[INFO] fetching crate graviton_frontend 0.6.0...
[INFO] testing graviton_frontend-0.6.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate graviton_frontend 0.6.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate graviton_frontend 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 graviton_frontend 0.6.0
[INFO] finished tweaking crates.io crate graviton_frontend 0.6.0
[INFO] tweaked toml for crates.io crate graviton_frontend 0.6.0 written to /workspace/builds/worker-6/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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] abd2db4b28a7951ba8ea04a798778f3c67bdd23ff70d6a88c598b824812e4b39
[INFO] running `Command { std: "docker" "start" "-a" "abd2db4b28a7951ba8ea04a798778f3c67bdd23ff70d6a88c598b824812e4b39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "abd2db4b28a7951ba8ea04a798778f3c67bdd23ff70d6a88c598b824812e4b39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abd2db4b28a7951ba8ea04a798778f3c67bdd23ff70d6a88c598b824812e4b39", kill_on_drop: false }`
[INFO] [stdout] abd2db4b28a7951ba8ea04a798778f3c67bdd23ff70d6a88c598b824812e4b39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 3d5943d989e5061c4ca61307c1e9af457d6c50221a3fef1a10f3a1150c5ff3e0
[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" "3d5943d989e5061c4ca61307c1e9af457d6c50221a3fef1a10f3a1150c5ff3e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling graviton_core v0.6.0
[INFO] [stderr]    Compiling graviton_ast v0.6.0
[INFO] [stderr]    Compiling graviton_frontend v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.52s
[INFO] running `Command { std: "docker" "inspect" "3d5943d989e5061c4ca61307c1e9af457d6c50221a3fef1a10f3a1150c5ff3e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d5943d989e5061c4ca61307c1e9af457d6c50221a3fef1a10f3a1150c5ff3e0", kill_on_drop: false }`
[INFO] [stdout] 3d5943d989e5061c4ca61307c1e9af457d6c50221a3fef1a10f3a1150c5ff3e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 8bac0b95d875571e500fa431fb07486ec4227299ed631da6af506ee22f121b77
[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" "8bac0b95d875571e500fa431fb07486ec4227299ed631da6af506ee22f121b77", kill_on_drop: false }`
[INFO] [stderr]    Compiling graviton_frontend v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.84s
[INFO] running `Command { std: "docker" "inspect" "8bac0b95d875571e500fa431fb07486ec4227299ed631da6af506ee22f121b77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bac0b95d875571e500fa431fb07486ec4227299ed631da6af506ee22f121b77", kill_on_drop: false }`
[INFO] [stdout] 8bac0b95d875571e500fa431fb07486ec4227299ed631da6af506ee22f121b77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 04dedbb146a588a8557ddbda3c7ec2a4bbf5abd2ebec4288d60daf36cd4a9949
[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" "04dedbb146a588a8557ddbda3c7ec2a4bbf5abd2ebec4288d60daf36cd4a9949", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/graviton_frontend-a6236c3da4d40337
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests graviton_frontend
[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" "04dedbb146a588a8557ddbda3c7ec2a4bbf5abd2ebec4288d60daf36cd4a9949", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04dedbb146a588a8557ddbda3c7ec2a4bbf5abd2ebec4288d60daf36cd4a9949", kill_on_drop: false }`
[INFO] [stdout] 04dedbb146a588a8557ddbda3c7ec2a4bbf5abd2ebec4288d60daf36cd4a9949