[INFO] cloning repository https://github.com/mackwic/fs-synchronizer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mackwic/fs-synchronizer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmackwic%2Ffs-synchronizer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmackwic%2Ffs-synchronizer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 793c79bea8b4ad18467dd74ce1290eeacb22b5f1
[INFO] documenting mackwic/fs-synchronizer 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%2Fmackwic%2Ffs-synchronizer" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mackwic/fs-synchronizer 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/mackwic/fs-synchronizer
[INFO] finished tweaking git repo https://github.com/mackwic/fs-synchronizer
[INFO] tweaked toml for git repo https://github.com/mackwic/fs-synchronizer written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/mackwic/fs-synchronizer 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] error: the lock file /workspace/builds/worker-9/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded rmp-serde v0.14.4
[INFO] [stderr]   Downloaded r2d2_redis v0.13.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 49613fc6d89c1fbe0fc6a07615a40e8a816745d29c820f13bf4fb3f8ee3c19fd
[INFO] running `Command { std: "docker" "start" "-a" "49613fc6d89c1fbe0fc6a07615a40e8a816745d29c820f13bf4fb3f8ee3c19fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49613fc6d89c1fbe0fc6a07615a40e8a816745d29c820f13bf4fb3f8ee3c19fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49613fc6d89c1fbe0fc6a07615a40e8a816745d29c820f13bf4fb3f8ee3c19fd", kill_on_drop: false }`
[INFO] [stdout] 49613fc6d89c1fbe0fc6a07615a40e8a816745d29c820f13bf4fb3f8ee3c19fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 5a30757f8f16308944bd5ae9f58f4b32b7f149b34d779292bde536ee74187b53
[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" "5a30757f8f16308944bd5ae9f58f4b32b7f149b34d779292bde536ee74187b53", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]     Checking instant v0.1.6
[INFO] [stderr]     Checking ascii v0.9.3
[INFO] [stderr]     Checking either v1.6.0
[INFO] [stderr]    Compiling snap v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.20
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking filetime v0.2.12
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking rmp v0.8.9
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking fern v0.6.0
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking combine v3.8.1
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking scheduled-thread-pool v0.2.5
[INFO] [stderr]     Checking crossbeam-channel v0.4.3
[INFO] [stderr]     Checking r2d2 v0.8.9
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking notify v4.0.15
[INFO] [stderr]     Checking tokio-util v0.2.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling structopt-derive v0.4.10
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking structopt v0.3.17
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking redis v0.15.1
[INFO] [stderr]     Checking r2d2_redis v0.13.0
[INFO] [stderr]     Checking rmp-serde v0.14.4
[INFO] [stderr]  Documenting fs-synchronizer v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 06s
[INFO] running `Command { std: "docker" "inspect" "5a30757f8f16308944bd5ae9f58f4b32b7f149b34d779292bde536ee74187b53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a30757f8f16308944bd5ae9f58f4b32b7f149b34d779292bde536ee74187b53", kill_on_drop: false }`
[INFO] [stdout] 5a30757f8f16308944bd5ae9f58f4b32b7f149b34d779292bde536ee74187b53