[INFO] fetching crate cenum 1.0.3...
[INFO] testing cenum-1.0.3 against 1.49.0 for beta-1.50-1
[INFO] extracting crate cenum 1.0.3 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate cenum 1.0.3 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 cenum 1.0.3
[INFO] finished tweaking crates.io crate cenum 1.0.3
[INFO] tweaked toml for crates.io crate cenum 1.0.3 written to /workspace/builds/worker-0/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-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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/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] 6ef4d26f02a5a8e6b1e70a80adfa50e7982b86ddc4388b78d209cac68902508b
[INFO] running `Command { std: "docker" "start" "-a" "6ef4d26f02a5a8e6b1e70a80adfa50e7982b86ddc4388b78d209cac68902508b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ef4d26f02a5a8e6b1e70a80adfa50e7982b86ddc4388b78d209cac68902508b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ef4d26f02a5a8e6b1e70a80adfa50e7982b86ddc4388b78d209cac68902508b", kill_on_drop: false }`
[INFO] [stdout] 6ef4d26f02a5a8e6b1e70a80adfa50e7982b86ddc4388b78d209cac68902508b
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6cc3f4b9ddb41df5ce03c469b1d28cb8439720511827505398befe2079e79855
[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" "6cc3f4b9ddb41df5ce03c469b1d28cb8439720511827505398befe2079e79855", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling cenum-derive v1.0.3
[INFO] [stderr]    Compiling cenum v1.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.30s
[INFO] running `Command { std: "docker" "inspect" "6cc3f4b9ddb41df5ce03c469b1d28cb8439720511827505398befe2079e79855", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cc3f4b9ddb41df5ce03c469b1d28cb8439720511827505398befe2079e79855", kill_on_drop: false }`
[INFO] [stdout] 6cc3f4b9ddb41df5ce03c469b1d28cb8439720511827505398befe2079e79855
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0b85b5e12150a87b63bef7a4e45d16342a31d0efffa60f17c2be1a9b6eb50d8
[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" "c0b85b5e12150a87b63bef7a4e45d16342a31d0efffa60f17c2be1a9b6eb50d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling cenum v1.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.96s
[INFO] running `Command { std: "docker" "inspect" "c0b85b5e12150a87b63bef7a4e45d16342a31d0efffa60f17c2be1a9b6eb50d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0b85b5e12150a87b63bef7a4e45d16342a31d0efffa60f17c2be1a9b6eb50d8", kill_on_drop: false }`
[INFO] [stdout] c0b85b5e12150a87b63bef7a4e45d16342a31d0efffa60f17c2be1a9b6eb50d8
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e52c0e241b3d430ea1347da76e98c22df2b67468f840780daa13baae910c3cbd
[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" "e52c0e241b3d430ea1347da76e98c22df2b67468f840780daa13baae910c3cbd", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/cenum-24a9a3b9a1cdc344
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test tests::can_check ... ok
[INFO] [stdout] test tests::can_check_determinant ... ok
[INFO] [stdout] test tests::can_deserialize ... ok
[INFO] [stdout] test tests::can_deserialize_determinant ... ok
[INFO] [stdout] test tests::can_serialize_determinant ... ok
[INFO] [stderr]    Doc-tests cenum
[INFO] [stdout] test tests::can_serialize ... ok
[INFO] [stdout] test tests::enum_negative ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 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" "e52c0e241b3d430ea1347da76e98c22df2b67468f840780daa13baae910c3cbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e52c0e241b3d430ea1347da76e98c22df2b67468f840780daa13baae910c3cbd", kill_on_drop: false }`
[INFO] [stdout] e52c0e241b3d430ea1347da76e98c22df2b67468f840780daa13baae910c3cbd