[INFO] fetching crate base-x 0.2.8...
[INFO] testing base-x-0.2.8 against 1.55.0 for beta-1.56-1
[INFO] extracting crate base-x 0.2.8 into /workspace/builds/worker-53/source
[INFO] validating manifest of crates.io crate base-x 0.2.8 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate base-x 0.2.8
[INFO] finished tweaking crates.io crate base-x 0.2.8
[INFO] tweaked toml for crates.io crate base-x 0.2.8 written to /workspace/builds/worker-53/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de8692312306b865a82bc8d4ac9866d4465813b99966c13753b96e6c39dafe75
[INFO] running `Command { std: "docker" "start" "-a" "de8692312306b865a82bc8d4ac9866d4465813b99966c13753b96e6c39dafe75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de8692312306b865a82bc8d4ac9866d4465813b99966c13753b96e6c39dafe75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de8692312306b865a82bc8d4ac9866d4465813b99966c13753b96e6c39dafe75", kill_on_drop: false }`
[INFO] [stdout] de8692312306b865a82bc8d4ac9866d4465813b99966c13753b96e6c39dafe75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19877585de501ff2a2fd045e42d38090444d4aeb2e930f1f47a144633eaccb27
[INFO] running `Command { std: "docker" "start" "-a" "19877585de501ff2a2fd045e42d38090444d4aeb2e930f1f47a144633eaccb27", kill_on_drop: false }`
[INFO] [stderr]    Compiling base-x v0.2.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/decoder.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn iter(&'a str) -> Self::Iter;
[INFO] [stdout]    |             ^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &'a str`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/decoder.rs:17:21
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn carry(&self, <Self::Iter as std::iter::Iterator>::Item) -> Option<u32>;
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: <Self::Iter as std::iter::Iterator>::Item`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "19877585de501ff2a2fd045e42d38090444d4aeb2e930f1f47a144633eaccb27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19877585de501ff2a2fd045e42d38090444d4aeb2e930f1f47a144633eaccb27", kill_on_drop: false }`
[INFO] [stdout] 19877585de501ff2a2fd045e42d38090444d4aeb2e930f1f47a144633eaccb27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b0978633a655e62846e89382720921c080505a40e0e04ea50203b7112c05467
[INFO] running `Command { std: "docker" "start" "-a" "2b0978633a655e62846e89382720921c080505a40e0e04ea50203b7112c05467", kill_on_drop: false }`
[INFO] [stderr]    Compiling bencher v0.1.5
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/decoder.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn iter(&'a str) -> Self::Iter;
[INFO] [stdout]    |             ^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &'a str`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling json v0.11.15
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/decoder.rs:17:21
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn carry(&self, <Self::Iter as std::iter::Iterator>::Item) -> Option<u32>;
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: <Self::Iter as std::iter::Iterator>::Item`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling base-x v0.2.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/decoder.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn iter(&'a str) -> Self::Iter;
[INFO] [stdout]    |             ^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &'a str`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/decoder.rs:17:21
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn carry(&self, <Self::Iter as std::iter::Iterator>::Item) -> Option<u32>;
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: <Self::Iter as std::iter::Iterator>::Item`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.12s
[INFO] running `Command { std: "docker" "inspect" "2b0978633a655e62846e89382720921c080505a40e0e04ea50203b7112c05467", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b0978633a655e62846e89382720921c080505a40e0e04ea50203b7112c05467", kill_on_drop: false }`
[INFO] [stdout] 2b0978633a655e62846e89382720921c080505a40e0e04ea50203b7112c05467
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1eead7e35c6d01c6a66743d1a0769df24ec53c246c1b5507024f557e428fd3f9
[INFO] running `Command { std: "docker" "start" "-a" "1eead7e35c6d01c6a66743d1a0769df24ec53c246c1b5507024f557e428fd3f9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout] running 5 tests
[INFO] [stderr]   --> src/decoder.rs:16:13
[INFO] [stdout] test bigint::tests::big_uint_add_mul ... ok
[INFO] [stderr]    |
[INFO] [stdout] test bigint::tests::big_uint_from_bytes ... ok
[INFO] [stderr] 16 |     fn iter(&'a str) -> Self::Iter;
[INFO] [stdout] test bigint::tests::big_uint_rem_div ... ok
[INFO] [stderr]    |             ^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &'a str`
[INFO] [stdout] test test::is_unicode_sound ... ok
[INFO] [stderr]    |
[INFO] [stdout] test test::works ... ok
[INFO] [stderr]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]   --> src/decoder.rs:17:21
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn carry(&self, <Self::Iter as std::iter::Iterator>::Item) -> Option<u32>;
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: <Self::Iter as std::iter::Iterator>::Item`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: `base-x` (lib) generated 2 warnings
[INFO] [stderr] warning: `base-x` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.19s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/base_x-18419d2bdf85d717)
[INFO] [stderr]    Doc-tests base-x
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 16) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.97s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1eead7e35c6d01c6a66743d1a0769df24ec53c246c1b5507024f557e428fd3f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1eead7e35c6d01c6a66743d1a0769df24ec53c246c1b5507024f557e428fd3f9", kill_on_drop: false }`
[INFO] [stdout] 1eead7e35c6d01c6a66743d1a0769df24ec53c246c1b5507024f557e428fd3f9