[INFO] fetching crate cmd_lib_cf_macros 1.3.1...
[INFO] testing cmd_lib_cf_macros-1.3.1 against try#db823df02fd0c2cf67b43025ac3fef3f2d743245 for pr-150681
[INFO] extracting crate cmd_lib_cf_macros 1.3.1 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate cmd_lib_cf_macros 1.3.1
[INFO] finished tweaking crates.io crate cmd_lib_cf_macros 1.3.1
[INFO] tweaked toml for crates.io crate cmd_lib_cf_macros 1.3.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cmd_lib_cf_macros 1.3.1 on toolchain db823df02fd0c2cf67b43025ac3fef3f2d743245
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 7 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.114)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f0daaefe5b801e960e55de848488ebabca112ad564b7bb9af39d8c78cae6047
[INFO] running `Command { std: "docker" "start" "-a" "1f0daaefe5b801e960e55de848488ebabca112ad564b7bb9af39d8c78cae6047", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f0daaefe5b801e960e55de848488ebabca112ad564b7bb9af39d8c78cae6047", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f0daaefe5b801e960e55de848488ebabca112ad564b7bb9af39d8c78cae6047", kill_on_drop: false }`
[INFO] [stdout] 1f0daaefe5b801e960e55de848488ebabca112ad564b7bb9af39d8c78cae6047
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=forbid" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52886834f69c00fa505d598583a45b5a9b07e84760b49413397a211e5070586c
[INFO] running `Command { std: "docker" "start" "-a" "52886834f69c00fa505d598583a45b5a9b07e84760b49413397a211e5070586c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling cmd_lib_cf_macros v1.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.55s
[INFO] running `Command { std: "docker" "inspect" "52886834f69c00fa505d598583a45b5a9b07e84760b49413397a211e5070586c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52886834f69c00fa505d598583a45b5a9b07e84760b49413397a211e5070586c", kill_on_drop: false }`
[INFO] [stdout] 52886834f69c00fa505d598583a45b5a9b07e84760b49413397a211e5070586c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=forbid" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f767b4e38670e333e3e36fbc649d9e2fb509ad5754271c0c07e14009d8a3bcb
[INFO] running `Command { std: "docker" "start" "-a" "7f767b4e38670e333e3e36fbc649d9e2fb509ad5754271c0c07e14009d8a3bcb", kill_on_drop: false }`
[INFO] [stderr]    Compiling cmd_lib_cf_macros v1.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "7f767b4e38670e333e3e36fbc649d9e2fb509ad5754271c0c07e14009d8a3bcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f767b4e38670e333e3e36fbc649d9e2fb509ad5754271c0c07e14009d8a3bcb", kill_on_drop: false }`
[INFO] [stdout] 7f767b4e38670e333e3e36fbc649d9e2fb509ad5754271c0c07e14009d8a3bcb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=forbid" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7d8470b07ddc17f2584614ae94a6fff0d33386b7101edb1403ab6f5bcd54b2ff
[INFO] running `Command { std: "docker" "start" "-a" "7d8470b07ddc17f2584614ae94a6fff0d33386b7101edb1403ab6f5bcd54b2ff", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/cmd_lib_cf_macros-b1e920465154fdca)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests cmd_lib_cf_macros
[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] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test src/lib.rs - run_cmd (line 113) ... FAILED
[INFO] [stdout] test src/lib.rs - cmd_info (line 262) ... FAILED
[INFO] [stdout] test src/lib.rs - cmd_die (line 309) ... FAILED
[INFO] [stdout] test src/lib.rs - run_fun (line 150) ... FAILED
[INFO] [stdout] test src/lib.rs - use_builtin_cmd (line 84) ... FAILED
[INFO] [stdout] test src/lib.rs - use_custom_cmd (line 45) ... FAILED
[INFO] [stdout] test src/lib.rs - export_cmd (line 7) ... FAILED
[INFO] [stdout] test src/lib.rs - spawn_with_output (line 195) ... FAILED
[INFO] [stdout] test src/lib.rs - spawn (line 173) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - run_cmd (line 113) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `cmd_lib_cf`
[INFO] [stdout]    --> src/lib.rs:114:5
[INFO] [stdout]     |
[INFO] [stdout] 114 | use cmd_lib_cf::run_cmd;
[INFO] [stdout]     |     ^^^^^^^^^^ use of unresolved module or unlinked crate `cmd_lib_cf`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `cmd_lib_cf`, use `cargo add cmd_lib_cf` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - cmd_info (line 262) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `cmd_lib_cf`
[INFO] [stdout]    --> src/lib.rs:263:5
[INFO] [stdout]     |
