[INFO] fetching crate wordfeud-ocr 0.1.1...
[INFO] checking wordfeud-ocr-0.1.1 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate wordfeud-ocr 0.1.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate wordfeud-ocr 0.1.1 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wordfeud-ocr 0.1.1
[INFO] finished tweaking crates.io crate wordfeud-ocr 0.1.1
[INFO] tweaked toml for crates.io crate wordfeud-ocr 0.1.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate wordfeud-ocr 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d9882da291b3e128752bb87e8d95aca25ccf8a361040edc3a37aefa89c5af39
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4d9882da291b3e128752bb87e8d95aca25ccf8a361040edc3a37aefa89c5af39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d9882da291b3e128752bb87e8d95aca25ccf8a361040edc3a37aefa89c5af39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d9882da291b3e128752bb87e8d95aca25ccf8a361040edc3a37aefa89c5af39", kill_on_drop: false }`
[INFO] [stdout] 4d9882da291b3e128752bb87e8d95aca25ccf8a361040edc3a37aefa89c5af39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 422d0905216f939f94840c2233a3c4791300707f9d451b24dbe03f6099583299
[INFO] running `Command { std: "docker" "start" "-a" "422d0905216f939f94840c2233a3c4791300707f9d451b24dbe03f6099583299", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]     Checking ttf-parser v0.6.2
[INFO] [stderr]     Checking bytemuck v1.4.1
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]     Checking ab_glyph_rasterizer v0.1.4
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]    Compiling anyhow v1.0.35
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking conv v0.3.3
[INFO] [stderr]     Checking crc32fast v1.2.1
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.3.1
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking owned_ttf_parser v0.6.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rusttype v0.9.2
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking rulinalg v0.4.2
[INFO] [stderr]     Checking num v0.3.1
[INFO] [stderr]     Checking image v0.23.12
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]     Checking imageproc v0.22.0
[INFO] [stderr]     Checking wordfeud-ocr v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `index`
[INFO] [stdout]   --> src/recognizer.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     index: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `tag`
[INFO] [stdout]   --> src/recognizer.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     tag: String,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `min_value`
[INFO] [stdout]   --> src/recognizer.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     min_value: f32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `min_value_location`
[INFO] [stdout]   --> src/recognizer.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     min_value_location: (u32, u32),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `index`
[INFO] [stdout]   --> src/recognizer.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     index: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `tag`
[INFO] [stdout]   --> src/recognizer.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     tag: String,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `min_value`
[INFO] [stdout]   --> src/recognizer.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     min_value: f32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `min_value_location`
[INFO] [stdout]   --> src/recognizer.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     min_value_location: (u32, u32),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.75s
[INFO] running `Command { std: "docker" "inspect" "422d0905216f939f94840c2233a3c4791300707f9d451b24dbe03f6099583299", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "422d0905216f939f94840c2233a3c4791300707f9d451b24dbe03f6099583299", kill_on_drop: false }`
[INFO] [stdout] 422d0905216f939f94840c2233a3c4791300707f9d451b24dbe03f6099583299