[INFO] fetching crate dssim-core 3.1.0...
[INFO] checking dssim-core-3.1.0 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] extracting crate dssim-core 3.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate dssim-core 3.1.0 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dssim-core 3.1.0
[INFO] finished tweaking crates.io crate dssim-core 3.1.0
[INFO] tweaked toml for crates.io crate dssim-core 3.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e4f131a31b5a529ee2978c5b2160289ead4d5391b8cbef5c3d04aebf40153754
[INFO] running `Command { std: "docker" "start" "-a" "e4f131a31b5a529ee2978c5b2160289ead4d5391b8cbef5c3d04aebf40153754", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4f131a31b5a529ee2978c5b2160289ead4d5391b8cbef5c3d04aebf40153754", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4f131a31b5a529ee2978c5b2160289ead4d5391b8cbef5c3d04aebf40153754", kill_on_drop: false }`
[INFO] [stdout] e4f131a31b5a529ee2978c5b2160289ead4d5391b8cbef5c3d04aebf40153754
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f074922ee3945629bf75c62d25d760841e3fb711e9ca863bdbeaa358111355d7
[INFO] running `Command { std: "docker" "start" "-a" "f074922ee3945629bf75c62d25d760841e3fb711e9ca863bdbeaa358111355d7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]     Checking ahash v0.4.7
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking bytemuck v1.7.2
[INFO] [stderr]     Checking imgref v1.9.1
[INFO] [stderr]     Checking crossbeam-utils v0.8.5
[INFO] [stderr]     Checking rgb v0.8.27
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking fallible_collections v0.4.2
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking lodepng v3.4.6
[INFO] [stderr]     Checking dssim-core v3.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.73s
[INFO] running `Command { std: "docker" "inspect" "f074922ee3945629bf75c62d25d760841e3fb711e9ca863bdbeaa358111355d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f074922ee3945629bf75c62d25d760841e3fb711e9ca863bdbeaa358111355d7", kill_on_drop: false }`
[INFO] [stdout] f074922ee3945629bf75c62d25d760841e3fb711e9ca863bdbeaa358111355d7