[INFO] fetching crate flats 0.1.0...
[INFO] testing flats-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate flats 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate flats 0.1.0 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 flats 0.1.0
[INFO] finished tweaking crates.io crate flats 0.1.0
[INFO] tweaked toml for crates.io crate flats 0.1.0 written to /workspace/builds/worker-3/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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 22f7ff0b97695a2a68e6d2fe2fedaacf67ba6391288b06cbb39bda67fdef1e66
[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" "22f7ff0b97695a2a68e6d2fe2fedaacf67ba6391288b06cbb39bda67fdef1e66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "22f7ff0b97695a2a68e6d2fe2fedaacf67ba6391288b06cbb39bda67fdef1e66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22f7ff0b97695a2a68e6d2fe2fedaacf67ba6391288b06cbb39bda67fdef1e66", kill_on_drop: false }`
[INFO] [stdout] 22f7ff0b97695a2a68e6d2fe2fedaacf67ba6391288b06cbb39bda67fdef1e66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f11f9cebb89cdb83caf1e077adf4b0a06f230b3bfca083cae368534e6e8d58ed
[INFO] running `Command { std: "docker" "start" "-a" "f11f9cebb89cdb83caf1e077adf4b0a06f230b3bfca083cae368534e6e8d58ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling flats v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "f11f9cebb89cdb83caf1e077adf4b0a06f230b3bfca083cae368534e6e8d58ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f11f9cebb89cdb83caf1e077adf4b0a06f230b3bfca083cae368534e6e8d58ed", kill_on_drop: false }`
[INFO] [stdout] f11f9cebb89cdb83caf1e077adf4b0a06f230b3bfca083cae368534e6e8d58ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] f7402e75f3fe1dcf2797f8b3413158b7df8ee1d7ed39acc1fe185807f565d127
[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" "f7402e75f3fe1dcf2797f8b3413158b7df8ee1d7ed39acc1fe185807f565d127", kill_on_drop: false }`
[INFO] [stderr]    Compiling flats v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.09s
[INFO] running `Command { std: "docker" "inspect" "f7402e75f3fe1dcf2797f8b3413158b7df8ee1d7ed39acc1fe185807f565d127", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7402e75f3fe1dcf2797f8b3413158b7df8ee1d7ed39acc1fe185807f565d127", kill_on_drop: false }`
[INFO] [stdout] f7402e75f3fe1dcf2797f8b3413158b7df8ee1d7ed39acc1fe185807f565d127
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] ea200c466689b0664905f3e6a095e98a17afa24a211e6fa33e92fc4ee8bb8318
[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" "ea200c466689b0664905f3e6a095e98a17afa24a211e6fa33e92fc4ee8bb8318", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/flats-9aa4ff4284830d0b
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::flattens_nested_maps ... ok
[INFO] [stdout] test tests::flattens_to_serializable ... ok
[INFO] [stdout] test scalar::tests::string_display ... ok
[INFO] [stdout] test scalar::tests::number_display ... ok
[INFO] [stdout] test scalar::tests::bool_display ... ok
[INFO] [stderr]    Doc-tests flats
[INFO] [stdout] test scalar::tests::null_display ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 5) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ea200c466689b0664905f3e6a095e98a17afa24a211e6fa33e92fc4ee8bb8318", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea200c466689b0664905f3e6a095e98a17afa24a211e6fa33e92fc4ee8bb8318", kill_on_drop: false }`
[INFO] [stdout] ea200c466689b0664905f3e6a095e98a17afa24a211e6fa33e92fc4ee8bb8318