[INFO] crate xvii 0.3.4 is already in cache
[INFO] testing xvii-0.3.4 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate xvii 0.3.4 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate xvii 0.3.4 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate xvii 0.3.4
[INFO] finished tweaking crates.io crate xvii 0.3.4
[INFO] tweaked toml for crates.io crate xvii 0.3.4 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 24f423d409685e6a8243f8e84cdbab2319497e0681d1710d9ee0eda65c2d79d6
[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" "24f423d409685e6a8243f8e84cdbab2319497e0681d1710d9ee0eda65c2d79d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24f423d409685e6a8243f8e84cdbab2319497e0681d1710d9ee0eda65c2d79d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24f423d409685e6a8243f8e84cdbab2319497e0681d1710d9ee0eda65c2d79d6", kill_on_drop: false }`
[INFO] [stdout] 24f423d409685e6a8243f8e84cdbab2319497e0681d1710d9ee0eda65c2d79d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 326d4bbc57cdcd5debac069d84aaad60ad8c68659ddd7d454e833966b4bd9a9f
[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" "326d4bbc57cdcd5debac069d84aaad60ad8c68659ddd7d454e833966b4bd9a9f", kill_on_drop: false }`
[INFO] [stderr]    Compiling xvii v0.3.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/roman.rs:56:18
[INFO] [stdout]    |
[INFO] [stdout] 56 |             n @ 1...4999 => Some(Roman(n)),
[INFO] [stdout]    |                  ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:23:61
[INFO] [stdout]    |
[INFO] [stdout] 23 |             InvalidDigit(digit) => write!(f, "{}: {}", self.description(), digit as char),
[INFO] [stdout]    |                                                             ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:24:59
[INFO] [stdout]    |
[INFO] [stdout] 24 |             OutOfRange(value) => write!(f, "{}: {}", self.description(), value),
[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 0.40s
[INFO] running `Command { std: "docker" "inspect" "326d4bbc57cdcd5debac069d84aaad60ad8c68659ddd7d454e833966b4bd9a9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "326d4bbc57cdcd5debac069d84aaad60ad8c68659ddd7d454e833966b4bd9a9f", kill_on_drop: false }`
[INFO] [stdout] 326d4bbc57cdcd5debac069d84aaad60ad8c68659ddd7d454e833966b4bd9a9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e64cb42dcf493e6264030c21f7e8ccb91a5153c1835269b4bc79311916165f8
[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" "1e64cb42dcf493e6264030c21f7e8ccb91a5153c1835269b4bc79311916165f8", kill_on_drop: false }`
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/roman.rs:56:18
[INFO] [stdout]    |
[INFO] [stdout] 56 |             n @ 1...4999 => Some(Roman(n)),
[INFO] [stdout]    |                  ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling xvii v0.3.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:23:61
[INFO] [stdout]    |
[INFO] [stdout] 23 |             InvalidDigit(digit) => write!(f, "{}: {}", self.description(), digit as char),
[INFO] [stdout]    |                                                             ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:24:59
[INFO] [stdout]    |
[INFO] [stdout] 24 |             OutOfRange(value) => write!(f, "{}: {}", self.description(), value),
[INFO] [stdout]    |                                                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/roman.rs:56:18
[INFO] [stdout]    |
[INFO] [stdout] 56 |             n @ 1...4999 => Some(Roman(n)),
[INFO] [stdout]    |                  ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:23:61
[INFO] [stdout]    |
[INFO] [stdout] 23 |             InvalidDigit(digit) => write!(f, "{}: {}", self.description(), digit as char),
[INFO] [stdout]    |                                                             ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:24:59
[INFO] [stdout]    |
[INFO] [stdout] 24 |             OutOfRange(value) => write!(f, "{}: {}", self.description(), value),
[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 1.00s
[INFO] running `Command { std: "docker" "inspect" "1e64cb42dcf493e6264030c21f7e8ccb91a5153c1835269b4bc79311916165f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e64cb42dcf493e6264030c21f7e8ccb91a5153c1835269b4bc79311916165f8", kill_on_drop: false }`
[INFO] [stdout] 1e64cb42dcf493e6264030c21f7e8ccb91a5153c1835269b4bc79311916165f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 04a35a818bf0e4ef89fd4ddd00183a1c0c9ea43b23065cdd105ae8095ecd6092
[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" "04a35a818bf0e4ef89fd4ddd00183a1c0c9ea43b23065cdd105ae8095ecd6092", kill_on_drop: false }`
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/roman.rs:56:18
[INFO] [stderr]    |
[INFO] [stderr] 56 |             n @ 1...4999 => Some(Roman(n)),
[INFO] [stderr]    |                  ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:23:61
[INFO] [stderr]    |
[INFO] [stderr] 23 |             InvalidDigit(digit) => write!(f, "{}: {}", self.description(), digit as char),
[INFO] [stderr]    |                                                             ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:24:59
[INFO] [stderr]    |
[INFO] [stderr] 24 |             OutOfRange(value) => write!(f, "{}: {}", self.description(), value),
[INFO] [stderr]    |                                                           ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/roman.rs:56:18
[INFO] [stderr]    |
[INFO] [stderr] 56 |             n @ 1...4999 => Some(Roman(n)),
[INFO] [stderr]    |                  ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:23:61
[INFO] [stderr]    |
[INFO] [stderr] 23 |             InvalidDigit(digit) => write!(f, "{}: {}", self.description(), digit as char),
[INFO] [stderr]    |                                                             ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:24:59
[INFO] [stderr]    |
[INFO] [stderr] 24 |             OutOfRange(value) => write!(f, "{}: {}", self.description(), value),
[INFO] [stderr]    |                                                           ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/xvii-039eea042a92e8ee
[INFO] [stdout] running 11 tests
[INFO] [stdout] test roman::tests::max_value_equals_4999 ... ok
[INFO] [stdout] test roman::tests::mmmmcmxcix_parses_as_4999 ... ok
[INFO] [stdout] test roman::tests::mmcmxcix_equals_2999 ... ok
[INFO] [stdout] test roman::tests::mmmcmxcix_value_equals_3999 ... ok
[INFO] [stdout] test roman::tests::mcmlxxxiv_equals_1984 ... ok
[INFO] [stdout] test unit::tests::i_equals_1 ... ok
[INFO] [stdout] test roman::tests::mmdxxix_equals_2529 ... ok
[INFO] [stdout] test unit::tests::ix_equals_9 ... ok
[INFO] [stdout] test unit::tests::iiiiix_equals_5 ... ok
[INFO] [stderr]    Doc-tests xvii
[INFO] [stdout] test unit::tests::i_equals_sequence_1 ... ok
[INFO] [stdout] test unit::tests::to_digit_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 13) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "04a35a818bf0e4ef89fd4ddd00183a1c0c9ea43b23065cdd105ae8095ecd6092", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04a35a818bf0e4ef89fd4ddd00183a1c0c9ea43b23065cdd105ae8095ecd6092", kill_on_drop: false }`
[INFO] [stdout] 04a35a818bf0e4ef89fd4ddd00183a1c0c9ea43b23065cdd105ae8095ecd6092