[INFO] fetching crate downloads 0.0.2...
[INFO] testing downloads-0.0.2 against 1.49.0 for beta-1.50-1
[INFO] extracting crate downloads 0.0.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate downloads 0.0.2 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 downloads 0.0.2
[INFO] finished tweaking crates.io crate downloads 0.0.2
[INFO] tweaked toml for crates.io crate downloads 0.0.2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate downloads 0.0.2 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 4a1eab1c522cd1a2183a250418104a91769e5e146ceb29cea386af797bc8bcf6
[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" "4a1eab1c522cd1a2183a250418104a91769e5e146ceb29cea386af797bc8bcf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a1eab1c522cd1a2183a250418104a91769e5e146ceb29cea386af797bc8bcf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a1eab1c522cd1a2183a250418104a91769e5e146ceb29cea386af797bc8bcf6", kill_on_drop: false }`
[INFO] [stdout] 4a1eab1c522cd1a2183a250418104a91769e5e146ceb29cea386af797bc8bcf6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] c0f9db24963a39c3ad517bf5d1a8b6daf3ff2bfa8eb66468fa4b56b6231c3e78
[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" "c0f9db24963a39c3ad517bf5d1a8b6daf3ff2bfa8eb66468fa4b56b6231c3e78", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]    Compiling curl v0.4.23
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling curl-sys v0.4.21
[INFO] [stderr]    Compiling openssl-sys v0.9.49
[INFO] [stderr]    Compiling socket2 v0.3.11
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling downloads v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.24s
[INFO] running `Command { std: "docker" "inspect" "c0f9db24963a39c3ad517bf5d1a8b6daf3ff2bfa8eb66468fa4b56b6231c3e78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0f9db24963a39c3ad517bf5d1a8b6daf3ff2bfa8eb66468fa4b56b6231c3e78", kill_on_drop: false }`
[INFO] [stdout] c0f9db24963a39c3ad517bf5d1a8b6daf3ff2bfa8eb66468fa4b56b6231c3e78
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] faa70bb7be2992e207f9b6a6f45efa01677fd18dfd86147ee0df88e65afeaec2
[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" "faa70bb7be2992e207f9b6a6f45efa01677fd18dfd86147ee0df88e65afeaec2", kill_on_drop: false }`
[INFO] [stderr]    Compiling downloads v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.01s
[INFO] running `Command { std: "docker" "inspect" "faa70bb7be2992e207f9b6a6f45efa01677fd18dfd86147ee0df88e65afeaec2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "faa70bb7be2992e207f9b6a6f45efa01677fd18dfd86147ee0df88e65afeaec2", kill_on_drop: false }`
[INFO] [stdout] faa70bb7be2992e207f9b6a6f45efa01677fd18dfd86147ee0df88e65afeaec2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 14adf00efb84fe20747e3126041771b8c059adf49e4ee1a7ca57d725a8069b0a
[INFO] running `Command { std: "docker" "start" "-a" "14adf00efb84fe20747e3126041771b8c059adf49e4ee1a7ca57d725a8069b0a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/downloads-832009783cc94fce
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests downloads
[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] [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" "14adf00efb84fe20747e3126041771b8c059adf49e4ee1a7ca57d725a8069b0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14adf00efb84fe20747e3126041771b8c059adf49e4ee1a7ca57d725a8069b0a", kill_on_drop: false }`
[INFO] [stdout] 14adf00efb84fe20747e3126041771b8c059adf49e4ee1a7ca57d725a8069b0a