[INFO] fetching crate digest 0.10.0-pre.3...
[INFO] checking digest-0.10.0-pre.3 against try#15a786332e2f0dd343b226ab6bb8ec028a350f73 for pr-81782
[INFO] extracting crate digest 0.10.0-pre.3 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate digest 0.10.0-pre.3 on toolchain 15a786332e2f0dd343b226ab6bb8ec028a350f73
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate digest 0.10.0-pre.3
[INFO] finished tweaking crates.io crate digest 0.10.0-pre.3
[INFO] tweaked toml for crates.io crate digest 0.10.0-pre.3 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "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" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded blobby v0.3.0
[INFO] [stderr]   Downloaded block-buffer v0.10.0-pre.2
[INFO] [stderr]   Downloaded block-padding v0.3.0-pre
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 09f2aa3e358394a34b42a9251a19aee9cf8ebd49e29bef60dc640c20ed1cb6d4
[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" "09f2aa3e358394a34b42a9251a19aee9cf8ebd49e29bef60dc640c20ed1cb6d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09f2aa3e358394a34b42a9251a19aee9cf8ebd49e29bef60dc640c20ed1cb6d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09f2aa3e358394a34b42a9251a19aee9cf8ebd49e29bef60dc640c20ed1cb6d4", kill_on_drop: false }`
[INFO] [stdout] 09f2aa3e358394a34b42a9251a19aee9cf8ebd49e29bef60dc640c20ed1cb6d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c836106050a29b43f2222e3e37d6e0eea2516ab08e266e02fa845ac600fe62cb
[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" "c836106050a29b43f2222e3e37d6e0eea2516ab08e266e02fa845ac600fe62cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking digest v0.10.0-pre.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.03s
[INFO] running `Command { std: "docker" "inspect" "c836106050a29b43f2222e3e37d6e0eea2516ab08e266e02fa845ac600fe62cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c836106050a29b43f2222e3e37d6e0eea2516ab08e266e02fa845ac600fe62cb", kill_on_drop: false }`
[INFO] [stdout] c836106050a29b43f2222e3e37d6e0eea2516ab08e266e02fa845ac600fe62cb