[INFO] fetching crate libtombala 2.3.0...
[INFO] testing libtombala-2.3.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate libtombala 2.3.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate libtombala 2.3.0 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 libtombala 2.3.0
[INFO] finished tweaking crates.io crate libtombala 2.3.0
[INFO] tweaked toml for crates.io crate libtombala 2.3.0 written to /workspace/builds/worker-10/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 37bd57f37b02f5e54042635beee0e6f668059c19e640f02797d745ce2d5e868e
[INFO] running `Command { std: "docker" "start" "-a" "37bd57f37b02f5e54042635beee0e6f668059c19e640f02797d745ce2d5e868e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37bd57f37b02f5e54042635beee0e6f668059c19e640f02797d745ce2d5e868e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37bd57f37b02f5e54042635beee0e6f668059c19e640f02797d745ce2d5e868e", kill_on_drop: false }`
[INFO] [stdout] 37bd57f37b02f5e54042635beee0e6f668059c19e640f02797d745ce2d5e868e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 832996840c51733d23340f66933ab4614091912cb50fe9f76d307dfca165a5ba
[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" "832996840c51733d23340f66933ab4614091912cb50fe9f76d307dfca165a5ba", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling libtombala v2.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.57s
[INFO] running `Command { std: "docker" "inspect" "832996840c51733d23340f66933ab4614091912cb50fe9f76d307dfca165a5ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "832996840c51733d23340f66933ab4614091912cb50fe9f76d307dfca165a5ba", kill_on_drop: false }`
[INFO] [stdout] 832996840c51733d23340f66933ab4614091912cb50fe9f76d307dfca165a5ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] bf536acfe6ef23acd291b4be65b070d1f7a61b990b7649b96cfc77a2201d772a
[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" "bf536acfe6ef23acd291b4be65b070d1f7a61b990b7649b96cfc77a2201d772a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libtombala v2.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.97s
[INFO] running `Command { std: "docker" "inspect" "bf536acfe6ef23acd291b4be65b070d1f7a61b990b7649b96cfc77a2201d772a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf536acfe6ef23acd291b4be65b070d1f7a61b990b7649b96cfc77a2201d772a", kill_on_drop: false }`
[INFO] [stdout] bf536acfe6ef23acd291b4be65b070d1f7a61b990b7649b96cfc77a2201d772a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] [stdout] 5b9fb8c3cbcb5e128929da6207f6de8ec6ea3ea51f910a5478938ebb47f8f6e8
[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" "5b9fb8c3cbcb5e128929da6207f6de8ec6ea3ea51f910a5478938ebb47f8f6e8", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/libtombala-044e86001284f35e
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test card_generator::tests::examine_card ... ignored
[INFO] [stdout] test card_generator::tests::test_GenerateNCards ... ok
[INFO] [stdout] test card_generator::tests::generate_row_4_zeros ... ok
[INFO] [stderr]    Doc-tests libtombala
[INFO] [stdout] test card_generator::tests::row_numbers_increment_by_10 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5b9fb8c3cbcb5e128929da6207f6de8ec6ea3ea51f910a5478938ebb47f8f6e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b9fb8c3cbcb5e128929da6207f6de8ec6ea3ea51f910a5478938ebb47f8f6e8", kill_on_drop: false }`
[INFO] [stdout] 5b9fb8c3cbcb5e128929da6207f6de8ec6ea3ea51f910a5478938ebb47f8f6e8