[INFO] fetching crate cargo-why 0.2.0...
[INFO] checking cargo-why-0.2.0 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] extracting crate cargo-why 0.2.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate cargo-why 0.2.0 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-why 0.2.0
[INFO] finished tweaking crates.io crate cargo-why 0.2.0
[INFO] tweaked toml for crates.io crate cargo-why 0.2.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate cargo-why 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "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-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "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] a9e7ffa2e5ec46f390baf2a373c4eb03903b1d52572a17dc33bc988c39fabd6d
[INFO] running `Command { std: "docker" "start" "-a" "a9e7ffa2e5ec46f390baf2a373c4eb03903b1d52572a17dc33bc988c39fabd6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9e7ffa2e5ec46f390baf2a373c4eb03903b1d52572a17dc33bc988c39fabd6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9e7ffa2e5ec46f390baf2a373c4eb03903b1d52572a17dc33bc988c39fabd6d", kill_on_drop: false }`
[INFO] [stdout] a9e7ffa2e5ec46f390baf2a373c4eb03903b1d52572a17dc33bc988c39fabd6d
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "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] 1587a0d2aa5db64e0b7eed1978a37246dcc3b1c2d5e6e1da9b0c481d8505d472
[INFO] running `Command { std: "docker" "start" "-a" "1587a0d2aa5db64e0b7eed1978a37246dcc3b1c2d5e6e1da9b0c481d8505d472", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling cc v1.0.48
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking cargo_metadata v0.9.1
[INFO] [stderr]     Checking cargo-why v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.82s
[INFO] running `Command { std: "docker" "inspect" "1587a0d2aa5db64e0b7eed1978a37246dcc3b1c2d5e6e1da9b0c481d8505d472", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1587a0d2aa5db64e0b7eed1978a37246dcc3b1c2d5e6e1da9b0c481d8505d472", kill_on_drop: false }`
[INFO] [stdout] 1587a0d2aa5db64e0b7eed1978a37246dcc3b1c2d5e6e1da9b0c481d8505d472