[INFO] fetching crate vg 0.0.0-obsolete...
[INFO] checking vg-0.0.0-obsolete against master#7f5a42b073dc2bee2aa625052eb066ee07072048 for pr-78991
[INFO] extracting crate vg 0.0.0-obsolete into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate vg 0.0.0-obsolete on toolchain 7f5a42b073dc2bee2aa625052eb066ee07072048
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate vg 0.0.0-obsolete
[INFO] finished tweaking crates.io crate vg 0.0.0-obsolete
[INFO] tweaked toml for crates.io crate vg 0.0.0-obsolete written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df1cb7e0674dcbac7cd3b0a2d3abf56e8964b49710324c9a3d4601e02e05eff1
[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" "df1cb7e0674dcbac7cd3b0a2d3abf56e8964b49710324c9a3d4601e02e05eff1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df1cb7e0674dcbac7cd3b0a2d3abf56e8964b49710324c9a3d4601e02e05eff1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df1cb7e0674dcbac7cd3b0a2d3abf56e8964b49710324c9a3d4601e02e05eff1", kill_on_drop: false }`
[INFO] [stdout] df1cb7e0674dcbac7cd3b0a2d3abf56e8964b49710324c9a3d4601e02e05eff1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "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] 49eabf901e989e7748a6325f5a12ce72b075dd268051e8bce91e3a1eda4f7453
[INFO] running `Command { std: "docker" "start" "-a" "49eabf901e989e7748a6325f5a12ce72b075dd268051e8bce91e3a1eda4f7453", kill_on_drop: false }`
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking png v0.15.3
[INFO] [stderr]     Checking vg v0.0.0-obsolete (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.26s
[INFO] running `Command { std: "docker" "inspect" "49eabf901e989e7748a6325f5a12ce72b075dd268051e8bce91e3a1eda4f7453", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49eabf901e989e7748a6325f5a12ce72b075dd268051e8bce91e3a1eda4f7453", kill_on_drop: false }`
[INFO] [stdout] 49eabf901e989e7748a6325f5a12ce72b075dd268051e8bce91e3a1eda4f7453