[INFO] cloning repository https://github.com/kapitanov/rust-grep
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kapitanov/rust-grep" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkapitanov%2Frust-grep", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkapitanov%2Frust-grep'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 23d6a3d98837751c974061b13651432753ed0436
[INFO] testing kapitanov/rust-grep against 1.45.2 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkapitanov%2Frust-grep" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kapitanov/rust-grep on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kapitanov/rust-grep
[INFO] finished tweaking git repo https://github.com/kapitanov/rust-grep
[INFO] tweaked toml for git repo https://github.com/kapitanov/rust-grep written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/kapitanov/rust-grep already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fccf68eb626769a8a9b9424df6262696a3017da9529cd03de5af8695a99a53d7
[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" "fccf68eb626769a8a9b9424df6262696a3017da9529cd03de5af8695a99a53d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fccf68eb626769a8a9b9424df6262696a3017da9529cd03de5af8695a99a53d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fccf68eb626769a8a9b9424df6262696a3017da9529cd03de5af8695a99a53d7", kill_on_drop: false }`
[INFO] [stdout] fccf68eb626769a8a9b9424df6262696a3017da9529cd03de5af8695a99a53d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 27eb85dc93ff70b9dbce61029ff81345fbfe59ab5ba917f432389797a96540c8
[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" "27eb85dc93ff70b9dbce61029ff81345fbfe59ab5ba917f432389797a96540c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.46
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]    Compiling unicase v2.2.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling regex-syntax v0.6.4
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling rustgrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/grep.rs:17:72
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn try_create<'a>(&self, s: &str, ignore_case: bool) -> Result<Box<Pattern>, String>;
[INFO] [stdout]    |                                                                        ^^^^^^^ help: use `dyn`: `dyn Pattern`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/grep.rs:21:23
[INFO] [stdout]    |
[INFO] [stdout] 21 |     patterns: Vec<Box<Pattern>>,
[INFO] [stdout]    |                       ^^^^^^^ help: use `dyn`: `dyn Pattern`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/grep.rs:31:35
[INFO] [stdout]    |
[INFO] [stdout] 31 |         let mut patterns: Vec<Box<Pattern>> = vec![];
[INFO] [stdout]    |                                   ^^^^^^^ help: use `dyn`: `dyn Pattern`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/grep.rs:129:30
[INFO] [stdout]     |
[INFO] [stdout] 129 |     fn instance<'a>() -> &'a PatternFactory {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^ help: use `dyn`: `dyn PatternFactory`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/grep.rs:139:72
[INFO] [stdout]     |
[INFO] [stdout] 139 |     fn try_create<'a>(&self, s: &str, ignore_case: bool) -> Result<Box<Pattern>, String> {
[INFO] [stdout]     |                                                                        ^^^^^^^ help: use `dyn`: `dyn Pattern`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/grep.rs:167:30
[INFO] [stdout]     |
[INFO] [stdout] 167 |     fn instance<'a>() -> &'a PatternFactory {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^ help: use `dyn`: `dyn PatternFactory`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/grep.rs:177:72
[INFO] [stdout]     |
[INFO] [stdout] 177 |     fn try_create<'a>(&self, s: &str, ignore_case: bool) -> Result<Box<Pattern>, String> {
[INFO] [stdout]     |                                                                        ^^^^^^^ help: use `dyn`: `dyn Pattern`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]    --> src/grep.rs:184:42
[INFO] [stdout]     |
[INFO] [stdout] 184 |                 let err = String::from(e.description());
[INFO] [stdout]     |                                          ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.50s
[INFO] running `Command { std: "docker" "inspect" "27eb85dc93ff70b9dbce61029ff81345fbfe59ab5ba917f432389797a96540c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27eb85dc93ff70b9dbce61029ff81345fbfe59ab5ba917f432389797a96540c8", kill_on_drop: false }`
[INFO] [stdout] 27eb85dc93ff70b9dbce61029ff81345fbfe59ab5ba917f432389797a96540c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2261e457c371baefd6f06df1f71c18cb42d7e7a151b1c28980509424a5e46e9
[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" "d2261e457c371baefd6f06df1f71c18cb42d7e7a151b1c28980509424a5e46e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustgrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/grep.rs:17:72
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn try_create<'a>(&self, s: &str, ignore_case: bool) -> Result<Box<Pattern>, String>;
[INFO] [stdout]    |                                                                        ^^^^^^^ help: use `dyn`: `dyn Pattern`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/grep.rs:21:23
