[INFO] fetching crate lib_treblecross 0.2.1...
[INFO] checking lib_treblecross-0.2.1 against master#1280928a99ad3ef2c5735b42dc8852456ae3b974 for pr-120798
[INFO] extracting crate lib_treblecross 0.2.1 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate lib_treblecross 0.2.1 on toolchain 1280928a99ad3ef2c5735b42dc8852456ae3b974
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1280928a99ad3ef2c5735b42dc8852456ae3b974" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lib_treblecross 0.2.1
[INFO] finished tweaking crates.io crate lib_treblecross 0.2.1
[INFO] tweaked toml for crates.io crate lib_treblecross 0.2.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1280928a99ad3ef2c5735b42dc8852456ae3b974" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1280928a99ad3ef2c5735b42dc8852456ae3b974" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1280928a99ad3ef2c5735b42dc8852456ae3b974" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a3493cf83998d569805fed63d6decafb77c6e9058a412307ec1222dd7f96fd39
[INFO] running `Command { std: "docker" "start" "-a" "a3493cf83998d569805fed63d6decafb77c6e9058a412307ec1222dd7f96fd39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3493cf83998d569805fed63d6decafb77c6e9058a412307ec1222dd7f96fd39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3493cf83998d569805fed63d6decafb77c6e9058a412307ec1222dd7f96fd39", kill_on_drop: false }`
[INFO] [stdout] a3493cf83998d569805fed63d6decafb77c6e9058a412307ec1222dd7f96fd39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1280928a99ad3ef2c5735b42dc8852456ae3b974" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 79b4d1a83bd7682d3f95c837d9e140f3463c990a831825f45b084398cd96ae95
[INFO] running `Command { std: "docker" "start" "-a" "79b4d1a83bd7682d3f95c837d9e140f3463c990a831825f45b084398cd96ae95", kill_on_drop: false }`
[INFO] [stderr]     Checking lib_treblecross v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "79b4d1a83bd7682d3f95c837d9e140f3463c990a831825f45b084398cd96ae95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79b4d1a83bd7682d3f95c837d9e140f3463c990a831825f45b084398cd96ae95", kill_on_drop: false }`
[INFO] [stdout] 79b4d1a83bd7682d3f95c837d9e140f3463c990a831825f45b084398cd96ae95
[INFO] checking lib_treblecross-0.2.1 against try#9b9e20bc79549d80ab413f49d990713851172cc1 for pr-120798
[INFO] extracting crate lib_treblecross 0.2.1 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate lib_treblecross 0.2.1 on toolchain 9b9e20bc79549d80ab413f49d990713851172cc1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9b9e20bc79549d80ab413f49d990713851172cc1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lib_treblecross 0.2.1
[INFO] finished tweaking crates.io crate lib_treblecross 0.2.1
[INFO] tweaked toml for crates.io crate lib_treblecross 0.2.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9b9e20bc79549d80ab413f49d990713851172cc1" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9b9e20bc79549d80ab413f49d990713851172cc1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+9b9e20bc79549d80ab413f49d990713851172cc1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e5bf8d9315fc4452b68dad353fbb2a5e321e3f28562249c5f2f57814888ebec1
[INFO] running `Command { std: "docker" "start" "-a" "e5bf8d9315fc4452b68dad353fbb2a5e321e3f28562249c5f2f57814888ebec1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e5bf8d9315fc4452b68dad353fbb2a5e321e3f28562249c5f2f57814888ebec1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5bf8d9315fc4452b68dad353fbb2a5e321e3f28562249c5f2f57814888ebec1", kill_on_drop: false }`
[INFO] [stdout] e5bf8d9315fc4452b68dad353fbb2a5e321e3f28562249c5f2f57814888ebec1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+9b9e20bc79549d80ab413f49d990713851172cc1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05b45490ff05bba67ba376d9704198a01f3143d6727bc91ee8deca262629219c
[INFO] running `Command { std: "docker" "start" "-a" "05b45490ff05bba67ba376d9704198a01f3143d6727bc91ee8deca262629219c", kill_on_drop: false }`
[INFO] [stderr]     Checking lib_treblecross v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:106:31
[INFO] [stdout]     |
[INFO] [stdout] 106 |         let mut score_board = negamax(&new_game, -beta, -alpha).peekable();
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:106:31
[INFO] [stdout]     |
[INFO] [stdout] 106 |         let mut score_board = negamax(&new_game, -beta, -alpha).peekable();
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: concrete type differs from previous defining opaque type use
[INFO] [stdout]    --> src/lib.rs:85:82
[INFO] [stdout]     |
[INFO] [stdout] 85  |   fn negamax(game: &Game, alpha: f32, beta: f32) -> impl Iterator<Item = f32> + '_ {
[INFO] [stdout]     |  __________________________________________________________________________________^
[INFO] [stdout] 86  | |     game.state.iter().enumerate().map(move |(x, _)| -> f32 {
[INFO] [stdout] 87  | |         if !game.can_play(x) {
[INFO] [stdout] 88  | |             return -(game.size() as f32);
[INFO] [stdout] ...   |
[INFO] [stdout] 120 | |     })
[INFO] [stdout] 121 | | }
[INFO] [stdout]     | |_^ expected `{type error}`, got `Map<Enumerate<bit_vec::Iter<'_>>, {closure@src/lib.rs:86:39: 86:59}>`
[INFO] [stdout]     |
[INFO] [stdout] note: previous use here
[INFO] [stdout]    --> src/lib.rs:106:31
[INFO] [stdout]     |
[INFO] [stdout] 106 |         let mut score_board = negamax(&new_game, -beta, -alpha).peekable();
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stdout] error: concrete type differs from previous defining opaque type use
[INFO] [stdout]    --> src/lib.rs:85:82
[INFO] [stdout]     |
[INFO] [stdout] 85  |   fn negamax(game: &Game, alpha: f32, beta: f32) -> impl Iterator<Item = f32> + '_ {
[INFO] [stdout]     |  __________________________________________________________________________________^
[INFO] [stdout] 86  | |     game.state.iter().enumerate().map(move |(x, _)| -> f32 {
[INFO] [stdout] 87  | |         if !game.can_play(x) {
[INFO] [stdout] 88  | |             return -(game.size() as f32);
[INFO] [stdout] ...   |
[INFO] [stdout] 120 | |     })
[INFO] [stdout] 121 | | }
[INFO] [stdout]     | |_^ expected `{type error}`, got `Map<Enumerate<bit_vec::Iter<'_>>, {closure@src/lib.rs:86:39: 86:59}>`
[INFO] [stdout]     |
[INFO] [stdout] note: previous use here
[INFO] [stdout]    --> src/lib.rs:106:31
[INFO] [stdout]     |
[INFO] [stdout] 106 |         let mut score_board = negamax(&new_game, -beta, -alpha).peekable();
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lib_treblecross` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `lib_treblecross` (lib test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "05b45490ff05bba67ba376d9704198a01f3143d6727bc91ee8deca262629219c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05b45490ff05bba67ba376d9704198a01f3143d6727bc91ee8deca262629219c", kill_on_drop: false }`
[INFO] [stdout] 05b45490ff05bba67ba376d9704198a01f3143d6727bc91ee8deca262629219c