[INFO] fetching crate witnet-bn 0.4.5...
[INFO] documenting witnet-bn-0.4.5 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate witnet-bn 0.4.5 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate witnet-bn 0.4.5 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 witnet-bn 0.4.5
[INFO] finished tweaking crates.io crate witnet-bn 0.4.5
[INFO] tweaked toml for crates.io crate witnet-bn 0.4.5 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate witnet-bn 0.4.5 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stdout] ac9d404e7e7a0d38e5fe71c3ed2c4676a39621db7f6e97f2260ad372a291726e
[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" "ac9d404e7e7a0d38e5fe71c3ed2c4676a39621db7f6e97f2260ad372a291726e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac9d404e7e7a0d38e5fe71c3ed2c4676a39621db7f6e97f2260ad372a291726e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac9d404e7e7a0d38e5fe71c3ed2c4676a39621db7f6e97f2260ad372a291726e", kill_on_drop: false }`
[INFO] [stdout] ac9d404e7e7a0d38e5fe71c3ed2c4676a39621db7f6e97f2260ad372a291726e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 659b8709b41080d9c06036213fcd7bac9985df2cf4fb1561bc2a0692afa69c8a
[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" "659b8709b41080d9c06036213fcd7bac9985df2cf4fb1561bc2a0692afa69c8a", kill_on_drop: false }`
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]  Documenting witnet-bn v0.4.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant `i` should have an upper case name
[INFO] [stdout]   --> src/arith.rs:53:17
[INFO] [stdout]    |
[INFO] [stdout] 53 |             for i in 0..2 {
[INFO] [stdout]    |                 ^ help: convert the identifier to upper case (notice the capitalization): `I`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `i` should have an upper case name
[INFO] [stdout]   --> src/arith.rs:53:17
[INFO] [stdout]    |
[INFO] [stdout] 53 |             for i in 0..2 {
[INFO] [stdout]    |                 ^ help: convert the identifier to upper case (notice the capitalization): `I`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `i` should have an upper case name
[INFO] [stdout]   --> src/arith.rs:62:17
[INFO] [stdout]    |
[INFO] [stdout] 62 |             for i in 0..2 {
[INFO] [stdout]    |                 ^ help: convert the identifier to upper case (notice the capitalization): `I`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `i` should have an upper case name
[INFO] [stdout]   --> src/arith.rs:68:17
[INFO] [stdout]    |
[INFO] [stdout] 68 |             for i in 0..2 {
[INFO] [stdout]    |                 ^ help: convert the identifier to upper case (notice the capitalization): `I`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `i` should have an upper case name
[INFO] [stdout]    --> src/arith.rs:561:13
[INFO] [stdout]     |
[INFO] [stdout] 561 |         for i in 0..2 {
[INFO] [stdout]     |             ^ help: convert the identifier to upper case (notice the capitalization): `I`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `i` should have an upper case name
[INFO] [stdout]    --> src/arith.rs:567:13
[INFO] [stdout]     |
[INFO] [stdout] 567 |         for i in 0..2 {
[INFO] [stdout]     |             ^ help: convert the identifier to upper case (notice the capitalization): `I`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `i` should have an upper case name
[INFO] [stdout]    --> src/arith.rs:593:13
[INFO] [stdout]     |
[INFO] [stdout] 593 |         for i in 0..2 {
[INFO] [stdout]     |             ^ help: convert the identifier to upper case (notice the capitalization): `I`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `i` should have an upper case name
[INFO] [stdout]    --> src/arith.rs:599:13
[INFO] [stdout]     |
[INFO] [stdout] 599 |         for i in 0..2 {
[INFO] [stdout]     |             ^ help: convert the identifier to upper case (notice the capitalization): `I`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.80s
[INFO] running `Command { std: "docker" "inspect" "659b8709b41080d9c06036213fcd7bac9985df2cf4fb1561bc2a0692afa69c8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "659b8709b41080d9c06036213fcd7bac9985df2cf4fb1561bc2a0692afa69c8a", kill_on_drop: false }`
[INFO] [stdout] 659b8709b41080d9c06036213fcd7bac9985df2cf4fb1561bc2a0692afa69c8a