[INFO] fetching crate perf_stats 0.1.4...
[INFO] checking perf_stats-0.1.4 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate perf_stats 0.1.4 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate perf_stats 0.1.4 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate perf_stats 0.1.4
[INFO] finished tweaking crates.io crate perf_stats 0.1.4
[INFO] tweaked toml for crates.io crate perf_stats 0.1.4 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "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" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7d8591f41c664745439957ec9203984d2104a155e5a6c4139f2725b33425f7d9
[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" "7d8591f41c664745439957ec9203984d2104a155e5a6c4139f2725b33425f7d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d8591f41c664745439957ec9203984d2104a155e5a6c4139f2725b33425f7d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d8591f41c664745439957ec9203984d2104a155e5a6c4139f2725b33425f7d9", kill_on_drop: false }`
[INFO] [stdout] 7d8591f41c664745439957ec9203984d2104a155e5a6c4139f2725b33425f7d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "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] 85b2a49617cff5538ea7ae1081fee8e2adbc3291189a1deb7a3ab9634ae52b48
[INFO] running `Command { std: "docker" "start" "-a" "85b2a49617cff5538ea7ae1081fee8e2adbc3291189a1deb7a3ab9634ae52b48", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking superslice v1.0.0
[INFO] [stderr]     Checking permutation v0.2.5
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking crc32fast v1.2.1
[INFO] [stderr]     Checking vector_utils v0.1.3
[INFO] [stderr]     Checking string_utils v0.1.2
[INFO] [stderr]     Checking flate2 v1.0.22
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling lz4-sys v1.9.2
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking lz4 v1.23.2
[INFO] [stderr]     Checking io_utils v0.2.10
[INFO] [stderr]     Checking perf_stats v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.77s
[INFO] running `Command { std: "docker" "inspect" "85b2a49617cff5538ea7ae1081fee8e2adbc3291189a1deb7a3ab9634ae52b48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85b2a49617cff5538ea7ae1081fee8e2adbc3291189a1deb7a3ab9634ae52b48", kill_on_drop: false }`
[INFO] [stdout] 85b2a49617cff5538ea7ae1081fee8e2adbc3291189a1deb7a3ab9634ae52b48