[INFO] cloning repository https://github.com/jakubiwaszkiewicz/rust-algorithms
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jakubiwaszkiewicz/rust-algorithms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakubiwaszkiewicz%2Frust-algorithms", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakubiwaszkiewicz%2Frust-algorithms'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 19d5d9c8fedca7831fdd1f79b7547197cd070e56
[INFO] checking jakubiwaszkiewicz/rust-algorithms against try#0fe3684930279e4d3be3aca66b30f82946ce9ac2 for pr-138340
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakubiwaszkiewicz%2Frust-algorithms" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jakubiwaszkiewicz/rust-algorithms on toolchain 0fe3684930279e4d3be3aca66b30f82946ce9ac2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0fe3684930279e4d3be3aca66b30f82946ce9ac2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jakubiwaszkiewicz/rust-algorithms
[INFO] finished tweaking git repo https://github.com/jakubiwaszkiewicz/rust-algorithms
[INFO] tweaked toml for git repo https://github.com/jakubiwaszkiewicz/rust-algorithms written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/jakubiwaszkiewicz/rust-algorithms 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" "+0fe3684930279e4d3be3aca66b30f82946ce9ac2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking jakubiwaszkiewicz/rust-algorithms against try#0fe3684930279e4d3be3aca66b30f82946ce9ac2 for pr-138340
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakubiwaszkiewicz%2Frust-algorithms" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jakubiwaszkiewicz/rust-algorithms on toolchain 0fe3684930279e4d3be3aca66b30f82946ce9ac2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0fe3684930279e4d3be3aca66b30f82946ce9ac2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jakubiwaszkiewicz/rust-algorithms
[INFO] finished tweaking git repo https://github.com/jakubiwaszkiewicz/rust-algorithms
[INFO] tweaked toml for git repo https://github.com/jakubiwaszkiewicz/rust-algorithms written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/jakubiwaszkiewicz/rust-algorithms 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" "+0fe3684930279e4d3be3aca66b30f82946ce9ac2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+0fe3684930279e4d3be3aca66b30f82946ce9ac2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dafdf4f10b1a6fa59add8cb0e6be23431527912acb45950ff13fc4798742cb81
[INFO] running `Command { std: "docker" "start" "-a" "dafdf4f10b1a6fa59add8cb0e6be23431527912acb45950ff13fc4798742cb81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dafdf4f10b1a6fa59add8cb0e6be23431527912acb45950ff13fc4798742cb81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dafdf4f10b1a6fa59add8cb0e6be23431527912acb45950ff13fc4798742cb81", kill_on_drop: false }`
[INFO] [stdout] dafdf4f10b1a6fa59add8cb0e6be23431527912acb45950ff13fc4798742cb81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+0fe3684930279e4d3be3aca66b30f82946ce9ac2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0361faaec7f5dc4f120652428eb07efaa72a25e0278b81f11e81caa4f4ac8ccb
[INFO] running `Command { std: "docker" "start" "-a" "0361faaec7f5dc4f120652428eb07efaa72a25e0278b81f11e81caa4f4ac8ccb", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `mid` is never read
[INFO] [stdout]  --> src/binary_search.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut mid = 0;
[INFO] [stdout]   |             ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `mid` is never read
[INFO] [stdout]  --> src/binary_search.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut mid = 0;
[INFO] [stdout]   |             ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "0361faaec7f5dc4f120652428eb07efaa72a25e0278b81f11e81caa4f4ac8ccb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0361faaec7f5dc4f120652428eb07efaa72a25e0278b81f11e81caa4f4ac8ccb", kill_on_drop: false }`
[INFO] [stdout] 0361faaec7f5dc4f120652428eb07efaa72a25e0278b81f11e81caa4f4ac8ccb