[INFO] fetching crate elephantry 1.4.0...
[INFO] checking elephantry-1.4.0 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate elephantry 1.4.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate elephantry 1.4.0 on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate elephantry 1.4.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate elephantry 1.4.0
[INFO] tweaked toml for crates.io crate elephantry 1.4.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate elephantry 1.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 645ef2d229324244aba1b4ab66c88e2554a8ebb55d8e3aaf1456b0564af6ebf0
[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" "645ef2d229324244aba1b4ab66c88e2554a8ebb55d8e3aaf1456b0564af6ebf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "645ef2d229324244aba1b4ab66c88e2554a8ebb55d8e3aaf1456b0564af6ebf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "645ef2d229324244aba1b4ab66c88e2554a8ebb55d8e3aaf1456b0564af6ebf0", kill_on_drop: false }`
[INFO] [stdout] 645ef2d229324244aba1b4ab66c88e2554a8ebb55d8e3aaf1456b0564af6ebf0
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 211739bb08a36318070caed982b788947dcdbe2dca618d024cacc311ae71d228
[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" "211739bb08a36318070caed982b788947dcdbe2dca618d024cacc311ae71d228", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling log v0.4.13
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking futures-core v0.3.12
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling pq-sys v0.4.6
[INFO] [stderr]    Compiling serde v1.0.120
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking tuple_len v1.0.0
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking thread_local v1.1.0
[INFO] [stderr]     Checking futures-lite v1.11.3
[INFO] [stderr]     Checking async-channel v1.5.1
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking async-executor v1.4.0
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]     Checking polling v2.0.2
[INFO] [stderr]     Checking nb-connect v1.0.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking libpq v1.0.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking async-io v1.3.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]     Checking async-global-executor v2.0.2
[INFO] [stderr]     Checking serde_json v1.0.61
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]    Compiling elephantry-derive v1.3.2
[INFO] [stderr]     Checking async-std v1.9.0
[INFO] [stderr]     Checking elephantry v1.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.90s
[INFO] running `Command { std: "docker" "inspect" "211739bb08a36318070caed982b788947dcdbe2dca618d024cacc311ae71d228", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "211739bb08a36318070caed982b788947dcdbe2dca618d024cacc311ae71d228", kill_on_drop: false }`
[INFO] [stdout] 211739bb08a36318070caed982b788947dcdbe2dca618d024cacc311ae71d228