[INFO] cloning repository https://github.com/mhn1991/dpll
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mhn1991/dpll" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmhn1991%2Fdpll", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmhn1991%2Fdpll'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 90d057d58e92863dbdf0cecda8a5982e068b993d
[INFO] testing mhn1991/dpll against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmhn1991%2Fdpll" "/workspace/builds/worker-104/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-104/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mhn1991/dpll on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mhn1991/dpll
[INFO] finished tweaking git repo https://github.com/mhn1991/dpll
[INFO] tweaked toml for git repo https://github.com/mhn1991/dpll written to /workspace/builds/worker-104/source/Cargo.toml
[INFO] crate git repo https://github.com/mhn1991/dpll already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8098caa7effb4794b68628961af357196b892beab3d255c10da2c6e3ae68c451
[INFO] running `Command { std: "docker" "start" "-a" "8098caa7effb4794b68628961af357196b892beab3d255c10da2c6e3ae68c451", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8098caa7effb4794b68628961af357196b892beab3d255c10da2c6e3ae68c451", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8098caa7effb4794b68628961af357196b892beab3d255c10da2c6e3ae68c451", kill_on_drop: false }`
[INFO] [stdout] 8098caa7effb4794b68628961af357196b892beab3d255c10da2c6e3ae68c451
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 470159f6b6bc9f235b82f942980ad7eb270f7032e21ae912c86cc87bece6c563
[INFO] running `Command { std: "docker" "start" "-a" "470159f6b6bc9f235b82f942980ad7eb270f7032e21ae912c86cc87bece6c563", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling dpll v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `int`
[INFO] [stdout]   --> src/dimacs.rs:20:26
[INFO] [stdout]    |
[INFO] [stdout] 20 | ...                   Ok(int) =>{
[INFO] [stdout]    |                          ^^^ help: if this is intentional, prefix it with an underscore: `_int`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` 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 2.00s
[INFO] running `Command { std: "docker" "inspect" "470159f6b6bc9f235b82f942980ad7eb270f7032e21ae912c86cc87bece6c563", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "470159f6b6bc9f235b82f942980ad7eb270f7032e21ae912c86cc87bece6c563", kill_on_drop: false }`
[INFO] [stdout] 470159f6b6bc9f235b82f942980ad7eb270f7032e21ae912c86cc87bece6c563
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ab9320bf7157b7ff0b622bd952914f0e5d46816d672303c68466d99837626da
[INFO] running `Command { std: "docker" "start" "-a" "7ab9320bf7157b7ff0b622bd952914f0e5d46816d672303c68466d99837626da", kill_on_drop: false }`
[INFO] [stderr]    Compiling dpll v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `int`
[INFO] [stdout]   --> src/dimacs.rs:20:26
[INFO] [stdout]    |
[INFO] [stdout] 20 | ...                   Ok(int) =>{
[INFO] [stdout]    |                          ^^^ help: if this is intentional, prefix it with an underscore: `_int`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "7ab9320bf7157b7ff0b622bd952914f0e5d46816d672303c68466d99837626da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ab9320bf7157b7ff0b622bd952914f0e5d46816d672303c68466d99837626da", kill_on_drop: false }`
[INFO] [stdout] 7ab9320bf7157b7ff0b622bd952914f0e5d46816d672303c68466d99837626da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] faf11768bee4b1d1003463b8c5d90f094726d12c69b2d9028c86a6caf18600ef
[INFO] running `Command { std: "docker" "start" "-a" "faf11768bee4b1d1003463b8c5d90f094726d12c69b2d9028c86a6caf18600ef", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `int`
[INFO] [stderr]   --> src/dimacs.rs:20:26
[INFO] [stderr]    |
[INFO] [stderr] 20 | ...                   Ok(int) =>{
[INFO] [stderr]    |                          ^^^ help: if this is intentional, prefix it with an underscore: `_int`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `dpll` (bin "dpll" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.95s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/dpll-9cfbb6891e8467dc)
[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" "faf11768bee4b1d1003463b8c5d90f094726d12c69b2d9028c86a6caf18600ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "faf11768bee4b1d1003463b8c5d90f094726d12c69b2d9028c86a6caf18600ef", kill_on_drop: false }`
[INFO] [stdout] faf11768bee4b1d1003463b8c5d90f094726d12c69b2d9028c86a6caf18600ef