[INFO] fetching crate tdiag 0.2.0...
[INFO] checking tdiag-0.2.0 against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] extracting crate tdiag 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate tdiag 0.2.0 on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tdiag 0.2.0
[INFO] finished tweaking crates.io crate tdiag 0.2.0
[INFO] tweaked toml for crates.io crate tdiag 0.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "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" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4660787525ffb2eb9245e69f9d6de4db2142c1f978bad2bd958108e254ce18de
[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" "4660787525ffb2eb9245e69f9d6de4db2142c1f978bad2bd958108e254ce18de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4660787525ffb2eb9245e69f9d6de4db2142c1f978bad2bd958108e254ce18de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4660787525ffb2eb9245e69f9d6de4db2142c1f978bad2bd958108e254ce18de", kill_on_drop: false }`
[INFO] [stdout] 4660787525ffb2eb9245e69f9d6de4db2142c1f978bad2bd958108e254ce18de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a7481857de6ec3dac92e7a1ebd9b99af8fd99f56f151d9a3e521b21a90e7f9e
[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" "6a7481857de6ec3dac92e7a1ebd9b99af8fd99f56f151d9a3e521b21a90e7f9e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]     Checking timely_logging v0.10.0
[INFO] [stderr]    Compiling libc v0.2.85
[INFO] [stderr]     Checking timely_bytes v0.10.0
[INFO] [stderr]     Checking abomonation v0.7.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking timely_sort v0.1.6
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling abomonation_derive v0.4.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling abomonation_derive v0.3.0
[INFO] [stderr]     Checking timely_communication v0.10.0
[INFO] [stderr]     Checking timely v0.10.0
[INFO] [stderr]     Checking differential-dataflow v0.10.0
[INFO] [stderr]     Checking tdiag-connect v0.2.0
[INFO] [stderr]     Checking tdiag v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.54s
[INFO] running `Command { std: "docker" "inspect" "6a7481857de6ec3dac92e7a1ebd9b99af8fd99f56f151d9a3e521b21a90e7f9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a7481857de6ec3dac92e7a1ebd9b99af8fd99f56f151d9a3e521b21a90e7f9e", kill_on_drop: false }`
[INFO] [stdout] 6a7481857de6ec3dac92e7a1ebd9b99af8fd99f56f151d9a3e521b21a90e7f9e