[INFO] fetching crate sponge-preview 0.2.0...
[INFO] testing sponge-preview-0.2.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate sponge-preview 0.2.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate sponge-preview 0.2.0 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 sponge-preview 0.2.0
[INFO] finished tweaking crates.io crate sponge-preview 0.2.0
[INFO] tweaked toml for crates.io crate sponge-preview 0.2.0 written to /workspace/builds/worker-0/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-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] 46bed249239888a2cdd2f36aa2d96a88dccf03bf9175545dc90427a1f81fb932
[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" "46bed249239888a2cdd2f36aa2d96a88dccf03bf9175545dc90427a1f81fb932", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46bed249239888a2cdd2f36aa2d96a88dccf03bf9175545dc90427a1f81fb932", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46bed249239888a2cdd2f36aa2d96a88dccf03bf9175545dc90427a1f81fb932", kill_on_drop: false }`
[INFO] [stdout] 46bed249239888a2cdd2f36aa2d96a88dccf03bf9175545dc90427a1f81fb932
[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] 0412c6fe72ca79b6c4f7d5d0d493b1c2be9ed040ddc4e9fd160dcbbd73fd0fe9
[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" "0412c6fe72ca79b6c4f7d5d0d493b1c2be9ed040ddc4e9fd160dcbbd73fd0fe9", kill_on_drop: false }`
[INFO] [stderr]    Compiling sponge-preview v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "0412c6fe72ca79b6c4f7d5d0d493b1c2be9ed040ddc4e9fd160dcbbd73fd0fe9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0412c6fe72ca79b6c4f7d5d0d493b1c2be9ed040ddc4e9fd160dcbbd73fd0fe9", kill_on_drop: false }`
[INFO] [stdout] 0412c6fe72ca79b6c4f7d5d0d493b1c2be9ed040ddc4e9fd160dcbbd73fd0fe9
[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] ac0b110e9c2151aa2263a1bc769b1c0793ea23289f5acacc931be4edb7a48407
[INFO] running `Command { std: "docker" "start" "-a" "ac0b110e9c2151aa2263a1bc769b1c0793ea23289f5acacc931be4edb7a48407", kill_on_drop: false }`
[INFO] [stderr]    Compiling sponge-preview v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "ac0b110e9c2151aa2263a1bc769b1c0793ea23289f5acacc931be4edb7a48407", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac0b110e9c2151aa2263a1bc769b1c0793ea23289f5acacc931be4edb7a48407", kill_on_drop: false }`
[INFO] [stdout] ac0b110e9c2151aa2263a1bc769b1c0793ea23289f5acacc931be4edb7a48407
[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] 3a9b6d89650675cc91490dad46cd3b7316eaf2b94bf79d49eaffd25d7678034e
[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" "3a9b6d89650675cc91490dad46cd3b7316eaf2b94bf79d49eaffd25d7678034e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sponge_preview-ca9dcd0db273a777
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sponge-preview
[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" "3a9b6d89650675cc91490dad46cd3b7316eaf2b94bf79d49eaffd25d7678034e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a9b6d89650675cc91490dad46cd3b7316eaf2b94bf79d49eaffd25d7678034e", kill_on_drop: false }`
[INFO] [stdout] 3a9b6d89650675cc91490dad46cd3b7316eaf2b94bf79d49eaffd25d7678034e