[INFO] fetching crate mini_super_grep 0.1.0...
[INFO] building mini_super_grep-0.1.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate mini_super_grep 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate mini_super_grep 0.1.0
[INFO] finished tweaking crates.io crate mini_super_grep 0.1.0
[INFO] tweaked toml for crates.io crate mini_super_grep 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mini_super_grep 0.1.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mini_super_grep 0.1.0 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8a847f3b37cd2c9c063b1ae7a2606fc4934beb36de467eb94bca39af1a4864e5
[INFO] running `Command { std: "docker" "start" "-a" "8a847f3b37cd2c9c063b1ae7a2606fc4934beb36de467eb94bca39af1a4864e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8a847f3b37cd2c9c063b1ae7a2606fc4934beb36de467eb94bca39af1a4864e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a847f3b37cd2c9c063b1ae7a2606fc4934beb36de467eb94bca39af1a4864e5", kill_on_drop: false }`
[INFO] [stdout] 8a847f3b37cd2c9c063b1ae7a2606fc4934beb36de467eb94bca39af1a4864e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07ff45730f45fe257e971da316562f2dc28155a697f3c4e5ac1a87ec849e0f60
[INFO] running `Command { std: "docker" "start" "-a" "07ff45730f45fe257e971da316562f2dc28155a697f3c4e5ac1a87ec849e0f60", kill_on_drop: false }`
[INFO] [stderr]    Compiling mini_super_grep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `search_case_insensitive` is never used
[INFO] [stdout]   --> src/lib.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn search_case_insensitive<'a>(query: &str, contents: &'a str) -> Vec<&'a str> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fs`
[INFO] [stdout]  --> src/main.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs, process};
[INFO] [stdout]   |           ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "07ff45730f45fe257e971da316562f2dc28155a697f3c4e5ac1a87ec849e0f60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07ff45730f45fe257e971da316562f2dc28155a697f3c4e5ac1a87ec849e0f60", kill_on_drop: false }`
[INFO] [stdout] 07ff45730f45fe257e971da316562f2dc28155a697f3c4e5ac1a87ec849e0f60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c000d86e27dcf565eccd987aa59763b5de63cb31f0d48f9b4d5540ecd2fcc337
[INFO] running `Command { std: "docker" "start" "-a" "c000d86e27dcf565eccd987aa59763b5de63cb31f0d48f9b4d5540ecd2fcc337", kill_on_drop: false }`
[INFO] [stderr]    Compiling mini_super_grep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `search_case_insensitive` is never used
[INFO] [stdout]   --> src/lib.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn search_case_insensitive<'a>(query: &str, contents: &'a str) -> Vec<&'a str> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fs`
[INFO] [stdout]  --> src/main.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs, process};
[INFO] [stdout]   |           ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "c000d86e27dcf565eccd987aa59763b5de63cb31f0d48f9b4d5540ecd2fcc337", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c000d86e27dcf565eccd987aa59763b5de63cb31f0d48f9b4d5540ecd2fcc337", kill_on_drop: false }`
[INFO] [stdout] c000d86e27dcf565eccd987aa59763b5de63cb31f0d48f9b4d5540ecd2fcc337