[INFO] crate cronparse 0.5.1 is already in cache
[INFO] extracting crate cronparse 0.5.1 into work/ex/clippy-test-run/sources/stable/reg/cronparse/0.5.1
[INFO] extracting crate cronparse 0.5.1 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/cronparse/0.5.1
[INFO] validating manifest of cronparse-0.5.1 on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cronparse-0.5.1 on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing cronparse-0.5.1
[INFO] finished frobbing cronparse-0.5.1
[INFO] frobbed toml for cronparse-0.5.1 written to work/ex/clippy-test-run/sources/stable/reg/cronparse/0.5.1/Cargo.toml
[INFO] started frobbing cronparse-0.5.1
[INFO] finished frobbing cronparse-0.5.1
[INFO] frobbed toml for cronparse-0.5.1 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/cronparse/0.5.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting cronparse-0.5.1 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-0/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/cronparse/0.5.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 11d91630ca81ffe258e7c440768ae8436251f039c46e2f7ab2c1fd27dc5c31d7
[INFO] running `"docker" "start" "-a" "11d91630ca81ffe258e7c440768ae8436251f039c46e2f7ab2c1fd27dc5c31d7"`
[INFO] [stderr]     Checking skeptic v0.5.0
[INFO] [stderr]    Compiling cronparse v0.5.1 (/opt/crater/workdir)
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/crontab.rs:149:9
[INFO] [stderr]     |
[INFO] [stderr] 149 | /         if value.len() > 1 {
[INFO] [stderr] 150 | |             if &value[..1] == "'" || &value[..1] == "\"" && &value[..1] == &value[value.len()-1..] {
[INFO] [stderr] 151 | |                 value = &value[1..value.len()-1];
[INFO] [stderr] 152 | |             }
[INFO] [stderr] 153 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 149 |         if value.len() > 1 && (&value[..1] == "'" || &value[..1] == "\"" && &value[..1] == &value[value.len()-1..]) {
[INFO] [stderr] 150 |     value = &value[1..value.len()-1];
[INFO] [stderr] 151 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
[INFO] [stderr]  --> src/schedule.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::ascii::AsciiExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/crontab.rs:149:9
[INFO] [stderr]     |
[INFO] [stderr] 149 | /         if value.len() > 1 {
[INFO] [stderr] 150 | |             if &value[..1] == "'" || &value[..1] == "\"" && &value[..1] == &value[value.len()-1..] {
[INFO] [stderr] 151 | |                 value = &value[1..value.len()-1];
[INFO] [stderr] 152 | |             }
[INFO] [stderr] 153 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 149 |         if value.len() > 1 && (&value[..1] == "'" || &value[..1] == "\"" && &value[..1] == &value[value.len()-1..]) {
[INFO] [stderr] 150 |     value = &value[1..value.len()-1];
[INFO] [stderr] 151 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
[INFO] [stderr]  --> src/schedule.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::ascii::AsciiExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stderr]  --> src/schedule.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::ascii::AsciiExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `FromIterator`
[INFO] [stderr]  --> src/schedule.rs:8:17
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::iter::{FromIterator, IntoIterator, Iterator};
[INFO] [stderr]   |                 ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter::FromIterator`
[INFO] [stderr]  --> src/crontab.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::iter::FromIterator;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stderr]  --> src/schedule.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::ascii::AsciiExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `FromIterator`
[INFO] [stderr]  --> src/schedule.rs:8:17
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::iter::{FromIterator, IntoIterator, Iterator};
[INFO] [stderr]   |                 ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter::FromIterator`
