[INFO] cloning repository https://github.com/peitalin/key-exchange-parsing
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/peitalin/key-exchange-parsing" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeitalin%2Fkey-exchange-parsing", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeitalin%2Fkey-exchange-parsing'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b9726a3ae2739c0bd3f30d603251ad7236cfd7d4
[INFO] documenting peitalin/key-exchange-parsing 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%2Fpeitalin%2Fkey-exchange-parsing" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/peitalin/key-exchange-parsing 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/peitalin/key-exchange-parsing
[INFO] finished tweaking git repo https://github.com/peitalin/key-exchange-parsing
[INFO] tweaked toml for git repo https://github.com/peitalin/key-exchange-parsing written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/peitalin/key-exchange-parsing 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rusty-fork v0.2.0
[INFO] [stderr]   Downloaded proptest v0.7.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] d46b65fa45722839398f0146197fae7c28bafe1405ff735b386524548c7ec98c
[INFO] running `Command { std: "docker" "start" "-a" "d46b65fa45722839398f0146197fae7c28bafe1405ff735b386524548c7ec98c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d46b65fa45722839398f0146197fae7c28bafe1405ff735b386524548c7ec98c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d46b65fa45722839398f0146197fae7c28bafe1405ff735b386524548c7ec98c", kill_on_drop: false }`
[INFO] [stdout] d46b65fa45722839398f0146197fae7c28bafe1405ff735b386524548c7ec98c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 1995707a0597597c7a0a445549df95f6329e81ef5a63d84566cd258f32996d32
[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" "1995707a0597597c7a0a445549df95f6329e81ef5a63d84566cd258f32996d32", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.41
[INFO] [stderr]    Compiling num-traits v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.38
[INFO] [stderr]     Checking arrayref v0.3.4
[INFO] [stderr]     Checking remove_dir_all v0.5.1
[INFO] [stderr]     Checking bit-vec v0.5.0
[INFO] [stderr]     Checking regex-syntax v0.4.2
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking digest v0.7.4
[INFO] [stderr]     Checking block-buffer v0.3.3
[INFO] [stderr]     Checking hmac v0.5.0
[INFO] [stderr]     Checking bit-set v0.5.0
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking wait-timeout v0.1.5
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking sha3 v0.7.3
[INFO] [stderr]     Checking sha2 v0.7.1
[INFO] [stderr]     Checking tempfile v3.0.2
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking rusty-fork v0.2.0
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-iter v0.1.37
[INFO] [stderr]     Checking chrono v0.4.3
[INFO] [stderr]     Checking proptest v0.7.1
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]  Documenting diffie-hellman v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `tokio`
[INFO] [stdout]  --> src/_6_network.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate tokio;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `diffie-hellman`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name diffie_hellman src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern chrono=/opt/rustwide/target/debug/deps/libchrono-f9bf08cc14d28483.rmeta --extern digest=/opt/rustwide/target/debug/deps/libdigest-1042fc6aae7303b9.rmeta --extern hmac=/opt/rustwide/target/debug/deps/libhmac-f7de3c34405b5599.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-7fbb21747c2c9002.rmeta --extern proptest=/opt/rustwide/target/debug/deps/libproptest-c7ef7a0a4c53c339.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-5bb363c20bffb895.rmeta --extern sha2=/opt/rustwide/target/debug/deps/libsha2-921bd0efe35a59a9.rmeta --extern sha3=/opt/rustwide/target/debug/deps/libsha3-58c1b7ca07712bfe.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "1995707a0597597c7a0a445549df95f6329e81ef5a63d84566cd258f32996d32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1995707a0597597c7a0a445549df95f6329e81ef5a63d84566cd258f32996d32", kill_on_drop: false }`
[INFO] [stdout] 1995707a0597597c7a0a445549df95f6329e81ef5a63d84566cd258f32996d32