[INFO] fetching crate tskit-derive 0.2.0...
[INFO] testing tskit-derive-0.2.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate tskit-derive 0.2.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate tskit-derive 0.2.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tskit-derive 0.2.0
[INFO] finished tweaking crates.io crate tskit-derive 0.2.0
[INFO] tweaked toml for crates.io crate tskit-derive 0.2.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2022-04-10" "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] 8bdd37ad4bc3982978475059adb4088dff290e072332ce52a00dbd41feb3d904
[INFO] running `Command { std: "docker" "start" "-a" "8bdd37ad4bc3982978475059adb4088dff290e072332ce52a00dbd41feb3d904", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8bdd37ad4bc3982978475059adb4088dff290e072332ce52a00dbd41feb3d904", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bdd37ad4bc3982978475059adb4088dff290e072332ce52a00dbd41feb3d904", kill_on_drop: false }`
[INFO] [stdout] 8bdd37ad4bc3982978475059adb4088dff290e072332ce52a00dbd41feb3d904
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a69c3c0ea95c3467bcded08d4716b1ea74400ef7f58cb75334ffcb8d43eebf17
[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" "a69c3c0ea95c3467bcded08d4716b1ea74400ef7f58cb75334ffcb8d43eebf17", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling tskit-derive v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.48s
[INFO] running `Command { std: "docker" "inspect" "a69c3c0ea95c3467bcded08d4716b1ea74400ef7f58cb75334ffcb8d43eebf17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a69c3c0ea95c3467bcded08d4716b1ea74400ef7f58cb75334ffcb8d43eebf17", kill_on_drop: false }`
[INFO] [stdout] a69c3c0ea95c3467bcded08d4716b1ea74400ef7f58cb75334ffcb8d43eebf17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2022-04-10" "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] 9be70d0c537a8b7b4eb3615f9d8b03b376b094b3b49f2f8005cde661b3c77a3b
[INFO] running `Command { std: "docker" "start" "-a" "9be70d0c537a8b7b4eb3615f9d8b03b376b094b3b49f2f8005cde661b3c77a3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling tskit-derive v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.85s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/tskit_derive-c0e1ed687cd30bcb)
[INFO] running `Command { std: "docker" "inspect" "9be70d0c537a8b7b4eb3615f9d8b03b376b094b3b49f2f8005cde661b3c77a3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9be70d0c537a8b7b4eb3615f9d8b03b376b094b3b49f2f8005cde661b3c77a3b", kill_on_drop: false }`
[INFO] [stdout] 9be70d0c537a8b7b4eb3615f9d8b03b376b094b3b49f2f8005cde661b3c77a3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2022-04-10" "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] 088049419f51aa759dc5c09d32c1e6b1a3b083ecd506d5daec2f514ec7bcd5c1
[INFO] running `Command { std: "docker" "start" "-a" "088049419f51aa759dc5c09d32c1e6b1a3b083ecd506d5daec2f514ec7bcd5c1", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tskit_derive-c0e1ed687cd30bcb)
[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 tskit-derive
[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" "088049419f51aa759dc5c09d32c1e6b1a3b083ecd506d5daec2f514ec7bcd5c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "088049419f51aa759dc5c09d32c1e6b1a3b083ecd506d5daec2f514ec7bcd5c1", kill_on_drop: false }`
[INFO] [stdout] 088049419f51aa759dc5c09d32c1e6b1a3b083ecd506d5daec2f514ec7bcd5c1