[INFO] fetching crate dull 1.0.0...
[INFO] testing dull-1.0.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate dull 1.0.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate dull 1.0.0 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 dull 1.0.0
[INFO] finished tweaking crates.io crate dull 1.0.0
[INFO] tweaked toml for crates.io crate dull 1.0.0 written to /workspace/builds/worker-6/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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stdout] 34e4c661668b334805f4cfcc6d7b236d9aa67513cb51d9cbbeea7e1a8448fa59
[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" "34e4c661668b334805f4cfcc6d7b236d9aa67513cb51d9cbbeea7e1a8448fa59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34e4c661668b334805f4cfcc6d7b236d9aa67513cb51d9cbbeea7e1a8448fa59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34e4c661668b334805f4cfcc6d7b236d9aa67513cb51d9cbbeea7e1a8448fa59", kill_on_drop: false }`
[INFO] [stdout] 34e4c661668b334805f4cfcc6d7b236d9aa67513cb51d9cbbeea7e1a8448fa59
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a9a9ef14c294c03f5f21d256b825c9885de6c63e4b8cdeec9eca64e80a731a66
[INFO] running `Command { std: "docker" "start" "-a" "a9a9ef14c294c03f5f21d256b825c9885de6c63e4b8cdeec9eca64e80a731a66", kill_on_drop: false }`
[INFO] [stderr]    Compiling dull v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "a9a9ef14c294c03f5f21d256b825c9885de6c63e4b8cdeec9eca64e80a731a66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9a9ef14c294c03f5f21d256b825c9885de6c63e4b8cdeec9eca64e80a731a66", kill_on_drop: false }`
[INFO] [stdout] a9a9ef14c294c03f5f21d256b825c9885de6c63e4b8cdeec9eca64e80a731a66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] b5b394258dd365d9697fe51ab115174e0c4d03dee191b09703f745f78f6486a0
[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" "b5b394258dd365d9697fe51ab115174e0c4d03dee191b09703f745f78f6486a0", kill_on_drop: false }`
[INFO] [stderr]    Compiling dull v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "b5b394258dd365d9697fe51ab115174e0c4d03dee191b09703f745f78f6486a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5b394258dd365d9697fe51ab115174e0c4d03dee191b09703f745f78f6486a0", kill_on_drop: false }`
[INFO] [stdout] b5b394258dd365d9697fe51ab115174e0c4d03dee191b09703f745f78f6486a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] e4eabc6580c492de2ec7dfdb5dca2834126ccd1a89b6c869be2b1d333a67f93f
[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" "e4eabc6580c492de2ec7dfdb5dca2834126ccd1a89b6c869be2b1d333a67f93f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/dull-4bb7f6fbc1f5f263
[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" "e4eabc6580c492de2ec7dfdb5dca2834126ccd1a89b6c869be2b1d333a67f93f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4eabc6580c492de2ec7dfdb5dca2834126ccd1a89b6c869be2b1d333a67f93f", kill_on_drop: false }`
[INFO] [stdout] e4eabc6580c492de2ec7dfdb5dca2834126ccd1a89b6c869be2b1d333a67f93f