[INFO] updating cached repository kentfredric/grease
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kentfredric/grease
[INFO] [stderr]  * branch              HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kentfredric/grease" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/kentfredric/grease"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/kentfredric/grease'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kentfredric/grease" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/kentfredric/grease"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/kentfredric/grease'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a80fc8748b855a4aa76041ca2db727f805de9b69
[INFO] sha for GitHub repo kentfredric/grease: a80fc8748b855a4aa76041ca2db727f805de9b69
[INFO] validating manifest of kentfredric/grease on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of kentfredric/grease on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing kentfredric/grease
[INFO] finished frobbing kentfredric/grease
[INFO] frobbed toml for kentfredric/grease written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/kentfredric/grease/Cargo.toml
[INFO] started frobbing kentfredric/grease
[INFO] finished frobbing kentfredric/grease
[INFO] frobbed toml for kentfredric/grease written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/kentfredric/grease/Cargo.toml
[INFO] crate kentfredric/grease already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking kentfredric/grease against master#e305df1846a6d985315917ae0c81b74af8b4e641 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-7/master#e305df1846a6d985315917ae0c81b74af8b4e641:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/kentfredric/grease:/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" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 616bb0253dcb81ce2dc81469acfa2c6ce5f2646435b799c179830be8fd64de23
[INFO] running `"docker" "start" "-a" "616bb0253dcb81ce2dc81469acfa2c6ce5f2646435b799c179830be8fd64de23"`
[INFO] [stderr]     Checking once_cell v0.1.8
[INFO] [stderr]     Checking criterion-plot v0.3.0
[INFO] [stderr]     Checking tinytemplate v1.0.1
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking regex v1.1.2
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking grease v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Checking criterion v0.2.10
[INFO] [stderr] warning: variant is never constructed: `Item`
[INFO] [stderr]   --> src/atom/atomspecgroup.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Item(Box<AtomSpec>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Group`
[INFO] [stderr]   --> src/atom/atomspecgroup.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Group(Box<AtomSpecGroup>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `None`
[INFO] [stderr]   --> src/atom/atomspecgroup.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     None,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Or`
[INFO] [stderr]   --> src/atom/atomspecgroup.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     Or,
[INFO] [stderr]    |     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `IfUse`
[INFO] [stderr]   --> src/atom/atomspecgroup.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     IfUse(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `IfNotUse`
[INFO] [stderr]   --> src/atom/atomspecgroup.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     IfNotUse(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `push`
[INFO] [stderr]   --> src/atom/atomspecgroup.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     fn push(&mut self, i: MemberType) { self.members.push(i) }
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `push_atomspec`
[INFO] [stderr]   --> src/atom/atomspecgroup.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub(crate) fn push_atomspec(&mut self, i: AtomSpec) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `push_group`
[INFO] [stderr]   --> src/atom/atomspecgroup.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub(crate) fn push_group(&mut self, i: AtomSpecGroup) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `SLOT_NAME`
[INFO] [stderr]   --> src/atom/regex.rs:34:1
[INFO] [stderr]    |
[INFO] [stderr] 34 | / pub(crate) static SLOT_NAME: Lazy<Regex> = sync_lazy! {
[INFO] [stderr] 35 | |     use super::rule::SLOT;
[INFO] [stderr] 36 | |     Regex::new(&SLOT).unwrap()
[INFO] [stderr] 37 | | };
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `USE_FLAG_NAME`
[INFO] [stderr]   --> src/atom/regex.rs:46:1
[INFO] [stderr]    |
[INFO] [stderr] 46 | / pub(crate) static USE_FLAG_NAME: Lazy<Regex> = sync_lazy! {
[INFO] [stderr] 47 | |     use super::rule::USE_FLAG;
[INFO] [stderr] 48 | |     Regex::new(&USE_FLAG).unwrap()
[INFO] [stderr] 49 | | };
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `VERSION`
[INFO] [stderr]   --> src/atom/regex.rs:55:1
[INFO] [stderr]    |
[INFO] [stderr] 55 | / pub(crate) static VERSION: Lazy<Regex> = sync_lazy! {
[INFO] [stderr] 56 | |     use super::rule::VERSION;
[INFO] [stderr] 57 | |     RegexBuilder::new(&VERSION).ignore_whitespace(true).build().unwrap()
[INFO] [stderr] 58 | | };
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `ATOM_SPEC`
[INFO] [stderr]   --> src/atom/regex.rs:70:1
[INFO] [stderr]    |
[INFO] [stderr] 70 | / pub(crate) static ATOM_SPEC: Lazy<Regex> = sync_lazy! {
[INFO] [stderr] 71 | |     use super::rule::ATOM_SPEC_PARSE;
[INFO] [stderr] 72 | |     RegexBuilder::new(&ATOM_SPEC_PARSE).ignore_whitespace(true).build().unwrap()
[INFO] [stderr] 73 | | };
