[INFO] fetching crate push-trait 0.6.0...
[INFO] testing push-trait-0.6.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate push-trait 0.6.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate push-trait 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 push-trait 0.6.0
[INFO] finished tweaking crates.io crate push-trait 0.6.0
[INFO] tweaked toml for crates.io crate push-trait 0.6.0 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] 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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3069f6596918895b01972bc3124c1d2f331b3fc57f91921d67b1a0a3aed851d4
[INFO] running `Command { std: "docker" "start" "-a" "3069f6596918895b01972bc3124c1d2f331b3fc57f91921d67b1a0a3aed851d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3069f6596918895b01972bc3124c1d2f331b3fc57f91921d67b1a0a3aed851d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3069f6596918895b01972bc3124c1d2f331b3fc57f91921d67b1a0a3aed851d4", kill_on_drop: false }`
[INFO] [stdout] 3069f6596918895b01972bc3124c1d2f331b3fc57f91921d67b1a0a3aed851d4
[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] 1aaff8ba776f54202f4c6679a13683c3a960fe4977171bd01ceb8d2d5e95ed37
[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" "1aaff8ba776f54202f4c6679a13683c3a960fe4977171bd01ceb8d2d5e95ed37", kill_on_drop: false }`
[INFO] [stderr]    Compiling len-trait v0.6.1
[INFO] [stderr]    Compiling push-trait v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.63s
[INFO] running `Command { std: "docker" "inspect" "1aaff8ba776f54202f4c6679a13683c3a960fe4977171bd01ceb8d2d5e95ed37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1aaff8ba776f54202f4c6679a13683c3a960fe4977171bd01ceb8d2d5e95ed37", kill_on_drop: false }`
[INFO] [stdout] 1aaff8ba776f54202f4c6679a13683c3a960fe4977171bd01ceb8d2d5e95ed37
[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] 6ad6cedc3b288ba82caac2f03f986de4e6bad23a5f3805625a1b3e34bf41c04e
[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" "6ad6cedc3b288ba82caac2f03f986de4e6bad23a5f3805625a1b3e34bf41c04e", kill_on_drop: false }`
[INFO] [stderr]    Compiling push-trait v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "6ad6cedc3b288ba82caac2f03f986de4e6bad23a5f3805625a1b3e34bf41c04e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ad6cedc3b288ba82caac2f03f986de4e6bad23a5f3805625a1b3e34bf41c04e", kill_on_drop: false }`
[INFO] [stdout] 6ad6cedc3b288ba82caac2f03f986de4e6bad23a5f3805625a1b3e34bf41c04e
[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] a49bded4e2cf59898bf6e9fc2f169feb751f9a6892687581afc362e485622268
[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" "a49bded4e2cf59898bf6e9fc2f169feb751f9a6892687581afc362e485622268", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/push_trait-6bff6e9919cc7f81
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests push-trait
[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" "a49bded4e2cf59898bf6e9fc2f169feb751f9a6892687581afc362e485622268", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a49bded4e2cf59898bf6e9fc2f169feb751f9a6892687581afc362e485622268", kill_on_drop: false }`
[INFO] [stdout] a49bded4e2cf59898bf6e9fc2f169feb751f9a6892687581afc362e485622268