[INFO] cloning repository https://github.com/purposed/tidy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/purposed/tidy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpurposed%2Ftidy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpurposed%2Ftidy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 07370bd2a6819e7e9e36ad9a00b75d1ff87cd5cc
[INFO] documenting purposed/tidy against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpurposed%2Ftidy" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/purposed/tidy 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 git repo https://github.com/purposed/tidy
[INFO] finished tweaking git repo https://github.com/purposed/tidy
[INFO] tweaked toml for git repo https://github.com/purposed/tidy written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/purposed/tidy 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]  Downloading crates ...
[INFO] [stderr]   Downloaded logos v0.9.7
[INFO] [stderr]   Downloaded parse_duration v2.1.0
[INFO] [stderr]   Downloaded logos-derive v0.9.7
[INFO] [stderr]   Downloaded rood v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0be69506f0a2f7cf6d6ffc960db850c86473bf0de1176876a674bf036b4caeb4
[INFO] running `Command { std: "docker" "start" "-a" "0be69506f0a2f7cf6d6ffc960db850c86473bf0de1176876a674bf036b4caeb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0be69506f0a2f7cf6d6ffc960db850c86473bf0de1176876a674bf036b4caeb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0be69506f0a2f7cf6d6ffc960db850c86473bf0de1176876a674bf036b4caeb4", kill_on_drop: false }`
[INFO] [stdout] 0be69506f0a2f7cf6d6ffc960db850c86473bf0de1176876a674bf036b4caeb4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] fa421e2b3f354d7c0543bc8cb7777b6416d75f4f4d4376c1a18fb4bf5e7cb1cf
[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" "fa421e2b3f354d7c0543bc8cb7777b6416d75f4f4d4376c1a18fb4bf5e7cb1cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]     Checking regex-syntax v0.6.14
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling num-rational v0.2.3
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]     Checking aho-corasick v0.7.8
[INFO] [stderr]     Checking num-integer v0.1.42
[INFO] [stderr]     Checking num-complex v0.2.4
[INFO] [stderr]     Checking num-bigint v0.2.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking nix v0.17.0
[INFO] [stderr]     Checking colored v1.9.2
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking shellexpand v2.0.0
[INFO] [stderr]     Checking rood v0.1.1
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking parse_duration v2.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]     Checking ctrlc v3.1.6
[INFO] [stderr]    Compiling logos-derive v0.9.7
[INFO] [stderr]     Checking serde v1.0.115
[INFO] [stderr]     Checking logos v0.9.7
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking tidy v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting tidy v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 17s
[INFO] running `Command { std: "docker" "inspect" "fa421e2b3f354d7c0543bc8cb7777b6416d75f4f4d4376c1a18fb4bf5e7cb1cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa421e2b3f354d7c0543bc8cb7777b6416d75f4f4d4376c1a18fb4bf5e7cb1cf", kill_on_drop: false }`
[INFO] [stdout] fa421e2b3f354d7c0543bc8cb7777b6416d75f4f4d4376c1a18fb4bf5e7cb1cf