[INFO] fetching crate icub3d_combinatorics 0.1.1...
[INFO] testing icub3d_combinatorics-0.1.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate icub3d_combinatorics 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate icub3d_combinatorics 0.1.1 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate icub3d_combinatorics 0.1.1
[INFO] finished tweaking crates.io crate icub3d_combinatorics 0.1.1
[INFO] tweaked toml for crates.io crate icub3d_combinatorics 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b2233f5a6086ed38aee9369011e4836a3b05726f91bcee25bfe0d3751592e1dc
[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" "b2233f5a6086ed38aee9369011e4836a3b05726f91bcee25bfe0d3751592e1dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b2233f5a6086ed38aee9369011e4836a3b05726f91bcee25bfe0d3751592e1dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2233f5a6086ed38aee9369011e4836a3b05726f91bcee25bfe0d3751592e1dc", kill_on_drop: false }`
[INFO] [stdout] b2233f5a6086ed38aee9369011e4836a3b05726f91bcee25bfe0d3751592e1dc
[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=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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dcbf28f6175339492c9b507f20a4120320401961cdeba11615d2baef027baaeb
[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" "dcbf28f6175339492c9b507f20a4120320401961cdeba11615d2baef027baaeb", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]    Compiling icub3d_combinatorics v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "dcbf28f6175339492c9b507f20a4120320401961cdeba11615d2baef027baaeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcbf28f6175339492c9b507f20a4120320401961cdeba11615d2baef027baaeb", kill_on_drop: false }`
[INFO] [stdout] dcbf28f6175339492c9b507f20a4120320401961cdeba11615d2baef027baaeb
[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=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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6582bce272fbbe8992d0701c7412b70936174792839a92b35acfa8903c6bc211
[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" "6582bce272fbbe8992d0701c7412b70936174792839a92b35acfa8903c6bc211", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]    Compiling icub3d_combinatorics v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `Command { std: "docker" "inspect" "6582bce272fbbe8992d0701c7412b70936174792839a92b35acfa8903c6bc211", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6582bce272fbbe8992d0701c7412b70936174792839a92b35acfa8903c6bc211", kill_on_drop: false }`
[INFO] [stdout] 6582bce272fbbe8992d0701c7412b70936174792839a92b35acfa8903c6bc211
[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=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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", 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] e2f5f9e659ae97e6dd9a4eace26ad848e46e61eb9c990b828bac57f75a589f85
[INFO] running `Command { std: "docker" "start" "-a" "e2f5f9e659ae97e6dd9a4eace26ad848e46e61eb9c990b828bac57f75a589f85", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stdout] running 2 tests
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] test tests::combination_3_2 ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/icub3d_combinatorics-50665796fcc3b367
[INFO] [stdout] test tests::permutation_3 ... ok
[INFO] [stderr]    Doc-tests icub3d_combinatorics
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - Permutation (line 17) ... ok
[INFO] [stdout] test src/lib.rs - Combination (line 128) ... ok
[INFO] [stdout] test src/lib.rs - Combination (line 153) ... ok
[INFO] [stdout] test src/lib.rs - Permutation (line 45) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e2f5f9e659ae97e6dd9a4eace26ad848e46e61eb9c990b828bac57f75a589f85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2f5f9e659ae97e6dd9a4eace26ad848e46e61eb9c990b828bac57f75a589f85", kill_on_drop: false }`
[INFO] [stdout] e2f5f9e659ae97e6dd9a4eace26ad848e46e61eb9c990b828bac57f75a589f85