[INFO] cloning repository https://github.com/MarcusGrass/tiny-cli
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MarcusGrass/tiny-cli" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarcusGrass%2Ftiny-cli", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarcusGrass%2Ftiny-cli'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 61a6dab0f50164b90bdc869abe38677b0cb55aba
[INFO] checking MarcusGrass/tiny-cli against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarcusGrass%2Ftiny-cli" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/MarcusGrass/tiny-cli
[INFO] finished tweaking git repo https://github.com/MarcusGrass/tiny-cli
[INFO] tweaked toml for git repo https://github.com/MarcusGrass/tiny-cli written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/MarcusGrass/tiny-cli on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/MarcusGrass/tiny-cli 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c3327bf49214ffb5eebd40388c9aab2cd54c932692f9724a2c934a886ca1997
[INFO] running `Command { std: "docker" "start" "-a" "2c3327bf49214ffb5eebd40388c9aab2cd54c932692f9724a2c934a886ca1997", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c3327bf49214ffb5eebd40388c9aab2cd54c932692f9724a2c934a886ca1997", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c3327bf49214ffb5eebd40388c9aab2cd54c932692f9724a2c934a886ca1997", kill_on_drop: false }`
[INFO] [stdout] 2c3327bf49214ffb5eebd40388c9aab2cd54c932692f9724a2c934a886ca1997
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ad9918c7888162ea91d4d58761136ed024007f49e27202b124703d876e455e1
[INFO] running `Command { std: "docker" "start" "-a" "3ad9918c7888162ea91d4d58761136ed024007f49e27202b124703d876e455e1", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Checking sc v0.2.7
[INFO] [stderr]     Checking tiny-cli v0.1.2 (/opt/rustwide/workdir/tiny-cli)
[INFO] [stderr]     Checking unix-print v0.1.0
[INFO] [stdout] warning: calls to `std::str::from_utf8` with an invalid literal always return an error
[INFO] [stdout]    --> tiny-cli/src/lib.rs:440:17
[INFO] [stdout]     |
[INFO] [stdout] 439 |         let invalid_utf8 = b"\xc3\x28";
[INFO] [stdout]     |                            ----------- the literal was valid UTF-8 up to the 0 bytes
[INFO] [stdout] 440 |         let e = core::str::from_utf8(invalid_utf8).err().unwrap();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(invalid_from_utf8)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> tiny-cli/src/lib.rs:205:68
[INFO] [stdout]     |
[INFO] [stdout] 205 |                                               $required_field = Some(<$req_ty>::from_str(next)
[INFO] [stdout]     |                                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 480 | /     arg_parse!(
[INFO] [stdout] 481 | |         #[name("My nested command")]
[INFO] [stdout] 482 | |         #[description("Use this nested subcommand for fun and profit")]
[INFO] [stdout] 483 | |         pub struct NestedSc {
[INFO] [stdout] ...   |
[INFO] [stdout] 489 | |     );
[INFO] [stdout]     | |_____- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]     = note: this error originates in the macro `arg_parse` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> tiny-cli/src/lib.rs:241:68
[INFO] [stdout]     |
[INFO] [stdout] 241 |                                               $required_field = Some(<$req_ty>::from_str(next)
[INFO] [stdout]     |                                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 480 | /     arg_parse!(
[INFO] [stdout] 481 | |         #[name("My nested command")]
[INFO] [stdout] 482 | |         #[description("Use this nested subcommand for fun and profit")]
[INFO] [stdout] 483 | |         pub struct NestedSc {
[INFO] [stdout] ...   |
[INFO] [stdout] 489 | |     );
[INFO] [stdout]     | |_____- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `arg_parse` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> tiny-cli/src/lib.rs:205:68
[INFO] [stdout]     |
[INFO] [stdout] 205 |                                               $required_field = Some(<$req_ty>::from_str(next)
[INFO] [stdout]     |                                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 490 | /     arg_parse!(
[INFO] [stdout] 491 | |         #[name("My first first level subcommand")]
