[INFO] fetching crate skimmer 0.0.2...
[INFO] checking skimmer-0.0.2 against try#bb9dbf1d07454a99066eabaabd5819851281494b for pr-80920
[INFO] extracting crate skimmer 0.0.2 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate skimmer 0.0.2 on toolchain bb9dbf1d07454a99066eabaabd5819851281494b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate skimmer 0.0.2
[INFO] finished tweaking crates.io crate skimmer 0.0.2
[INFO] tweaked toml for crates.io crate skimmer 0.0.2 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "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] 996f33e0d257c6b7f9b1918ff3bd2881b1ac09f71de0fb7392d674f4230bc363
[INFO] running `Command { std: "docker" "start" "-a" "996f33e0d257c6b7f9b1918ff3bd2881b1ac09f71de0fb7392d674f4230bc363", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "996f33e0d257c6b7f9b1918ff3bd2881b1ac09f71de0fb7392d674f4230bc363", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "996f33e0d257c6b7f9b1918ff3bd2881b1ac09f71de0fb7392d674f4230bc363", kill_on_drop: false }`
[INFO] [stdout] 996f33e0d257c6b7f9b1918ff3bd2881b1ac09f71de0fb7392d674f4230bc363
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "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] 35329cbaa5cb2d4329dbaf3e82e9edd53fa444f63b3efdfcd1fadcb5f1654fc8
[INFO] running `Command { std: "docker" "start" "-a" "35329cbaa5cb2d4329dbaf3e82e9edd53fa444f63b3efdfcd1fadcb5f1654fc8", kill_on_drop: false }`
[INFO] [stderr]     Checking skimmer v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "35329cbaa5cb2d4329dbaf3e82e9edd53fa444f63b3efdfcd1fadcb5f1654fc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35329cbaa5cb2d4329dbaf3e82e9edd53fa444f63b3efdfcd1fadcb5f1654fc8", kill_on_drop: false }`
[INFO] [stdout] 35329cbaa5cb2d4329dbaf3e82e9edd53fa444f63b3efdfcd1fadcb5f1654fc8