[INFO] updating cached repository https://github.com/lotabout/rargs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 525e624c53630d1b094a342f29982438e65ddc96
[INFO] checking lotabout/rargs against master#4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb for pr-64672
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Flotabout%2Frargs" "work/builds/worker-6/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lotabout/rargs on toolchain 4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/lotabout/rargs
[INFO] finished tweaking git repo https://github.com/lotabout/rargs
[INFO] tweaked toml for git repo https://github.com/lotabout/rargs written to work/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/lotabout/rargs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c01117a882f61cb1b8a230d1a6b9457fdbd72ce726fcdc804a74c1c10442985d
[INFO] running `"docker" "start" "-a" "c01117a882f61cb1b8a230d1a6b9457fdbd72ce726fcdc804a74c1c10442985d"`
[INFO] [stderr]    Compiling serde v1.0.37
[INFO] [stderr]     Checking difference v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v0.3.6
[INFO] [stderr]     Checking serde_json v1.0.13
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]     Checking backtrace v0.3.5
[INFO] [stderr]    Compiling structopt-derive v0.2.6
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]    Compiling quote v0.5.1
[INFO] [stderr]    Compiling syn v0.13.1
[INFO] [stderr]     Checking structopt v0.2.6
[INFO] [stderr]     Checking rargs v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]extern crate structopt;
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/main.rs:67:1
[INFO] [stderr]    |
[INFO] [stderr] 67 | / lazy_static! {
[INFO] [stderr] 68 | |     static ref CMD_REGEX: Regex = Regex::new(r"\{[[:space:]]*[^{}]*[[:space:]]*\}").unwrap();
[INFO] [stderr] 69 | |
[INFO] [stderr] 70 | |     static ref FIELD_NAMED: Regex = Regex::new(r"^\{[[:space:]]*(?P<name>[[:word:]]*)[[:space:]]*\}$").unwrap();
[INFO] [stderr] 71 | |     static ref FIELD_SINGLE: Regex = Regex::new(r"^\{[[:space:]]*(?P<num>-?\d+)[[:space:]]*\}$").unwrap();
[INFO] [stderr] 72 | |     static ref FIELD_RANGE: Regex = Regex::new(r"^\{(?P<left>-?\d*)?\.\.(?P<right>-?\d*)?(?::(?P<sep>.*))?\}$").unwrap();
[INFO] [stderr] 73 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/main.rs:67:1
[INFO] [stderr]    |
[INFO] [stderr] 67 | / lazy_static! {
[INFO] [stderr] 68 | |     static ref CMD_REGEX: Regex = Regex::new(r"\{[[:space:]]*[^{}]*[[:space:]]*\}").unwrap();
[INFO] [stderr] 69 | |
[INFO] [stderr] 70 | |     static ref FIELD_NAMED: Regex = Regex::new(r"^\{[[:space:]]*(?P<name>[[:word:]]*)[[:space:]]*\}$").unwrap();
[INFO] [stderr] 71 | |     static ref FIELD_SINGLE: Regex = Regex::new(r"^\{[[:space:]]*(?P<num>-?\d+)[[:space:]]*\}$").unwrap();
[INFO] [stderr] 72 | |     static ref FIELD_RANGE: Regex = Regex::new(r"^\{(?P<left>-?\d*)?\.\.(?P<right>-?\d*)?(?::(?P<sep>.*))?\}$").unwrap();
[INFO] [stderr] 73 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/main.rs:67:1
[INFO] [stderr]    |
[INFO] [stderr] 67 | / lazy_static! {
[INFO] [stderr] 68 | |     static ref CMD_REGEX: Regex = Regex::new(r"\{[[:space:]]*[^{}]*[[:space:]]*\}").unwrap();
[INFO] [stderr] 69 | |
[INFO] [stderr] 70 | |     static ref FIELD_NAMED: Regex = Regex::new(r"^\{[[:space:]]*(?P<name>[[:word:]]*)[[:space:]]*\}$").unwrap();
[INFO] [stderr] 71 | |     static ref FIELD_SINGLE: Regex = Regex::new(r"^\{[[:space:]]*(?P<num>-?\d+)[[:space:]]*\}$").unwrap();
[INFO] [stderr] 72 | |     static ref FIELD_RANGE: Regex = Regex::new(r"^\{(?P<left>-?\d*)?\.\.(?P<right>-?\d*)?(?::(?P<sep>.*))?\}$").unwrap();
[INFO] [stderr] 73 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/main.rs:67:1
[INFO] [stderr]    |
[INFO] [stderr] 67 | / lazy_static! {
[INFO] [stderr] 68 | |     static ref CMD_REGEX: Regex = Regex::new(r"\{[[:space:]]*[^{}]*[[:space:]]*\}").unwrap();
[INFO] [stderr] 69 | |
[INFO] [stderr] 70 | |     static ref FIELD_NAMED: Regex = Regex::new(r"^\{[[:space:]]*(?P<name>[[:word:]]*)[[:space:]]*\}$").unwrap();
[INFO] [stderr] 71 | |     static ref FIELD_SINGLE: Regex = Regex::new(r"^\{[[:space:]]*(?P<num>-?\d+)[[:space:]]*\}$").unwrap();
