[INFO] cloning repository https://github.com/SparkySimp/luhn-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SparkySimp/luhn-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSparkySimp%2Fluhn-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSparkySimp%2Fluhn-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d2732c0659d389bc6bab627fb0c40e242d9d0d32
[INFO] testing SparkySimp/luhn-rs against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSparkySimp%2Fluhn-rs" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/SparkySimp/luhn-rs
[INFO] finished tweaking git repo https://github.com/SparkySimp/luhn-rs
[INFO] tweaked toml for git repo https://github.com/SparkySimp/luhn-rs written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/SparkySimp/luhn-rs on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/SparkySimp/luhn-rs 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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d38af4d517b1c7729805e6d87b223a3411b69b7cf0b91316be4983375ad22862
[INFO] running `Command { std: "docker" "start" "-a" "d38af4d517b1c7729805e6d87b223a3411b69b7cf0b91316be4983375ad22862", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d38af4d517b1c7729805e6d87b223a3411b69b7cf0b91316be4983375ad22862", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d38af4d517b1c7729805e6d87b223a3411b69b7cf0b91316be4983375ad22862", kill_on_drop: false }`
[INFO] [stdout] d38af4d517b1c7729805e6d87b223a3411b69b7cf0b91316be4983375ad22862
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=forbid -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] afeb08b16671f242eab4a91d1c3e81c0e3eeae6c548941b52b5cfcd96fa151c4
[INFO] running `Command { std: "docker" "start" "-a" "afeb08b16671f242eab4a91d1c3e81c0e3eeae6c548941b52b5cfcd96fa151c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling getrandom v0.2.9
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling luhn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.22s
[INFO] running `Command { std: "docker" "inspect" "afeb08b16671f242eab4a91d1c3e81c0e3eeae6c548941b52b5cfcd96fa151c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afeb08b16671f242eab4a91d1c3e81c0e3eeae6c548941b52b5cfcd96fa151c4", kill_on_drop: false }`
[INFO] [stdout] afeb08b16671f242eab4a91d1c3e81c0e3eeae6c548941b52b5cfcd96fa151c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=forbid -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e8be761f601dc8bc95c7d2b0ba246d883a22cda95d36a39aa72fd2b0814399b
[INFO] running `Command { std: "docker" "start" "-a" "2e8be761f601dc8bc95c7d2b0ba246d883a22cda95d36a39aa72fd2b0814399b", kill_on_drop: false }`
[INFO] [stderr]    Compiling luhn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "2e8be761f601dc8bc95c7d2b0ba246d883a22cda95d36a39aa72fd2b0814399b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e8be761f601dc8bc95c7d2b0ba246d883a22cda95d36a39aa72fd2b0814399b", kill_on_drop: false }`
[INFO] [stdout] 2e8be761f601dc8bc95c7d2b0ba246d883a22cda95d36a39aa72fd2b0814399b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=forbid -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fd6795432ac59963104256e2af7754d8e848fbddbf2f5265f3c1016b9323b349
[INFO] running `Command { std: "docker" "start" "-a" "fd6795432ac59963104256e2af7754d8e848fbddbf2f5265f3c1016b9323b349", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/luhn-9a71527ff38fce4a)
[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]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/luhn-9b81bf678ace40fa)
[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 luhn
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - generate (line 60) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 7) ... FAILED
[INFO] [stdout] test src/lib.rs - is_valid (line 23) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - generate (line 60) stdout ----
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lib.rs:65:24
[INFO] [stdout]    |
[INFO] [stdout] 8  | assert!(luhn::is_valid(number));
[INFO] [stdout]    |         -------------- ^^^^^^ expected `&String`, found `String`
[INFO] [stdout]    |         |
[INFO] [stdout]    |         arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> /opt/rustwide/workdir/src/lib.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn is_valid(number: &String) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] help: consider borrowing here
[INFO] [stdout]    |
[INFO] [stdout] 8  | assert!(luhn::is_valid(&number));
[INFO] [stdout]    |                        +
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 7) stdout ----
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lib.rs:11:18
[INFO] [stdout]    |
[INFO] [stdout] 7  | assert!(is_valid("4539 1488 0343 6467"));
[INFO] [stdout]    |         -------- ^^^^^^^^^^^^^^^^^^^^^ expected `&String`, found `&str`
[INFO] [stdout]    |         |
[INFO] [stdout]    |         arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected reference `&String`
[INFO] [stdout]               found reference `&'static str`
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> /opt/rustwide/workdir/src/lib.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn is_valid(number: &String) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lib.rs:12:18
[INFO] [stdout]    |
[INFO] [stdout] 8  | assert!(is_valid("8273 1232 7352 0569"));
[INFO] [stdout]    |         -------- ^^^^^^^^^^^^^^^^^^^^^ expected `&String`, found `&str`
[INFO] [stdout]    |         |
[INFO] [stdout]    |         arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected reference `&String`
[INFO] [stdout]               found reference `&'static str`
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> /opt/rustwide/workdir/src/lib.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn is_valid(number: &String) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lib.rs:13:18
