[INFO] cloning repository https://github.com/ane/feldspar
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ane/feldspar" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fane%2Ffeldspar", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fane%2Ffeldspar'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] be8491af215a99f39087be00a42da9b54aafae9f
[INFO] building ane/feldspar against master#ff34b919075f35a1787659e9c448a34b06bab8de for issue-85264
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fane%2Ffeldspar" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ane/feldspar on toolchain ff34b919075f35a1787659e9c448a34b06bab8de
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ane/feldspar
[INFO] finished tweaking git repo https://github.com/ane/feldspar
[INFO] tweaked toml for git repo https://github.com/ane/feldspar written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/ane/feldspar already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a9676e6049bc6ac78a9dc822a101d8ca6750a9f45767cb9e4db18e405a56a2e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0a9676e6049bc6ac78a9dc822a101d8ca6750a9f45767cb9e4db18e405a56a2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a9676e6049bc6ac78a9dc822a101d8ca6750a9f45767cb9e4db18e405a56a2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a9676e6049bc6ac78a9dc822a101d8ca6750a9f45767cb9e4db18e405a56a2e", kill_on_drop: false }`
[INFO] [stdout] 0a9676e6049bc6ac78a9dc822a101d8ca6750a9f45767cb9e4db18e405a56a2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e14ee2b0527dded73575e90a4fd06209575f2b214c73bd8a225ecf03be8a8b6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7e14ee2b0527dded73575e90a4fd06209575f2b214c73bd8a225ecf03be8a8b6", kill_on_drop: false }`
[INFO] [stderr]    Compiling gcc v0.3.4
[INFO] [stderr]    Compiling regex v0.1.28
[INFO] [stderr]    Compiling libc v0.1.6
[INFO] [stdout] error[E0658]: use of unstable library feature 'pattern': API not fully fleshed out and ready to be stabilized
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-0.1.28/src/re.rs:16:25
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::str::pattern::{Pattern, Searcher, SearchStep};
[INFO] [stdout]    |                         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #27721 <https://github.com/rust-lang/rust/issues/27721> for more information
[INFO] [stdout]    = help: add `#![feature(pattern)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'pattern': API not fully fleshed out and ready to be stabilized
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-0.1.28/src/re.rs:16:34
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::str::pattern::{Pattern, Searcher, SearchStep};
[INFO] [stdout]    |                                  ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #27721 <https://github.com/rust-lang/rust/issues/27721> for more information
[INFO] [stdout]    = help: add `#![feature(pattern)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'pattern': API not fully fleshed out and ready to be stabilized
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-0.1.28/src/re.rs:16:44
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::str::pattern::{Pattern, Searcher, SearchStep};
[INFO] [stdout]    |                                            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #27721 <https://github.com/rust-lang/rust/issues/27721> for more information
[INFO] [stdout]    = help: add `#![feature(pattern)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'pattern': API not fully fleshed out and ready to be stabilized
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-0.1.28/src/re.rs:976:5
[INFO] [stdout]     |
[INFO] [stdout] 976 |     type Searcher = RegexSearcher<'r, 't>;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #27721 <https://github.com/rust-lang/rust/issues/27721> for more information
[INFO] [stdout]     = help: add `#![feature(pattern)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'pattern': API not fully fleshed out and ready to be stabilized
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-0.1.28/src/re.rs:978:5
[INFO] [stdout]     |
[INFO] [stdout] 978 | /     fn into_searcher(self, haystack: &'t str) -> RegexSearcher<'r, 't> {
[INFO] [stdout] 979 | |         RegexSearcher {
[INFO] [stdout] 980 | |             it: self.find_iter(haystack),
[INFO] [stdout] 981 | |             last_step_end: 0,
[INFO] [stdout] 982 | |             next_match: None,
[INFO] [stdout] 983 | |         }
[INFO] [stdout] 984 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #27721 <https://github.com/rust-lang/rust/issues/27721> for more information
[INFO] [stdout]     = help: add `#![feature(pattern)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'pattern': API not fully fleshed out and ready to be stabilized
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-0.1.28/src/re.rs:975:14
[INFO] [stdout]     |
[INFO] [stdout] 975 | impl<'r, 't> Pattern<'t> for &'r Regex {
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #27721 <https://github.com/rust-lang/rust/issues/27721> for more information
[INFO] [stdout]     = help: add `#![feature(pattern)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'pattern': API not fully fleshed out and ready to be stabilized
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-0.1.28/src/re.rs:990:5
[INFO] [stdout]     |
[INFO] [stdout] 990 | /     fn haystack(&self) -> &'t str {
[INFO] [stdout] 991 | |         self.it.search
[INFO] [stdout] 992 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #27721 <https://github.com/rust-lang/rust/issues/27721> for more information
[INFO] [stdout]     = help: add `#![feature(pattern)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'pattern': API not fully fleshed out and ready to be stabilized
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-0.1.28/src/re.rs:995:5
[INFO] [stdout]      |
[INFO] [stdout] 995  | /     fn next(&mut self) -> SearchStep {
[INFO] [stdout] 996  | |         if let Some((s, e)) = self.next_match {
[INFO] [stdout] 997  | |             self.next_match = None;
