[INFO] fetching crate rustkell 0.2.2...
[INFO] testing rustkell-0.2.2 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate rustkell 0.2.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rustkell 0.2.2 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 rustkell 0.2.2
[INFO] finished tweaking crates.io crate rustkell 0.2.2
[INFO] tweaked toml for crates.io crate rustkell 0.2.2 written to /workspace/builds/worker-4/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] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 192cf13bfc90dc5a4dc7f13299535e10b2c6b75cd9a87e1a8fafe9c285c66352
[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" "192cf13bfc90dc5a4dc7f13299535e10b2c6b75cd9a87e1a8fafe9c285c66352", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "192cf13bfc90dc5a4dc7f13299535e10b2c6b75cd9a87e1a8fafe9c285c66352", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "192cf13bfc90dc5a4dc7f13299535e10b2c6b75cd9a87e1a8fafe9c285c66352", kill_on_drop: false }`
[INFO] [stdout] 192cf13bfc90dc5a4dc7f13299535e10b2c6b75cd9a87e1a8fafe9c285c66352
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] da2254758c70faedde51925a0485e1ff31ca52f82cfbdb399fc7b7d5bb4127b2
[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" "da2254758c70faedde51925a0485e1ff31ca52f82cfbdb399fc7b7d5bb4127b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustkell v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "da2254758c70faedde51925a0485e1ff31ca52f82cfbdb399fc7b7d5bb4127b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da2254758c70faedde51925a0485e1ff31ca52f82cfbdb399fc7b7d5bb4127b2", kill_on_drop: false }`
[INFO] [stdout] da2254758c70faedde51925a0485e1ff31ca52f82cfbdb399fc7b7d5bb4127b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 43791adfe97e1425e6a020fe4e52989879b9c51c15f2e58a3aa213677c5048f8
[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" "43791adfe97e1425e6a020fe4e52989879b9c51c15f2e58a3aa213677c5048f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustkell v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `Command { std: "docker" "inspect" "43791adfe97e1425e6a020fe4e52989879b9c51c15f2e58a3aa213677c5048f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43791adfe97e1425e6a020fe4e52989879b9c51c15f2e58a3aa213677c5048f8", kill_on_drop: false }`
[INFO] [stdout] 43791adfe97e1425e6a020fe4e52989879b9c51c15f2e58a3aa213677c5048f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 01a8b567f2be55561c02809979baf1615b6be95443d1e8d04322e1cc5fa7b433
[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" "01a8b567f2be55561c02809979baf1615b6be95443d1e8d04322e1cc5fa7b433", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rustkell-ad0040822a5f87ff
[INFO] [stdout] running 6 tests
[INFO] [stdout] test datalist::iter_test_tails ... ok
[INFO] [stdout] test datalist::slice_test_tails ... ok
[INFO] [stdout] test datalist::vector_test_tails_empty ... ok
[INFO] [stdout] test datalist::slice_test_tails_empty ... ok
[INFO] [stdout] test datalist::vector_test_tails ... ok
[INFO] [stdout] test datalist::iter_test_tails_empty ... 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]    Doc-tests rustkell
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/datalist/mod.rs - datalist::DataList::tails (line 21) ... ok
[INFO] [stdout] test src/datalist/tails.rs - datalist::tails::Tails (line 14) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.05s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "01a8b567f2be55561c02809979baf1615b6be95443d1e8d04322e1cc5fa7b433", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01a8b567f2be55561c02809979baf1615b6be95443d1e8d04322e1cc5fa7b433", kill_on_drop: false }`
[INFO] [stdout] 01a8b567f2be55561c02809979baf1615b6be95443d1e8d04322e1cc5fa7b433