[INFO] fetching crate sapling-crypto_ce 0.1.3...
[INFO] documenting sapling-crypto_ce-0.1.3 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate sapling-crypto_ce 0.1.3 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate sapling-crypto_ce 0.1.3 on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sapling-crypto_ce 0.1.3
[INFO] finished tweaking crates.io crate sapling-crypto_ce 0.1.3
[INFO] tweaked toml for crates.io crate sapling-crypto_ce 0.1.3 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate sapling-crypto_ce 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "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] cc6509ffb73a30906b79cda778dfd115cdaec875d5ff4a0f674aea9c4ada9fba
[INFO] running `Command { std: "docker" "start" "-a" "cc6509ffb73a30906b79cda778dfd115cdaec875d5ff4a0f674aea9c4ada9fba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc6509ffb73a30906b79cda778dfd115cdaec875d5ff4a0f674aea9c4ada9fba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc6509ffb73a30906b79cda778dfd115cdaec875d5ff4a0f674aea9c4ada9fba", kill_on_drop: false }`
[INFO] [stdout] cc6509ffb73a30906b79cda778dfd115cdaec875d5ff4a0f674aea9c4ada9fba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eadb344ece9b975201ec19cad73fc559ef567aab4961c2635a66e02e4afaf9a1
[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" "eadb344ece9b975201ec19cad73fc559ef567aab4961c2635a66e02e4afaf9a1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling syn v1.0.21
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]     Checking bit-vec v0.6.2
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking blake2-rfc_bellman_edition v0.0.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking sha2 v0.8.1
[INFO] [stderr]     Checking tiny-keccak v2.0.2
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling quote v1.0.5
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]    Compiling pin-project-internal v0.4.16
[INFO] [stderr]    Compiling ff_derive_ce v0.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]     Checking pin-project v0.4.16
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking ff_ce v0.10.2
[INFO] [stderr]     Checking pairing_ce v0.21.0
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking bellman_ce v0.3.4
[INFO] [stderr]  Documenting sapling-crypto_ce v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 59.60s
[INFO] running `Command { std: "docker" "inspect" "eadb344ece9b975201ec19cad73fc559ef567aab4961c2635a66e02e4afaf9a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eadb344ece9b975201ec19cad73fc559ef567aab4961c2635a66e02e4afaf9a1", kill_on_drop: false }`
[INFO] [stdout] eadb344ece9b975201ec19cad73fc559ef567aab4961c2635a66e02e4afaf9a1