[INFO] [stdout] 998  | |             self.last_step_end = e;
[INFO] [stdout] ...    |
[INFO] [stdout] 1022 | |         }
[INFO] [stdout] 1023 | |     }
[INFO] [stdout]      | |_____^
[INFO] [stdout]      |
[INFO] [stdout]      = note: see issue #27721 <https://github.com/rust-lang/rust/issues/27721> for more information
[INFO] [stdout]      = help: add `#![feature(pattern)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'pattern': API not fully fleshed out and ready to be stabilized
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-0.1.28/src/re.rs:988:21
[INFO] [stdout]     |
[INFO] [stdout] 988 | unsafe impl<'r, 't> Searcher<'t> for RegexSearcher<'r, 't> {
[INFO] [stdout]     |                     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #27721 <https://github.com/rust-lang/rust/issues/27721> for more information
[INFO] [stdout]     = help: add `#![feature(pattern)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'pattern': API not fully fleshed out and ready to be stabilized
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-0.1.28/src/re.rs:995:27
[INFO] [stdout]     |
[INFO] [stdout] 995 |     fn next(&mut self) -> SearchStep {
[INFO] [stdout]     |                           ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #27721 <https://github.com/rust-lang/rust/issues/27721> for more information
[INFO] [stdout]     = help: add `#![feature(pattern)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'pattern': API not fully fleshed out and ready to be stabilized
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-0.1.28/src/re.rs:999:20
[INFO] [stdout]     |
[INFO] [stdout] 999 |             return SearchStep::Match(s, e);
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #27721 <https://github.com/rust-lang/rust/issues/27721> for more information
[INFO] [stdout]     = help: add `#![feature(pattern)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'pattern': API not fully fleshed out and ready to be stabilized
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-0.1.28/src/re.rs:1006:21
[INFO] [stdout]      |
[INFO] [stdout] 1006 |                     SearchStep::Reject(last, self.haystack().len())
[INFO] [stdout]      |                     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: see issue #27721 <https://github.com/rust-lang/rust/issues/27721> for more information
[INFO] [stdout]      = help: add `#![feature(pattern)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'pattern': API not fully fleshed out and ready to be stabilized
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-0.1.28/src/re.rs:1008:21
[INFO] [stdout]      |
[INFO] [stdout] 1008 |                     SearchStep::Done
[INFO] [stdout]      |                     ^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: see issue #27721 <https://github.com/rust-lang/rust/issues/27721> for more information
[INFO] [stdout]      = help: add `#![feature(pattern)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'pattern': API not fully fleshed out and ready to be stabilized
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-0.1.28/src/re.rs:1014:21
[INFO] [stdout]      |
[INFO] [stdout] 1014 |                     SearchStep::Match(s, e)
[INFO] [stdout]      |                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: see issue #27721 <https://github.com/rust-lang/rust/issues/27721> for more information
[INFO] [stdout]      = help: add `#![feature(pattern)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'pattern': API not fully fleshed out and ready to be stabilized
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-0.1.28/src/re.rs:1019:21
[INFO] [stdout]      |
[INFO] [stdout] 1019 |                     SearchStep::Reject(last, s)
[INFO] [stdout]      |                     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: see issue #27721 <https://github.com/rust-lang/rust/issues/27721> for more information
[INFO] [stdout]      = help: add `#![feature(pattern)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'pattern': API not fully fleshed out and ready to be stabilized
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-0.1.28/src/re.rs:1003:46
[INFO] [stdout]      |
[INFO] [stdout] 1003 |                 if self.last_step_end < self.haystack().len() {
[INFO] [stdout]      |                                              ^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: see issue #27721 <https://github.com/rust-lang/rust/issues/27721> for more information
[INFO] [stdout]      = help: add `#![feature(pattern)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'pattern': API not fully fleshed out and ready to be stabilized
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-0.1.28/src/re.rs:1005:47
[INFO] [stdout]      |
[INFO] [stdout] 1005 |                     self.last_step_end = self.haystack().len();
[INFO] [stdout]      |                                               ^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: see issue #27721 <https://github.com/rust-lang/rust/issues/27721> for more information
[INFO] [stdout]      = help: add `#![feature(pattern)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'pattern': API not fully fleshed out and ready to be stabilized
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-0.1.28/src/re.rs:1006:51
[INFO] [stdout]      |
[INFO] [stdout] 1006 |                     SearchStep::Reject(last, self.haystack().len())
[INFO] [stdout]      |                                                   ^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: see issue #27721 <https://github.com/rust-lang/rust/issues/27721> for more information
[INFO] [stdout]      = help: add `#![feature(pattern)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 18 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `regex`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "7e14ee2b0527dded73575e90a4fd06209575f2b214c73bd8a225ecf03be8a8b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e14ee2b0527dded73575e90a4fd06209575f2b214c73bd8a225ecf03be8a8b6", kill_on_drop: false }`
[INFO] [stdout] 7e14ee2b0527dded73575e90a4fd06209575f2b214c73bd8a225ecf03be8a8b6
