[INFO] fetching crate img_hash 3.1.0...
[INFO] checking img_hash-3.1.0 against beta for pr-78714
[INFO] extracting crate img_hash 3.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate img_hash 3.1.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate img_hash 3.1.0
[INFO] finished tweaking crates.io crate img_hash 3.1.0
[INFO] tweaked toml for crates.io crate img_hash 3.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate img_hash 3.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9fe026e3fed3a34c430ef220e3a89434ab3646d06712acbfc69606facf365aa5
[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" "9fe026e3fed3a34c430ef220e3a89434ab3646d06712acbfc69606facf365aa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9fe026e3fed3a34c430ef220e3a89434ab3646d06712acbfc69606facf365aa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fe026e3fed3a34c430ef220e3a89434ab3646d06712acbfc69606facf365aa5", kill_on_drop: false }`
[INFO] [stdout] 9fe026e3fed3a34c430ef220e3a89434ab3646d06712acbfc69606facf365aa5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 46b8c34d12d2dfb12283184ff05181b77deac69fd1564246d15833e0456aa59b
[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" "46b8c34d12d2dfb12283184ff05181b77deac69fd1564246d15833e0456aa59b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.61
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling serde v1.0.98
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]     Checking strength_reduce v0.2.3
[INFO] [stderr]     Checking transpose v0.1.0
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking cast v0.2.2
[INFO] [stderr]     Checking regex-syntax v0.6.14
[INFO] [stderr]     Checking oorandom v11.1.0
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]     Checking gif v0.10.2
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking crossbeam-utils v0.7.0
[INFO] [stderr]     Checking plotters v0.2.12
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking crossbeam-epoch v0.8.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking transpose v0.2.0
[INFO] [stderr]     Checking png v0.14.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.2
[INFO] [stderr]     Checking rustfft v3.0.1
[INFO] [stderr]     Checking criterion-plot v0.4.1
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking rustdct v0.4.0
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking bstr v0.2.7
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking image v0.21.2
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking tinytemplate v1.0.2
[INFO] [stderr]     Checking criterion v0.3.1
[INFO] [stderr]     Checking img_hash v3.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.63s
[INFO] running `Command { std: "docker" "inspect" "46b8c34d12d2dfb12283184ff05181b77deac69fd1564246d15833e0456aa59b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46b8c34d12d2dfb12283184ff05181b77deac69fd1564246d15833e0456aa59b", kill_on_drop: false }`
[INFO] [stdout] 46b8c34d12d2dfb12283184ff05181b77deac69fd1564246d15833e0456aa59b