[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] 70c347d9a2c3edbddfcc2630d6be0f0d38357260
[INFO] checking BeaconBrigade/solitaire-solver against master#f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b for pr-148329
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBeaconBrigade%2Fsolitaire-solver" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-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-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/BeaconBrigade/solitaire-solver on toolchain f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b" "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" "+f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b" "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-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e7d97e3a095d48b745eff786f7f74203edb857b8c7f7772831e305e17b0208c
[INFO] running `Command { std: "docker" "start" "-a" "6e7d97e3a095d48b745eff786f7f74203edb857b8c7f7772831e305e17b0208c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e7d97e3a095d48b745eff786f7f74203edb857b8c7f7772831e305e17b0208c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e7d97e3a095d48b745eff786f7f74203edb857b8c7f7772831e305e17b0208c", kill_on_drop: false }`
[INFO] [stdout] 6e7d97e3a095d48b745eff786f7f74203edb857b8c7f7772831e305e17b0208c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6fa7443f70181ab09b6871fc8bfa4d8b259b912effe5b7b114bb15623fee8fc
[INFO] running `Command { std: "docker" "start" "-a" "b6fa7443f70181ab09b6871fc8bfa4d8b259b912effe5b7b114bb15623fee8fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.152
[INFO] [stderr]    Compiling serde v1.0.195
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[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
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[INFO] [stderr]     Checking solitaire-game v0.1.0 (/opt/rustwide/workdir/crates/solitaire-game)
[INFO] [stderr]     Checking glow v0.13.1
[INFO] [stderr]     Checking web-time v0.2.4
[INFO] [stderr]     Checking solitaire-solver v0.1.0 (/opt/rustwide/workdir/crates/solitaire-solver)
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-1.0.109/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "quote", "test", "visit", "visit-mut"))' -C metadata=ef8976271c9674e4 -C extra-filename=-a8b9fe9c54bdb43a --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-43bef833ad5a6872.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-7acff96f9e6772ca.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-f2de522ba645d884.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[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/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/core/src/iter/traits/iterator.rs:495:5
[INFO] [stdout]    = note: the full name for the type has been written to '/opt/rustwide/target/debug/deps/solitaire_solver-42707cec21be7224.long-type-3587671148190600699.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] running `Command { std: "docker" "inspect" "b6fa7443f70181ab09b6871fc8bfa4d8b259b912effe5b7b114bb15623fee8fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6fa7443f70181ab09b6871fc8bfa4d8b259b912effe5b7b114bb15623fee8fc", kill_on_drop: false }`
[INFO] [stdout] b6fa7443f70181ab09b6871fc8bfa4d8b259b912effe5b7b114bb15623fee8fc
