[INFO] cloning repository https://github.com/krahul84/ConnectFour
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/krahul84/ConnectFour" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrahul84%2FConnectFour", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrahul84%2FConnectFour'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a57491cf7632dd59f2c49bcdc98d7a991086d5b2
[INFO] testing krahul84/ConnectFour against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrahul84%2FConnectFour" "/workspace/builds/worker-22/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-22/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/krahul84/ConnectFour on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/krahul84/ConnectFour
[INFO] finished tweaking git repo https://github.com/krahul84/ConnectFour
[INFO] tweaked toml for git repo https://github.com/krahul84/ConnectFour written to /workspace/builds/worker-22/source/Cargo.toml
[INFO] crate git repo https://github.com/krahul84/ConnectFour already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b985ecfd1f09f9499d405dfec861a372443fd7ddf6ce722ff8ee9a2a5e85e8e
[INFO] running `Command { std: "docker" "start" "-a" "7b985ecfd1f09f9499d405dfec861a372443fd7ddf6ce722ff8ee9a2a5e85e8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b985ecfd1f09f9499d405dfec861a372443fd7ddf6ce722ff8ee9a2a5e85e8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b985ecfd1f09f9499d405dfec861a372443fd7ddf6ce722ff8ee9a2a5e85e8e", kill_on_drop: false }`
[INFO] [stdout] 7b985ecfd1f09f9499d405dfec861a372443fd7ddf6ce722ff8ee9a2a5e85e8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae0dcabb78e0ad6bc4a07a1f3de912591d82456d15a6120436020c83aabdd243
[INFO] running `Command { std: "docker" "start" "-a" "ae0dcabb78e0ad6bc4a07a1f3de912591d82456d15a6120436020c83aabdd243", kill_on_drop: false }`
[INFO] [stderr]    Compiling ConnectFour v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/main.rs:170:9
[INFO] [stdout]     |
[INFO] [stdout] 170 |         try!(writeln!(f, ""));
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/main.rs:167:13
[INFO] [stdout]     |
[INFO] [stdout] 167 |             try!(write!(f, "{}  ", n + 1));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `ConnectFour` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `connect_four`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "ae0dcabb78e0ad6bc4a07a1f3de912591d82456d15a6120436020c83aabdd243", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae0dcabb78e0ad6bc4a07a1f3de912591d82456d15a6120436020c83aabdd243", kill_on_drop: false }`
[INFO] [stdout] ae0dcabb78e0ad6bc4a07a1f3de912591d82456d15a6120436020c83aabdd243
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1afec4589a72c58e50d654d4d519b3d7dba70a01f3371fd171b6c281717dfac1
[INFO] running `Command { std: "docker" "start" "-a" "1afec4589a72c58e50d654d4d519b3d7dba70a01f3371fd171b6c281717dfac1", kill_on_drop: false }`
[INFO] [stderr]    Compiling ConnectFour v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/main.rs:170:9
[INFO] [stdout]     |
[INFO] [stdout] 170 |         try!(writeln!(f, ""));
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/main.rs:167:13
[INFO] [stdout]     |
[INFO] [stdout] 167 |             try!(write!(f, "{}  ", n + 1));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `ConnectFour` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `connect_four`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.59s
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1afec4589a72c58e50d654d4d519b3d7dba70a01f3371fd171b6c281717dfac1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1afec4589a72c58e50d654d4d519b3d7dba70a01f3371fd171b6c281717dfac1", kill_on_drop: false }`
[INFO] [stdout] 1afec4589a72c58e50d654d4d519b3d7dba70a01f3371fd171b6c281717dfac1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4a122dbeb6273921e22b14f0081cdba87a213df8c37bec2c4941cd1e0daa856e
[INFO] running `Command { std: "docker" "start" "-a" "4a122dbeb6273921e22b14f0081cdba87a213df8c37bec2c4941cd1e0daa856e", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:170:9
[INFO] [stderr]     |
[INFO] [stderr] 170 |         try!(writeln!(f, ""));
[INFO] [stderr]     |         ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:167:13
[INFO] [stderr]     |
[INFO] [stderr] 167 |             try!(write!(f, "{}  ", n + 1));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate `ConnectFour` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `connect_four`
[INFO] [stderr] 
[INFO] [stderr] warning: `ConnectFour` (bin "ConnectFour" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ConnectFour-ee85b797b853d568)
[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" "4a122dbeb6273921e22b14f0081cdba87a213df8c37bec2c4941cd1e0daa856e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a122dbeb6273921e22b14f0081cdba87a213df8c37bec2c4941cd1e0daa856e", kill_on_drop: false }`
[INFO] [stdout] 4a122dbeb6273921e22b14f0081cdba87a213df8c37bec2c4941cd1e0daa856e