[INFO] fetching crate perf_stats 0.1.2...
[INFO] checking perf_stats-0.1.2 against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] extracting crate perf_stats 0.1.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate perf_stats 0.1.2 on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate perf_stats 0.1.2
[INFO] finished tweaking crates.io crate perf_stats 0.1.2
[INFO] tweaked toml for crates.io crate perf_stats 0.1.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "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" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "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-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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "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] e4a367b6ce7ff331765ee6bcd1f588177554cf67d3f043abaabccfa8fabaf6d5
[INFO] running `Command { std: "docker" "start" "-a" "e4a367b6ce7ff331765ee6bcd1f588177554cf67d3f043abaabccfa8fabaf6d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4a367b6ce7ff331765ee6bcd1f588177554cf67d3f043abaabccfa8fabaf6d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4a367b6ce7ff331765ee6bcd1f588177554cf67d3f043abaabccfa8fabaf6d5", kill_on_drop: false }`
[INFO] [stdout] e4a367b6ce7ff331765ee6bcd1f588177554cf67d3f043abaabccfa8fabaf6d5
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "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] 929d812e78b4af09b31916005acbf00a19bdb879ec56ee5fc6e1e1df11b29a45
[INFO] running `Command { std: "docker" "start" "-a" "929d812e78b4af09b31916005acbf00a19bdb879ec56ee5fc6e1e1df11b29a45", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.59
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking permutation v0.2.5
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking superslice v1.0.0
[INFO] [stderr]     Checking serde v1.0.115
[INFO] [stderr]     Checking byteorder v1.3.4
[INFO] [stderr]     Checking miniz_oxide v0.4.1
[INFO] [stderr]     Checking vector_utils v0.1.3
[INFO] [stderr]     Checking string_utils v0.1.1
[INFO] [stderr]     Checking flate2 v1.0.17
[INFO] [stderr]    Compiling lz4-sys v1.9.2
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking lz4 v1.23.2
[INFO] [stderr]     Checking io_utils v0.2.6
[INFO] [stderr]     Checking perf_stats v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.20s
[INFO] running `Command { std: "docker" "inspect" "929d812e78b4af09b31916005acbf00a19bdb879ec56ee5fc6e1e1df11b29a45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "929d812e78b4af09b31916005acbf00a19bdb879ec56ee5fc6e1e1df11b29a45", kill_on_drop: false }`
[INFO] [stdout] 929d812e78b4af09b31916005acbf00a19bdb879ec56ee5fc6e1e1df11b29a45