[INFO] fetching crate async-log 2.0.0...
[INFO] checking async-log-2.0.0 against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] extracting crate async-log 2.0.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate async-log 2.0.0 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 async-log 2.0.0
[INFO] finished tweaking crates.io crate async-log 2.0.0
[INFO] tweaked toml for crates.io crate async-log 2.0.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate async-log 2.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 4e998746fa2a3640535defd87f18a9fef91eeccac470e4b8dfc52a3aa826db9e
[INFO] running `Command { std: "docker" "start" "-a" "4e998746fa2a3640535defd87f18a9fef91eeccac470e4b8dfc52a3aa826db9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e998746fa2a3640535defd87f18a9fef91eeccac470e4b8dfc52a3aa826db9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e998746fa2a3640535defd87f18a9fef91eeccac470e4b8dfc52a3aa826db9e", kill_on_drop: false }`
[INFO] [stdout] 4e998746fa2a3640535defd87f18a9fef91eeccac470e4b8dfc52a3aa826db9e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stdout] 3a7590b2db4d948717835b7cd1052187f4f15ce6b09bd3970b006c6225bf5f37
[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" "3a7590b2db4d948717835b7cd1052187f4f15ce6b09bd3970b006c6225bf5f37", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]     Checking rustc-demangle v0.1.15
[INFO] [stderr]    Compiling serde v1.0.98
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling regex v1.1.7
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]     Checking utf8-ranges v1.0.3
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking regex-syntax v0.6.7
[INFO] [stderr]     Checking lock_api v0.3.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking aho-corasick v0.7.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.29
[INFO] [stderr]     Checking clicolors-control v1.0.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking termios v0.3.1
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking backtrace v0.3.34
[INFO] [stderr]     Checking console v0.7.7
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]    Compiling async-log-attributes v1.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.98
[INFO] [stderr]     Checking async-log v1.1.0
[INFO] [stderr]     Checking async-log v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking femme v1.2.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.69s
[INFO] running `Command { std: "docker" "inspect" "3a7590b2db4d948717835b7cd1052187f4f15ce6b09bd3970b006c6225bf5f37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a7590b2db4d948717835b7cd1052187f4f15ce6b09bd3970b006c6225bf5f37", kill_on_drop: false }`
[INFO] [stdout] 3a7590b2db4d948717835b7cd1052187f4f15ce6b09bd3970b006c6225bf5f37