[INFO] fetching crate uf2_block 0.1.0...
[INFO] testing uf2_block-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate uf2_block 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate uf2_block 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 uf2_block 0.1.0
[INFO] finished tweaking crates.io crate uf2_block 0.1.0
[INFO] tweaked toml for crates.io crate uf2_block 0.1.0 written to /workspace/builds/worker-1/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] eeba25a3e7340ed5be40f3561cb69e6cc7e3c5506c46d30985da7a9d47134236
[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" "eeba25a3e7340ed5be40f3561cb69e6cc7e3c5506c46d30985da7a9d47134236", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eeba25a3e7340ed5be40f3561cb69e6cc7e3c5506c46d30985da7a9d47134236", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eeba25a3e7340ed5be40f3561cb69e6cc7e3c5506c46d30985da7a9d47134236", kill_on_drop: false }`
[INFO] [stdout] eeba25a3e7340ed5be40f3561cb69e6cc7e3c5506c46d30985da7a9d47134236
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 2082d04246fa314b79a0aef01dd53468ad0dec1a7afd40854e8c718446cde815
[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" "2082d04246fa314b79a0aef01dd53468ad0dec1a7afd40854e8c718446cde815", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitmask v0.5.0
[INFO] [stderr]    Compiling packing_codegen v0.1.0
[INFO] [stderr]    Compiling packing v0.1.0
[INFO] [stderr]    Compiling uf2_block v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.06s
[INFO] running `Command { std: "docker" "inspect" "2082d04246fa314b79a0aef01dd53468ad0dec1a7afd40854e8c718446cde815", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2082d04246fa314b79a0aef01dd53468ad0dec1a7afd40854e8c718446cde815", kill_on_drop: false }`
[INFO] [stdout] 2082d04246fa314b79a0aef01dd53468ad0dec1a7afd40854e8c718446cde815
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 86f2a5985d4f1ef6b08e3a3a1d873a4e76714cc89219a0160a296f411af0dba0
[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" "86f2a5985d4f1ef6b08e3a3a1d873a4e76714cc89219a0160a296f411af0dba0", kill_on_drop: false }`
[INFO] [stderr]    Compiling uf2_block v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `Command { std: "docker" "inspect" "86f2a5985d4f1ef6b08e3a3a1d873a4e76714cc89219a0160a296f411af0dba0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86f2a5985d4f1ef6b08e3a3a1d873a4e76714cc89219a0160a296f411af0dba0", kill_on_drop: false }`
[INFO] [stdout] 86f2a5985d4f1ef6b08e3a3a1d873a4e76714cc89219a0160a296f411af0dba0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 37c9466fc819e81a1c11843113a2e462077e60e7dec120c4b31b03f674b74914
[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" "37c9466fc819e81a1c11843113a2e462077e60e7dec120c4b31b03f674b74914", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/uf2_block-42d8a96c1b280ad7
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests uf2_block
[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" "37c9466fc819e81a1c11843113a2e462077e60e7dec120c4b31b03f674b74914", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37c9466fc819e81a1c11843113a2e462077e60e7dec120c4b31b03f674b74914", kill_on_drop: false }`
[INFO] [stdout] 37c9466fc819e81a1c11843113a2e462077e60e7dec120c4b31b03f674b74914