> src/lib.rs:77:4
[INFO] [stdout]    |
[INFO] [stdout] 77 | fn demux(r: Box<dyn Read>)
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `S` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:46:14
[INFO] [stdout]    |
[INFO] [stdout] 46 |         Some(S) => S as u8,
[INFO] [stdout]    |              ^ help: convert the identifier to snake case (notice the capitalization): `s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `L` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:68:14
[INFO] [stdout]    |
[INFO] [stdout] 68 |         Some(L) => match Encoder::new(w, L as i32)
[INFO] [stdout]    |              ^ help: convert the identifier to snake case: `l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:69:14
[INFO] [stdout]    |
[INFO] [stdout] 69 |         { Ok(C) => Ok(Box::new(C)),
[INFO] [stdout]    |              ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `F` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:89:14
[INFO] [stdout]    |
[INFO] [stdout] 89 |         { Ok(F) => F, Err(E) => { return Err(E) } };
[INFO] [stdout]    |              ^ help: convert the identifier to snake case (notice the capitalization): `f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `E` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:89:27
[INFO] [stdout]    |
[INFO] [stdout] 89 |         { Ok(F) => F, Err(E) => { return Err(E) } };
[INFO] [stdout]    |                           ^ help: convert the identifier to snake case: `e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `D` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:99:18
[INFO] [stdout]    |
[INFO] [stdout] 99 |             { Ok(D) => Ok((Box::new(D), h)),
[INFO] [stdout]    |                  ^ help: convert the identifier to snake case: `d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rkpi2 v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `S` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:46:14
[INFO] [stdout]    |
[INFO] [stdout] 46 |         Some(S) => S as u8,
[INFO] [stdout]    |              ^ help: convert the identifier to snake case (notice the capitalization): `s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `L` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:68:14
[INFO] [stdout]    |
[INFO] [stdout] 68 |         Some(L) => match Encoder::new(w, L as i32)
[INFO] [stdout]    |              ^ help: convert the identifier to snake case: `l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:69:14
[INFO] [stdout]    |
[INFO] [stdout] 69 |         { Ok(C) => Ok(Box::new(C)),
[INFO] [stdout]    |              ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `F` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:89:14
[INFO] [stdout]    |
[INFO] [stdout] 89 |         { Ok(F) => F, Err(E) => { return Err(E) } };
[INFO] [stdout]    |              ^ help: convert the identifier to snake case (notice the capitalization): `f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `E` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:89:27
[INFO] [stdout]    |
[INFO] [stdout] 89 |         { Ok(F) => F, Err(E) => { return Err(E) } };
[INFO] [stdout]    |                           ^ help: convert the identifier to snake case: `e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `D` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:99:18
[INFO] [stdout]    |
[INFO] [stdout] 99 |             { Ok(D) => Ok((Box::new(D), h)),
[INFO] [stdout]    |                  ^ help: convert the identifier to snake case: `d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.84s
[INFO] running `Command { std: "docker" "inspect" "9582ab86cdd2038ed1d181c3cc725e5f3d333b0fb9562d87c9ce225217280442", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9582ab86cdd2038ed1d181c3cc725e5f3d333b0fb9562d87c9ce225217280442", kill_on_drop: false }`
[INFO] [stdout] 9582ab86cdd2038ed1d181c3cc725e5f3d333b0fb9562d87c9ce225217280442
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=forbid" "-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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "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] 8579aa98f47a4599d60d03a9d84ab8fd38595a912c6a2680148415fabcc54515
[INFO] running `Command { std: "docker" "start" "-a" "8579aa98f47a4599d60d03a9d84ab8fd38595a912c6a2680148415fabcc54515", kill_on_drop: false }`
[INFO] [stderr] warning: version requirement `0.5.1+zstd.1.4.4` for dependency `zstd` includes semver metadata which will be ignored, removing the metadata is recommended to avoid confusion
[INFO] [stdout] 
[INFO] [stderr] warning: constant is never used: `SAMPLERATES`
[INFO] [stdout] running 1 test
[INFO] [stderr]   --> src/lib.rs:32:1
[INFO] [stdout] test rkpi2_hdr_and_data ... ok
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr] 32 | / const SAMPLERATES: [u32; 8] = [
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr] 33 | |     8000, 12000, 22050, 32000, 44100,
[INFO] [stdout] 
[INFO] [stderr] 34 | |     64000, 96000, 192000 ];
[INFO] [stderr]    | |___________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `mux`
[INFO] [stderr]   --> src/lib.rs:40:4
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn mux(w: Box<dyn Write>, h: Hdr, lev: Option<u8>)
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `demux`
