[INFO] fetching crate feast 0.1.0...
[INFO] testing feast-0.1.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate feast 0.1.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate feast 0.1.0 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 feast 0.1.0
[INFO] finished tweaking crates.io crate feast 0.1.0
[INFO] tweaked toml for crates.io crate feast 0.1.0 written to /workspace/builds/worker-10/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5567306a27be244fc6e0f7ba0527e59255669653e98ee5c71818a1dcbef8bab8
[INFO] running `Command { std: "docker" "start" "-a" "5567306a27be244fc6e0f7ba0527e59255669653e98ee5c71818a1dcbef8bab8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5567306a27be244fc6e0f7ba0527e59255669653e98ee5c71818a1dcbef8bab8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5567306a27be244fc6e0f7ba0527e59255669653e98ee5c71818a1dcbef8bab8", kill_on_drop: false }`
[INFO] [stdout] 5567306a27be244fc6e0f7ba0527e59255669653e98ee5c71818a1dcbef8bab8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] f7f5100741991aa88bcbc7b96a419b66d53b878a47330bf4fc14ff023c03f0ad
[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" "f7f5100741991aa88bcbc7b96a419b66d53b878a47330bf4fc14ff023c03f0ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling feast v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "f7f5100741991aa88bcbc7b96a419b66d53b878a47330bf4fc14ff023c03f0ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7f5100741991aa88bcbc7b96a419b66d53b878a47330bf4fc14ff023c03f0ad", kill_on_drop: false }`
[INFO] [stdout] f7f5100741991aa88bcbc7b96a419b66d53b878a47330bf4fc14ff023c03f0ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 1a03e9a833d7cb58d79dd3c489f1c4f6485a03a47f831fbc9eddd26e858d902d
[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" "1a03e9a833d7cb58d79dd3c489f1c4f6485a03a47f831fbc9eddd26e858d902d", kill_on_drop: false }`
[INFO] [stderr]    Compiling assert_matches v1.4.0
[INFO] [stderr]    Compiling feast v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.76s
[INFO] running `Command { std: "docker" "inspect" "1a03e9a833d7cb58d79dd3c489f1c4f6485a03a47f831fbc9eddd26e858d902d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a03e9a833d7cb58d79dd3c489f1c4f6485a03a47f831fbc9eddd26e858d902d", kill_on_drop: false }`
[INFO] [stdout] 1a03e9a833d7cb58d79dd3c489f1c4f6485a03a47f831fbc9eddd26e858d902d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 52019c8772bf06e262221655f146497d3833374b3c8f8bcf7b4357704663ceca
[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" "52019c8772bf06e262221655f146497d3833374b3c8f8bcf7b4357704663ceca", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/feast-d643e97868747656
[INFO] [stdout] running 6 tests
[INFO] [stdout] test byte::tests::test_valid_ascii_digit ... ok
[INFO] [stdout] test core::tests::test_peek_simple ... ok
[INFO] [stdout] test input::slice::tests::test_slice_input_split_pair ... ok
[INFO] [stdout] test input::slice::tests::test_slice_input_split_first ... ok
[INFO] [stdout] test input::slice::tests::test_slice_input_split_at ... ok
[INFO] [stderr]    Doc-tests feast
[INFO] [stdout] test core::tests::test_peek_tag ... 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] [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" "52019c8772bf06e262221655f146497d3833374b3c8f8bcf7b4357704663ceca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52019c8772bf06e262221655f146497d3833374b3c8f8bcf7b4357704663ceca", kill_on_drop: false }`
[INFO] [stdout] 52019c8772bf06e262221655f146497d3833374b3c8f8bcf7b4357704663ceca