[INFO] [stderr]  --> src/crontab.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::iter::FromIterator;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: defining a method called `from_iter` on this type; consider implementing the `std::iter::FromIterator` trait or choosing a less ambiguous name
[INFO] [stderr]    --> src/schedule.rs:137:5
[INFO] [stderr]     |
[INFO] [stderr] 137 | /     pub fn from_iter<'a, I>(mut parts: I) -> Result<Calendar, CalendarParseError> where I: Iterator<Item=&'a str> {
[INFO] [stderr] 138 | |         Ok(Calendar {
[INFO] [stderr] 139 | |             mins: parse_cron_rec_field!(parts, MissingMinutes, Minutes),
[INFO] [stderr] 140 | |             hrs: parse_cron_rec_field!(parts, MissingHours, Hours),
[INFO] [stderr] ...   |
[INFO] [stderr] 144 | |         })
[INFO] [stderr] 145 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::should_implement_trait)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#should_implement_trait
[INFO] [stderr] 
[INFO] [stderr] warning: the `r @ _` pattern can be written as just `r`
[INFO] [stderr]    --> src/schedule.rs:217:13
[INFO] [stderr]     |
[INFO] [stderr] 217 |             r @ _ if r.starts_with("@") => return Err(PeriodParseError::UnknownPeriod),
[INFO] [stderr]     |             ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_pattern)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/schedule.rs:217:36
[INFO] [stderr]     |
[INFO] [stderr] 217 |             r @ _ if r.starts_with("@") => return Err(PeriodParseError::UnknownPeriod),
[INFO] [stderr]     |                                    ^^^ help: try using a char instead: `'@'`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: defining a method called `from_iter` on this type; consider implementing the `std::iter::FromIterator` trait or choosing a less ambiguous name
[INFO] [stderr]    --> src/schedule.rs:137:5
[INFO] [stderr]     |
[INFO] [stderr] 137 | /     pub fn from_iter<'a, I>(mut parts: I) -> Result<Calendar, CalendarParseError> where I: Iterator<Item=&'a str> {
[INFO] [stderr] 138 | |         Ok(Calendar {
[INFO] [stderr] 139 | |             mins: parse_cron_rec_field!(parts, MissingMinutes, Minutes),
[INFO] [stderr] 140 | |             hrs: parse_cron_rec_field!(parts, MissingHours, Hours),
[INFO] [stderr] ...   |
[INFO] [stderr] 144 | |         })
[INFO] [stderr] 145 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::should_implement_trait)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#should_implement_trait
[INFO] [stderr] 
[INFO] [stderr] warning: the `r @ _` pattern can be written as just `r`
[INFO] [stderr]    --> src/schedule.rs:217:13
[INFO] [stderr]     |
[INFO] [stderr] 217 |             r @ _ if r.starts_with("@") => return Err(PeriodParseError::UnknownPeriod),
[INFO] [stderr]     |             ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_pattern)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/schedule.rs:217:36
[INFO] [stderr]     |
[INFO] [stderr] 217 |             r @ _ if r.starts_with("@") => return Err(PeriodParseError::UnknownPeriod),
[INFO] [stderr]     |                                    ^^^ help: try using a char instead: `'@'`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/schedule.rs:498:26
[INFO] [stderr]     |
[INFO] [stderr] 498 |         if s.starts_with("@") {
[INFO] [stderr]     |                          ^^^ help: try using a char instead: `'@'`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: defining a method called `from_iter` on this type; consider implementing the `std::iter::FromIterator` trait or choosing a less ambiguous name
[INFO] [stderr]    --> src/schedule.rs:507:5
[INFO] [stderr]     |
[INFO] [stderr] 507 | /     pub fn from_iter<'a, I>(iter: I) -> Result<Schedule, ScheduleParseError> where I: Iterator<Item=&'a str> {
[INFO] [stderr] 508 | |         let mut it = iter.into_iter().peekable();
[INFO] [stderr] 509 | |         let is_period = match it.peek() {
[INFO] [stderr] 510 | |             None => return Err(ScheduleParseError::MissingSchedule),
[INFO] [stderr] ...   |
[INFO] [stderr] 518 | |         }
[INFO] [stderr] 519 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#should_implement_trait
