[INFO] cloning repository https://github.com/Alon-L/benford_law_images
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Alon-L/benford_law_images" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlon-L%2Fbenford_law_images", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlon-L%2Fbenford_law_images'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 03184133f33af7297ebb5a40e13e0495a53a6818
[INFO] checking Alon-L/benford_law_images against try#7b3565da729099dbe807466fcd118fb2815986e0 for pr-81789
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlon-L%2Fbenford_law_images" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Alon-L/benford_law_images on toolchain 7b3565da729099dbe807466fcd118fb2815986e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Alon-L/benford_law_images
[INFO] finished tweaking git repo https://github.com/Alon-L/benford_law_images
[INFO] tweaked toml for git repo https://github.com/Alon-L/benford_law_images written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/Alon-L/benford_law_images already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--no-deps" "--format-version=1", 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] 2e994d003000c4fc1158997af23f39abfd2698e7f30f3e0704590f11d0973ec8
[INFO] running `Command { std: "docker" "start" "-a" "2e994d003000c4fc1158997af23f39abfd2698e7f30f3e0704590f11d0973ec8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e994d003000c4fc1158997af23f39abfd2698e7f30f3e0704590f11d0973ec8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e994d003000c4fc1158997af23f39abfd2698e7f30f3e0704590f11d0973ec8", kill_on_drop: false }`
[INFO] [stdout] 2e994d003000c4fc1158997af23f39abfd2698e7f30f3e0704590f11d0973ec8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 645ea6c9024fff02c0a744c6450c0429d9634768a4272ecb33319eca5f14f108
[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" "645ea6c9024fff02c0a744c6450c0429d9634768a4272ecb33319eca5f14f108", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling cc v1.0.58
[INFO] [stderr]    Compiling rayon-core v1.7.1
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking bytemuck v1.3.1
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]     Checking crossbeam-utils v0.7.2
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]    Compiling pathfinder_simd v0.5.0
[INFO] [stderr]     Checking png v0.16.7
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]     Checking tiff v0.5.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]    Compiling servo-fontconfig-sys v4.0.9
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.5
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking pathfinder_geometry v0.5.1
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.1.0
[INFO] [stderr]     Checking freetype v0.4.1
[INFO] [stderr]     Checking rusttype v0.8.3
[INFO] [stderr]     Checking servo-fontconfig v0.4.0
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]     Checking font-kit v0.7.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking image v0.23.8
[INFO] [stderr]    Compiling palette_derive v0.5.0
[INFO] [stderr]     Checking palette v0.5.0
[INFO] [stderr]     Checking plotters v0.2.15
[INFO] [stderr]     Checking benford_law_images v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let mut total = reader.pixels_size();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let mut total = reader.pixels_size();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` 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 [unoptimized + debuginfo] target(s) in 55.42s
[INFO] running `Command { std: "docker" "inspect" "645ea6c9024fff02c0a744c6450c0429d9634768a4272ecb33319eca5f14f108", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "645ea6c9024fff02c0a744c6450c0429d9634768a4272ecb33319eca5f14f108", kill_on_drop: false }`
[INFO] [stdout] 645ea6c9024fff02c0a744c6450c0429d9634768a4272ecb33319eca5f14f108