[INFO] [stdout] 263 | use cmd_lib_cf::cmd_info;
[INFO] [stdout]     |     ^^^^^^^^^^ use of unresolved module or unlinked crate `cmd_lib_cf`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `cmd_lib_cf`, use `cargo add cmd_lib_cf` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - cmd_die (line 309) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `cmd_lib_cf`
[INFO] [stdout]    --> src/lib.rs:310:5
[INFO] [stdout]     |
[INFO] [stdout] 310 | use cmd_lib_cf::cmd_die;
[INFO] [stdout]     |     ^^^^^^^^^^ use of unresolved module or unlinked crate `cmd_lib_cf`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `cmd_lib_cf`, use `cargo add cmd_lib_cf` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - run_fun (line 150) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `cmd_lib_cf`
[INFO] [stdout]    --> src/lib.rs:151:5
[INFO] [stdout]     |
[INFO] [stdout] 151 | use cmd_lib_cf::run_fun;
[INFO] [stdout]     |     ^^^^^^^^^^ use of unresolved module or unlinked crate `cmd_lib_cf`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `cmd_lib_cf`, use `cargo add cmd_lib_cf` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - use_builtin_cmd (line 84) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `cmd_lib_cf`
[INFO] [stdout]   --> src/lib.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 85 | use cmd_lib_cf::*;
[INFO] [stdout]    |     ^^^^^^^^^^ use of unresolved module or unlinked crate `cmd_lib_cf`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `cmd_lib_cf`, use `cargo add cmd_lib_cf` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `use_builtin_cmd` in this scope
[INFO] [stdout]   --> src/lib.rs:87:1
[INFO] [stdout]    |
[INFO] [stdout] 87 | use_builtin_cmd!(echo, info, warn, err, die, cat);
[INFO] [stdout]    | ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]    |
[INFO] [stdout] 84 + use cmd_lib_cf_macros::use_builtin_cmd;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `use_builtin_cmd` in this scope
[INFO] [stdout]   --> src/lib.rs:86:1
[INFO] [stdout]    |
[INFO] [stdout] 86 | use_builtin_cmd!(info); // import only one builtin command
[INFO] [stdout]    | ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]    |
[INFO] [stdout] 84 + use cmd_lib_cf_macros::use_builtin_cmd;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - use_custom_cmd (line 45) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `cmd_lib_cf`
[INFO] [stdout]   --> src/lib.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 | use cmd_lib_cf::*;
[INFO] [stdout]    |     ^^^^^^^^^^ use of unresolved module or unlinked crate `cmd_lib_cf`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `cmd_lib_cf`, use `cargo add cmd_lib_cf` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `run_cmd` in this scope
[INFO] [stdout]   --> src/lib.rs:55:1
[INFO] [stdout]    |
[INFO] [stdout] 55 | run_cmd!(my_cmd)?;
[INFO] [stdout]    | ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]    |
[INFO] [stdout] 45 + use cmd_lib_cf_macros::run_cmd;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `use_custom_cmd` in this scope
[INFO] [stdout]   --> src/lib.rs:54:1
[INFO] [stdout]    |
[INFO] [stdout] 54 | use_custom_cmd!(my_cmd);
[INFO] [stdout]    | ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]    |
[INFO] [stdout] 45 + use cmd_lib_cf_macros::use_custom_cmd;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `export_cmd` in this scope
[INFO] [stdout]   --> src/lib.rs:47:3
[INFO] [stdout]    |
[INFO] [stdout] 47 | #[export_cmd(my_cmd)]
[INFO] [stdout]    |   ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: a built-in attribute with a similar name exists
[INFO] [stdout]    |
[INFO] [stdout] 47 - #[export_cmd(my_cmd)]
[INFO] [stdout] 47 + #[export_name(my_cmd)]
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this attribute macro
[INFO] [stdout]    |
[INFO] [stdout] 45 + use cmd_lib_cf_macros::export_cmd;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - export_cmd (line 7) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `cmd_lib_cf`
[INFO] [stdout]  --> src/lib.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use cmd_lib_cf::*;
[INFO] [stdout]   |     ^^^^^^^^^^ use of unresolved module or unlinked crate `cmd_lib_cf`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `cmd_lib_cf`, use `cargo add cmd_lib_cf` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `export_cmd` in this scope
[INFO] [stdout]   --> src/lib.rs:10:3
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[export_cmd(my_cmd)]
