[INFO] fetching crate zerodmg-utils 0.1.9...
[INFO] checking zerodmg-utils-0.1.9 against beta for pr-78714
[INFO] extracting crate zerodmg-utils 0.1.9 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate zerodmg-utils 0.1.9 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 zerodmg-utils 0.1.9
[INFO] finished tweaking crates.io crate zerodmg-utils 0.1.9
[INFO] tweaked toml for crates.io crate zerodmg-utils 0.1.9 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] ebca21c0cb43f547bd3d929a2420e42204cf129a03edfc1365d0989298fd0d6c
[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" "ebca21c0cb43f547bd3d929a2420e42204cf129a03edfc1365d0989298fd0d6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ebca21c0cb43f547bd3d929a2420e42204cf129a03edfc1365d0989298fd0d6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebca21c0cb43f547bd3d929a2420e42204cf129a03edfc1365d0989298fd0d6c", kill_on_drop: false }`
[INFO] [stdout] ebca21c0cb43f547bd3d929a2420e42204cf129a03edfc1365d0989298fd0d6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 4e04075a2a5cb2c4ffae8beb495272c66d6975367b8e8235c38a7fbc9aa83fdd
[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" "4e04075a2a5cb2c4ffae8beb495272c66d6975367b8e8235c38a7fbc9aa83fdd", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking image v0.19.0
[INFO] [stderr]     Checking zerodmg-utils v0.1.9 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.56s
[INFO] running `Command { std: "docker" "inspect" "4e04075a2a5cb2c4ffae8beb495272c66d6975367b8e8235c38a7fbc9aa83fdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e04075a2a5cb2c4ffae8beb495272c66d6975367b8e8235c38a7fbc9aa83fdd", kill_on_drop: false }`
[INFO] [stdout] 4e04075a2a5cb2c4ffae8beb495272c66d6975367b8e8235c38a7fbc9aa83fdd