[INFO] fetching crate aktoro-helpers 0.0.0...
[INFO] testing aktoro-helpers-0.0.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate aktoro-helpers 0.0.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate aktoro-helpers 0.0.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate aktoro-helpers 0.0.0
[INFO] finished tweaking crates.io crate aktoro-helpers 0.0.0
[INFO] tweaked toml for crates.io crate aktoro-helpers 0.0.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e185ed5efe7ce9f39222e00a622b6bf6c3e641ba5cdd87a13879e85cf7b94b70
[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" "e185ed5efe7ce9f39222e00a622b6bf6c3e641ba5cdd87a13879e85cf7b94b70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e185ed5efe7ce9f39222e00a622b6bf6c3e641ba5cdd87a13879e85cf7b94b70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e185ed5efe7ce9f39222e00a622b6bf6c3e641ba5cdd87a13879e85cf7b94b70", kill_on_drop: false }`
[INFO] [stdout] e185ed5efe7ce9f39222e00a622b6bf6c3e641ba5cdd87a13879e85cf7b94b70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 02b9802b59b0c13170486b4e13264f4b3b72ad43d71e73b1b9ed2abc13713118
[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" "02b9802b59b0c13170486b4e13264f4b3b72ad43d71e73b1b9ed2abc13713118", kill_on_drop: false }`
[INFO] [stderr]    Compiling aktoro-helpers v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "02b9802b59b0c13170486b4e13264f4b3b72ad43d71e73b1b9ed2abc13713118", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02b9802b59b0c13170486b4e13264f4b3b72ad43d71e73b1b9ed2abc13713118", kill_on_drop: false }`
[INFO] [stdout] 02b9802b59b0c13170486b4e13264f4b3b72ad43d71e73b1b9ed2abc13713118
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] 847fb616c93d0079989288e1e8ad290ed8b90a669d95bac2fe465fee8e59d8db
[INFO] running `Command { std: "docker" "start" "-a" "847fb616c93d0079989288e1e8ad290ed8b90a669d95bac2fe465fee8e59d8db", kill_on_drop: false }`
[INFO] [stderr]    Compiling aktoro-helpers v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "847fb616c93d0079989288e1e8ad290ed8b90a669d95bac2fe465fee8e59d8db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "847fb616c93d0079989288e1e8ad290ed8b90a669d95bac2fe465fee8e59d8db", kill_on_drop: false }`
[INFO] [stdout] 847fb616c93d0079989288e1e8ad290ed8b90a669d95bac2fe465fee8e59d8db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", 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] df81c28eb95e89ab2b10399b6b14041bdfa39aa70cdc5266e555531e7ec40dbd
[INFO] running `Command { std: "docker" "start" "-a" "df81c28eb95e89ab2b10399b6b14041bdfa39aa70cdc5266e555531e7ec40dbd", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/aktoro_helpers-0323e48af9d57f3b
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests aktoro-helpers
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "df81c28eb95e89ab2b10399b6b14041bdfa39aa70cdc5266e555531e7ec40dbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df81c28eb95e89ab2b10399b6b14041bdfa39aa70cdc5266e555531e7ec40dbd", kill_on_drop: false }`
[INFO] [stdout] df81c28eb95e89ab2b10399b6b14041bdfa39aa70cdc5266e555531e7ec40dbd