[INFO] cloning repository https://github.com/jessegrosjean/libripgrep_example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jessegrosjean/libripgrep_example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjessegrosjean%2Flibripgrep_example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjessegrosjean%2Flibripgrep_example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1ef008fc9f8949415e275aac61f77baf9ac46f71
[INFO] checking jessegrosjean/libripgrep_example against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjessegrosjean%2Flibripgrep_example" "/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/jessegrosjean/libripgrep_example on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jessegrosjean/libripgrep_example
[INFO] removed path dependency grep from git repo https://github.com/jessegrosjean/libripgrep_example
[INFO] removed path dependency grep-matcher from git repo https://github.com/jessegrosjean/libripgrep_example
[INFO] removed path dependency grep-regex from git repo https://github.com/jessegrosjean/libripgrep_example
[INFO] removed path dependency grep-searcher from git repo https://github.com/jessegrosjean/libripgrep_example
[INFO] removed path dependency ignore from git repo https://github.com/jessegrosjean/libripgrep_example
[INFO] finished tweaking git repo https://github.com/jessegrosjean/libripgrep_example
[INFO] tweaked toml for git repo https://github.com/jessegrosjean/libripgrep_example written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/jessegrosjean/libripgrep_example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-12/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded grep-regex v0.1.8
[INFO] [stderr]   Downloaded grep-cli v0.1.5
[INFO] [stderr]   Downloaded grep v0.2.7
[INFO] [stderr]   Downloaded bytecount v0.6.0
[INFO] [stderr]   Downloaded grep-printer v0.1.5
[INFO] [stderr]   Downloaded packed_simd v0.3.3
[INFO] [stderr]   Downloaded grep-matcher v0.1.4
[INFO] [stderr]   Downloaded encoding_rs_io v0.1.7
[INFO] [stderr]   Downloaded grep-searcher v0.1.7
[INFO] [stderr]   Downloaded grep-regex v0.0.1
[INFO] [stderr]   Downloaded grep-searcher v0.0.1
[INFO] [stderr]   Downloaded grep-matcher v0.0.1
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5a06de2a218ec0fc3b22003af7066d076caf058487342f7b5aeefded063ed7b2
[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" "5a06de2a218ec0fc3b22003af7066d076caf058487342f7b5aeefded063ed7b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a06de2a218ec0fc3b22003af7066d076caf058487342f7b5aeefded063ed7b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a06de2a218ec0fc3b22003af7066d076caf058487342f7b5aeefded063ed7b2", kill_on_drop: false }`
[INFO] [stdout] 5a06de2a218ec0fc3b22003af7066d076caf058487342f7b5aeefded063ed7b2
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a55472fc79cf3c21783f553f7f6db43da7d49cfe7042aa56ec18664b87a8f67e
[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" "a55472fc79cf3c21783f553f7f6db43da7d49cfe7042aa56ec18664b87a8f67e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling encoding_rs v0.8.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling serde_json v1.0.58
[INFO] [stderr]     Checking bytecount v0.6.0
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking grep-searcher v0.0.1
[INFO] [stderr]     Checking grep-matcher v0.0.1
[INFO] [stderr]     Checking grep-regex v0.0.1
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking grep-matcher v0.1.4
[INFO] [stderr]     Checking crossbeam-epoch v0.6.1
[INFO] [stderr]     Checking crossbeam-epoch v0.5.2
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking crossbeam-deque v0.5.2
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling syn v1.0.43
[INFO] [stderr]     Checking encoding_rs_io v0.1.7
[INFO] [stderr]     Checking grep-searcher v0.1.7
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking crossbeam-channel v0.2.6
[INFO] [stderr]     Checking crossbeam v0.4.1
[INFO] [stderr]     Checking globset v0.4.5
[INFO] [stderr]     Checking grep-regex v0.1.8
[INFO] [stderr]     Checking grep-cli v0.1.5
[INFO] [stderr]     Checking ignore v0.4.16
[INFO] [stderr]     Checking grep-printer v0.1.5
[INFO] [stderr]     Checking grep v0.2.7
[INFO] [stderr]     Checking libripgrep_example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `grep_regex::RegexMatcher`
[INFO] [stdout]   --> src/main.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | use grep_regex::RegexMatcher;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^ no `RegexMatcher` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `grep_matcher::Matcher`
[INFO] [stdout]   --> src/main.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     Matcher
[INFO] [stdout]    |     ^^^^^^^ no `Matcher` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `grep_searcher::Sink`, `grep_searcher::Searcher`, `grep_searcher::SinkMatch`, `grep_searcher::SearcherBuilder`, `grep_searcher::MmapChoice`
[INFO] [stdout]   --> src/main.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     Sink,
[INFO] [stdout]    |     ^^^^ no `Sink` in the root
[INFO] [stdout] 32 |     Searcher,
[INFO] [stdout]    |     ^^^^^^^^ no `Searcher` in the root
[INFO] [stdout] 33 |     SinkMatch,
[INFO] [stdout]    |     ^^^^^^^^^ no `SinkMatch` in the root
[INFO] [stdout] 34 |     SearcherBuilder,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^ no `SearcherBuilder` in the root
[INFO] [stdout] 35 |     MmapChoice,
[INFO] [stdout]    |     ^^^^^^^^^^ no `MmapChoice` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/main.rs:43:55
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn scan_path(pattern: &str, path: &str) -> Result<(Vec<FileMatch>), Box<Error>> {
[INFO] [stdout]    |                                                       ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:43:77
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn scan_path(pattern: &str, path: &str) -> Result<(Vec<FileMatch>), Box<Error>> {
[INFO] [stdout]    |                                                                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `grep_regex::RegexMatcher`
[INFO] [stdout]   --> src/main.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | use grep_regex::RegexMatcher;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^ no `RegexMatcher` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `grep_matcher::Matcher`
[INFO] [stdout]   --> src/main.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     Matcher
[INFO] [stdout]    |     ^^^^^^^ no `Matcher` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `grep_searcher::Sink`, `grep_searcher::Searcher`, `grep_searcher::SinkMatch`, `grep_searcher::SearcherBuilder`, `grep_searcher::MmapChoice`
[INFO] [stdout]   --> src/main.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     Sink,
[INFO] [stdout]    |     ^^^^ no `Sink` in the root
[INFO] [stdout] 32 |     Searcher,
[INFO] [stdout]    |     ^^^^^^^^ no `Searcher` in the root
[INFO] [stdout] 33 |     SinkMatch,
[INFO] [stdout]    |     ^^^^^^^^^ no `SinkMatch` in the root
[INFO] [stdout] 34 |     SearcherBuilder,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^ no `SearcherBuilder` in the root
[INFO] [stdout] 35 |     MmapChoice,
[INFO] [stdout]    |     ^^^^^^^^^^ no `MmapChoice` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/main.rs:43:55
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn scan_path(pattern: &str, path: &str) -> Result<(Vec<FileMatch>), Box<Error>> {
[INFO] [stdout]    |                                                       ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:43:77
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn scan_path(pattern: &str, path: &str) -> Result<(Vec<FileMatch>), Box<Error>> {
[INFO] [stdout]    |                                                                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libripgrep_example`
[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] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a55472fc79cf3c21783f553f7f6db43da7d49cfe7042aa56ec18664b87a8f67e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a55472fc79cf3c21783f553f7f6db43da7d49cfe7042aa56ec18664b87a8f67e", kill_on_drop: false }`
[INFO] [stdout] a55472fc79cf3c21783f553f7f6db43da7d49cfe7042aa56ec18664b87a8f67e