[INFO] [stdout] 492 | |         #[description("Use this nested subcommand for fun and profit")]
[INFO] [stdout] 493 | |         pub struct ScOne {
[INFO] [stdout] ...   |
[INFO] [stdout] 499 | |     );
[INFO] [stdout]     | |_____- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `arg_parse` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> tiny-cli/src/lib.rs:241:68
[INFO] [stdout]     |
[INFO] [stdout] 241 |                                               $required_field = Some(<$req_ty>::from_str(next)
[INFO] [stdout]     |                                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 490 | /     arg_parse!(
[INFO] [stdout] 491 | |         #[name("My first first level subcommand")]
[INFO] [stdout] 492 | |         #[description("Use this nested subcommand for fun and profit")]
[INFO] [stdout] 493 | |         pub struct ScOne {
[INFO] [stdout] ...   |
[INFO] [stdout] 499 | |     );
[INFO] [stdout]     | |_____- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `arg_parse` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> tiny-cli/src/lib.rs:215:68
[INFO] [stdout]     |
[INFO] [stdout] 215 |                                               $optional_field = Some(<$opt_ty>::from_str(next)
[INFO] [stdout]     |                                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 500 | /     arg_parse!(
[INFO] [stdout] 501 | |         #[name("My second first level subcommand")]
[INFO] [stdout] 502 | |         #[description("Use this nested subcommand for fun and profit")]
[INFO] [stdout] 503 | |         pub struct ScTwo {
[INFO] [stdout] ...   |
[INFO] [stdout] 508 | |     );
[INFO] [stdout]     | |_____- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `arg_parse` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> tiny-cli/src/lib.rs:251:68
[INFO] [stdout]     |
[INFO] [stdout] 251 |                                               $optional_field = Some(<$opt_ty>::from_str(next)
[INFO] [stdout]     |                                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 500 | /     arg_parse!(
[INFO] [stdout] 501 | |         #[name("My second first level subcommand")]
[INFO] [stdout] 502 | |         #[description("Use this nested subcommand for fun and profit")]
[INFO] [stdout] 503 | |         pub struct ScTwo {
[INFO] [stdout] ...   |
[INFO] [stdout] 508 | |     );
[INFO] [stdout]     | |_____- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `arg_parse` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> tiny-cli/src/lib.rs:205:68
[INFO] [stdout]     |
[INFO] [stdout] 205 |                                               $required_field = Some(<$req_ty>::from_str(next)
[INFO] [stdout]     |                                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 509 | /     arg_parse!(
[INFO] [stdout] 510 | |         #[name("My top level command")]
[INFO] [stdout] 511 | |         #[description("Use top level command with subcommands for fun and profit")]
[INFO] [stdout] 512 | |         pub struct Mc {
[INFO] [stdout] ...   |
[INFO] [stdout] 522 | |     );
[INFO] [stdout]     | |_____- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `arg_parse` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> tiny-cli/src/lib.rs:241:68
[INFO] [stdout]     |
[INFO] [stdout] 241 |                                               $required_field = Some(<$req_ty>::from_str(next)
[INFO] [stdout]     |                                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 509 | /     arg_parse!(
[INFO] [stdout] 510 | |         #[name("My top level command")]
[INFO] [stdout] 511 | |         #[description("Use top level command with subcommands for fun and profit")]
[INFO] [stdout] 512 | |         pub struct Mc {
[INFO] [stdout] ...   |
[INFO] [stdout] 522 | |     );
[INFO] [stdout]     | |_____- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `arg_parse` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tiny-cli` (lib test) due to 8 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "3ad9918c7888162ea91d4d58761136ed024007f49e27202b124703d876e455e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ad9918c7888162ea91d4d58761136ed024007f49e27202b124703d876e455e1", kill_on_drop: false }`
[INFO] [stdout] 3ad9918c7888162ea91d4d58761136ed024007f49e27202b124703d876e455e1
