[INFO] fetching crate grrs_test 0.1.0...
[INFO] testing grrs_test-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate grrs_test 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate grrs_test 0.1.0 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 crates.io crate grrs_test 0.1.0
[INFO] finished tweaking crates.io crate grrs_test 0.1.0
[INFO] tweaked toml for crates.io crate grrs_test 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate grrs_test 0.1.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 56f957eeb7fe2f20eee9a351ef34680b0d286e0897f7d91f2b55e06eff2d37c6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "56f957eeb7fe2f20eee9a351ef34680b0d286e0897f7d91f2b55e06eff2d37c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "56f957eeb7fe2f20eee9a351ef34680b0d286e0897f7d91f2b55e06eff2d37c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56f957eeb7fe2f20eee9a351ef34680b0d286e0897f7d91f2b55e06eff2d37c6", kill_on_drop: false }`
[INFO] [stdout] 56f957eeb7fe2f20eee9a351ef34680b0d286e0897f7d91f2b55e06eff2d37c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 22fda0542074fc142f88a18aadcba5bf651f38477254ccfc8667880a4f756b7e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "22fda0542074fc142f88a18aadcba5bf651f38477254ccfc8667880a4f756b7e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.46
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.13
[INFO] [stderr]    Compiling structopt v0.3.20
[INFO] [stderr]    Compiling grrs_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/main.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let args = Cli {
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[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 17.75s
[INFO] running `Command { std: "docker" "inspect" "22fda0542074fc142f88a18aadcba5bf651f38477254ccfc8667880a4f756b7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22fda0542074fc142f88a18aadcba5bf651f38477254ccfc8667880a4f756b7e", kill_on_drop: false }`
[INFO] [stdout] 22fda0542074fc142f88a18aadcba5bf651f38477254ccfc8667880a4f756b7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 61daadcba0d41c6f04a4974438e7d86c16a0738156146b3a9af21d75afc2698b
[INFO] running `Command { std: "docker" "start" "-a" "61daadcba0d41c6f04a4974438e7d86c16a0738156146b3a9af21d75afc2698b", kill_on_drop: false }`
[INFO] [stderr]    Compiling grrs_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/main.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let args = Cli {
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[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 0.86s
[INFO] running `Command { std: "docker" "inspect" "61daadcba0d41c6f04a4974438e7d86c16a0738156146b3a9af21d75afc2698b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61daadcba0d41c6f04a4974438e7d86c16a0738156146b3a9af21d75afc2698b", kill_on_drop: false }`
[INFO] [stdout] 61daadcba0d41c6f04a4974438e7d86c16a0738156146b3a9af21d75afc2698b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 8d27b53df558194fff8358f6c5685df043af86e6a8dc47d5e18bc0a4081be117
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8d27b53df558194fff8358f6c5685df043af86e6a8dc47d5e18bc0a4081be117", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/main.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |     let args = Cli {
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `grrs_test` (bin "grrs_test" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/grrs_test-9a639758ca4ed54d)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test check_answer_validity ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8d27b53df558194fff8358f6c5685df043af86e6a8dc47d5e18bc0a4081be117", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d27b53df558194fff8358f6c5685df043af86e6a8dc47d5e18bc0a4081be117", kill_on_drop: false }`
[INFO] [stdout] 8d27b53df558194fff8358f6c5685df043af86e6a8dc47d5e18bc0a4081be117