[INFO] fetching crate roof 0.6.0...
[INFO] testing roof-0.6.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate roof 0.6.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate roof 0.6.0 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 roof 0.6.0
[INFO] finished tweaking crates.io crate roof 0.6.0
[INFO] tweaked toml for crates.io crate roof 0.6.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate roof 0.6.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] 92eada9a7fa4010164ed3279f8ac6939837d9c5babeb8bc3089b71d19cbeefc8
[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" "92eada9a7fa4010164ed3279f8ac6939837d9c5babeb8bc3089b71d19cbeefc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92eada9a7fa4010164ed3279f8ac6939837d9c5babeb8bc3089b71d19cbeefc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92eada9a7fa4010164ed3279f8ac6939837d9c5babeb8bc3089b71d19cbeefc8", kill_on_drop: false }`
[INFO] [stdout] 92eada9a7fa4010164ed3279f8ac6939837d9c5babeb8bc3089b71d19cbeefc8
[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] 2bd3e54e8aaebec86c11db16ec1c3f572d6e7ea1d7d034b7b3976f0c65c5dce9
[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" "2bd3e54e8aaebec86c11db16ec1c3f572d6e7ea1d7d034b7b3976f0c65c5dce9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling cc v1.0.52
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling arc-swap v0.4.6
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling openssl v0.10.29
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling encoding_rs v0.8.22
[INFO] [stderr]    Compiling futures v0.1.29
[INFO] [stderr]    Compiling anyhow v1.0.28
[INFO] [stderr]    Compiling adler32 v1.0.4
[INFO] [stderr]    Compiling number_prefix v0.3.0
[INFO] [stderr]    Compiling futures-util v0.3.4
[INFO] [stderr]    Compiling miniz_oxide v0.3.6
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling signal-hook-registry v1.2.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling clicolors-control v1.0.1
[INFO] [stderr]    Compiling termios v0.3.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling filetime v0.2.9
[INFO] [stderr]    Compiling flate2 v1.0.14
[INFO] [stderr]    Compiling openssl-sys v0.9.55
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling regex v1.3.7
[INFO] [stderr]    Compiling tar v0.4.26
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling tokio-codec v0.1.2
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling console v0.10.0
[INFO] [stderr]    Compiling indicatif v0.14.0
[INFO] [stderr]    Compiling serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling pin-project-internal v0.4.9
[INFO] [stderr]    Compiling tokio v0.2.19
[INFO] [stderr]    Compiling pin-project v0.4.9
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling tokio-tls v0.3.0
[INFO] [stderr]    Compiling h2 v0.2.4
[INFO] [stderr]    Compiling hyper v0.13.5
[INFO] [stderr]    Compiling hyper-tls v0.4.1
[INFO] [stderr]    Compiling reqwest v0.10.4
[INFO] [stderr]    Compiling roof v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 39s
[INFO] running `Command { std: "docker" "inspect" "2bd3e54e8aaebec86c11db16ec1c3f572d6e7ea1d7d034b7b3976f0c65c5dce9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bd3e54e8aaebec86c11db16ec1c3f572d6e7ea1d7d034b7b3976f0c65c5dce9", kill_on_drop: false }`
[INFO] [stdout] 2bd3e54e8aaebec86c11db16ec1c3f572d6e7ea1d7d034b7b3976f0c65c5dce9
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1d6f541d0529dd7b3cba40ac1d7700a2864d0dc749c6dbb6e3ac4e6b27ba9de7
[INFO] running `Command { std: "docker" "start" "-a" "1d6f541d0529dd7b3cba40ac1d7700a2864d0dc749c6dbb6e3ac4e6b27ba9de7", kill_on_drop: false }`
[INFO] [stderr]    Compiling roof v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `Command { std: "docker" "inspect" "1d6f541d0529dd7b3cba40ac1d7700a2864d0dc749c6dbb6e3ac4e6b27ba9de7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d6f541d0529dd7b3cba40ac1d7700a2864d0dc749c6dbb6e3ac4e6b27ba9de7", kill_on_drop: false }`
[INFO] [stdout] 1d6f541d0529dd7b3cba40ac1d7700a2864d0dc749c6dbb6e3ac4e6b27ba9de7
[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] 408a78e1f6469cd7470b7f758a916c2837353e76c2c029bc03ad50b111355998
[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" "408a78e1f6469cd7470b7f758a916c2837353e76c2c029bc03ad50b111355998", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/roof-fed99e086aab61f3
[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" "408a78e1f6469cd7470b7f758a916c2837353e76c2c029bc03ad50b111355998", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "408a78e1f6469cd7470b7f758a916c2837353e76c2c029bc03ad50b111355998", kill_on_drop: false }`
[INFO] [stdout] 408a78e1f6469cd7470b7f758a916c2837353e76c2c029bc03ad50b111355998