[INFO] fetching crate greprs_test_5 0.1.3...
[INFO] checking greprs_test_5-0.1.3 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] extracting crate greprs_test_5 0.1.3 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate greprs_test_5 0.1.3 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate greprs_test_5 0.1.3
[INFO] finished tweaking crates.io crate greprs_test_5 0.1.3
[INFO] tweaked toml for crates.io crate greprs_test_5 0.1.3 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 622f9512c2277023108eda8cd3070e47bb79b529d39ef4f0f4c0c502f17e55c2
[INFO] running `Command { std: "docker" "start" "-a" "622f9512c2277023108eda8cd3070e47bb79b529d39ef4f0f4c0c502f17e55c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "622f9512c2277023108eda8cd3070e47bb79b529d39ef4f0f4c0c502f17e55c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "622f9512c2277023108eda8cd3070e47bb79b529d39ef4f0f4c0c502f17e55c2", kill_on_drop: false }`
[INFO] [stdout] 622f9512c2277023108eda8cd3070e47bb79b529d39ef4f0f4c0c502f17e55c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bd8683b0ffac99f75e1bbb1eafd650484f5129f4fcea11ad4fa0de0c2bfb589b
[INFO] running `Command { std: "docker" "start" "-a" "bd8683b0ffac99f75e1bbb1eafd650484f5129f4fcea11ad4fa0de0c2bfb589b", kill_on_drop: false }`
[INFO] [stderr]     Checking greprs_test_5 v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/lib.rs:9:46
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn run(config: Config) -> Result<(), Box<Error>> {
[INFO] [stdout]   |                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/lib.rs:9:46
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn run(config: Config) -> Result<(), Box<Error>> {
[INFO] [stdout]   |                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `query`
[INFO] [stdout]   --> src/lib.rs:69:19
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub fn search<'a>(query: &str, contents: &'a str) -> Vec<&'a str> { 
[INFO] [stdout]    |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_query`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `contents`
[INFO] [stdout]   --> src/lib.rs:69:32
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub fn search<'a>(query: &str, contents: &'a str) -> Vec<&'a str> { 
[INFO] [stdout]    |                                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_contents`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `search`
[INFO] [stdout]   --> src/lib.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 | */   fn search<'a>(query: &str, contents: &'a str) -> Vec<&'a str> { 
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `query`
[INFO] [stdout]   --> src/lib.rs:69:19
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub fn search<'a>(query: &str, contents: &'a str) -> Vec<&'a str> { 
[INFO] [stdout]    |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_query`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `contents`
[INFO] [stdout]   --> src/lib.rs:69:32
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub fn search<'a>(query: &str, contents: &'a str) -> Vec<&'a str> { 
[INFO] [stdout]    |                                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_contents`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `search`
[INFO] [stdout]   --> src/lib.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 | */   fn search<'a>(query: &str, contents: &'a str) -> Vec<&'a str> { 
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `case_sensitive`
[INFO] [stdout]    --> src/lib.rs:114:8
[INFO] [stdout]     |
[INFO] [stdout] 114 |     fn case_sensitive() { 
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `case_insensitive`
[INFO] [stdout]    --> src/lib.rs:131:8
[INFO] [stdout]     |
[INFO] [stdout] 131 |     fn case_insensitive() { 
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "bd8683b0ffac99f75e1bbb1eafd650484f5129f4fcea11ad4fa0de0c2bfb589b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd8683b0ffac99f75e1bbb1eafd650484f5129f4fcea11ad4fa0de0c2bfb589b", kill_on_drop: false }`
[INFO] [stdout] bd8683b0ffac99f75e1bbb1eafd650484f5129f4fcea11ad4fa0de0c2bfb589b