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]    --> src/schedule.rs:508:22
[INFO] [stderr]     |
[INFO] [stderr] 508 |         let mut it = iter.into_iter().peekable();
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^ help: consider removing `.into_iter()`: `iter`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::identity_conversion)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/schedule.rs:511:38
[INFO] [stderr]     |
[INFO] [stderr] 511 |             Some(s) => s.starts_with("@")
[INFO] [stderr]     |                                      ^^^ help: try using a char instead: `'@'`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/schedule.rs:498:26
[INFO] [stderr]     |
[INFO] [stderr] 498 |         if s.starts_with("@") {
[INFO] [stderr]     |                          ^^^ help: try using a char instead: `'@'`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: defining a method called `from_iter` on this type; consider implementing the `std::iter::FromIterator` trait or choosing a less ambiguous name
[INFO] [stderr]    --> src/schedule.rs:507:5
[INFO] [stderr]     |
[INFO] [stderr] 507 | /     pub fn from_iter<'a, I>(iter: I) -> Result<Schedule, ScheduleParseError> where I: Iterator<Item=&'a str> {
[INFO] [stderr] 508 | |         let mut it = iter.into_iter().peekable();
[INFO] [stderr] 509 | |         let is_period = match it.peek() {
[INFO] [stderr] 510 | |             None => return Err(ScheduleParseError::MissingSchedule),
[INFO] [stderr] ...   |
[INFO] [stderr] 518 | |         }
[INFO] [stderr] 519 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#should_implement_trait
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]    --> src/schedule.rs:508:22
[INFO] [stderr]     |
[INFO] [stderr] 508 |         let mut it = iter.into_iter().peekable();
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^ help: consider removing `.into_iter()`: `iter`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::identity_conversion)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/schedule.rs:511:38
[INFO] [stderr]     |
[INFO] [stderr] 511 |             Some(s) => s.starts_with("@")
[INFO] [stderr]     |                                      ^^^ help: try using a char instead: `'@'`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]   --> src/crontab.rs:78:5
[INFO] [stderr]    |
[INFO] [stderr] 78 | /     pub fn period<'a>(&'a self) -> Option<&'a Period> {
[INFO] [stderr] 79 | |         match *self {
[INFO] [stderr] 80 | |             CrontabEntry::Anacron(AnacrontabEntry { ref period, .. }) => Some(period),
[INFO] [stderr] 81 | |             CrontabEntry::User(UserCrontabEntry { sched: Schedule::Period(ref period), .. }) => Some(period),
[INFO] [stderr] ...  |
[INFO] [stderr] 84 | |         }
[INFO] [stderr] 85 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_lifetimes)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]   --> src/crontab.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 | /     pub fn calendar<'a>(&'a self) -> Option<&'a Calendar> {
[INFO] [stderr] 88 | |         match *self {
[INFO] [stderr] 89 | |             CrontabEntry::User(UserCrontabEntry { sched: Schedule::Calendar(ref cal), .. }) => Some(cal),
[INFO] [stderr] 90 | |             CrontabEntry::System(SystemCrontabEntry { sched: Schedule::Calendar(ref cal), .. }) => Some(cal),
[INFO] [stderr] 91 | |             _ => None
[INFO] [stderr] 92 | |         }
[INFO] [stderr] 93 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/crontab.rs:95:5
[INFO] [stderr]     |
[INFO] [stderr] 95  | /     pub fn command<'a>(&'a self) -> Option<&'a str> {
[INFO] [stderr] 96  | |         match *self {
[INFO] [stderr] 97  | |             CrontabEntry::User(UserCrontabEntry { ref cmd, .. }) => Some(&**cmd),
[INFO] [stderr] 98  | |             CrontabEntry::System(SystemCrontabEntry { ref cmd, .. }) => Some(&**cmd),
[INFO] [stderr] ...   |
[INFO] [stderr] 101 | |         }
[INFO] [stderr] 102 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/crontab.rs:104:5
[INFO] [stderr]     |
[INFO] [stderr] 104 | /     pub fn user<'a>(&'a self) -> Option<&'a str> {
[INFO] [stderr] 105 | |         match *self {
