[INFO] fetching crate imag-edit 0.10.1...
[INFO] checking imag-edit-0.10.1 against beta for pr-78714
[INFO] extracting crate imag-edit 0.10.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate imag-edit 0.10.1 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 imag-edit 0.10.1
[INFO] finished tweaking crates.io crate imag-edit 0.10.1
[INFO] tweaked toml for crates.io crate imag-edit 0.10.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate imag-edit 0.10.1 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] 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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 37e2830c72db13fa260ce1f17464bae564fadbb55853bf1831f42a3034ea9056
[INFO] running `Command { std: "docker" "start" "-a" "37e2830c72db13fa260ce1f17464bae564fadbb55853bf1831f42a3034ea9056", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37e2830c72db13fa260ce1f17464bae564fadbb55853bf1831f42a3034ea9056", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37e2830c72db13fa260ce1f17464bae564fadbb55853bf1831f42a3034ea9056", kill_on_drop: false }`
[INFO] [stdout] 37e2830c72db13fa260ce1f17464bae564fadbb55853bf1831f42a3034ea9056
[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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e20d8cc4bb79529c0722de08ef6e40160e0da6f4be2a2def09ae65e1b459abae
[INFO] running `Command { std: "docker" "start" "-a" "e20d8cc4bb79529c0722de08ef6e40160e0da6f4be2a2def09ae65e1b459abae", kill_on_drop: false }`
[INFO] [stderr]     Checking version v3.0.0
[INFO] [stderr]     Checking libimagentryedit v0.10.1
[INFO] [stderr]     Checking imag-edit v0.10.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.92s
[INFO] running `Command { std: "docker" "inspect" "e20d8cc4bb79529c0722de08ef6e40160e0da6f4be2a2def09ae65e1b459abae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e20d8cc4bb79529c0722de08ef6e40160e0da6f4be2a2def09ae65e1b459abae", kill_on_drop: false }`
[INFO] [stdout] e20d8cc4bb79529c0722de08ef6e40160e0da6f4be2a2def09ae65e1b459abae