[INFO] cloning repository https://github.com/Emik03/minimax-tictactoe
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Emik03/minimax-tictactoe" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEmik03%2Fminimax-tictactoe", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEmik03%2Fminimax-tictactoe'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 18c2c25916fb8a6a92e8e8e121fc0c16f35a3f34
[INFO] checking Emik03/minimax-tictactoe against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEmik03%2Fminimax-tictactoe" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Emik03/minimax-tictactoe on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Emik03/minimax-tictactoe
[INFO] finished tweaking git repo https://github.com/Emik03/minimax-tictactoe
[INFO] tweaked toml for git repo https://github.com/Emik03/minimax-tictactoe written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Emik03/minimax-tictactoe 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ptree v0.3.2
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a75138437e6a4d57f58644d680287546b34af53b60dd6335e4b0c6664e4b40ba
[INFO] running `Command { std: "docker" "start" "-a" "a75138437e6a4d57f58644d680287546b34af53b60dd6335e4b0c6664e4b40ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a75138437e6a4d57f58644d680287546b34af53b60dd6335e4b0c6664e4b40ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a75138437e6a4d57f58644d680287546b34af53b60dd6335e4b0c6664e4b40ba", kill_on_drop: false }`
[INFO] [stdout] a75138437e6a4d57f58644d680287546b34af53b60dd6335e4b0c6664e4b40ba
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6451e94abc31afe77f696df64072653f67288849cae68d3eeb7f7dd0b7d14f50
[INFO] running `Command { std: "docker" "start" "-a" "6451e94abc31afe77f696df64072653f67288849cae68d3eeb7f7dd0b7d14f50", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling syn v1.0.77
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking serde v0.8.23
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]     Checking rust-ini v0.13.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking tint v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking directories v3.0.2
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]     Checking serde_test v0.8.23
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking linked-hash-map v0.3.0
[INFO] [stderr]     Checking serde-hjson v0.9.1
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking serde-value v0.6.0
[INFO] [stderr]     Checking config v0.10.1
[INFO] [stderr]     Checking ptree v0.3.2
[INFO] [stderr]     Checking minimax-tictactoe v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.75s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v5.1.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "6451e94abc31afe77f696df64072653f67288849cae68d3eeb7f7dd0b7d14f50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6451e94abc31afe77f696df64072653f67288849cae68d3eeb7f7dd0b7d14f50", kill_on_drop: false }`
[INFO] [stdout] 6451e94abc31afe77f696df64072653f67288849cae68d3eeb7f7dd0b7d14f50
[INFO] checking Emik03/minimax-tictactoe against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEmik03%2Fminimax-tictactoe" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Emik03/minimax-tictactoe on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Emik03/minimax-tictactoe
[INFO] finished tweaking git repo https://github.com/Emik03/minimax-tictactoe
[INFO] tweaked toml for git repo https://github.com/Emik03/minimax-tictactoe written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Emik03/minimax-tictactoe 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ecc5b23f62ee37082538b5b30c70b388373804ee570f4c7dd8130002a7ad0e35
[INFO] running `Command { std: "docker" "start" "-a" "ecc5b23f62ee37082538b5b30c70b388373804ee570f4c7dd8130002a7ad0e35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ecc5b23f62ee37082538b5b30c70b388373804ee570f4c7dd8130002a7ad0e35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecc5b23f62ee37082538b5b30c70b388373804ee570f4c7dd8130002a7ad0e35", kill_on_drop: false }`
[INFO] [stdout] ecc5b23f62ee37082538b5b30c70b388373804ee570f4c7dd8130002a7ad0e35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc7b99c1fb625edf0fa6218d44834b602fd504ea0990af074fd92dbbb9a193fa
[INFO] running `Command { std: "docker" "start" "-a" "bc7b99c1fb625edf0fa6218d44834b602fd504ea0990af074fd92dbbb9a193fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling syn v1.0.77
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking serde v0.8.23
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]     Checking rust-ini v0.13.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]     Checking tint v1.0.1
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking directories v3.0.2
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking serde_test v0.8.23
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking linked-hash-map v0.3.0
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.5.4/src/exec.rs:848:13
[INFO] [stdout]     |
[INFO] [stdout] 848 | /             match dfa::Fsm::reverse(
[INFO] [stdout] 849 | |                 &self.ro.dfa_reverse,
[INFO] [stdout] 850 | |                 self.cache.value(),
[INFO] [stdout] 851 | |                 false,
[INFO] [stdout] ...   |
[INFO] [stdout] 862 | |                 Quit => return Some(Quit),
[INFO] [stdout] 863 | |             };
[INFO] [stdout]     | |_____________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `regex` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "bc7b99c1fb625edf0fa6218d44834b602fd504ea0990af074fd92dbbb9a193fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc7b99c1fb625edf0fa6218d44834b602fd504ea0990af074fd92dbbb9a193fa", kill_on_drop: false }`
[INFO] [stdout] bc7b99c1fb625edf0fa6218d44834b602fd504ea0990af074fd92dbbb9a193fa