[INFO] cloning repository https://github.com/onehr/dbrs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/onehr/dbrs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fonehr%2Fdbrs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fonehr%2Fdbrs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e75e2803fb3b3449f593611195011a8dd6297eee
[INFO] testing onehr/dbrs against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fonehr%2Fdbrs" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/onehr/dbrs on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/onehr/dbrs
[INFO] finished tweaking git repo https://github.com/onehr/dbrs
[INFO] tweaked toml for git repo https://github.com/onehr/dbrs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/onehr/dbrs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded linenoise-rust v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9149c60f061b6ec148920180e34e7aac4d59e8f469050f3d2fc4729324fe03a0
[INFO] running `Command { std: "docker" "start" "-a" "9149c60f061b6ec148920180e34e7aac4d59e8f469050f3d2fc4729324fe03a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9149c60f061b6ec148920180e34e7aac4d59e8f469050f3d2fc4729324fe03a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9149c60f061b6ec148920180e34e7aac4d59e8f469050f3d2fc4729324fe03a0", kill_on_drop: false }`
[INFO] [stdout] 9149c60f061b6ec148920180e34e7aac4d59e8f469050f3d2fc4729324fe03a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e8bae1586b5ce7d4f27edc37def43766100febe7a46d3346b65a49eb56dfb5f8
[INFO] running `Command { std: "docker" "start" "-a" "e8bae1586b5ce7d4f27edc37def43766100febe7a46d3346b65a49eb56dfb5f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.53
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling bitflags v1.0.5
[INFO] [stderr]    Compiling nix v0.13.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling cfg-if v0.1.7
[INFO] [stderr]    Compiling linenoise-rust v0.2.1
[INFO] [stderr]    Compiling dbrs v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/debugger.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut ret: Vec<&str>;
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.81s
[INFO] running `Command { std: "docker" "inspect" "e8bae1586b5ce7d4f27edc37def43766100febe7a46d3346b65a49eb56dfb5f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8bae1586b5ce7d4f27edc37def43766100febe7a46d3346b65a49eb56dfb5f8", kill_on_drop: false }`
[INFO] [stdout] e8bae1586b5ce7d4f27edc37def43766100febe7a46d3346b65a49eb56dfb5f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 79eabd537b184bb32189c8205278a7a289c434d9aa89990964a2bfa37cd2163d
[INFO] running `Command { std: "docker" "start" "-a" "79eabd537b184bb32189c8205278a7a289c434d9aa89990964a2bfa37cd2163d", kill_on_drop: false }`
[INFO] [stderr]    Compiling dbrs v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/debugger.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut ret: Vec<&str>;
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.49s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "79eabd537b184bb32189c8205278a7a289c434d9aa89990964a2bfa37cd2163d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79eabd537b184bb32189c8205278a7a289c434d9aa89990964a2bfa37cd2163d", kill_on_drop: false }`
[INFO] [stdout] 79eabd537b184bb32189c8205278a7a289c434d9aa89990964a2bfa37cd2163d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2ec896c37c1482dca83203dbe8df08e06737974ba7fc7013ab6d0eb2f88f7946
[INFO] running `Command { std: "docker" "start" "-a" "2ec896c37c1482dca83203dbe8df08e06737974ba7fc7013ab6d0eb2f88f7946", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/debugger.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let mut ret: Vec<&str>;
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/dbrs-d8218394fce603d7)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2ec896c37c1482dca83203dbe8df08e06737974ba7fc7013ab6d0eb2f88f7946", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ec896c37c1482dca83203dbe8df08e06737974ba7fc7013ab6d0eb2f88f7946", kill_on_drop: false }`
[INFO] [stdout] 2ec896c37c1482dca83203dbe8df08e06737974ba7fc7013ab6d0eb2f88f7946