[INFO] cloning repository https://github.com/hannahellis4242/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/hannahellis4242/sudoku_solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhannahellis4242%2Fsudoku_solver", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhannahellis4242%2Fsudoku_solver'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 71a749e934a0d9f6b468f9e346303f18d6464372 [INFO] checking hannahellis4242/sudoku_solver against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhannahellis4242%2Fsudoku_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] validating manifest of git repo https://github.com/hannahellis4242/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/hannahellis4242/sudoku_solver [INFO] finished tweaking git repo https://github.com/hannahellis4242/sudoku_solver [INFO] tweaked toml for git repo https://github.com/hannahellis4242/sudoku_solver written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/hannahellis4242/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] [stderr] Updating crates.io index [INFO] [stderr] Locking 163 packages [INFO] [stderr] Adding aho-corasick v1.1.3 [INFO] [stderr] Adding android-tzdata v0.1.1 [INFO] [stderr] Adding android_system_properties v0.1.5 [INFO] [stderr] Adding ansi_term v0.12.1 [INFO] [stderr] Adding atty v0.2.14 [INFO] [stderr] Adding autocfg v0.1.8 (latest: v1.2.0) [INFO] [stderr] Adding autocfg v1.2.0 [INFO] [stderr] Adding base64 v0.9.3 (latest: v0.22.0) [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.5.0) [INFO] [stderr] Adding bumpalo v3.15.4 [INFO] [stderr] Adding byteorder v1.5.0 [INFO] [stderr] Adding bytes v0.4.12 (latest: v1.6.0) [INFO] [stderr] Adding cc v1.0.90 [INFO] [stderr] Adding cfg-if v0.1.10 (latest: v1.0.0) [INFO] [stderr] Adding cfg-if v1.0.0 [INFO] [stderr] Adding chrono v0.4.37 [INFO] [stderr] Adding clap v2.34.0 (latest: v4.5.4) [INFO] [stderr] Adding cloudabi v0.0.3 (latest: v0.1.0) [INFO] [stderr] Adding core-foundation-sys v0.8.6 [INFO] [stderr] Adding crossbeam-deque v0.7.4 (latest: v0.8.5) [INFO] [stderr] Adding crossbeam-epoch v0.8.2 (latest: v0.9.18) [INFO] [stderr] Adding crossbeam-queue v0.2.3 (latest: v0.3.11) [INFO] [stderr] Adding crossbeam-utils v0.7.2 (latest: v0.8.19) [INFO] [stderr] Adding fnv v1.0.7 [INFO] [stderr] Adding form_urlencoded v1.2.1 [INFO] [stderr] Adding fuchsia-cprng v0.1.1 [INFO] [stderr] Adding fuchsia-zircon v0.3.3 [INFO] [stderr] Adding fuchsia-zircon-sys v0.3.3 [INFO] [stderr] Adding futures v0.1.31 (latest: v0.3.30) [INFO] [stderr] Adding futures-cpupool v0.1.8 [INFO] [stderr] Adding hermit-abi v0.1.19 (latest: v0.3.9) [INFO] [stderr] Adding hermit-abi v0.3.9 [INFO] [stderr] Adding httparse v1.8.0 [INFO] [stderr] Adding hyper v0.11.27 (latest: v1.2.0) [INFO] [stderr] Adding iana-time-zone v0.1.60 [INFO] [stderr] Adding iana-time-zone-haiku v0.1.2 [INFO] [stderr] Adding idna v0.1.5 (latest: v0.5.0) [INFO] [stderr] Adding idna v0.2.3 (latest: v0.5.0) [INFO] [stderr] Adding idna v0.5.0 [INFO] [stderr] Adding iovec v0.1.4 [INFO] [stderr] Adding itoa v1.0.11 [INFO] [stderr] Adding js-sys v0.3.69 [INFO] [stderr] Adding jsonway v2.0.0 [INFO] [stderr] Adding kernel32-sys v0.2.2 [INFO] [stderr] Adding language-tags v0.2.2 (latest: v0.3.2) [INFO] [stderr] Adding lazy_static v1.4.0 [INFO] [stderr] Adding libc v0.2.153 [INFO] [stderr] Adding lock_api v0.3.4 (latest: v0.4.11) [INFO] [stderr] Adding log v0.3.9 (latest: