[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 try#ed7f3d77595b4831fdf085f2529aa13b5b51ff7d for pr-134530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkapitanov%2Frust-grep" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kapitanov/rust-grep on toolchain ed7f3d77595b4831fdf085f2529aa13b5b51ff7d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-2-tc2/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac9d5c20436a7da6827f5b9bf58c7dd82e47c5fe70574c0b7ac950515424fecf
[INFO] running `Command { std: "docker" "start" "-a" "ac9d5c20436a7da6827f5b9bf58c7dd82e47c5fe70574c0b7ac950515424fecf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac9d5c20436a7da6827f5b9bf58c7dd82e47c5fe70574c0b7ac950515424fecf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac9d5c20436a7da6827f5b9bf58c7dd82e47c5fe70574c0b7ac950515424fecf", kill_on_drop: false }`
[INFO] [stdout] ac9d5c20436a7da6827f5b9bf58c7dd82e47c5fe70574c0b7ac950515424fecf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3dace9a87dcc1dc1d9459df176b71cabd7dc55c3aa555e6e05d5f3aca732d941
[INFO] running `Command { std: "docker" "start" "-a" "3dace9a87dcc1dc1d9459df176b71cabd7dc55c3aa555e6e05d5f3aca732d941", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling libc v0.2.46
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling regex-syntax v0.6.4
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]    Compiling unicase v2.2.0
[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]    |                                                                        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn try_create<'a>(&self, s: &str, ignore_case: bool) -> Result<Box<dyn Pattern>, String>;
[INFO] [stdout]    |                                                                        +++
[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]    |                       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 |     patterns: Vec<Box<dyn Pattern>>,
[INFO] [stdout]    |                       +++
[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]     |                                                                        ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 139 |     fn try_create<'a>(&self, s: &str, ignore_case: bool) -> Result<Box<dyn Pattern>, String> {
[INFO] [stdout]     |                                                                        +++
[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]     |                                                                        ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 177 |     fn try_create<'a>(&self, s: &str, ignore_case: bool) -> Result<Box<dyn Pattern>, String> {
[INFO] [stdout]     |                                                                        +++
[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]     |                              ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 129 |     fn instance<'a>() -> &'a dyn PatternFactory {
[INFO] [stdout]     |                              +++
[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]     |                              ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 167 |     fn instance<'a>() -> &'a dyn PatternFactory {
[INFO] [stdout]     |                              +++
[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]    |                                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 31 |         let mut patterns: Vec<Box<dyn Pattern>> = vec![];
[INFO] [stdout]    |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.32s
[INFO] running `Command { std: "docker" "inspect" "3dace9a87dcc1dc1d9459df176b71cabd7dc55c3aa555e6e05d5f3aca732d941", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3dace9a87dcc1dc1d9459df176b71cabd7dc55c3aa555e6e05d5f3aca732d941", kill_on_drop: false }`
[INFO] [stdout] 3dace9a87dcc1dc1d9459df176b71cabd7dc55c3aa555e6e05d5f3aca732d941
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 627c3191a9efe90554f16111bad950e3d2b1fe19cd7fdf61753346a223fd45d6
[INFO] running `Command { std: "docker" "start" "-a" "627c3191a9efe90554f16111bad950e3d2b1fe19cd7fdf61753346a223fd45d6", 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]    |                                                                        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn try_create<'a>(&self, s: &str, ignore_case: bool) -> Result<Box<dyn Pattern>, String>;
[INFO] [stdout]    |                                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustgrep` (bin "rustgrep" test); 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse process output: `/opt/rustwide/rustup-home/toolchains/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/bin/rustc --crate-name rustgrep --edition=2018 src/main.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --check-cfg 'cfg(docsrs)' --check-cfg 'cfg(feature, values())' -C metadata=e77a79afdb24e4f3 -C extra-filename=-84b0dc12fc7490c1 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern regex=/opt/rustwide/target/debug/deps/libregex-4e26a0f044a460f5.rlib --extern unicase=/opt/rustwide/target/debug/deps/libunicase-2eef612b72b20489.rlib --cap-lints=forbid` (exit status: 0)
[INFO] running `Command { std: "docker" "inspect" "627c3191a9efe90554f16111bad950e3d2b1fe19cd7fdf61753346a223fd45d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "627c3191a9efe90554f16111bad950e3d2b1fe19cd7fdf61753346a223fd45d6", kill_on_drop: false }`
[INFO] [stdout] 627c3191a9efe90554f16111bad950e3d2b1fe19cd7fdf61753346a223fd45d6