[INFO] fetching crate hello-world-x-rust-x-library 0.1.2...
[INFO] testing hello-world-x-rust-x-library-0.1.2 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate hello-world-x-rust-x-library 0.1.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate hello-world-x-rust-x-library 0.1.2 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 hello-world-x-rust-x-library 0.1.2
[INFO] finished tweaking crates.io crate hello-world-x-rust-x-library 0.1.2
[INFO] tweaked toml for crates.io crate hello-world-x-rust-x-library 0.1.2 written to /workspace/builds/worker-8/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b4e06426d548f355bc98581d9db6114f552c0683435147ece0d7dea0c537e7cb
[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" "b4e06426d548f355bc98581d9db6114f552c0683435147ece0d7dea0c537e7cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4e06426d548f355bc98581d9db6114f552c0683435147ece0d7dea0c537e7cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4e06426d548f355bc98581d9db6114f552c0683435147ece0d7dea0c537e7cb", kill_on_drop: false }`
[INFO] [stdout] b4e06426d548f355bc98581d9db6114f552c0683435147ece0d7dea0c537e7cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 02747ead2c58a4db9cf2ab8a13ffdb3353a07523fce58d5ab1c7bc9df2f68239
[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" "02747ead2c58a4db9cf2ab8a13ffdb3353a07523fce58d5ab1c7bc9df2f68239", kill_on_drop: false }`
[INFO] [stderr]    Compiling hello-world-x-rust-x-library v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "02747ead2c58a4db9cf2ab8a13ffdb3353a07523fce58d5ab1c7bc9df2f68239", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02747ead2c58a4db9cf2ab8a13ffdb3353a07523fce58d5ab1c7bc9df2f68239", kill_on_drop: false }`
[INFO] [stdout] 02747ead2c58a4db9cf2ab8a13ffdb3353a07523fce58d5ab1c7bc9df2f68239
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf0bef26971848082f46d7f8c9f23b09e56f37cdf9ddafe78e15b5a9ca9f103a
[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" "cf0bef26971848082f46d7f8c9f23b09e56f37cdf9ddafe78e15b5a9ca9f103a", kill_on_drop: false }`
[INFO] [stderr]    Compiling hello-world-x-rust-x-library v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "cf0bef26971848082f46d7f8c9f23b09e56f37cdf9ddafe78e15b5a9ca9f103a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf0bef26971848082f46d7f8c9f23b09e56f37cdf9ddafe78e15b5a9ca9f103a", kill_on_drop: false }`
[INFO] [stdout] cf0bef26971848082f46d7f8c9f23b09e56f37cdf9ddafe78e15b5a9ca9f103a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8a7423c45bce6e1be8b63b53e536f32a895bebbd3a14af1c16d2b8c34f76d45c
[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" "8a7423c45bce6e1be8b63b53e536f32a895bebbd3a14af1c16d2b8c34f76d45c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/hello_world_x_rust_x_library-6c7a839291d56f1c
[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] [stderr]    Doc-tests hello-world-x-rust-x-library
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - greet (line 17) ... ok
[INFO] [stdout] test src/lib.rs - greet (line 9) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.78s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8a7423c45bce6e1be8b63b53e536f32a895bebbd3a14af1c16d2b8c34f76d45c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a7423c45bce6e1be8b63b53e536f32a895bebbd3a14af1c16d2b8c34f76d45c", kill_on_drop: false }`
[INFO] [stdout] 8a7423c45bce6e1be8b63b53e536f32a895bebbd3a14af1c16d2b8c34f76d45c