v0.4.21) [INFO] [stderr] Adding log v0.4.21 [INFO] [stderr] Adding matches v0.1.10 [INFO] [stderr] Adding maybe-uninit v2.0.0 [INFO] [stderr] Adding memchr v2.7.2 [INFO] [stderr] Adding memoffset v0.5.6 (latest: v0.9.1) [INFO] [stderr] Adding mime v0.3.17 [INFO] [stderr] Adding mio v0.6.23 (latest: v0.8.11) [INFO] [stderr] Adding mio-uds v0.6.8 [INFO] [stderr] Adding miow v0.2.2 (latest: v0.6.0) [INFO] [stderr] Adding net2 v0.2.39 [INFO] [stderr] Adding num-traits v0.2.18 [INFO] [stderr] Adding num_cpus v1.16.0 [INFO] [stderr] Adding once_cell v1.19.0 [INFO] [stderr] Adding parking_lot v0.9.0 (latest: v0.12.1) [INFO] [stderr] Adding parking_lot_core v0.6.3 (latest: v0.9.9) [INFO] [stderr] Adding percent-encoding v1.0.1 (latest: v2.3.1) [INFO] [stderr] Adding percent-encoding v2.3.1 [INFO] [stderr] Adding phf v0.7.24 (latest: v0.11.2) [INFO] [stderr] Adding phf_codegen v0.7.24 (latest: v0.11.2) [INFO] [stderr] Adding phf_generator v0.7.24 (latest: v0.11.2) [INFO] [stderr] Adding phf_shared v0.7.24 (latest: v0.11.2) [INFO] [stderr] Adding proc-macro2 v1.0.79 [INFO] [stderr] Adding publicsuffix v1.5.6 (latest: v2.2.3) [INFO] [stderr] Adding quote v1.0.35 [INFO] [stderr] Adding rand v0.3.23 (latest: v0.8.5) [INFO] [stderr] Adding rand v0.4.6 (latest: v0.8.5) [INFO] [stderr] Adding rand v0.6.5 (latest: v0.8.5) [INFO] [stderr] Adding rand_chacha v0.1.1 (latest: v0.3.1) [INFO] [stderr] Adding rand_core v0.3.1 (latest: v0.6.4) [INFO] [stderr] Adding rand_core v0.4.2 (latest: v0.6.4) [INFO] [stderr] Adding rand_hc v0.1.0 (latest: v0.3.2) [INFO] [stderr] Adding rand_isaac v0.1.1 (latest: v0.3.0) [INFO] [stderr] Adding rand_jitter v0.1.4 (latest: v0.4.0) [INFO] [stderr] Adding rand_os v0.1.3 (latest: v0.2.2) [INFO] [stderr] Adding rand_pcg v0.1.2 (latest: v0.3.1) [INFO] [stderr] Adding rand_xorshift v0.1.1 (latest: v0.3.0) [INFO] [stderr] Adding rdrand v0.4.0 (latest: v0.8.3) [INFO] [stderr] Adding redox_syscall v0.1.57 (latest: v0.5.1) [INFO] [stderr] Adding regex v1.10.4 [INFO] [stderr] Adding regex-automata v0.4.6 [INFO] [stderr] Adding regex-syntax v0.8.3 [INFO] [stderr] Adding relay v0.1.1 [INFO] [stderr] Adding rustc_version v0.2.3 (latest: v0.4.0) [INFO] [stderr] Adding ryu v1.0.17 [INFO] [stderr] Adding safemem v0.3.3 [INFO] [stderr] Adding scoped-tls v0.1.2 (latest: v1.0.1) [INFO] [stderr] Adding scopeguard v1.2.0 [INFO] [stderr] Adding semver v0.9.0 (latest: v1.0.22) [INFO] [stderr] Adding semver-parser v0.7.0 (latest: v0.10.2) [INFO] [stderr] Adding serde v1.0.197 [INFO] [stderr] Adding serde_derive v1.0.197 [INFO] [stderr] Adding serde_json v1.0.115 [INFO] [stderr] Adding siphasher v0.2.3 (latest: v1.0.1) [INFO] [stderr] Adding slab v0.3.0 (latest: v0.4.9) [INFO] [stderr] Adding slab v0.4.9 [INFO] [stderr] Adding smallvec v0.2.1 (latest: v1.13.2) [INFO] [stderr] Adding smallvec v0.6.14 (latest: v1.13.2) [INFO] [stderr] Adding strsim v0.8.0 (latest: v0.11.1) [INFO] [stderr] Adding syn v2.0.58 [INFO] [stderr] Adding take v0.1.0 [INFO] [stderr] Adding textwrap v0.11.0 (latest: v0.16.1) [INFO] [stderr] Adding time v0.1.45 (latest: v0.3.34) [INFO] [stderr] Adding tinyvec v1.6.0 [INFO] [stderr] Adding tinyvec_macros v0.1.1 [INFO] [stderr] Adding tokio v0.1.22 (latest: v1.37.0) [INFO] [stderr] Adding tokio-codec v0.1.2 [INFO] [stderr] Adding tokio-core v0.1.18 [INFO] [stderr] Adding tokio-current-thread v0.1.7 [INFO] [stderr] Adding tokio-executor v0.1.10 [INFO] [stderr] Adding tokio-fs v0.1.7 [INFO] [stderr] Adding tokio-io v0.1.13 [INFO] [stderr] Adding tokio-proto v0.1.1 [INFO] [stderr] Adding tokio-reactor v0.1.12 [INFO] [stderr] Adding tokio-service v0.1.0 [INFO] [stderr] Adding tokio-sync v0.1.8 [INFO] [stderr] Adding tokio-tcp v0.1.4 [INFO] [stderr] Adding tokio-threadpool v0.1.18 [INFO] [stderr] Adding tokio-timer v0.2.13 [INFO] [stderr] Adding tokio-udp v0.1.6 [INFO] [stderr] Adding tokio-uds v0.2.7 [INFO] [stderr] Adding try-lock v0.1.0 (latest: v0.2.5) [INFO] [stderr] Adding unicase v2.7.0 [INFO] [stderr] Adding unicode-bidi v0.3.15 [INFO] [stderr] Adding unicode-ident v1.0.12 [INFO] [stderr] Adding unicode-normalization v0.1.23 [INFO] [stderr] Adding unicode-width v0.1.11 [INFO] [stderr] Adding url v1.7.2 (latest: v2.5.0) [INFO] [stderr] Adding url v2.5.0 [INFO] [stderr] Adding uuid v0.7.4 (latest: v1.8.0) [INFO] [stderr] Adding valico v2.4.2 (latest: v4.0.0) [INFO] [stderr] Adding vec_map v0.8.2 [INFO] [stderr] Adding version_check v0.9.4 [INFO] [stderr] Adding want v0.0.4 (latest: v0.3.1) [INFO] [stderr] Adding wasi v0.10.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0) [INFO] [stderr] Adding wasm-bindgen v0.2.92 [INFO] [stderr] Adding wasm-bindgen-backend v0.2.92 [INFO] [stderr] Adding wasm-bindgen-macro v0.2.92 [INFO] [stderr] Adding wasm-bindgen-macro-support v0.2.92 [INFO] [stderr] Adding wasm-bindgen-shared v0.2.92 [INFO] [stderr] Adding winapi v0.2.8 (latest: v0.3.9) [INFO] [stderr] Adding winapi v0.3.9 [INFO] [stderr] Adding winapi-build v0.1.1 [INFO] [stderr] Adding winapi-i686-pc-windows-gnu v0.4.0 [INFO] [stderr] Adding winapi-x86_64-pc-windows-gnu v0.4.0 [INFO] [stderr] Adding windows-core v0.52.0 (latest: v0.55.0) [INFO] [stderr] Adding windows-targets v0.52.4 [INFO] [stderr] Adding windows_aarch64_gnullvm v0.52.4 [INFO] [stderr] Adding windows_aarch64_msvc v0.52.4 [INFO] [stderr] Adding windows_i686_gnu v0.52.4 [INFO] [stderr] Adding windows_i686_msvc v0.52.4 [INFO] [stderr] Adding windows_x86_64_gnu v0.52.4 [INFO] [stderr] Adding windows_x86_64_gnullvm v0.52.4 [INFO] [stderr] Adding windows_x86_64_msvc v0.52.4 [INFO] [stderr] Adding ws2_32-sys v0.2.1 [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded try-lock v0.1.0 [INFO] [stderr] Downloaded want v0.0.4 [INFO] [stderr] Downloaded valico v2.4.2 [INFO] [stderr] Downloaded hyper v0.11.27 [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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b8ab5d73dce20e1f0116c94770ae921f6c5cfb2d68eba5d701649d8f7b0ddb7b [INFO] running `Command { std: "docker" "start" "-a" "b8ab5d73dce20e1f0116c94770ae921f6c5cfb2d68eba5d701649d8f7b0ddb7b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b8ab5d73dce20e1f0116c94770ae921f6c5cfb2d68eba5d701649d8f7b0ddb7b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b8ab5d73dce20e1f0116c94770ae921f6c5cfb2d68eba5d701649d8f7b0ddb7b", kill_on_drop: false }` [INFO] [stdout] b8ab5d73dce20e1f0116c94770ae921f6c5cfb2d68eba5d701649d8f7b0ddb7b [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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7ec5a97500604ba5e5e835e23275d770a66eb703e40457e6f3e61e9448aaa887 [INFO] running `Command { std: "docker" "start" "-a" "7ec5a97500604ba5e5e835e23275d770a66eb703e40457e6f3e61e9448aaa887", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.2.0 [INFO] [stderr] Checking futures v0.1.31 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Checking scopeguard v1.2.0 [INFO] [stderr] Checking