[INFO] fetching crate nibonacci 0.1.0...
[INFO] testing nibonacci-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate nibonacci 0.1.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate nibonacci 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 nibonacci 0.1.0
[INFO] finished tweaking crates.io crate nibonacci 0.1.0
[INFO] tweaked toml for crates.io crate nibonacci 0.1.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a9cdc87e07b81800b7edf9c5c391cdc62ae74c74c33370a257e56fcc78bf1803
[INFO] running `Command { std: "docker" "start" "-a" "a9cdc87e07b81800b7edf9c5c391cdc62ae74c74c33370a257e56fcc78bf1803", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9cdc87e07b81800b7edf9c5c391cdc62ae74c74c33370a257e56fcc78bf1803", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9cdc87e07b81800b7edf9c5c391cdc62ae74c74c33370a257e56fcc78bf1803", kill_on_drop: false }`
[INFO] [stdout] a9cdc87e07b81800b7edf9c5c391cdc62ae74c74c33370a257e56fcc78bf1803
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e703658494768e22612f58c41b0337b01a178773cd07291da074a5c9c906ce0b
[INFO] running `Command { std: "docker" "start" "-a" "e703658494768e22612f58c41b0337b01a178773cd07291da074a5c9c906ce0b", kill_on_drop: false }`
[INFO] [stderr]    Compiling nibonacci v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "e703658494768e22612f58c41b0337b01a178773cd07291da074a5c9c906ce0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e703658494768e22612f58c41b0337b01a178773cd07291da074a5c9c906ce0b", kill_on_drop: false }`
[INFO] [stdout] e703658494768e22612f58c41b0337b01a178773cd07291da074a5c9c906ce0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 2abaf7b8a34f602f1d3c2af5a413e46d9db2d01da47840fff4493b4f1f8fe53c
[INFO] running `Command { std: "docker" "start" "-a" "2abaf7b8a34f602f1d3c2af5a413e46d9db2d01da47840fff4493b4f1f8fe53c", kill_on_drop: false }`
[INFO] [stderr]    Compiling nibonacci v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "2abaf7b8a34f602f1d3c2af5a413e46d9db2d01da47840fff4493b4f1f8fe53c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2abaf7b8a34f602f1d3c2af5a413e46d9db2d01da47840fff4493b4f1f8fe53c", kill_on_drop: false }`
[INFO] [stdout] 2abaf7b8a34f602f1d3c2af5a413e46d9db2d01da47840fff4493b4f1f8fe53c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 5c56d65405c38ba8ca71f08693a9db95f012f6cb4eaf7dc359ad74e0da9eb7cf
[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" "5c56d65405c38ba8ca71f08693a9db95f012f6cb4eaf7dc359ad74e0da9eb7cf", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 2 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/nibonacci-6da965918ac47600)
[INFO] [stderr]    Doc-tests nibonacci
[INFO] [stdout] test tests::test_fibonacci ... ok
[INFO] [stdout] test tests::test_tribonacci ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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" "5c56d65405c38ba8ca71f08693a9db95f012f6cb4eaf7dc359ad74e0da9eb7cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c56d65405c38ba8ca71f08693a9db95f012f6cb4eaf7dc359ad74e0da9eb7cf", kill_on_drop: false }`
[INFO] [stdout] 5c56d65405c38ba8ca71f08693a9db95f012f6cb4eaf7dc359ad74e0da9eb7cf