[INFO] fetching crate if_empty 0.3.0...
[INFO] testing if_empty-0.3.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate if_empty 0.3.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate if_empty 0.3.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate if_empty 0.3.0
[INFO] finished tweaking crates.io crate if_empty 0.3.0
[INFO] tweaked toml for crates.io crate if_empty 0.3.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate if_empty 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.28
[INFO] [stderr]   Downloaded syn v1.0.74
[INFO] [stderr]   Downloaded if_empty_derive v0.1.0
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d3d49ead6aa4fdf18d5b5a82be22e812b2ef1cb5b9eb0b7b616b6f009b75c06a
[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" "d3d49ead6aa4fdf18d5b5a82be22e812b2ef1cb5b9eb0b7b616b6f009b75c06a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3d49ead6aa4fdf18d5b5a82be22e812b2ef1cb5b9eb0b7b616b6f009b75c06a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3d49ead6aa4fdf18d5b5a82be22e812b2ef1cb5b9eb0b7b616b6f009b75c06a", kill_on_drop: false }`
[INFO] [stdout] d3d49ead6aa4fdf18d5b5a82be22e812b2ef1cb5b9eb0b7b616b6f009b75c06a
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--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] 31c2b7bd8bd7787dd940e1dd8d4de0398d4cd38820f5120b9e8e765d49229666
[INFO] running `Command { std: "docker" "start" "-a" "31c2b7bd8bd7787dd940e1dd8d4de0398d4cd38820f5120b9e8e765d49229666", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling if_empty_derive v0.1.0
[INFO] [stderr]    Compiling if_empty v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.60s
[INFO] running `Command { std: "docker" "inspect" "31c2b7bd8bd7787dd940e1dd8d4de0398d4cd38820f5120b9e8e765d49229666", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31c2b7bd8bd7787dd940e1dd8d4de0398d4cd38820f5120b9e8e765d49229666", kill_on_drop: false }`
[INFO] [stdout] 31c2b7bd8bd7787dd940e1dd8d4de0398d4cd38820f5120b9e8e765d49229666
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "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] 169963b38c239d7a99e2085d77a1f45ca20af5b6a043c20e89122890a501c13c
[INFO] running `Command { std: "docker" "start" "-a" "169963b38c239d7a99e2085d77a1f45ca20af5b6a043c20e89122890a501c13c", kill_on_drop: false }`
[INFO] [stderr]    Compiling if_empty v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `Command { std: "docker" "inspect" "169963b38c239d7a99e2085d77a1f45ca20af5b6a043c20e89122890a501c13c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "169963b38c239d7a99e2085d77a1f45ca20af5b6a043c20e89122890a501c13c", kill_on_drop: false }`
[INFO] [stdout] 169963b38c239d7a99e2085d77a1f45ca20af5b6a043c20e89122890a501c13c
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "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] a5638652a5729f4c13847e8bc12b4204bd18d01b9ad2833e3bcec6d3ffa0d481
[INFO] running `Command { std: "docker" "start" "-a" "a5638652a5729f4c13847e8bc12b4204bd18d01b9ad2833e3bcec6d3ffa0d481", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::os_str ... ok
[INFO] [stdout] test tests::os_string ... ok
[INFO] [stdout] test tests::str ... ok
[INFO] [stdout] test tests::derive_macro ... ok
[INFO] [stdout] test tests::custom ... ok
[INFO] [stdout] test tests::string ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/if_empty-568b9b80e8ee2456)
[INFO] [stderr]    Doc-tests if_empty
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 59) ... ok
[INFO] [stdout] test src/lib.rs - (line 19) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.61s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a5638652a5729f4c13847e8bc12b4204bd18d01b9ad2833e3bcec6d3ffa0d481", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5638652a5729f4c13847e8bc12b4204bd18d01b9ad2833e3bcec6d3ffa0d481", kill_on_drop: false }`
[INFO] [stdout] a5638652a5729f4c13847e8bc12b4204bd18d01b9ad2833e3bcec6d3ffa0d481