[INFO] fetching crate color_counter 0.2.3...
[INFO] checking color_counter-0.2.3 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate color_counter 0.2.3 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate color_counter 0.2.3 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate color_counter 0.2.3
[INFO] finished tweaking crates.io crate color_counter 0.2.3
[INFO] tweaked toml for crates.io crate color_counter 0.2.3 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate color_counter 0.2.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-integer v0.1.39
[INFO] [stderr]   Downloaded gif v0.10.1
[INFO] [stderr]   Downloaded num-iter v0.1.37
[INFO] [stderr]   Downloaded num-rational v0.2.1
[INFO] [stderr]   Downloaded crossbeam-utils v0.2.2
[INFO] [stderr]   Downloaded crossbeam-deque v0.2.0
[INFO] [stderr]   Downloaded tiff v0.3.1
[INFO] [stderr]   Downloaded rayon-core v1.4.1
[INFO] [stderr]   Downloaded num-traits v0.2.6
[INFO] [stderr]   Downloaded rayon v1.0.3
[INFO] [stderr]   Downloaded either v1.5.1
[INFO] [stderr]   Downloaded crossbeam-epoch v0.3.1
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.15
[INFO] [stderr]   Downloaded png v0.15.0
[INFO] [stderr]   Downloaded deflate v0.7.19
[INFO] [stderr]   Downloaded image v0.22.3
[INFO] [stderr]   Downloaded inflate v0.4.4
[INFO] [stderr]   Downloaded num-derive v0.2.4
[INFO] [stderr]   Downloaded color_processing v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 701720b7628634ce529870d31b5322bc6a6b3e106648c1ac23e4140373d05797
[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" "701720b7628634ce529870d31b5322bc6a6b3e106648c1ac23e4140373d05797", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "701720b7628634ce529870d31b5322bc6a6b3e106648c1ac23e4140373d05797", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "701720b7628634ce529870d31b5322bc6a6b3e106648c1ac23e4140373d05797", kill_on_drop: false }`
[INFO] [stdout] 701720b7628634ce529870d31b5322bc6a6b3e106648c1ac23e4140373d05797
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd609438ce1884e428aa7512b528ecce6846f9b431b883f43042591489f5e1b1
[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" "bd609438ce1884e428aa7512b528ecce6846f9b431b883f43042591489f5e1b1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling num-derive v0.2.4
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking color_processing v0.4.1
[INFO] [stderr]     Checking inflate v0.4.4
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking gif v0.10.1
[INFO] [stderr]     Checking deflate v0.7.19
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking png v0.15.0
[INFO] [stderr]     Checking tiff v0.3.1
[INFO] [stderr]     Checking image v0.22.3
[INFO] [stderr]     Checking color_counter v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.40s
[INFO] running `Command { std: "docker" "inspect" "bd609438ce1884e428aa7512b528ecce6846f9b431b883f43042591489f5e1b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd609438ce1884e428aa7512b528ecce6846f9b431b883f43042591489f5e1b1", kill_on_drop: false }`
[INFO] [stdout] bd609438ce1884e428aa7512b528ecce6846f9b431b883f43042591489f5e1b1