[INFO] cloning repository https://github.com/luishsr/tinygrep
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luishsr/tinygrep" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluishsr%2Ftinygrep", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluishsr%2Ftinygrep'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fb03fda1d48552e130ab6635116aead6e3cf875d
[INFO] checking luishsr/tinygrep against try#654bc80249a2b2ba8bd16392b5829d87ed96c92d for pr-136458
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluishsr%2Ftinygrep" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/luishsr/tinygrep on toolchain 654bc80249a2b2ba8bd16392b5829d87ed96c92d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+654bc80249a2b2ba8bd16392b5829d87ed96c92d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/luishsr/tinygrep
[INFO] finished tweaking git repo https://github.com/luishsr/tinygrep
[INFO] tweaked toml for git repo https://github.com/luishsr/tinygrep written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/luishsr/tinygrep 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" "+654bc80249a2b2ba8bd16392b5829d87ed96c92d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+654bc80249a2b2ba8bd16392b5829d87ed96c92d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e092e61f91753542539e6801bb1aa9d2d9facf8d94d4e5da1adf4295e61ed6f3
[INFO] running `Command { std: "docker" "start" "-a" "e092e61f91753542539e6801bb1aa9d2d9facf8d94d4e5da1adf4295e61ed6f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e092e61f91753542539e6801bb1aa9d2d9facf8d94d4e5da1adf4295e61ed6f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e092e61f91753542539e6801bb1aa9d2d9facf8d94d4e5da1adf4295e61ed6f3", kill_on_drop: false }`
[INFO] [stdout] e092e61f91753542539e6801bb1aa9d2d9facf8d94d4e5da1adf4295e61ed6f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+654bc80249a2b2ba8bd16392b5829d87ed96c92d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 990ca3ac83a62c0b743faa1a7472c56979542980d867f687e3425ac6e31a6dad
[INFO] running `Command { std: "docker" "start" "-a" "990ca3ac83a62c0b743faa1a7472c56979542980d867f687e3425ac6e31a6dad", kill_on_drop: false }`
[INFO] [stderr]     Checking tinygrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `query`
[INFO] [stdout]   --> src/lib.rs:39:19
[INFO] [stdout]    |
[INFO] [stdout] 39 | 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:39:32
[INFO] [stdout]    |
[INFO] [stdout] 39 | 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: unused variable: `query`
[INFO] [stdout]   --> src/lib.rs:39:19
[INFO] [stdout]    |
[INFO] [stdout] 39 | 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:39:32
[INFO] [stdout]    |
[INFO] [stdout] 39 | 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "990ca3ac83a62c0b743faa1a7472c56979542980d867f687e3425ac6e31a6dad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "990ca3ac83a62c0b743faa1a7472c56979542980d867f687e3425ac6e31a6dad", kill_on_drop: false }`
[INFO] [stdout] 990ca3ac83a62c0b743faa1a7472c56979542980d867f687e3425ac6e31a6dad