[INFO] cloning repository https://github.com/FluffyProtogen/minesweeper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FluffyProtogen/minesweeper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFluffyProtogen%2Fminesweeper", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFluffyProtogen%2Fminesweeper'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 16c398b796d8a0ca1e1d47ab56aa2bfc1b3b861e
[INFO] checking FluffyProtogen/minesweeper/16c398b796d8a0ca1e1d47ab56aa2bfc1b3b861e against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFluffyProtogen%2Fminesweeper" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FluffyProtogen/minesweeper on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FluffyProtogen/minesweeper
[INFO] finished tweaking git repo https://github.com/FluffyProtogen/minesweeper
[INFO] tweaked toml for git repo https://github.com/FluffyProtogen/minesweeper written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/FluffyProtogen/minesweeper 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded command_attr v0.3.8
[INFO] [stderr]   Downloaded weezl v0.1.6
[INFO] [stderr]   Downloaded num-rational v0.4.0
[INFO] [stderr]   Downloaded lebe v0.5.1
[INFO] [stderr]   Downloaded dashmap v5.2.0
[INFO] [stderr]   Downloaded flume v0.10.12
[INFO] [stderr]   Downloaded image v0.24.1
[INFO] [stderr]   Downloaded exr v1.4.2
[INFO] [stderr]   Downloaded tiny-skia v0.6.3
[INFO] [stderr]   Downloaded jpeg-decoder v0.2.4
[INFO] [stderr]   Downloaded tiff v0.7.2
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ca5aca3817eff1c910d0d27f940a53259b9d0457dd3c5a85cef8a50a0a23197
[INFO] running `Command { std: "docker" "start" "-a" "0ca5aca3817eff1c910d0d27f940a53259b9d0457dd3c5a85cef8a50a0a23197", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ca5aca3817eff1c910d0d27f940a53259b9d0457dd3c5a85cef8a50a0a23197", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ca5aca3817eff1c910d0d27f940a53259b9d0457dd3c5a85cef8a50a0a23197", kill_on_drop: false }`
[INFO] [stdout] 0ca5aca3817eff1c910d0d27f940a53259b9d0457dd3c5a85cef8a50a0a23197
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c60a5578d85a3a3be53e581707997984a6feec231ee7af1bd13a44b2f55f141
[INFO] running `Command { std: "docker" "start" "-a" "2c60a5578d85a3a3be53e581707997984a6feec231ee7af1bd13a44b2f55f141", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.124
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling parking_lot_core v0.9.2
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]    Compiling httparse v1.7.0
[INFO] [stderr]    Compiling crc32fast v1.3.2
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[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]     Checking http v0.2.6
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]     Checking tracing-core v0.1.26
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling rayon-core v1.9.2
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking miniz_oxide v0.5.1
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking num_cpus v1.13.1
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[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking unicode-bidi v0.3.7
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]    Compiling rustls v0.20.4
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
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[INFO] [stderr]    Compiling rayon v1.5.2
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[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking cpufeatures v0.2.2
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling encoding_rs v0.8.31
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking input_buffer v0.3.1
[INFO] [stderr]     Checking nanorand v0.7.0
[INFO] [stderr]     Checking flate2 v1.0.23
[INFO] [stderr]     Checking http-body v0.4.4
[INFO] [stderr]     Checking spin v0.9.3
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling async-trait v0.1.53
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking bytemuck v1.9.1
[INFO] [stderr]     Checking weezl v0.1.6
[INFO] [stderr]     Checking png v0.17.5
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rustls-pemfile v0.3.0
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking bit_field v0.10.1
[INFO] [stderr]     Checking ipnet v2.5.0
[INFO] [stderr]     Checking ttf-parser v0.6.2
[INFO] [stderr]    Compiling serenity v0.10.10
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking lebe v0.5.1
[INFO] [stderr]     Checking gif v0.11.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking safe_arch v0.5.2
[INFO] [stderr]     Checking typemap_rev v0.1.5
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
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[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking ab_glyph_rasterizer v0.1.5
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking dashmap v5.2.0
[INFO] [stderr]     Checking sha-1 v0.9.8
[INFO] [stderr]     Checking tiny-skia v0.6.3
[INFO] [stderr]     Checking owned_ttf_parser v0.6.0
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking rusttype v0.9.2
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking jpeg-decoder v0.2.4
[INFO] [stderr]     Checking tungstenite v0.11.1
[INFO] [stderr]     Checking tiff v0.7.2
[INFO] [stderr]     Checking webpki v0.22.0
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking sct v0.6.1
[INFO] [stderr]     Checking webpki-roots v0.22.3
[INFO] [stderr]     Checking rustls v0.19.1
[INFO] [stderr]     Checking webpki-roots v0.20.0
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.20
[INFO] [stderr]    Compiling pin-project-internal v1.0.10
[INFO] [stderr]    Compiling command_attr v0.3.8
[INFO] [stderr]     Checking tokio v1.17.0
[INFO] [stderr]     Checking tracing v0.1.34
[INFO] [stderr]     Checking pin-project v1.0.10
[INFO] [stderr]     Checking flume v0.10.12
[INFO] [stderr]     Checking exr v1.4.2
[INFO] [stderr]     Checking image v0.24.1
[INFO] [stderr]     Checking tokio-util v0.7.1
[INFO] [stderr]     Checking tokio-rustls v0.23.3
[INFO] [stderr]     Checking tokio-util v0.6.9
[INFO] [stderr]     Checking tokio-rustls v0.22.0
[INFO] [stderr]     Checking async-tungstenite v0.11.0
[INFO] [stderr]     Checking h2 v0.3.13
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking hyper v0.14.18
[INFO] [stderr]     Checking hyper-rustls v0.23.0
[INFO] [stderr]     Checking reqwest v0.11.10
[INFO] [stderr]     Checking minesweeper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `ConfigKey` is never constructed
[INFO] [stdout]   --> src/data.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct ConfigKey;
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ConfigKey` is never constructed
[INFO] [stdout]   --> src/data.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct ConfigKey;
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 05s
[INFO] running `Command { std: "docker" "inspect" "2c60a5578d85a3a3be53e581707997984a6feec231ee7af1bd13a44b2f55f141", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c60a5578d85a3a3be53e581707997984a6feec231ee7af1bd13a44b2f55f141", kill_on_drop: false }`
[INFO] [stdout] 2c60a5578d85a3a3be53e581707997984a6feec231ee7af1bd13a44b2f55f141