[INFO] cloning repository https://github.com/BeaconBrigade/solitaire-solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BeaconBrigade/solitaire-solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBeaconBrigade%2Fsolitaire-solver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBeaconBrigade%2Fsolitaire-solver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e54c1f1af3424cfd44611a45e58906542da39d58
[INFO] checking BeaconBrigade/solitaire-solver against master#568b11762723b001bfa693d0f21c5dad01d4e813 for pr-149518
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBeaconBrigade%2Fsolitaire-solver" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/BeaconBrigade/solitaire-solver
[INFO] finished tweaking git repo https://github.com/BeaconBrigade/solitaire-solver
[INFO] tweaked toml for git repo https://github.com/BeaconBrigade/solitaire-solver written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/BeaconBrigade/solitaire-solver on toolchain 568b11762723b001bfa693d0f21c5dad01d4e813
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+568b11762723b001bfa693d0f21c5dad01d4e813" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/BeaconBrigade/solitaire-solver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+568b11762723b001bfa693d0f21c5dad01d4e813" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+568b11762723b001bfa693d0f21c5dad01d4e813" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "7892b6c14c93bf033d4d9b9130feff67d4f2a0b54884bd4e0b06b4ec0b013af4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7892b6c14c93bf033d4d9b9130feff67d4f2a0b54884bd4e0b06b4ec0b013af4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7892b6c14c93bf033d4d9b9130feff67d4f2a0b54884bd4e0b06b4ec0b013af4", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+568b11762723b001bfa693d0f21c5dad01d4e813" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b760c837e6aa137713f1d442ed324ef9097f0fbedbd330546d2e08ecfc5819e
[INFO] running `Command { std: "docker" "start" "-a" "9b760c837e6aa137713f1d442ed324ef9097f0fbedbd330546d2e08ecfc5819e", kill_on_drop: false }`
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[INFO] [stderr]     Checking solitaire-solver v0.1.0 (/opt/rustwide/workdir/crates/solitaire-solver)
[INFO] [stdout] error[E0599]: the method `chain` exists for enum `Option<FlatMap<Skip<Enumerate<Iter<'_, ([...; 19], u8)>>>, ..., ...>>`, but its trait bounds were not satisfied
[INFO] [stdout]   --> crates/solitaire-solver/src/common.rs:97:14
[INFO] [stdout]    |
[INFO] [stdout] 95 |           for from in tableau_iter
[INFO] [stdout]    |  _____________________-
[INFO] [stdout] 96 | |             .clone()
[INFO] [stdout] 97 | |             .chain(talon_iter)
[INFO] [stdout]    | |             -^^^^^ method cannot be called due to unsatisfied trait bounds
[INFO] [stdout]    | |_____________|
[INFO] [stdout]    |
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `Option<FlatMap<Skip<Enumerate<std::slice::Iter<'_, ([Option<Card>; 19], u8)>>>, Map<Enumerate<std::slice::Iter<'_, Option<Card>>>, {closure@crates/solitaire-solver/src/common.rs:45:33: 45:46}>, {closure@crates/solitaire-solver/src/common.rs:43:31: 43:39}>>: Iterator`
[INFO] [stdout]            which is required by `&mut Option<FlatMap<Skip<Enumerate<std::slice::Iter<'_, ([Option<Card>; 19], u8)>>>, Map<Enumerate<std::slice::Iter<'_, Option<Card>>>, {closure@crates/solitaire-solver/src/common.rs:45:33: 45:46}>, {closure@crates/solitaire-solver/src/common.rs:43:31: 43:39}>>: Iterator`
[INFO] [stdout] note: the method `chain` exists on the type `FlatMap<Skip<Enumerate<std::slice::Iter<'_, ([Option<Card>; 19], u8)>>>, Map<Enumerate<std::slice::Iter<'_, Option<Card>>>, {closure@crates/solitaire-solver/src/common.rs:45:33: 45:46}>, {closure@crates/solitaire-solver/src/common.rs:43:31: 43:39}>`
[INFO] [stdout]   --> /rustc/568b11762723b001bfa693d0f21c5dad01d4e813/library/core/src/iter/traits/iterator.rs:495:4
[INFO] [stdout]    = note: the full name for the type has been written to '/opt/rustwide/target/debug/deps/solitaire_solver-4800bd034abe3acc.long-type-1036428542416059421.txt'
[INFO] [stdout]    = note: consider using `--verbose` to print the full type name to the console
[INFO] [stdout] help: use the `?` operator to extract the `FlatMap<Skip<Enumerate<std::slice::Iter<'_, ([Option<Card>; 19], u8)>>>, Map<Enumerate<std::slice::Iter<'_, Option<Card>>>, {closure@crates/solitaire-solver/src/common.rs:45:33: 45:46}>, {closure@crates/solitaire-solver/src/common.rs:43:31: 43:39}>` value, propagating an `Option::None` value to the caller
[INFO] [stdout]    |
[INFO] [stdout] 96 |             .clone()?
