[INFO] fetching crate waterfall 0.7.1...
[INFO] testing waterfall-0.7.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate waterfall 0.7.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate waterfall 0.7.1 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 waterfall 0.7.1
[INFO] finished tweaking crates.io crate waterfall 0.7.1
[INFO] tweaked toml for crates.io crate waterfall 0.7.1 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] [stderr]     Blocking waiting for file lock on package cache
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c6aa8ece542218b11913166c75bf5a8ca785a0111e9112545e4d74841ad1aa3
[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" "9c6aa8ece542218b11913166c75bf5a8ca785a0111e9112545e4d74841ad1aa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c6aa8ece542218b11913166c75bf5a8ca785a0111e9112545e4d74841ad1aa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c6aa8ece542218b11913166c75bf5a8ca785a0111e9112545e4d74841ad1aa3", kill_on_drop: false }`
[INFO] [stdout] 9c6aa8ece542218b11913166c75bf5a8ca785a0111e9112545e4d74841ad1aa3
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4fa2963fa52305131ff4f484a7e05b40ea26adb7048e284becb0ad8de1d1769
[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" "f4fa2963fa52305131ff4f484a7e05b40ea26adb7048e284becb0ad8de1d1769", kill_on_drop: false }`
[INFO] [stderr]    Compiling odds v0.2.26
[INFO] [stderr]    Compiling byteorder v0.4.2
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling inflate v0.2.0
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling histogram v0.6.9
[INFO] [stderr]    Compiling hsl v0.1.1
[INFO] [stderr]    Compiling heatmap v0.6.6
[INFO] [stderr]    Compiling stb_truetype v0.1.2
[INFO] [stderr]    Compiling arrayvec v0.3.25
[INFO] [stderr]    Compiling rusttype v0.1.2
[INFO] [stderr]    Compiling png v0.7.0
[INFO] [stderr]    Compiling waterfall v0.7.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.22s
[INFO] running `Command { std: "docker" "inspect" "f4fa2963fa52305131ff4f484a7e05b40ea26adb7048e284becb0ad8de1d1769", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4fa2963fa52305131ff4f484a7e05b40ea26adb7048e284becb0ad8de1d1769", kill_on_drop: false }`
[INFO] [stdout] f4fa2963fa52305131ff4f484a7e05b40ea26adb7048e284becb0ad8de1d1769
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7eeede9dc6733893b166dde4f2615cd4913c5a976ea6dd253437175d8cc0549c
[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" "7eeede9dc6733893b166dde4f2615cd4913c5a976ea6dd253437175d8cc0549c", kill_on_drop: false }`
[INFO] [stderr]    Compiling waterfall v0.7.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `Command { std: "docker" "inspect" "7eeede9dc6733893b166dde4f2615cd4913c5a976ea6dd253437175d8cc0549c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7eeede9dc6733893b166dde4f2615cd4913c5a976ea6dd253437175d8cc0549c", kill_on_drop: false }`
[INFO] [stdout] 7eeede9dc6733893b166dde4f2615cd4913c5a976ea6dd253437175d8cc0549c
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d8c263c4e1296052304824e555fca961299d5b49f3d36b3822b7ea39d8a95588
[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" "d8c263c4e1296052304824e555fca961299d5b49f3d36b3822b7ea39d8a95588", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/waterfall-7d346e6166dd8719
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests waterfall
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 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" "d8c263c4e1296052304824e555fca961299d5b49f3d36b3822b7ea39d8a95588", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8c263c4e1296052304824e555fca961299d5b49f3d36b3822b7ea39d8a95588", kill_on_drop: false }`
[INFO] [stdout] d8c263c4e1296052304824e555fca961299d5b49f3d36b3822b7ea39d8a95588