byteorder v1.5.0 [INFO] [stderr] Checking unicode-bidi v0.3.15 [INFO] [stderr] Compiling siphasher v0.2.3 [INFO] [stderr] Checking matches v0.1.10 [INFO] [stderr] Compiling serde v1.0.197 [INFO] [stderr] Checking memchr v2.7.2 [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Checking unicode-normalization v0.1.23 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking smallvec v0.6.14 [INFO] [stderr] Checking net2 v0.2.39 [INFO] [stderr] Checking lock_api v0.3.4 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Compiling serde_json v1.0.115 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling autocfg v0.1.8 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Compiling phf_shared v0.7.24 [INFO] [stderr] Compiling unicase v2.7.0 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking itoa v1.0.11 [INFO] [stderr] Checking regex-syntax v0.8.3 [INFO] [stderr] Checking percent-encoding v1.0.1 [INFO] [stderr] Checking scoped-tls v0.1.2 [INFO] [stderr] Checking log v0.3.9 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling slab v0.4.9 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling memoffset v0.5.6 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling num-traits v0.2.18 [INFO] [stderr] Compiling parking_lot_core v0.6.3 [INFO] [stderr] Compiling parking_lot v0.9.0 [INFO] [stderr] Checking idna v0.5.0 [INFO] [stderr] Checking aho-corasick v1.1.3 [INFO] [stderr] Checking mio v0.6.23 [INFO] [stderr] Checking idna v0.1.5 [INFO] [stderr] Checking idna v0.2.3 [INFO] [stderr] Checking rand v0.3.23 [INFO] [stderr] Checking try-lock v0.1.0 [INFO] [stderr] Checking smallvec v0.2.1 [INFO] [stderr] Checking slab v0.3.0 [INFO] [stderr] Checking safemem v0.3.3 [INFO] [stderr] Checking url v2.5.0 [INFO] [stderr] Checking tokio-io v0.1.13 [INFO] [stderr] Checking tokio-sync v0.1.8 [INFO] [stderr] Checking tokio-service v0.1.0 [INFO] [stderr] Checking take v0.1.0 [INFO] [stderr] Checking iana-time-zone v0.1.60 [INFO] [stderr] Checking base64 v0.9.3 [INFO] [stderr] Checking tokio-executor v0.1.10 [INFO] [stderr] Checking crossbeam-queue v0.2.3 [INFO] [stderr] Checking tokio-current-thread v0.1.7 [INFO] [stderr] Checking tokio-timer v0.2.13 [INFO] [stderr] Checking crossbeam-deque v0.7.4 [INFO] [stderr] Checking futures-cpupool v0.1.8 [INFO] [stderr] Checking tokio-codec v0.1.2 [INFO] [stderr] Checking want v0.0.4 [INFO] [stderr] Checking relay v0.1.1 [INFO] [stderr] Checking url v1.7.2 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking phf v0.7.24 [INFO] [stderr] Checking publicsuffix v1.5.6 [INFO] [stderr] Checking time v0.1.45 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking tokio-threadpool v0.1.18 [INFO] [stderr] Checking tokio-reactor v0.1.12 [INFO] [stderr] Checking mio-uds v0.6.8 [INFO] [stderr] Checking language-tags v0.2.2 [INFO] [stderr] Checking either v1.5.0 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking uuid v0.7.4 [INFO] [stderr] Checking itertools v0.7.8 [INFO] [stderr] Checking tokio-udp v0.1.6 [INFO] [stderr] Checking tokio-uds v0.2.7 [INFO] [stderr] Checking tokio-tcp v0.1.4 [INFO] [stderr] Compiling phf_generator v0.7.24 [INFO] [stderr] Compiling phf_codegen v0.7.24 [INFO] [stderr] Compiling valico v2.4.2 [INFO] [stderr] Checking regex-automata v0.4.6 [INFO] [stderr] Checking tokio-fs v0.1.7 [INFO] [stderr] Checking tokio v0.1.22 [INFO] [stderr] Checking tokio-core v0.1.18 [INFO] [stderr] Checking chrono v0.4.37 [INFO] [stderr] Checking