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `SLOT`
[INFO] [stderr]   --> src/atom/rule.rs:55:1
[INFO] [stderr]    |
[INFO] [stderr] 55 | / pub(crate) static SLOT: Lazy<String> =
[INFO] [stderr] 56 | |     sync_lazy! {     format!("^{}$", SLOT_PART)     };
[INFO] [stderr]    | |______________________________________________________^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `USE_FLAG`
[INFO] [stderr]   --> src/atom/rule.rs:57:1
[INFO] [stderr]    |
[INFO] [stderr] 57 | / pub(crate) static USE_FLAG: Lazy<String> =
[INFO] [stderr] 58 | |     sync_lazy! { format!("^{}$", USE_FLAG_PART) };
[INFO] [stderr]    | |__________________________________________________^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `VERSION`
[INFO] [stderr]   --> src/atom/rule.rs:59:1
[INFO] [stderr]    |
[INFO] [stderr] 59 | / pub(crate) static VERSION: Lazy<String> =
[INFO] [stderr] 60 | |     sync_lazy! {  format!("^{}{}?$", VERSION_PART, VERSION_REVISION_SUFFIX )};
[INFO] [stderr]    | |______________________________________________________________________________^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `ATOM_SPEC_PARSE`
[INFO] [stderr]    --> src/atom/rule.rs:130:1
[INFO] [stderr]     |
[INFO] [stderr] 130 | / pub(crate) static ATOM_SPEC_PARSE: Lazy<String> = sync_lazy! {
[INFO] [stderr] 131 | |     let op   = format!("(?P<operator>{operator})",
[INFO] [stderr] 132 | |         operator = &DEP_OPERATOR
[INFO] [stderr] 133 | |     );
[INFO] [stderr] ...   |
[INFO] [stderr] 168 | |     )
[INFO] [stderr] 169 | | };
[INFO] [stderr]     | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `push`
[INFO] [stderr]   --> src/atom/atomspecgroup.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     fn push(&mut self, i: MemberType) { self.members.push(i) }
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `push_atomspec`
[INFO] [stderr]   --> src/atom/atomspecgroup.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub(crate) fn push_atomspec(&mut self, i: AtomSpec) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `push_group`
[INFO] [stderr]   --> src/atom/atomspecgroup.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub(crate) fn push_group(&mut self, i: AtomSpecGroup) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `SLOT_NAME`
[INFO] [stderr]   --> src/atom/regex.rs:34:1
[INFO] [stderr]    |
[INFO] [stderr] 34 | / pub(crate) static SLOT_NAME: Lazy<Regex> = sync_lazy! {
[INFO] [stderr] 35 | |     use super::rule::SLOT;
[INFO] [stderr] 36 | |     Regex::new(&SLOT).unwrap()
[INFO] [stderr] 37 | | };
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `USE_FLAG_NAME`
[INFO] [stderr]   --> src/atom/regex.rs:46:1
[INFO] [stderr]    |
[INFO] [stderr] 46 | / pub(crate) static USE_FLAG_NAME: Lazy<Regex> = sync_lazy! {
[INFO] [stderr] 47 | |     use super::rule::USE_FLAG;
[INFO] [stderr] 48 | |     Regex::new(&USE_FLAG).unwrap()
[INFO] [stderr] 49 | | };
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `VERSION`
[INFO] [stderr]   --> src/atom/regex.rs:55:1
[INFO] [stderr]    |
[INFO] [stderr] 55 | / pub(crate) static VERSION: Lazy<Regex> = sync_lazy! {
[INFO] [stderr] 56 | |     use super::rule::VERSION;
[INFO] [stderr] 57 | |     RegexBuilder::new(&VERSION).ignore_whitespace(true).build().unwrap()
[INFO] [stderr] 58 | | };
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `ATOM_SPEC`
[INFO] [stderr]   --> src/atom/regex.rs:70:1
[INFO] [stderr]    |
[INFO] [stderr] 70 | / pub(crate) static ATOM_SPEC: Lazy<Regex> = sync_lazy! {
[INFO] [stderr] 71 | |     use super::rule::ATOM_SPEC_PARSE;
[INFO] [stderr] 72 | |     RegexBuilder::new(&ATOM_SPEC_PARSE).ignore_whitespace(true).build().unwrap()
[INFO] [stderr] 73 | | };
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `SLOT`
[INFO] [stderr]   --> src/atom/rule.rs:55:1
[INFO] [stderr]    |
[INFO] [stderr] 55 | / pub(crate) static SLOT: Lazy<String> =
[INFO] [stderr] 56 | |     sync_lazy! {     format!("^{}$", SLOT_PART)     };
[INFO] [stderr]    | |______________________________________________________^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `USE_FLAG`
[INFO] [stderr]   --> src/atom/rule.rs:57:1
[INFO] [stderr]    |
[INFO] [stderr] 57 | / pub(crate) static USE_FLAG: Lazy<String> =
[INFO] [stderr] 58 | |     sync_lazy! { format!("^{}$", USE_FLAG_PART) };
[INFO] [stderr]    | |__________________________________________________^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `VERSION`
[INFO] [stderr]   --> src/atom/rule.rs:59:1
[INFO] [stderr]    |
[INFO] [stderr] 59 | / pub(crate) static VERSION: Lazy<String> =
[INFO] [stderr] 60 | |     sync_lazy! {  format!("^{}{}?$", VERSION_PART, VERSION_REVISION_SUFFIX )};
[INFO] [stderr]    | |______________________________________________________________________________^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `ATOM_SPEC_PARSE`
[INFO] [stderr]    --> src/atom/rule.rs:130:1
[INFO] [stderr]     |
[INFO] [stderr] 130 | / pub(crate) static ATOM_SPEC_PARSE: Lazy<String> = sync_lazy! {
[INFO] [stderr] 131 | |     let op   = format!("(?P<operator>{operator})",
[INFO] [stderr] 132 | |         operator = &DEP_OPERATOR
[INFO] [stderr] 133 | |     );
[INFO] [stderr] ...   |
[INFO] [stderr] 168 | |     )
[INFO] [stderr] 169 | | };
[INFO] [stderr]     | |__^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.81s
[INFO] running `"docker" "inspect" "616bb0253dcb81ce2dc81469acfa2c6ce5f2646435b799c179830be8fd64de23"`
[INFO] running `"docker" "rm" "-f" "616bb0253dcb81ce2dc81469acfa2c6ce5f2646435b799c179830be8fd64de23"`
[INFO] [stdout] 616bb0253dcb81ce2dc81469acfa2c6ce5f2646435b799c179830be8fd64de23