[INFO] fetching crate average_color 0.1.1...
[INFO] checking average_color-0.1.1 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate average_color 0.1.1 into /workspace/builds/worker-87/source
[INFO] validating manifest of crates.io crate average_color 0.1.1 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate average_color 0.1.1
[INFO] finished tweaking crates.io crate average_color 0.1.1
[INFO] tweaked toml for crates.io crate average_color 0.1.1 written to /workspace/builds/worker-87/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-channel v0.3.18
[INFO] [stderr]   Downloaded async-std v1.10.0
[INFO] [stderr]   Downloaded kv-log-macro v1.0.7
[INFO] [stderr]   Downloaded futures-executor v0.3.18
[INFO] [stderr]   Downloaded async-executor v1.4.1
[INFO] [stderr]   Downloaded wepoll-ffi v0.1.2
[INFO] [stderr]   Downloaded blocking v1.1.0
[INFO] [stderr]   Downloaded polling v2.2.0
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.28
[INFO] [stderr]   Downloaded futures v0.3.18
[INFO] [stderr]   Downloaded gif v0.11.3
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.22
[INFO] [stderr]   Downloaded png v0.16.8
[INFO] [stderr]   Downloaded weezl v0.1.5
[INFO] [stderr]   Downloaded color_quant v1.1.0
[INFO] [stderr]   Downloaded adler32 v1.2.0
[INFO] [stderr]   Downloaded parking v2.0.0
[INFO] [stderr]   Downloaded waker-fn v1.1.0
[INFO] [stderr]   Downloaded gloo-timers v0.2.1
[INFO] [stderr]   Downloaded value-bag v1.0.0-alpha.8
[INFO] [stderr]   Downloaded futures-core v0.3.18
[INFO] [stderr]   Downloaded futures-io v0.3.18
[INFO] [stderr]   Downloaded futures-macro v0.3.18
[INFO] [stderr]   Downloaded futures-sink v0.3.18
[INFO] [stderr]   Downloaded futures-task v0.3.18
[INFO] [stderr]   Downloaded tiff v0.6.1
[INFO] [stderr]   Downloaded pin-utils v0.1.0
[INFO] [stderr]   Downloaded slab v0.4.5
[INFO] [stderr]   Downloaded futures-util v0.3.18
[INFO] [stderr]   Downloaded bytemuck v1.7.2
[INFO] [stderr]   Downloaded crc32fast v1.2.2
[INFO] [stderr]   Downloaded tokio-macros v1.6.0
[INFO] [stderr]   Downloaded async-mutex v1.4.0
[INFO] [stderr]   Downloaded async-channel v1.6.1
[INFO] [stderr]   Downloaded async-task v4.0.3
[INFO] [stderr]   Downloaded atomic-waker v1.0.0
[INFO] [stderr]   Downloaded async-global-executor v2.0.2
[INFO] [stderr]   Downloaded cache-padded v1.1.1
[INFO] [stderr]   Downloaded concurrent-queue v1.2.2
[INFO] [stderr]   Downloaded socket2 v0.4.2
[INFO] [stderr]   Downloaded async-io v1.6.0
[INFO] [stderr]   Downloaded event-listener v2.5.1
[INFO] [stderr]   Downloaded async-lock v2.4.0
[INFO] [stderr]   Downloaded instant v0.1.12
[INFO] [stderr]   Downloaded fastrand v1.5.0
[INFO] [stderr]   Downloaded futures-lite v1.12.0
[INFO] [stderr]   Downloaded image v0.23.14
[INFO] [stderr]   Downloaded ctor v0.1.21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eccc0efeacd6c6e29467ef2ff38172849f5f1504550f8badc162d3335933e481
[INFO] running `Command { std: "docker" "start" "-a" "eccc0efeacd6c6e29467ef2ff38172849f5f1504550f8badc162d3335933e481", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eccc0efeacd6c6e29467ef2ff38172849f5f1504550f8badc162d3335933e481", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eccc0efeacd6c6e29467ef2ff38172849f5f1504550f8badc162d3335933e481", kill_on_drop: false }`
[INFO] [stdout] eccc0efeacd6c6e29467ef2ff38172849f5f1504550f8badc162d3335933e481
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f95844469b1b4dff1a51a84547ce2813a04243da74829e4e30b87b80559415f
[INFO] running `Command { std: "docker" "start" "-a" "4f95844469b1b4dff1a51a84547ce2813a04243da74829e4e30b87b80559415f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking fastrand v1.5.0
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]    Compiling futures-channel v0.3.18
[INFO] [stderr]    Compiling futures-util v0.3.18
[INFO] [stderr]     Checking futures-sink v0.3.18
[INFO] [stderr]     Checking async-task v4.0.3
[INFO] [stderr]    Compiling crc32fast v1.2.2
[INFO] [stderr]     Checking weezl v0.1.5
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking bytemuck v1.7.2
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.8
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking async-mutex v1.4.0
[INFO] [stderr]     Checking async-lock v2.4.0
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]     Checking gif v0.11.3
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling tokio v1.14.0
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking crossbeam-epoch v0.9.5
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking socket2 v0.4.2
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking async-executor v1.4.1
[INFO] [stderr]     Checking blocking v1.1.0
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]    Compiling ctor v0.1.21
[INFO] [stderr]    Compiling futures-macro v0.3.18
[INFO] [stderr]    Compiling tokio-macros v1.6.0
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking polling v2.2.0
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking async-io v1.6.0
[INFO] [stderr]     Checking async-global-executor v2.0.2
[INFO] [stderr]     Checking async-std v1.10.0
[INFO] [stderr]     Checking futures-executor v0.3.18
[INFO] [stderr]     Checking futures v0.3.18
[INFO] [stderr]     Checking average_color v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.48s
[INFO] running `Command { std: "docker" "inspect" "4f95844469b1b4dff1a51a84547ce2813a04243da74829e4e30b87b80559415f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f95844469b1b4dff1a51a84547ce2813a04243da74829e4e30b87b80559415f", kill_on_drop: false }`
[INFO] [stdout] 4f95844469b1b4dff1a51a84547ce2813a04243da74829e4e30b87b80559415f