[INFO] fetching crate srfng 0.1.0...
[INFO] testing srfng-0.1.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate srfng 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate srfng 0.1.0 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate srfng 0.1.0
[INFO] finished tweaking crates.io crate srfng 0.1.0
[INFO] tweaked toml for crates.io crate srfng 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8476e810c0125b4a09d52717a667d0551c361ee99c9a985c8d511e2a422270ba
[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" "8476e810c0125b4a09d52717a667d0551c361ee99c9a985c8d511e2a422270ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8476e810c0125b4a09d52717a667d0551c361ee99c9a985c8d511e2a422270ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8476e810c0125b4a09d52717a667d0551c361ee99c9a985c8d511e2a422270ba", kill_on_drop: false }`
[INFO] [stdout] 8476e810c0125b4a09d52717a667d0551c361ee99c9a985c8d511e2a422270ba
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab1664e8ce8f8bf7e35e036a6481cba9cbcca8f7fae2d5fec705dc32ca970057
[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" "ab1664e8ce8f8bf7e35e036a6481cba9cbcca8f7fae2d5fec705dc32ca970057", kill_on_drop: false }`
[INFO] [stderr]    Compiling srfng v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum is never used: `SymbolTypes`
[INFO] [stdout]  --> src/options_and_defaults.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum SymbolTypes
[INFO] [stdout]   |          ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `CharacterTypeSegmentLength`
[INFO] [stdout]   --> src/options_and_defaults.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum CharacterTypeSegmentLength
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `DateTimeInclusion`
[INFO] [stdout]   --> src/options_and_defaults.rs:20:10
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub enum DateTimeInclusion
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "ab1664e8ce8f8bf7e35e036a6481cba9cbcca8f7fae2d5fec705dc32ca970057", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab1664e8ce8f8bf7e35e036a6481cba9cbcca8f7fae2d5fec705dc32ca970057", kill_on_drop: false }`
[INFO] [stdout] ab1664e8ce8f8bf7e35e036a6481cba9cbcca8f7fae2d5fec705dc32ca970057
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33600fd32aa1a84fdc6d1a40d097e4f4fcbaaf04312670641f5e5dad4b81fb96
[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" "33600fd32aa1a84fdc6d1a40d097e4f4fcbaaf04312670641f5e5dad4b81fb96", kill_on_drop: false }`
[INFO] [stderr]    Compiling srfng v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum is never used: `SymbolTypes`
[INFO] [stdout]  --> src/options_and_defaults.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum SymbolTypes
[INFO] [stdout]   |          ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `CharacterTypeSegmentLength`
[INFO] [stdout]   --> src/options_and_defaults.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum CharacterTypeSegmentLength
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `DateTimeInclusion`
[INFO] [stdout]   --> src/options_and_defaults.rs:20:10
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub enum DateTimeInclusion
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `SymbolTypes`
[INFO] [stdout]  --> src/options_and_defaults.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum SymbolTypes
[INFO] [stdout]   |          ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `CharacterTypeSegmentLength`
[INFO] [stdout]   --> src/options_and_defaults.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum CharacterTypeSegmentLength
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `DateTimeInclusion`
[INFO] [stdout]   --> src/options_and_defaults.rs:20:10
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub enum DateTimeInclusion
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `Command { std: "docker" "inspect" "33600fd32aa1a84fdc6d1a40d097e4f4fcbaaf04312670641f5e5dad4b81fb96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33600fd32aa1a84fdc6d1a40d097e4f4fcbaaf04312670641f5e5dad4b81fb96", kill_on_drop: false }`
[INFO] [stdout] 33600fd32aa1a84fdc6d1a40d097e4f4fcbaaf04312670641f5e5dad4b81fb96
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 12403c47e6fca320e6a68feec3c696dab180d89643313826f966547e7f8c97fb
[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" "12403c47e6fca320e6a68feec3c696dab180d89643313826f966547e7f8c97fb", kill_on_drop: false }`
[INFO] [stderr] warning: enum is never used: `SymbolTypes`
[INFO] [stderr]  --> src/options_and_defaults.rs:4:10
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub enum SymbolTypes
[INFO] [stderr]   |          ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `CharacterTypeSegmentLength`
[INFO] [stderr]   --> src/options_and_defaults.rs:12:10
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub enum CharacterTypeSegmentLength
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `DateTimeInclusion`
[INFO] [stderr]   --> src/options_and_defaults.rs:20:10
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub enum DateTimeInclusion
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `srfng` (lib) generated 3 warnings
[INFO] [stderr] warning: `srfng` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/srfng-7af7fe02bdf7ff43)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::rudimentary_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests srfng
[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" "12403c47e6fca320e6a68feec3c696dab180d89643313826f966547e7f8c97fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12403c47e6fca320e6a68feec3c696dab180d89643313826f966547e7f8c97fb", kill_on_drop: false }`
[INFO] [stdout] 12403c47e6fca320e6a68feec3c696dab180d89643313826f966547e7f8c97fb