[INFO] [stdout]    |   ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: a built-in attribute with a similar name exists
[INFO] [stdout]    |
[INFO] [stdout] 10 - #[export_cmd(my_cmd)]
[INFO] [stdout] 10 + #[export_name(my_cmd)]
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this attribute macro
[INFO] [stdout]    |
[INFO] [stdout]  7 + use cmd_lib_cf_macros::export_cmd;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `use_custom_cmd` in this scope
[INFO] [stdout]   --> src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | use_custom_cmd!(my_cmd);
[INFO] [stdout]    | ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]    |
[INFO] [stdout]  7 + use cmd_lib_cf_macros::use_custom_cmd;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `run_cmd` in this scope
[INFO] [stdout]   --> src/lib.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | run_cmd!(my_cmd)?;
[INFO] [stdout]    | ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]    |
[INFO] [stdout]  7 + use cmd_lib_cf_macros::run_cmd;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `run_fun` in this scope
[INFO] [stdout]   --> src/lib.rs:19:28
[INFO] [stdout]    |
[INFO] [stdout] 19 | println!("get result: {}", run_fun!(my_cmd)?);
[INFO] [stdout]    |                            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]    |
[INFO] [stdout]  7 + use cmd_lib_cf_macros::run_fun;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - spawn_with_output (line 195) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `cmd_lib_cf`
[INFO] [stdout]    --> src/lib.rs:196:5
[INFO] [stdout]     |
[INFO] [stdout] 196 | use cmd_lib_cf::*;
[INFO] [stdout]     |     ^^^^^^^^^^ use of unresolved module or unlinked crate `cmd_lib_cf`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `cmd_lib_cf`, use `cargo add cmd_lib_cf` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `spawn_with_output` in this scope
[INFO] [stdout]    --> src/lib.rs:199:16
[INFO] [stdout]     |
[INFO] [stdout] 199 |     let proc = spawn_with_output!(
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]     |
[INFO] [stdout] 195 + use cmd_lib_cf_macros::spawn_with_output;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `run_cmd` in this scope
[INFO] [stdout]    --> src/lib.rs:208:5
[INFO] [stdout]     |
[INFO] [stdout] 208 |     run_cmd!(info "thread $i bandwidth: $bandwidth MB/s")?;
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]     |
[INFO] [stdout] 195 + use cmd_lib_cf_macros::run_cmd;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:207:21
[INFO] [stdout]     |
[INFO] [stdout] 207 |     let bandwidth = proc.wait_with_output()?;
[INFO] [stdout]     |                     ^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0432.
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - spawn (line 173) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `cmd_lib_cf`
[INFO] [stdout]    --> src/lib.rs:174:5
[INFO] [stdout]     |
[INFO] [stdout] 174 | use cmd_lib_cf::*;
[INFO] [stdout]     |     ^^^^^^^^^^ use of unresolved module or unlinked crate `cmd_lib_cf`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `cmd_lib_cf`, use `cargo add cmd_lib_cf` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `spawn` in this scope
[INFO] [stdout]    --> src/lib.rs:176:14
[INFO] [stdout]     |
[INFO] [stdout] 176 | let handle = spawn!(ping -c 10 192.168.0.1)?;
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]     |
[INFO] [stdout] 173 + use cmd_lib_cf_macros::spawn;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - cmd_die (line 309)
[INFO] [stdout]     src/lib.rs - cmd_info (line 262)
[INFO] [stdout]     src/lib.rs - export_cmd (line 7)
[INFO] [stdout]     src/lib.rs - run_cmd (line 113)
[INFO] [stdout]     src/lib.rs - run_fun (line 150)
[INFO] [stdout]     src/lib.rs - spawn (line 173)
[INFO] [stdout]     src/lib.rs - spawn_with_output (line 195)
[INFO] [stdout]     src/lib.rs - use_builtin_cmd (line 84)
[INFO] [stdout]     src/lib.rs - use_custom_cmd (line 45)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 9 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.41s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "7d8470b07ddc17f2584614ae94a6fff0d33386b7101edb1403ab6f5bcd54b2ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d8470b07ddc17f2584614ae94a6fff0d33386b7101edb1403ab6f5bcd54b2ff", kill_on_drop: false }`
[INFO] [stdout] 7d8470b07ddc17f2584614ae94a6fff0d33386b7101edb1403ab6f5bcd54b2ff
