[INFO] fetching crate wlambda 0.6.3...
[INFO] documenting wlambda-0.6.3 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate wlambda 0.6.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate wlambda 0.6.3 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 wlambda 0.6.3
[INFO] finished tweaking crates.io crate wlambda 0.6.3
[INFO] tweaked toml for crates.io crate wlambda 0.6.3 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate wlambda 0.6.3 already has a lockfile, it will not be regenerated
[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] 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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 54045134e96cd056d97817f61352054f6489094c6c761c02d26fb69fe35dcace
[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" "54045134e96cd056d97817f61352054f6489094c6c761c02d26fb69fe35dcace", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "54045134e96cd056d97817f61352054f6489094c6c761c02d26fb69fe35dcace", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54045134e96cd056d97817f61352054f6489094c6c761c02d26fb69fe35dcace", kill_on_drop: false }`
[INFO] [stdout] 54045134e96cd056d97817f61352054f6489094c6c761c02d26fb69fe35dcace
[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" "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] 9ec82f5a9fb3be8396379dd1c666a1652c1193a60a3c0c1af32f5f2d5a5f1cc7
[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" "9ec82f5a9fb3be8396379dd1c666a1652c1193a60a3c0c1af32f5f2d5a5f1cc7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling syn v1.0.34
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]     Checking num-integer v0.1.43
[INFO] [stderr]     Checking rmp v0.8.9
[INFO] [stderr]     Checking dirs-sys-next v0.1.0
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking nix v0.17.0
[INFO] [stderr]     Checking dirs-next v1.0.1
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]     Checking rustyline v6.2.0
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking rmp-serde v0.14.3
[INFO] [stderr]     Checking serde_json v1.0.56
[INFO] [stderr]  Documenting wlambda v0.6.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.78s
[INFO] running `Command { std: "docker" "inspect" "9ec82f5a9fb3be8396379dd1c666a1652c1193a60a3c0c1af32f5f2d5a5f1cc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ec82f5a9fb3be8396379dd1c666a1652c1193a60a3c0c1af32f5f2d5a5f1cc7", kill_on_drop: false }`
[INFO] [stdout] 9ec82f5a9fb3be8396379dd1c666a1652c1193a60a3c0c1af32f5f2d5a5f1cc7