tokio-proto v0.1.1 [INFO] [stderr] Checking hyper v0.11.27 [INFO] [stderr] Checking jsonway v2.0.0 [INFO] [stderr] Checking regex v1.10.4 [INFO] [stderr] Checking sudoku_solver2 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `helper` is imported redundantly [INFO] [stdout] --> src/sudoku/mod.rs:35:9 [INFO] [stdout] | [INFO] [stdout] 31 | mod helper; [INFO] [stdout] | ----------- the item `helper` is already defined here [INFO] [stdout] ... [INFO] [stdout] 35 | use sudoku::helper; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `serde_json` is imported redundantly [INFO] [stdout] --> src/main.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 5 | extern crate serde_json; [INFO] [stdout] | ------------------------ the item `serde_json` is already imported here [INFO] [stdout] ... [INFO] [stdout] 18 | use serde_json; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `helper` is imported redundantly [INFO] [stdout] --> src/sudoku/mod.rs:35:9 [INFO] [stdout] | [INFO] [stdout] 31 | mod helper; [INFO] [stdout] | ----------- the item `helper` is already defined here [INFO] [stdout] ... [INFO] [stdout] 35 | use sudoku::helper; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `serde_json` is imported redundantly [INFO] [stdout] --> src/main.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 5 | extern crate serde_json; [INFO] [stdout] | ------------------------ the item `serde_json` is already imported here [INFO] [stdout] ... [INFO] [stdout] 18 | use serde_json; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:153:23 [INFO] [stdout] | [INFO] [stdout] 153 | type Future = Box>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 153 | type Future = Box>; [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:153:23 [INFO] [stdout] | [INFO] [stdout] 153 | type Future = Box>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 153 | type Future = Box>; [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/main.rs:143:49 [INFO] [stdout] | [INFO] [stdout] 143 | Err(error) => make_error_response(error.description()), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/main.rs:143:49 [INFO] [stdout] | [INFO] [stdout] 143 | Err(error) => make_error_response(error.description()), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.41s [INFO] running `Command { std: "docker" "inspect" "7ec5a97500604ba5e5e835e23275d770a66eb703e40457e6f3e61e9448aaa887", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7ec5a97500604ba5e5e835e23275d770a66eb703e40457e6f3e61e9448aaa887", kill_on_drop: false }` [INFO] [stdout] 7ec5a97500604ba5e5e835e23275d770a66eb703e40457e6f3e61e9448aaa887 [INFO] checking hannahellis4242/sudoku_solver against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhannahellis4242%2Fsudoku_solver" "/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/hannahellis4242/sudoku_solver on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/hannahellis4242/sudoku_solver [INFO] finished tweaking git repo https://github.com/hannahellis4242/sudoku_solver [INFO] tweaked toml for git repo https://github.com/hannahellis4242/sudoku_solver written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/hannahellis4242/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 58630e60139b7c571ba4fd485227b784e5bc5430ff2f813838719d9135da29ae [INFO] running `Command { std: "docker" "start" "-a" "58630e60139b7c571ba4fd485227b784e5bc5430ff2f813838719d9135da29ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "58630e60139b7c571ba4fd485227b784e5bc5430ff2f813838719d9135da29ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "58630e60139b7c571ba4fd485227b784e5bc5430ff2f813838719d9135da29ae", kill_on_drop: false }` [INFO] [stdout] 58630e60139b7c571ba4fd485227b784e5bc5430ff2f813838719d9135da29ae [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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d324bce3485019540cf6972766aa06cf7406f63ce6a6ece2ec2c720b21c3e7cd [INFO] running `Command { std: "docker" "start" "-a" "d324bce3485019540cf6972766aa06cf7406f63ce6a6ece2ec2c720b21c3e7cd", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.2.0 [INFO] [stderr] Checking futures v0.1.31 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Checking scopeguard v1.2.0 [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Checking byteorder v1.5.0 [INFO] [stderr] Checking unicode-bidi v0.3.15 [INFO] [stderr] Compiling siphasher v0.2.3 [INFO] [stderr] Checking matches v0.1.10 [INFO] [stderr] Compiling serde v1.0.197 [INFO] [stderr] Compiling serde_json v1.0.115 [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Checking unicode-normalization v0.1.23 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking smallvec v0.6.14 [INFO] [stderr] Checking net2 v0.2.39 [INFO] [stderr] Compiling autocfg v0.1.8 [INFO] [stderr] Checking lock_api v0.3.4 [INFO] [stderr] Compiling phf_shared v0.7.24 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Checking memchr v2.7.2 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling slab v0.4.9 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling memoffset v0.5.6 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling num-traits v0.2.18 [INFO] [stderr] Compiling parking_lot_core v0.6.3 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Compiling parking_lot v0.9.0 [INFO] [stderr] Compiling unicase v2.7.0 [INFO] [stderr] Checking idna v0.5.0 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking itoa v1.0.11 [INFO] [stderr] Checking mio v0.6.23 [INFO] [stderr] Checking percent-encoding v1.0.1 [INFO] [stderr] Checking scoped-tls v0.1.2 [INFO] [stderr] Checking regex-syntax v0.8.3 [INFO] [stderr] Checking idna v0.1.5 [INFO] [stderr] Checking idna v0.2.3 [INFO] [stderr] Checking crossbeam-queue v0.2.3 [INFO] [stderr] Checking aho-corasick v1.1.3 [INFO] [stderr] Checking log v0.3.9 [INFO] [stderr] Checking take v0.1.0 [INFO] [stderr] Checking smallvec v0.2.1 [INFO] [stderr] Checking try-lock v0.1.0 [INFO] [stderr] Checking slab v0.3.0 [INFO] [stderr] Checking url v2.5.0 [INFO] [stderr] Checking rand v0.3.23 [INFO] [stderr] Checking iana-time-zone v0.1.60 [INFO] [stderr] Checking safemem v0.3.3 [INFO] [stderr] Checking url v1.7.2 [INFO] [stderr] Checking base64 v0.9.3 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking phf v0.7.24 [INFO] [stderr] Checking crossbeam-deque v0.7.4 [INFO] [stderr] Checking tokio-executor v0.1.10 [INFO] [stderr] Checking tokio-io v0.1.13 [INFO] [stderr] Checking tokio-sync v0.1.8 [INFO] [stderr] Checking tokio-current-thread v0.1.7 [INFO] [stderr] Checking tokio-timer v0.2.13 [INFO] [stderr] Checking mio-uds v0.6.8 [INFO] [stderr] Checking tokio-service v0.1.0 [INFO] [stderr] Checking relay v0.1.1 [INFO] [stderr] Checking tokio-threadpool v0.1.18 [INFO] [stderr] Checking want v0.0.4 [INFO] [stderr] Checking publicsuffix v1.5.6 [INFO] [stderr] Checking futures-cpupool v0.1.8 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking time v0.1.45 [INFO] [stderr] Checking either v1.5.0 [INFO] [stderr] Checking language-tags v0.2.2 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking itertools v0.7.8 [INFO] [stderr] Checking uuid v0.7.4 [INFO] [stderr] Checking tokio-codec v0.1.2 [INFO] [stderr] Checking tokio-reactor v0.1.12 [INFO] [stderr] Checking chrono v0.4.37 [INFO] [stderr] Checking tokio-uds v0.2.7 [INFO] [stderr] Checking tokio-udp v0.1.6 [INFO] [stderr] Checking tokio-tcp v0.1.4 [INFO] [stderr] Compiling phf_generator v0.7.24 [INFO] [stderr] Checking tokio-fs v0.1.7 [INFO] [stderr] Compiling phf_codegen v0.7.24 [INFO] [stderr] Compiling valico v2.4.2 [INFO] [stderr] Checking tokio v0.1.22 [INFO] [stderr] Checking tokio-core v0.1.18 [INFO] [stderr] Checking tokio-proto v0.1.1 [INFO] [stderr] Checking regex-automata v0.4.6 [INFO] [stderr] Checking hyper v0.11.27 [INFO] [stderr] Checking jsonway v2.0.0 [INFO] [stderr] Checking regex v1.10.4 [INFO] [stderr] Checking sudoku_solver2 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `helper` is imported redundantly [INFO] [stdout] --> src/sudoku/mod.rs:35:9 [INFO] [stdout] | [INFO] [stdout] 31 | mod helper; [INFO] [stdout] | ----------- the item `helper` is already defined here [INFO] [stdout] ... [INFO] [stdout] 35 | use sudoku::helper; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `serde_json` is imported redundantly [INFO] [stdout] --> src/main.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 5 | extern crate serde_json; [INFO] [stdout] | ------------------------ the item `serde_json` is already imported here [INFO] [stdout] ... [INFO] [stdout] 18 | use serde_json; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `helper` is imported redundantly [INFO] [stdout] --> src/sudoku/mod.rs:35:9 [INFO] [stdout] | [INFO] [stdout] 31 | mod helper; [INFO] [stdout] | ----------- the item `helper` is already defined here [INFO] [stdout] ... [INFO] [stdout] 35 | use sudoku::helper; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `serde_json` is imported redundantly [INFO] [stdout] --> src/main.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 5 | extern crate serde_json; [INFO] [stdout] | ------------------------ the item `serde_json` is already imported here [INFO] [stdout] ... [INFO] [stdout] 18 | use serde_json; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:153:23 [INFO] [stdout] | [INFO] [stdout] 153 | type Future = Box>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 153 | type Future = Box>; [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:153:23 [INFO] [stdout] | [INFO] [stdout] 153 | type Future = Box>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 153 | type Future = Box>; [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/main.rs:143:49 [INFO] [stdout] | [INFO] [stdout] 143 | Err(error) => make_error_response(error.description()), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/main.rs:143:49 [INFO] [stdout] | [INFO] [stdout] 143 | Err(error) => make_error_response(error.description()), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.62s [INFO] running `Command { std: "docker" "inspect" "d324bce3485019540cf6972766aa06cf7406f63ce6a6ece2ec2c720b21c3e7cd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d324bce3485019540cf6972766aa06cf7406f63ce6a6ece2ec2c720b21c3e7cd", kill_on_drop: false }` [INFO] [stdout] d324bce3485019540cf6972766aa06cf7406f63ce6a6ece2ec2c720b21c3e7cd