[INFO] fetching crate sr-std 1.0.1...
[INFO] testing sr-std-1.0.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate sr-std 1.0.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate sr-std 1.0.1 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 sr-std 1.0.1
[INFO] finished tweaking crates.io crate sr-std 1.0.1
[INFO] tweaked toml for crates.io crate sr-std 1.0.1 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] 3a4d9454b18aba9a1b2c2c0aba7ad7f748bae6ad4076accb34aa8a01a6fc0ac8
[INFO] running `Command { std: "docker" "start" "-a" "3a4d9454b18aba9a1b2c2c0aba7ad7f748bae6ad4076accb34aa8a01a6fc0ac8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a4d9454b18aba9a1b2c2c0aba7ad7f748bae6ad4076accb34aa8a01a6fc0ac8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a4d9454b18aba9a1b2c2c0aba7ad7f748bae6ad4076accb34aa8a01a6fc0ac8", kill_on_drop: false }`
[INFO] [stdout] 3a4d9454b18aba9a1b2c2c0aba7ad7f748bae6ad4076accb34aa8a01a6fc0ac8
[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] 0f27b520f75163a31f2be76e2b8de9f8d88dd57ad88e4cd080eb3e8f28400d22
[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" "0f27b520f75163a31f2be76e2b8de9f8d88dd57ad88e4cd080eb3e8f28400d22", kill_on_drop: false }`
[INFO] [stderr]    Compiling sr-std v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.28s
[INFO] running `Command { std: "docker" "inspect" "0f27b520f75163a31f2be76e2b8de9f8d88dd57ad88e4cd080eb3e8f28400d22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f27b520f75163a31f2be76e2b8de9f8d88dd57ad88e4cd080eb3e8f28400d22", kill_on_drop: false }`
[INFO] [stdout] 0f27b520f75163a31f2be76e2b8de9f8d88dd57ad88e4cd080eb3e8f28400d22
[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] 1afca59f10b551e6e531e5e2b1afcbba108188e6f9eccef2d55fb7c14f17cb72
[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" "1afca59f10b551e6e531e5e2b1afcbba108188e6f9eccef2d55fb7c14f17cb72", kill_on_drop: false }`
[INFO] [stderr]    Compiling sr-std v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "1afca59f10b551e6e531e5e2b1afcbba108188e6f9eccef2d55fb7c14f17cb72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1afca59f10b551e6e531e5e2b1afcbba108188e6f9eccef2d55fb7c14f17cb72", kill_on_drop: false }`
[INFO] [stdout] 1afca59f10b551e6e531e5e2b1afcbba108188e6f9eccef2d55fb7c14f17cb72
[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] [stdout] 9f1e5e146aad8c40b793490640e11c1d21dbb99fe8b1c1028fc7e87878c56588
[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" "9f1e5e146aad8c40b793490640e11c1d21dbb99fe8b1c1028fc7e87878c56588", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sr_std-5187ec36d9418fea
[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] [stderr]    Doc-tests sr-std
[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" "9f1e5e146aad8c40b793490640e11c1d21dbb99fe8b1c1028fc7e87878c56588", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f1e5e146aad8c40b793490640e11c1d21dbb99fe8b1c1028fc7e87878c56588", kill_on_drop: false }`
[INFO] [stdout] 9f1e5e146aad8c40b793490640e11c1d21dbb99fe8b1c1028fc7e87878c56588