[INFO] [stdout]    |
[INFO] [stdout] 21 |     patterns: Vec<Box<Pattern>>,
[INFO] [stdout]    |                       ^^^^^^^ help: use `dyn`: `dyn Pattern`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/grep.rs:31:35
[INFO] [stdout]    |
[INFO] [stdout] 31 |         let mut patterns: Vec<Box<Pattern>> = vec![];
[INFO] [stdout]    |                                   ^^^^^^^ help: use `dyn`: `dyn Pattern`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/grep.rs:129:30
[INFO] [stdout]     |
[INFO] [stdout] 129 |     fn instance<'a>() -> &'a PatternFactory {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^ help: use `dyn`: `dyn PatternFactory`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/grep.rs:139:72
[INFO] [stdout]     |
[INFO] [stdout] 139 |     fn try_create<'a>(&self, s: &str, ignore_case: bool) -> Result<Box<Pattern>, String> {
[INFO] [stdout]     |                                                                        ^^^^^^^ help: use `dyn`: `dyn Pattern`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/grep.rs:167:30
[INFO] [stdout]     |
[INFO] [stdout] 167 |     fn instance<'a>() -> &'a PatternFactory {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^ help: use `dyn`: `dyn PatternFactory`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/grep.rs:177:72
[INFO] [stdout]     |
[INFO] [stdout] 177 |     fn try_create<'a>(&self, s: &str, ignore_case: bool) -> Result<Box<Pattern>, String> {
[INFO] [stdout]     |                                                                        ^^^^^^^ help: use `dyn`: `dyn Pattern`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]    --> src/grep.rs:184:42
[INFO] [stdout]     |
[INFO] [stdout] 184 |                 let err = String::from(e.description());
[INFO] [stdout]     |                                          ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.62s
[INFO] running `Command { std: "docker" "inspect" "d2261e457c371baefd6f06df1f71c18cb42d7e7a151b1c28980509424a5e46e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2261e457c371baefd6f06df1f71c18cb42d7e7a151b1c28980509424a5e46e9", kill_on_drop: false }`
[INFO] [stdout] d2261e457c371baefd6f06df1f71c18cb42d7e7a151b1c28980509424a5e46e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 670e2fd45e1776424312db8b3db75d6d000b019f539119ac1bddff7de9bf1006
[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" "670e2fd45e1776424312db8b3db75d6d000b019f539119ac1bddff7de9bf1006", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/grep.rs:17:72
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn try_create<'a>(&self, s: &str, ignore_case: bool) -> Result<Box<Pattern>, String>;
[INFO] [stderr]    |                                                                        ^^^^^^^ help: use `dyn`: `dyn Pattern`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/grep.rs:21:23
[INFO] [stderr]    |
[INFO] [stderr] 21 |     patterns: Vec<Box<Pattern>>,
[INFO] [stderr]    |                       ^^^^^^^ help: use `dyn`: `dyn Pattern`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/grep.rs:31:35
[INFO] [stderr]    |
[INFO] [stderr] 31 |         let mut patterns: Vec<Box<Pattern>> = vec![];
[INFO] [stderr]    |                                   ^^^^^^^ help: use `dyn`: `dyn Pattern`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/grep.rs:129:30
[INFO] [stderr]     |
[INFO] [stderr] 129 |     fn instance<'a>() -> &'a PatternFactory {
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^ help: use `dyn`: `dyn PatternFactory`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/grep.rs:139:72
[INFO] [stderr]     |
[INFO] [stderr] 139 |     fn try_create<'a>(&self, s: &str, ignore_case: bool) -> Result<Box<Pattern>, String> {
[INFO] [stderr]     |                                                                        ^^^^^^^ help: use `dyn`: `dyn Pattern`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/grep.rs:167:30
[INFO] [stderr]     |
[INFO] [stderr] 167 |     fn instance<'a>() -> &'a PatternFactory {
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^ help: use `dyn`: `dyn PatternFactory`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/grep.rs:177:72
[INFO] [stderr]     |
[INFO] [stderr] 177 |     fn try_create<'a>(&self, s: &str, ignore_case: bool) -> Result<Box<Pattern>, String> {
[INFO] [stderr]     |                                                                        ^^^^^^^ help: use `dyn`: `dyn Pattern`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/grep.rs:184:42
[INFO] [stderr]     |
[INFO] [stderr] 184 |                 let err = String::from(e.description());
[INFO] [stderr]     |                                          ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rustgrep-bc7df00b04345b9e
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test grep::tests::contains_few ... ok
[INFO] [stdout] test grep::tests::contains_one ... ok
[INFO] [stdout] test grep::tests::contains_none ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "670e2fd45e1776424312db8b3db75d6d000b019f539119ac1bddff7de9bf1006", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "670e2fd45e1776424312db8b3db75d6d000b019f539119ac1bddff7de9bf1006", kill_on_drop: false }`
[INFO] [stdout] 670e2fd45e1776424312db8b3db75d6d000b019f539119ac1bddff7de9bf1006