[INFO] fetching crate cuid 1.0.1...
[INFO] testing cuid-1.0.1 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate cuid 1.0.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate cuid 1.0.1 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 cuid 1.0.1
[INFO] finished tweaking crates.io crate cuid 1.0.1
[INFO] tweaked toml for crates.io crate cuid 1.0.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate cuid 1.0.1 already has a lockfile, it will not be regenerated
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.78
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 5430375d20322c375e89447db07389d7f4c7dee4f1f0b2bbf56e86441c0ecb58
[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" "5430375d20322c375e89447db07389d7f4c7dee4f1f0b2bbf56e86441c0ecb58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5430375d20322c375e89447db07389d7f4c7dee4f1f0b2bbf56e86441c0ecb58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5430375d20322c375e89447db07389d7f4c7dee4f1f0b2bbf56e86441c0ecb58", kill_on_drop: false }`
[INFO] [stdout] 5430375d20322c375e89447db07389d7f4c7dee4f1f0b2bbf56e86441c0ecb58
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c18215e7344938db073e52d7b2c68999fc81f9b61c10f66f423202ab4e217cd5
[INFO] running `Command { std: "docker" "start" "-a" "c18215e7344938db073e52d7b2c68999fc81f9b61c10f66f423202ab4e217cd5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.78
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling hostname v0.3.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling cuid v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.46s
[INFO] running `Command { std: "docker" "inspect" "c18215e7344938db073e52d7b2c68999fc81f9b61c10f66f423202ab4e217cd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c18215e7344938db073e52d7b2c68999fc81f9b61c10f66f423202ab4e217cd5", kill_on_drop: false }`
[INFO] [stdout] c18215e7344938db073e52d7b2c68999fc81f9b61c10f66f423202ab4e217cd5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 98e657adbd9b9b245a52bc50f60ae6ec538e9ba10678f405df6599f0802364d1
[INFO] running `Command { std: "docker" "start" "-a" "98e657adbd9b9b245a52bc50f60ae6ec538e9ba10678f405df6599f0802364d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling rayon-core v1.8.1
[INFO] [stderr]    Compiling serde_json v1.0.58
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling oorandom v11.1.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling rayon v1.4.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling plotters v0.2.15
[INFO] [stderr]    Compiling bstr v0.2.13
[INFO] [stderr]    Compiling serde_cbor v0.11.1
[INFO] [stderr]    Compiling csv v1.1.3
[INFO] [stderr]    Compiling tinytemplate v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling criterion v0.3.3
[INFO] [stderr]    Compiling cuid v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1m 06s
[INFO] running `Command { std: "docker" "inspect" "98e657adbd9b9b245a52bc50f60ae6ec538e9ba10678f405df6599f0802364d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98e657adbd9b9b245a52bc50f60ae6ec538e9ba10678f405df6599f0802364d1", kill_on_drop: false }`
[INFO] [stdout] 98e657adbd9b9b245a52bc50f60ae6ec538e9ba10678f405df6599f0802364d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 511676d0573b0d27cadd37f27e5dec49e985c578838f1e446feeb3db11669aae
[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" "511676d0573b0d27cadd37f27e5dec49e985c578838f1e446feeb3db11669aae", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/cuid-1229d963e14a3512
[INFO] [stdout] 
[INFO] [stdout] running 31 tests
[INFO] [stdout] test counter::tests::counter_increasing_rollover ... ok
[INFO] [stdout] test fingerprint::fingerprint_tests::test_convert_hostname_1 ... ok
[INFO] [stdout] test random::test_randoms::random_block_len ... ok
[INFO] [stdout] test counter::tests::counter_is_monotonic_with_increasing_length ... ok
[INFO] [stdout] test tests::correct_discrete_values ... ok
[INFO] [stdout] test tests::slug_is_slug ... ok
[INFO] [stdout] test tests::slug_max_len ... ok
[INFO] [stdout] test text::pad_tests::does_not_pad_str_of_size ... ok
[INFO] [stdout] test text::pad_tests::single_char_pad ... ok
[INFO] [stdout] test random::test_randoms::multiple_blocks_not_equal ... ok
[INFO] [stdout] test fingerprint::fingerprint_tests::fingerprint_len ... ok
[INFO] [stdout] test fingerprint::fingerprint_tests::test_convert_hostname_4 ... ok
[INFO] [stdout] test counter::tests::counter_increasing_basic ... ok
[INFO] [stdout] test fingerprint::fingerprint_tests::test_pid_length ... ok
[INFO] [stdout] test text::pad_tests::smaller_pad ... ok
[INFO] [stdout] test fingerprint::fingerprint_tests::test_convert_hostname_2 ... ok
[INFO] [stdout] test text::pad_tests::multichar_pad ... ok
[INFO] [stdout] test text::pad_tests::pad_0s ... ok
[INFO] [stdout] test tests::cuid_len ... ok
[INFO] [stdout] test fingerprint::fingerprint_tests::test_convert_hostname_3 ... ok
[INFO] [stdout] test tests::cuid_is_cuid ... ok
[INFO] [stdout] test tests::slug_min_len ... ok
[INFO] [stdout] test text::radix_str_tests::hex_number_below_radix ... ok
[INFO] [stdout] test text::radix_str_tests::digits_in_base_7 ... ok
[INFO] [stdout] test text::radix_str_tests::digits_in_base_4 ... ok
[INFO] [stdout] test text::radix_str_tests::hex_number_below_radix_letter ... ok
[INFO] [stdout] test text::radix_str_tests::large_base_36 ... ok
[INFO] [stdout] test text::radix_str_tests::number_above_radix ... ok
[INFO] [stdout] test text::radix_str_tests::number_well_above_radix ... ok
[INFO] [stdout] test time::time_tests::test_timestamp_len ... ok
[INFO] [stdout] test time::time_tests::test_timestamp ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 31 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/cuid-1a26bb80ae3453a6
[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]      Running /opt/rustwide/target/debug/deps/collisions-49fdeed188445d1a
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test check_slug_collisions ... ok
[INFO] [stdout] test check_cuid_collisions ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 40.41s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests cuid
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - is_slug (line 94) ... ok
[INFO] [stdout] test src/lib.rs - slug (line 58) ... ok
[INFO] [stdout] test src/lib.rs - is_cuid (line 81) ... ok
[INFO] [stdout] test src/lib.rs - cuid (line 34) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.42s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "511676d0573b0d27cadd37f27e5dec49e985c578838f1e446feeb3db11669aae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "511676d0573b0d27cadd37f27e5dec49e985c578838f1e446feeb3db11669aae", kill_on_drop: false }`
[INFO] [stdout] 511676d0573b0d27cadd37f27e5dec49e985c578838f1e446feeb3db11669aae