[INFO] [stderr] 106 | |             CrontabEntry::System(SystemCrontabEntry { user: UserInfo(ref user, _, _), .. }) => Some(&**user),
[INFO] [stderr] 107 | |             _ => None
[INFO] [stderr] 108 | |         }
[INFO] [stderr] 109 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/crontab.rs:111:5
[INFO] [stderr]     |
[INFO] [stderr] 111 | /     pub fn group<'a>(&'a self) -> Option<&'a str> {
[INFO] [stderr] 112 | |         match *self {
[INFO] [stderr] 113 | |             CrontabEntry::System(SystemCrontabEntry { user: UserInfo(_, Some(ref group), _), .. }) => Some(&**group),
[INFO] [stderr] 114 | |             _ => None
[INFO] [stderr] 115 | |         }
[INFO] [stderr] 116 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/crontab.rs:136:12
[INFO] [stderr]     |
[INFO] [stderr] 136 |         if name.len() == 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `name.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: needlessly taken reference of both operands
[INFO] [stderr]    --> src/crontab.rs:150:61
[INFO] [stderr]     |
[INFO] [stderr] 150 |             if &value[..1] == "'" || &value[..1] == "\"" && &value[..1] == &value[value.len()-1..] {
[INFO] [stderr]     |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::op_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[INFO] [stderr] help: use the values directly
[INFO] [stderr]     |
[INFO] [stderr] 150 |             if &value[..1] == "'" || &value[..1] == "\"" && value[..1] == value[value.len()-1..] {
[INFO] [stderr]     |                                                             ^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]   --> src/crontab.rs:78:5
[INFO] [stderr]    |
[INFO] [stderr] 78 | /     pub fn period<'a>(&'a self) -> Option<&'a Period> {
[INFO] [stderr] 79 | |         match *self {
[INFO] [stderr] 80 | |             CrontabEntry::Anacron(AnacrontabEntry { ref period, .. }) => Some(period),
[INFO] [stderr] 81 | |             CrontabEntry::User(UserCrontabEntry { sched: Schedule::Period(ref period), .. }) => Some(period),
[INFO] [stderr] ...  |
[INFO] [stderr] 84 | |         }
[INFO] [stderr] 85 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_lifetimes)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]   --> src/crontab.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 | /     pub fn calendar<'a>(&'a self) -> Option<&'a Calendar> {
[INFO] [stderr] 88 | |         match *self {
[INFO] [stderr] 89 | |             CrontabEntry::User(UserCrontabEntry { sched: Schedule::Calendar(ref cal), .. }) => Some(cal),
[INFO] [stderr] 90 | |             CrontabEntry::System(SystemCrontabEntry { sched: Schedule::Calendar(ref cal), .. }) => Some(cal),
[INFO] [stderr] 91 | |             _ => None
[INFO] [stderr] 92 | |         }
[INFO] [stderr] 93 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/crontab.rs:95:5
[INFO] [stderr]     |
[INFO] [stderr] 95  | /     pub fn command<'a>(&'a self) -> Option<&'a str> {
[INFO] [stderr] 96  | |         match *self {
[INFO] [stderr] 97  | |             CrontabEntry::User(UserCrontabEntry { ref cmd, .. }) => Some(&**cmd),
[INFO] [stderr] 98  | |             CrontabEntry::System(SystemCrontabEntry { ref cmd, .. }) => Some(&**cmd),
[INFO] [stderr] ...   |
[INFO] [stderr] 101 | |         }
[INFO] [stderr] 102 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/crontab.rs:104:5
[INFO] [stderr]     |
[INFO] [stderr] 104 | /     pub fn user<'a>(&'a self) -> Option<&'a str> {
[INFO] [stderr] 105 | |         match *self {
[INFO] [stderr] 106 | |             CrontabEntry::System(SystemCrontabEntry { user: UserInfo(ref user, _, _), .. }) => Some(&**user),
[INFO] [stderr] 107 | |             _ => None
[INFO] [stderr] 108 | |         }
[INFO] [stderr] 109 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/crontab.rs:111:5
[INFO] [stderr]     |
[INFO] [stderr] 111 | /     pub fn group<'a>(&'a self) -> Option<&'a str> {
[INFO] [stderr] 112 | |         match *self {
[INFO] [stderr] 113 | |             CrontabEntry::System(SystemCrontabEntry { user: UserInfo(_, Some(ref group), _), .. }) => Some(&**group),
[INFO] [stderr] 114 | |             _ => None