[INFO] [stderr] 72 | |     static ref FIELD_RANGE: Regex = Regex::new(r"^\{(?P<left>-?\d*)?\.\.(?P<right>-?\d*)?(?::(?P<sep>.*))?\}$").unwrap();
[INFO] [stderr] 73 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]    Compiling serde_derive_internals v0.23.0
[INFO] [stderr]    Compiling serde_derive v1.0.37
[INFO] [stderr]    Compiling semver v0.8.0
[INFO] [stderr]    Compiling cargo_metadata v0.3.3
[INFO] [stderr]    Compiling skeptic v0.13.2
[INFO] [stderr]    Compiling assert_cli v0.5.4
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_err` that must be used
[INFO] [stderr]   --> tests/lib.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 | /     assert_cli::Assert::command(&[RARGS, "echo", "{}"])
[INFO] [stderr] 56 | |         .stdin("a\0b")
[INFO] [stderr] 57 | |         .stdout()
[INFO] [stderr] 58 | |         .is("a\0b")
[INFO] [stderr] 59 | |         .execute()
[INFO] [stderr] 60 | |         .is_err();
[INFO] [stderr]    | |__________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you intended to assert that this is err, consider `.unwrap_err()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]extern crate structopt;
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/main.rs:67:1
[INFO] [stderr]    |
[INFO] [stderr] 67 | / lazy_static! {
[INFO] [stderr] 68 | |     static ref CMD_REGEX: Regex = Regex::new(r"\{[[:space:]]*[^{}]*[[:space:]]*\}").unwrap();
[INFO] [stderr] 69 | |
[INFO] [stderr] 70 | |     static ref FIELD_NAMED: Regex = Regex::new(r"^\{[[:space:]]*(?P<name>[[:word:]]*)[[:space:]]*\}$").unwrap();
[INFO] [stderr] 71 | |     static ref FIELD_SINGLE: Regex = Regex::new(r"^\{[[:space:]]*(?P<num>-?\d+)[[:space:]]*\}$").unwrap();
[INFO] [stderr] 72 | |     static ref FIELD_RANGE: Regex = Regex::new(r"^\{(?P<left>-?\d*)?\.\.(?P<right>-?\d*)?(?::(?P<sep>.*))?\}$").unwrap();
[INFO] [stderr] 73 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/main.rs:67:1
[INFO] [stderr]    |
[INFO] [stderr] 67 | / lazy_static! {
[INFO] [stderr] 68 | |     static ref CMD_REGEX: Regex = Regex::new(r"\{[[:space:]]*[^{}]*[[:space:]]*\}").unwrap();
[INFO] [stderr] 69 | |
[INFO] [stderr] 70 | |     static ref FIELD_NAMED: Regex = Regex::new(r"^\{[[:space:]]*(?P<name>[[:word:]]*)[[:space:]]*\}$").unwrap();
[INFO] [stderr] 71 | |     static ref FIELD_SINGLE: Regex = Regex::new(r"^\{[[:space:]]*(?P<num>-?\d+)[[:space:]]*\}$").unwrap();
[INFO] [stderr] 72 | |     static ref FIELD_RANGE: Regex = Regex::new(r"^\{(?P<left>-?\d*)?\.\.(?P<right>-?\d*)?(?::(?P<sep>.*))?\}$").unwrap();
[INFO] [stderr] 73 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/main.rs:67:1
[INFO] [stderr]    |
[INFO] [stderr] 67 | / lazy_static! {
[INFO] [stderr] 68 | |     static ref CMD_REGEX: Regex = Regex::new(r"\{[[:space:]]*[^{}]*[[:space:]]*\}").unwrap();
[INFO] [stderr] 69 | |
[INFO] [stderr] 70 | |     static ref FIELD_NAMED: Regex = Regex::new(r"^\{[[:space:]]*(?P<name>[[:word:]]*)[[:space:]]*\}$").unwrap();
[INFO] [stderr] 71 | |     static ref FIELD_SINGLE: Regex = Regex::new(r"^\{[[:space:]]*(?P<num>-?\d+)[[:space:]]*\}$").unwrap();
[INFO] [stderr] 72 | |     static ref FIELD_RANGE: Regex = Regex::new(r"^\{(?P<left>-?\d*)?\.\.(?P<right>-?\d*)?(?::(?P<sep>.*))?\}$").unwrap();
[INFO] [stderr] 73 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/main.rs:67:1
[INFO] [stderr]    |
[INFO] [stderr] 67 | / lazy_static! {
[INFO] [stderr] 68 | |     static ref CMD_REGEX: Regex = Regex::new(r"\{[[:space:]]*[^{}]*[[:space:]]*\}").unwrap();
[INFO] [stderr] 69 | |
[INFO] [stderr] 70 | |     static ref FIELD_NAMED: Regex = Regex::new(r"^\{[[:space:]]*(?P<name>[[:word:]]*)[[:space:]]*\}$").unwrap();
[INFO] [stderr] 71 | |     static ref FIELD_SINGLE: Regex = Regex::new(r"^\{[[:space:]]*(?P<num>-?\d+)[[:space:]]*\}$").unwrap();
[INFO] [stderr] 72 | |     static ref FIELD_RANGE: Regex = Regex::new(r"^\{(?P<left>-?\d*)?\.\.(?P<right>-?\d*)?(?::(?P<sep>.*))?\}$").unwrap();
[INFO] [stderr] 73 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 59.55s
[INFO] running `"docker" "inspect" "c01117a882f61cb1b8a230d1a6b9457fdbd72ce726fcdc804a74c1c10442985d"`
[INFO] running `"docker" "rm" "-f" "c01117a882f61cb1b8a230d1a6b9457fdbd72ce726fcdc804a74c1c10442985d"`
[INFO] [stdout] c01117a882f61cb1b8a230d1a6b9457fdbd72ce726fcdc804a74c1c10442985d