[INFO] fetching crate dbmigrate 0.3.5...
[INFO] documenting dbmigrate-0.3.5 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate dbmigrate 0.3.5 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate dbmigrate 0.3.5 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dbmigrate 0.3.5
[INFO] finished tweaking crates.io crate dbmigrate 0.3.5
[INFO] tweaked toml for crates.io crate dbmigrate 0.3.5 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dbmigrate-lib v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 409b2c83b09661f96578f9f61590e3379dda3188d1a6bea9d72c25d0d2a0b8e8
[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" "409b2c83b09661f96578f9f61590e3379dda3188d1a6bea9d72c25d0d2a0b8e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "409b2c83b09661f96578f9f61590e3379dda3188d1a6bea9d72c25d0d2a0b8e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "409b2c83b09661f96578f9f61590e3379dda3188d1a6bea9d72c25d0d2a0b8e8", kill_on_drop: false }`
[INFO] [stdout] 409b2c83b09661f96578f9f61590e3379dda3188d1a6bea9d72c25d0d2a0b8e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a3da9637e3ace457e29fa4de8f102df70074d1593d2a5291261f0a3ef6cce0b
[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" "2a3da9637e3ace457e29fa4de8f102df70074d1593d2a5291261f0a3ef6cce0b", kill_on_drop: false }`
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking safemem v0.2.0
[INFO] [stderr]     Checking md5 v0.3.8
[INFO] [stderr]     Checking fallible-iterator v0.1.6
[INFO] [stderr]     Checking hex v0.2.0
[INFO] [stderr]     Checking sha1 v0.2.0
[INFO] [stderr]     Checking uuid v0.5.1
[INFO] [stderr]    Compiling libsqlite3-sys v0.9.3
[INFO] [stderr]     Checking block-buffer v0.3.3
[INFO] [stderr]     Checking stringprep v0.1.2
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking nix v0.9.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]     Checking generic-array v0.9.0
[INFO] [stderr]     Checking openssl-sys v0.9.58
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]    Compiling derive-error-chain v0.10.1
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]     Checking base64 v0.6.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking num-integer v0.1.43
[INFO] [stderr]     Checking atoi v0.2.4
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking digest v0.7.6
[INFO] [stderr]     Checking crypto-mac v0.5.2
[INFO] [stderr]     Checking hmac v0.5.0
[INFO] [stderr]     Checking sha2 v0.7.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking postgres-protocol v0.3.2
[INFO] [stderr]     Checking rusqlite v0.14.0
[INFO] [stderr]     Checking openssl v0.10.30
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking postgres-shared v0.4.2
[INFO] [stderr]     Checking postgres v0.15.2
[INFO] [stderr]     Checking dotenv v0.10.1
[INFO] [stderr]     Checking twox-hash v1.5.0
[INFO] [stderr]     Checking mysql_common v0.5.0
[INFO] [stderr]     Checking native-tls v0.2.4
[INFO] [stderr]     Checking postgres-native-tls v0.1.0
[INFO] [stderr]     Checking mysql v12.3.1
[INFO] [stderr]     Checking dbmigrate-lib v0.1.4
[INFO] [stderr]  Documenting dbmigrate v0.3.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.12s
[INFO] running `Command { std: "docker" "inspect" "2a3da9637e3ace457e29fa4de8f102df70074d1593d2a5291261f0a3ef6cce0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a3da9637e3ace457e29fa4de8f102df70074d1593d2a5291261f0a3ef6cce0b", kill_on_drop: false }`
[INFO] [stdout] 2a3da9637e3ace457e29fa4de8f102df70074d1593d2a5291261f0a3ef6cce0b