[INFO] [stdout]    |
[INFO] [stdout] 9  | assert!(is_valid("2323 2005 7766 3554"));
[INFO] [stdout]    |         -------- ^^^^^^^^^^^^^^^^^^^^^ expected `&String`, found `&str`
[INFO] [stdout]    |         |
[INFO] [stdout]    |         arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected reference `&String`
[INFO] [stdout]               found reference `&'static str`
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> /opt/rustwide/workdir/src/lib.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn is_valid(number: &String) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lib.rs:14:18
[INFO] [stdout]    |
[INFO] [stdout] 10 | assert!(is_valid("2323200577663554"));
[INFO] [stdout]    |         -------- ^^^^^^^^^^^^^^^^^^ expected `&String`, found `&str`
[INFO] [stdout]    |         |
[INFO] [stdout]    |         arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected reference `&String`
[INFO] [stdout]               found reference `&'static str`
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> /opt/rustwide/workdir/src/lib.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn is_valid(number: &String) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lib.rs:15:18
[INFO] [stdout]    |
[INFO] [stdout] 11 | assert!(is_valid("2323-2005-7766-3554"));
[INFO] [stdout]    |         -------- ^^^^^^^^^^^^^^^^^^^^^ expected `&String`, found `&str`
[INFO] [stdout]    |         |
[INFO] [stdout]    |         arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected reference `&String`
[INFO] [stdout]               found reference `&'static str`
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> /opt/rustwide/workdir/src/lib.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn is_valid(number: &String) -> bool {
[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 E0308`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - is_valid (line 23) stdout ----
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lib.rs:27:18
[INFO] [stdout]    |
[INFO] [stdout] 7  | assert!(is_valid("4539 1488 0343 6467"));   // Visa
[INFO] [stdout]    |         -------- ^^^^^^^^^^^^^^^^^^^^^ expected `&String`, found `&str`
[INFO] [stdout]    |         |
[INFO] [stdout]    |         arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected reference `&String`
[INFO] [stdout]               found reference `&'static str`
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> /opt/rustwide/workdir/src/lib.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn is_valid(number: &String) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lib.rs:28:18
[INFO] [stdout]    |
[INFO] [stdout] 8  | assert!(is_valid("8273 1232 7352 0569"));   // Diners Club
[INFO] [stdout]    |         -------- ^^^^^^^^^^^^^^^^^^^^^ expected `&String`, found `&str`
[INFO] [stdout]    |         |
[INFO] [stdout]    |         arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected reference `&String`
[INFO] [stdout]               found reference `&'static str`
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> /opt/rustwide/workdir/src/lib.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn is_valid(number: &String) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lib.rs:29:18
[INFO] [stdout]    |
[INFO] [stdout] 9  | assert!(is_valid("2323 2005 7766 3554"));   // MasterCard
[INFO] [stdout]    |         -------- ^^^^^^^^^^^^^^^^^^^^^ expected `&String`, found `&str`
[INFO] [stdout]    |         |
[INFO] [stdout]    |         arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected reference `&String`
[INFO] [stdout]               found reference `&'static str`
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> /opt/rustwide/workdir/src/lib.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn is_valid(number: &String) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lib.rs:30:18
[INFO] [stdout]    |
[INFO] [stdout] 10 | assert!(is_valid("2323200577663554"));      // MasterCard
[INFO] [stdout]    |         -------- ^^^^^^^^^^^^^^^^^^ expected `&String`, found `&str`
[INFO] [stdout]    |         |
[INFO] [stdout]    |         arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected reference `&String`
[INFO] [stdout]               found reference `&'static str`
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> /opt/rustwide/workdir/src/lib.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn is_valid(number: &String) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lib.rs:31:18
[INFO] [stdout]    |
[INFO] [stdout] 11 | assert!(is_valid("2323-2005-7766-3554"));
[INFO] [stdout]    |         -------- ^^^^^^^^^^^^^^^^^^^^^ expected `&String`, found `&str`
[INFO] [stdout]    |         |
[INFO] [stdout]    |         arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected reference `&String`
[INFO] [stdout]               found reference `&'static str`
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> /opt/rustwide/workdir/src/lib.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn is_valid(number: &String) -> bool {
[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 E0308`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 7)
[INFO] [stdout]     src/lib.rs - generate (line 60)
[INFO] [stdout]     src/lib.rs - is_valid (line 23)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.27s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "fd6795432ac59963104256e2af7754d8e848fbddbf2f5265f3c1016b9323b349", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd6795432ac59963104256e2af7754d8e848fbddbf2f5265f3c1016b9323b349", kill_on_drop: false }`
[INFO] [stdout] fd6795432ac59963104256e2af7754d8e848fbddbf2f5265f3c1016b9323b349
