[INFO] fetching crate klondike-rs 1.1.0...
[INFO] testing klondike-rs-1.1.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate klondike-rs 1.1.0 into /workspace/builds/worker-51/source
[INFO] validating manifest of crates.io crate klondike-rs 1.1.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate klondike-rs 1.1.0
[INFO] finished tweaking crates.io crate klondike-rs 1.1.0
[INFO] tweaked toml for crates.io crate klondike-rs 1.1.0 written to /workspace/builds/worker-51/source/Cargo.toml
[INFO] crate crates.io crate klondike-rs 1.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5ea6ed9cf605cc62a5dbba25090784f59d1f95f02055692496952f55ca254739
[INFO] running `Command { std: "docker" "start" "-a" "5ea6ed9cf605cc62a5dbba25090784f59d1f95f02055692496952f55ca254739", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5ea6ed9cf605cc62a5dbba25090784f59d1f95f02055692496952f55ca254739", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ea6ed9cf605cc62a5dbba25090784f59d1f95f02055692496952f55ca254739", kill_on_drop: false }`
[INFO] [stdout] 5ea6ed9cf605cc62a5dbba25090784f59d1f95f02055692496952f55ca254739
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4bd1a9f5e289a79a297ba5e82bb19f4daaf1b7abd76374148640346a16019813
[INFO] running `Command { std: "docker" "start" "-a" "4bd1a9f5e289a79a297ba5e82bb19f4daaf1b7abd76374148640346a16019813", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling serde v0.8.23
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling doc-comment v0.3.1
[INFO] [stderr]    Compiling linked-hash-map v0.5.2
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling rust-ini v0.13.0
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling log-panics v2.0.0
[INFO] [stderr]    Compiling yaml-rust v0.4.3
[INFO] [stderr]    Compiling itertools v0.8.1
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling termion v1.5.3
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling directories v2.0.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling term v0.6.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling serde_test v0.8.23
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling euclid v0.20.3
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]    Compiling linked-hash-map v0.3.0
[INFO] [stderr]    Compiling chrono v0.4.9
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling simplelog v0.7.4
[INFO] [stderr]    Compiling serde-hjson v0.8.2
[INFO] [stderr]    Compiling derivative v1.0.3
[INFO] [stderr]    Compiling derive_more v0.15.0
[INFO] [stderr]    Compiling serde_derive v1.0.102
[INFO] [stderr]    Compiling snafu-derive v0.6.0
[INFO] [stderr]    Compiling snafu v0.6.0
[INFO] [stderr]    Compiling toml v0.5.5
[INFO] [stderr]    Compiling serde_json v1.0.41
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling proc-macro-crate v0.1.4
[INFO] [stderr]    Compiling config v0.9.3
[INFO] [stderr]    Compiling num_enum_derive v0.4.2
[INFO] [stderr]    Compiling num_enum v0.4.2
[INFO] [stderr]    Compiling klondike-rs v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/display/help.rs:152:71
[INFO] [stdout]     |
[INFO] [stdout] 152 |             Self::List(keys) => keys.iter().map(|key| key.char_len()).intersperse(3).sum(),
[INFO] [stdout]     |                                                                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/display/help.rs:168:22
[INFO] [stdout]     |
[INFO] [stdout] 168 |                     .intersperse(
[INFO] [stdout]     |                      ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.41s
[INFO] running `Command { std: "docker" "inspect" "4bd1a9f5e289a79a297ba5e82bb19f4daaf1b7abd76374148640346a16019813", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bd1a9f5e289a79a297ba5e82bb19f4daaf1b7abd76374148640346a16019813", kill_on_drop: false }`
[INFO] [stdout] 4bd1a9f5e289a79a297ba5e82bb19f4daaf1b7abd76374148640346a16019813
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d01a46490d516d406fbb4e001355557c66daefc80a1e1243fc4d25cf9291725
[INFO] running `Command { std: "docker" "start" "-a" "8d01a46490d516d406fbb4e001355557c66daefc80a1e1243fc4d25cf9291725", kill_on_drop: false }`
[INFO] [stderr]    Compiling klondike-rs v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/display/help.rs:152:71
[INFO] [stdout]     |
[INFO] [stdout] 152 |             Self::List(keys) => keys.iter().map(|key| key.char_len()).intersperse(3).sum(),
[INFO] [stdout]     |                                                                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/display/help.rs:168:22
[INFO] [stdout]     |
[INFO] [stdout] 168 |                     .intersperse(
[INFO] [stdout]     |                      ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/display/help.rs:152:71
[INFO] [stdout]     |
[INFO] [stdout] 152 |             Self::List(keys) => keys.iter().map(|key| key.char_len()).intersperse(3).sum(),
[INFO] [stdout]     |                                                                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/display/help.rs:168:22
[INFO] [stdout]     |
[INFO] [stdout] 168 |                     .intersperse(
[INFO] [stdout]     |                      ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `Command { std: "docker" "inspect" "8d01a46490d516d406fbb4e001355557c66daefc80a1e1243fc4d25cf9291725", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d01a46490d516d406fbb4e001355557c66daefc80a1e1243fc4d25cf9291725", kill_on_drop: false }`
[INFO] [stdout] 8d01a46490d516d406fbb4e001355557c66daefc80a1e1243fc4d25cf9291725
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 395167fc7b1fb932cbaf71ea4952dd603603141b582947a7c54453308bb34f3d
[INFO] running `Command { std: "docker" "start" "-a" "395167fc7b1fb932cbaf71ea4952dd603603141b582947a7c54453308bb34f3d", kill_on_drop: false }`
[INFO] [stderr] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/display/help.rs:152:71
[INFO] [stderr]     |
[INFO] [stderr] 152 |             Self::List(keys) => keys.iter().map(|key| key.char_len()).intersperse(3).sum(),
[INFO] [stderr]     |                                                                       ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stderr]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/display/help.rs:168:22
[INFO] [stderr]     |
[INFO] [stderr] 168 |                     .intersperse(
[INFO] [stderr]     |                      ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/display/help.rs:152:71
[INFO] [stderr]     |
[INFO] [stderr] 152 |             Self::List(keys) => keys.iter().map(|key| key.char_len()).intersperse(3).sum(),
[INFO] [stderr]     |                                                                       ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stderr]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/display/help.rs:168:22
[INFO] [stderr]     |
[INFO] [stderr] 168 |                     .intersperse(
[INFO] [stderr]     |                      ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/klondike_lib-d1aa7ae486519ace)
[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 unittests (/opt/rustwide/target/debug/deps/klondike-072d7c3a576266b8)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests klondike_lib
[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] [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" "395167fc7b1fb932cbaf71ea4952dd603603141b582947a7c54453308bb34f3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "395167fc7b1fb932cbaf71ea4952dd603603141b582947a7c54453308bb34f3d", kill_on_drop: false }`
[INFO] [stdout] 395167fc7b1fb932cbaf71ea4952dd603603141b582947a7c54453308bb34f3d