[INFO] [stderr] 115 | |         }
[INFO] [stderr] 116 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/crontab.rs:136:12
[INFO] [stderr]     |
[INFO] [stderr] 136 |         if name.len() == 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `name.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: needlessly taken reference of both operands
[INFO] [stderr]    --> src/crontab.rs:150:61
[INFO] [stderr]     |
[INFO] [stderr] 150 |             if &value[..1] == "'" || &value[..1] == "\"" && &value[..1] == &value[value.len()-1..] {
[INFO] [stderr]     |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::op_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[INFO] [stderr] help: use the values directly
[INFO] [stderr]     |
[INFO] [stderr] 150 |             if &value[..1] == "'" || &value[..1] == "\"" && value[..1] == value[value.len()-1..] {
[INFO] [stderr]     |                                                             ^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/lib.rs:109:24
[INFO] [stderr]     |
[INFO] [stderr] 109 |                     if line.len() == 0 || line.starts_with("#") || line.chars().all(|c| c == ' ' || c == '\t') {
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `line.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/lib.rs:109:60
[INFO] [stderr]     |
[INFO] [stderr] 109 |                     if line.len() == 0 || line.starts_with("#") || line.chars().all(|c| c == ' ' || c == '\t') {
[INFO] [stderr]     |                                                            ^^^ help: try using a char instead: `'#'`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/lib.rs:109:24
[INFO] [stderr]     |
[INFO] [stderr] 109 |                     if line.len() == 0 || line.starts_with("#") || line.chars().all(|c| c == ' ' || c == '\t') {
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `line.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/lib.rs:109:60
[INFO] [stderr]     |
[INFO] [stderr] 109 |                     if line.len() == 0 || line.starts_with("#") || line.chars().all(|c| c == ' ' || c == '\t') {
[INFO] [stderr]     |                                                            ^^^ help: try using a char instead: `'#'`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> /opt/crater/target/debug/build/cronparse-00d820c9d9d94e1e/out/skeptic-tests.rs:4:9
[INFO] [stderr]    |
[INFO] [stderr] 4  |       let ref s = format!("{}", r####"extern crate cronparse;
[INFO] [stderr]    |  _____-   ^^^^^
[INFO] [stderr] 5  | |
[INFO] [stderr] 6  | | use cronparse::crontab::UserCrontabEntry;
[INFO] [stderr] 7  | | use cronparse::CrontabFile;
[INFO] [stderr] ...  |
[INFO] [stderr] 14 | | }
[INFO] [stderr] 15 | | "####);
[INFO] [stderr]    | |_______- help: try: `let s = &$ crate :: fmt :: format ( format_args ! ( $ ( $ arg ) * ) );`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> /opt/crater/target/debug/build/cronparse-00d820c9d9d94e1e/out/skeptic-tests.rs:4:17
[INFO] [stderr]    |
[INFO] [stderr] 4  |       let ref s = format!("{}", r####"extern crate cronparse;
[INFO] [stderr]    |  _________________^
[INFO] [stderr] 5  | |
[INFO] [stderr] 6  | | use cronparse::crontab::UserCrontabEntry;
[INFO] [stderr] 7  | | use cronparse::CrontabFile;
[INFO] [stderr] ...  |
[INFO] [stderr] 14 | | }
[INFO] [stderr] 15 | | "####);
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::useless_format)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] help: consider using .to_string()
[INFO] [stderr]    |
[INFO] [stderr] 2  | $ crate :: fmt :: format ( r####"extern crate cronparse;
[INFO] [stderr] 3  | 
[INFO] [stderr] 4  | use cronparse::crontab::UserCrontabEntry;
[INFO] [stderr] 5  | use cronparse::CrontabFile;
[INFO] [stderr] 6  | 
[INFO] [stderr] 7  | fn main() {
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.76s
[INFO] running `"docker" "inspect" "11d91630ca81ffe258e7c440768ae8436251f039c46e2f7ab2c1fd27dc5c31d7"`
[INFO] running `"docker" "rm" "-f" "11d91630ca81ffe258e7c440768ae8436251f039c46e2f7ab2c1fd27dc5c31d7"`
[INFO] [stdout] 11d91630ca81ffe258e7c440768ae8436251f039c46e2f7ab2c1fd27dc5c31d7