[INFO] cloning repository https://github.com/johan-stph/sudoku-solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/johan-stph/sudoku-solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohan-stph%2Fsudoku-solver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohan-stph%2Fsudoku-solver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fc84ddd7a1d6f590b4181b3b76dd8201d7462871
[INFO] checking johan-stph/sudoku-solver against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohan-stph%2Fsudoku-solver" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/johan-stph/sudoku-solver on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/johan-stph/sudoku-solver
[INFO] finished tweaking git repo https://github.com/johan-stph/sudoku-solver
[INFO] tweaked toml for git repo https://github.com/johan-stph/sudoku-solver written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/johan-stph/sudoku-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 505344adfd83787c8e4592ce5c5a578057792016bd9db354f3e4a7baa6cf8d8a
[INFO] running `Command { std: "docker" "start" "-a" "505344adfd83787c8e4592ce5c5a578057792016bd9db354f3e4a7baa6cf8d8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "505344adfd83787c8e4592ce5c5a578057792016bd9db354f3e4a7baa6cf8d8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "505344adfd83787c8e4592ce5c5a578057792016bd9db354f3e4a7baa6cf8d8a", kill_on_drop: false }`
[INFO] [stdout] 505344adfd83787c8e4592ce5c5a578057792016bd9db354f3e4a7baa6cf8d8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d5ca6d73e0fe3cbf813ab07cc9f976b70ba5e295135edfccbad7efb5f5f9d96
[INFO] running `Command { std: "docker" "start" "-a" "7d5ca6d73e0fe3cbf813ab07cc9f976b70ba5e295135edfccbad7efb5f5f9d96", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking memchr v2.6.3
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]    Compiling serde_json v1.0.107
[INFO] [stderr]    Compiling async-trait v0.1.73
[INFO] [stderr]    Compiling thiserror v1.0.49
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]     Checking http-range-header v0.3.1
[INFO] [stderr]     Checking matchit v0.7.3
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling axum-core v0.3.4
[INFO] [stderr]    Compiling axum v0.6.20
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]     Checking parking_lot_core v0.9.8
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking socket2 v0.5.4
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.26
[INFO] [stderr]    Compiling pin-project-internal v1.1.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.49
[INFO] [stderr]    Compiling async-stream-impl v0.3.5
[INFO] [stderr]     Checking async-stream v0.3.5
[INFO] [stderr]     Checking pin-project v1.1.3
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking bytes v1.5.0
[INFO] [stderr]     Checking serde_path_to_error v0.1.14
[INFO] [stderr]     Checking query_map v0.6.0
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking sudoku-solver v0.1.0 (/opt/rustwide/workdir/sudoku-solver)
[INFO] [stderr]     Checking http v0.2.9
[INFO] [stderr]     Checking tokio v1.32.0
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]     Checking http-serde v1.1.3
[INFO] [stderr]     Checking aws_lambda_events v0.10.0
[INFO] [stderr]     Checking tower-http v0.4.4
[INFO] [stderr]     Checking hyper v0.14.27
[INFO] [stderr]     Checking tower v0.4.13
[INFO] [stderr]     Checking tokio-stream v0.1.14
[INFO] [stderr]     Checking lambda_runtime_api_client v0.8.0
[INFO] [stderr]     Checking lambda_runtime v0.8.2
[INFO] [stderr]     Checking lambda_http v0.8.1
[INFO] [stderr]     Checking api v0.1.0 (/opt/rustwide/workdir/api)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 48.90s
[INFO] running `Command { std: "docker" "inspect" "7d5ca6d73e0fe3cbf813ab07cc9f976b70ba5e295135edfccbad7efb5f5f9d96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d5ca6d73e0fe3cbf813ab07cc9f976b70ba5e295135edfccbad7efb5f5f9d96", kill_on_drop: false }`
[INFO] [stdout] 7d5ca6d73e0fe3cbf813ab07cc9f976b70ba5e295135edfccbad7efb5f5f9d96
[INFO] checking johan-stph/sudoku-solver against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohan-stph%2Fsudoku-solver" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/johan-stph/sudoku-solver on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/johan-stph/sudoku-solver
[INFO] finished tweaking git repo https://github.com/johan-stph/sudoku-solver
[INFO] tweaked toml for git repo https://github.com/johan-stph/sudoku-solver written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/johan-stph/sudoku-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2fcbeab4a6c60c4c7359f93c7262a716c806ec0bc146be34b80374c58f872187
[INFO] running `Command { std: "docker" "start" "-a" "2fcbeab4a6c60c4c7359f93c7262a716c806ec0bc146be34b80374c58f872187", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2fcbeab4a6c60c4c7359f93c7262a716c806ec0bc146be34b80374c58f872187", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fcbeab4a6c60c4c7359f93c7262a716c806ec0bc146be34b80374c58f872187", kill_on_drop: false }`
[INFO] [stdout] 2fcbeab4a6c60c4c7359f93c7262a716c806ec0bc146be34b80374c58f872187
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5c0480ecae67f6300d989b74e7fdc11a65a5e7d1a4b4b199eb24b9546352e0d
[INFO] running `Command { std: "docker" "start" "-a" "d5c0480ecae67f6300d989b74e7fdc11a65a5e7d1a4b4b199eb24b9546352e0d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]     Checking memchr v2.6.3
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]    Compiling serde_json v1.0.107
[INFO] [stderr]    Compiling thiserror v1.0.49
[INFO] [stderr]    Compiling async-trait v0.1.73
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]     Checking http-range-header v0.3.1
[INFO] [stderr]     Checking matchit v0.7.3
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking parking_lot_core v0.9.8
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking socket2 v0.5.4
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]    Compiling axum-core v0.3.4
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]    Compiling axum v0.6.20
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.26
[INFO] [stderr]    Compiling pin-project-internal v1.1.3
[INFO] [stderr]    Compiling async-stream-impl v0.3.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.49
[INFO] [stderr]     Checking async-stream v0.3.5
[INFO] [stderr]     Checking pin-project v1.1.3
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking bytes v1.5.0
[INFO] [stderr]     Checking serde_path_to_error v0.1.14
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking query_map v0.6.0
[INFO] [stderr]     Checking sudoku-solver v0.1.0 (/opt/rustwide/workdir/sudoku-solver)
[INFO] [stderr]     Checking http v0.2.9
[INFO] [stderr]     Checking tokio v1.32.0
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]     Checking http-serde v1.1.3
[INFO] [stderr]     Checking tower-http v0.4.4
[INFO] [stderr]     Checking aws_lambda_events v0.10.0
[INFO] [stderr]     Checking hyper v0.14.27
[INFO] [stderr]     Checking tower v0.4.13
[INFO] [stderr]     Checking tokio-stream v0.1.14
[INFO] [stderr]     Checking lambda_runtime_api_client v0.8.0
[INFO] [stderr]     Checking lambda_runtime v0.8.2
[INFO] [stderr]     Checking lambda_http v0.8.1
[INFO] [stderr]     Checking api v0.1.0 (/opt/rustwide/workdir/api)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 52.59s
[INFO] running `Command { std: "docker" "inspect" "d5c0480ecae67f6300d989b74e7fdc11a65a5e7d1a4b4b199eb24b9546352e0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5c0480ecae67f6300d989b74e7fdc11a65a5e7d1a4b4b199eb24b9546352e0d", kill_on_drop: false }`
[INFO] [stdout] d5c0480ecae67f6300d989b74e7fdc11a65a5e7d1a4b4b199eb24b9546352e0d