[INFO] [stdout]    |                     +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `solitaire-solver` (lib test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0599]: the method `chain` exists for enum `Option<FlatMap<Skip<Enumerate<Iter<'_, ([...; 19], u8)>>>, ..., ...>>`, but its trait bounds were not satisfied
[INFO] [stdout]   --> crates/solitaire-solver/src/common.rs:97:14
[INFO] [stdout]    |
[INFO] [stdout] 95 |           for from in tableau_iter
[INFO] [stdout]    |  _____________________-
[INFO] [stdout] 96 | |             .clone()
[INFO] [stdout] 97 | |             .chain(talon_iter)
[INFO] [stdout]    | |             -^^^^^ method cannot be called due to unsatisfied trait bounds
[INFO] [stdout]    | |_____________|
[INFO] [stdout]    |
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `Option<FlatMap<Skip<Enumerate<std::slice::Iter<'_, ([Option<Card>; 19], u8)>>>, Map<Enumerate<std::slice::Iter<'_, Option<Card>>>, {closure@crates/solitaire-solver/src/common.rs:45:33: 45:46}>, {closure@crates/solitaire-solver/src/common.rs:43:31: 43:39}>>: Iterator`
[INFO] [stdout]            which is required by `&mut Option<FlatMap<Skip<Enumerate<std::slice::Iter<'_, ([Option<Card>; 19], u8)>>>, Map<Enumerate<std::slice::Iter<'_, Option<Card>>>, {closure@crates/solitaire-solver/src/common.rs:45:33: 45:46}>, {closure@crates/solitaire-solver/src/common.rs:43:31: 43:39}>>: Iterator`
[INFO] [stdout] note: the method `chain` exists on the type `FlatMap<Skip<Enumerate<std::slice::Iter<'_, ([Option<Card>; 19], u8)>>>, Map<Enumerate<std::slice::Iter<'_, Option<Card>>>, {closure@crates/solitaire-solver/src/common.rs:45:33: 45:46}>, {closure@crates/solitaire-solver/src/common.rs:43:31: 43:39}>`
[INFO] [stdout]   --> /rustc/568b11762723b001bfa693d0f21c5dad01d4e813/library/core/src/iter/traits/iterator.rs:495:4
[INFO] [stdout]    = note: the full name for the type has been written to '/opt/rustwide/target/debug/deps/solitaire_solver-b3b49ac9357fe203.long-type-17656445674084056184.txt'
[INFO] [stdout]    = note: consider using `--verbose` to print the full type name to the console
[INFO] [stdout] help: use the `?` operator to extract the `FlatMap<Skip<Enumerate<std::slice::Iter<'_, ([Option<Card>; 19], u8)>>>, Map<Enumerate<std::slice::Iter<'_, Option<Card>>>, {closure@crates/solitaire-solver/src/common.rs:45:33: 45:46}>, {closure@crates/solitaire-solver/src/common.rs:43:31: 43:39}>` value, propagating an `Option::None` value to the caller
[INFO] [stdout]    |
[INFO] [stdout] 96 |             .clone()?
[INFO] [stdout]    |                     +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `solitaire-solver` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "9b760c837e6aa137713f1d442ed324ef9097f0fbedbd330546d2e08ecfc5819e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b760c837e6aa137713f1d442ed324ef9097f0fbedbd330546d2e08ecfc5819e", kill_on_drop: false }`
[INFO] [stdout] 9b760c837e6aa137713f1d442ed324ef9097f0fbedbd330546d2e08ecfc5819e
