[INFO] fetching crate bitflow 0.5.1...
[INFO] testing bitflow-0.5.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate bitflow 0.5.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate bitflow 0.5.1 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 bitflow 0.5.1
[INFO] finished tweaking crates.io crate bitflow 0.5.1
[INFO] tweaked toml for crates.io crate bitflow 0.5.1 written to /workspace/builds/worker-2/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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9ae8a696f6fa1e5dd2b613fd5f7553a1e8eabe205bdc97e54abb63c179fd87d4
[INFO] running `Command { std: "docker" "start" "-a" "9ae8a696f6fa1e5dd2b613fd5f7553a1e8eabe205bdc97e54abb63c179fd87d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ae8a696f6fa1e5dd2b613fd5f7553a1e8eabe205bdc97e54abb63c179fd87d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ae8a696f6fa1e5dd2b613fd5f7553a1e8eabe205bdc97e54abb63c179fd87d4", kill_on_drop: false }`
[INFO] [stdout] 9ae8a696f6fa1e5dd2b613fd5f7553a1e8eabe205bdc97e54abb63c179fd87d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] d77a6a8fe1974bc5ddc48df5e427436ca7f7f503c8968d239b6b3922da7b292b
[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" "d77a6a8fe1974bc5ddc48df5e427436ca7f7f503c8968d239b6b3922da7b292b", kill_on_drop: false }`
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling openssl v0.10.32
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]    Compiling arrayref v0.3.6
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]    Compiling byte-tools v0.2.0
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling md5 v0.3.8
[INFO] [stderr]    Compiling arc-swap v0.4.8
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling try_from v0.3.2
[INFO] [stderr]    Compiling mimesniff v0.3.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling signal-hook-registry v1.3.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling hostname v0.1.5
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling uname v0.1.1
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]    Compiling rusoto_core v0.39.0
[INFO] [stderr]    Compiling im v12.3.4
[INFO] [stderr]    Compiling sentry v0.12.1
[INFO] [stderr]    Compiling want v0.2.0
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling block-buffer v0.3.3
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling generic-array v0.9.0
[INFO] [stderr]    Compiling sized-chunks v0.1.3
[INFO] [stderr]    Compiling openssl-sys v0.9.60
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling slog-scope v4.3.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling backtrace v0.3.55
[INFO] [stderr]    Compiling flate2 v1.0.19
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling digest v0.7.6
[INFO] [stderr]    Compiling crypto-mac v0.5.2
[INFO] [stderr]    Compiling cookie v0.12.0
[INFO] [stderr]    Compiling publicsuffix v1.5.4
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling tokio-threadpool v0.1.18
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling http v0.1.21
[INFO] [stderr]    Compiling tokio-buf v0.1.1
[INFO] [stderr]    Compiling string v0.2.1
[INFO] [stderr]    Compiling futures-fs v0.0.5
[INFO] [stderr]    Compiling sha2 v0.7.1
[INFO] [stderr]    Compiling hmac v0.5.0
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling serde_urlencoded v0.5.5
[INFO] [stderr]    Compiling url_serde v0.2.0
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling tokio-codec v0.1.2
[INFO] [stderr]    Compiling tokio-fs v0.1.7
[INFO] [stderr]    Compiling dotenv v0.13.0
[INFO] [stderr]    Compiling tokio-reactor v0.1.12
[INFO] [stderr]    Compiling debugid v0.3.1
[INFO] [stderr]    Compiling tokio-uds v0.2.7
[INFO] [stderr]    Compiling tokio-udp v0.1.6
[INFO] [stderr]    Compiling tokio-tcp v0.1.4
[INFO] [stderr]    Compiling tokio-signal v0.2.9
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling tokio-process v0.2.5
[INFO] [stderr]    Compiling cookie_store v0.7.0
[INFO] [stderr]    Compiling sentry-types v0.8.1
[INFO] [stderr]    Compiling slog-json v2.3.0
[INFO] [stderr]    Compiling http-body v0.1.0
[INFO] [stderr]    Compiling h2 v0.1.26
[INFO] [stderr]    Compiling hyper-tls v0.3.2
[INFO] [stderr]    Compiling rusoto_credential v0.39.0
[INFO] [stderr]    Compiling reqwest v0.9.24
[INFO] [stderr]    Compiling rusoto_s3 v0.39.0
[INFO] [stderr]    Compiling bitflow v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 46s
[INFO] running `Command { std: "docker" "inspect" "d77a6a8fe1974bc5ddc48df5e427436ca7f7f503c8968d239b6b3922da7b292b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d77a6a8fe1974bc5ddc48df5e427436ca7f7f503c8968d239b6b3922da7b292b", kill_on_drop: false }`
[INFO] [stdout] d77a6a8fe1974bc5ddc48df5e427436ca7f7f503c8968d239b6b3922da7b292b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 267c344a6eba9040a1784f840f6885956da7e6b55b39801dcccf3b855413a09f
[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" "267c344a6eba9040a1784f840f6885956da7e6b55b39801dcccf3b855413a09f", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflow v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.77s
[INFO] running `Command { std: "docker" "inspect" "267c344a6eba9040a1784f840f6885956da7e6b55b39801dcccf3b855413a09f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "267c344a6eba9040a1784f840f6885956da7e6b55b39801dcccf3b855413a09f", kill_on_drop: false }`
[INFO] [stdout] 267c344a6eba9040a1784f840f6885956da7e6b55b39801dcccf3b855413a09f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 545c2f6a04c14084e5006c9660de509c2a1b34a4a8dfdb3db621a90ad55571f6
[INFO] running `Command { std: "docker" "start" "-a" "545c2f6a04c14084e5006c9660de509c2a1b34a4a8dfdb3db621a90ad55571f6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.39s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/bitflow-41a753babc35d1ef
[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" "545c2f6a04c14084e5006c9660de509c2a1b34a4a8dfdb3db621a90ad55571f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "545c2f6a04c14084e5006c9660de509c2a1b34a4a8dfdb3db621a90ad55571f6", kill_on_drop: false }`
[INFO] [stdout] 545c2f6a04c14084e5006c9660de509c2a1b34a4a8dfdb3db621a90ad55571f6