[INFO] [stderr]   --> src/lib.rs:77:4
[INFO] [stderr]    |
[INFO] [stderr] 77 | fn demux(r: Box<dyn Read>)
[INFO] [stderr]    |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `S` should have a snake case name
[INFO] [stderr]   --> src/lib.rs:46:14
[INFO] [stderr]    |
[INFO] [stderr] 46 |         Some(S) => S as u8,
[INFO] [stderr]    |              ^ help: convert the identifier to snake case (notice the capitalization): `s`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `L` should have a snake case name
[INFO] [stderr]   --> src/lib.rs:68:14
[INFO] [stderr]    |
[INFO] [stderr] 68 |         Some(L) => match Encoder::new(w, L as i32)
[INFO] [stderr]    |              ^ help: convert the identifier to snake case: `l`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `C` should have a snake case name
[INFO] [stderr]   --> src/lib.rs:69:14
[INFO] [stderr]    |
[INFO] [stderr] 69 |         { Ok(C) => Ok(Box::new(C)),
[INFO] [stderr]    |              ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `F` should have a snake case name
[INFO] [stderr]   --> src/lib.rs:89:14
[INFO] [stderr]    |
[INFO] [stderr] 89 |         { Ok(F) => F, Err(E) => { return Err(E) } };
[INFO] [stderr]    |              ^ help: convert the identifier to snake case (notice the capitalization): `f`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `E` should have a snake case name
[INFO] [stderr]   --> src/lib.rs:89:27
[INFO] [stderr]    |
[INFO] [stderr] 89 |         { Ok(F) => F, Err(E) => { return Err(E) } };
[INFO] [stderr]    |                           ^ help: convert the identifier to snake case: `e`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `D` should have a snake case name
[INFO] [stderr]   --> src/lib.rs:99:18
[INFO] [stderr]    |
[INFO] [stderr] 99 |             { Ok(D) => Ok((Box::new(D), h)),
[INFO] [stderr]    |                  ^ help: convert the identifier to snake case: `d`
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable `S` should have a snake case name
[INFO] [stderr]   --> src/lib.rs:46:14
[INFO] [stderr]    |
[INFO] [stderr] 46 |         Some(S) => S as u8,
[INFO] [stderr]    |              ^ help: convert the identifier to snake case (notice the capitalization): `s`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `L` should have a snake case name
[INFO] [stderr]   --> src/lib.rs:68:14
[INFO] [stderr]    |
[INFO] [stderr] 68 |         Some(L) => match Encoder::new(w, L as i32)
[INFO] [stderr]    |              ^ help: convert the identifier to snake case: `l`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `C` should have a snake case name
[INFO] [stderr]   --> src/lib.rs:69:14
[INFO] [stderr]    |
[INFO] [stderr] 69 |         { Ok(C) => Ok(Box::new(C)),
[INFO] [stderr]    |              ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `F` should have a snake case name
[INFO] [stderr]   --> src/lib.rs:89:14
[INFO] [stderr]    |
[INFO] [stderr] 89 |         { Ok(F) => F, Err(E) => { return Err(E) } };
[INFO] [stderr]    |              ^ help: convert the identifier to snake case (notice the capitalization): `f`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `E` should have a snake case name
[INFO] [stderr]   --> src/lib.rs:89:27
[INFO] [stderr]    |
[INFO] [stderr] 89 |         { Ok(F) => F, Err(E) => { return Err(E) } };
[INFO] [stderr]    |                           ^ help: convert the identifier to snake case: `e`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `D` should have a snake case name
[INFO] [stderr]   --> src/lib.rs:99:18
[INFO] [stderr]    |
[INFO] [stderr] 99 |             { Ok(D) => Ok((Box::new(D), h)),
[INFO] [stderr]    |                  ^ help: convert the identifier to snake case: `d`
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rkpi2-e7573162e340f49a
[INFO] [stderr]    Doc-tests rkpi2
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 10) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 10) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Fmt`
[INFO] [stdout]  --> src/lib.rs:17:21
[INFO] [stdout]   |
[INFO] [stdout] 8 |             format: Fmt::Int8,
[INFO] [stdout]   |                     ^^^ use of undeclared type `Fmt`
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `mux` in this scope
[INFO] [stdout]  --> src/lib.rs:15:21
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let mut rkout = mux(Box::new(out),
[INFO] [stdout]   |                     ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0422]: cannot find struct, variant or union type `Hdr` in this scope
[INFO] [stdout]  --> src/lib.rs:16:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |         Hdr {
[INFO] [stdout]   |         ^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rkpi2::Hdr;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0422, E0425, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0422`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 10)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "8579aa98f47a4599d60d03a9d84ab8fd38595a912c6a2680148415fabcc54515", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8579aa98f47a4599d60d03a9d84ab8fd38595a912c6a2680148415fabcc54515", kill_on_drop: false }`
[INFO] [stdout] 8579aa98f47a4599d60d03a9d84ab8fd38595a912c6a2680148415fabcc54515