[INFO] fetching crate gain 0.2.1...
[INFO] checking gain-0.2.1 against try#075992eda207e1647b699c8c8ada67b32ce7b115 for pr-77271
[INFO] extracting crate gain 0.2.1 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate gain 0.2.1 on toolchain 075992eda207e1647b699c8c8ada67b32ce7b115
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gain 0.2.1
[INFO] finished tweaking crates.io crate gain 0.2.1
[INFO] tweaked toml for crates.io crate gain 0.2.1 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 43a9645e57f1ceaf20a8571a601edec3a39271339521f3b816d52074cf87e4d6
[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" "43a9645e57f1ceaf20a8571a601edec3a39271339521f3b816d52074cf87e4d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43a9645e57f1ceaf20a8571a601edec3a39271339521f3b816d52074cf87e4d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43a9645e57f1ceaf20a8571a601edec3a39271339521f3b816d52074cf87e4d6", kill_on_drop: false }`
[INFO] [stdout] 43a9645e57f1ceaf20a8571a601edec3a39271339521f3b816d52074cf87e4d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=forbid" "-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5cea1328df1cfa81dd3bfafdbf8a9f1cb6d2af9cf1553045534c6eea54cba350
[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" "5cea1328df1cfa81dd3bfafdbf8a9f1cb6d2af9cf1553045534c6eea54cba350", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]     Checking async-task v1.3.1
[INFO] [stderr]     Checking gain v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.32s
[INFO] running `Command { std: "docker" "inspect" "5cea1328df1cfa81dd3bfafdbf8a9f1cb6d2af9cf1553045534c6eea54cba350", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cea1328df1cfa81dd3bfafdbf8a9f1cb6d2af9cf1553045534c6eea54cba350", kill_on_drop: false }`
[INFO] [stdout] 5cea1328df1cfa81dd3bfafdbf8a9f1cb6d2af9cf1553045534c6eea54cba350