[INFO] cloning repository https://github.com/emallson/max-cover-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emallson/max-cover-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femallson%2Fmax-cover-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femallson%2Fmax-cover-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e41bc5578b5abc677bfda9bb8176f9be6fd96801
[INFO] documenting emallson/max-cover-rs against 1.75.0 for beta-1.76-rustdoc-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femallson%2Fmax-cover-rs" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/emallson/max-cover-rs on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/emallson/max-cover-rs
[INFO] finished tweaking git repo https://github.com/emallson/max-cover-rs
[INFO] tweaked toml for git repo https://github.com/emallson/max-cover-rs written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/emallson/max-cover-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Updating git repository `https://github.com/emallson/rplex.git`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_codegen_internals v0.12.1
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c11ef1aceb77dc7aa547c719d9440d1db05005eca0d0fd41b326dba97e12542
[INFO] running `Command { std: "docker" "start" "-a" "3c11ef1aceb77dc7aa547c719d9440d1db05005eca0d0fd41b326dba97e12542", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c11ef1aceb77dc7aa547c719d9440d1db05005eca0d0fd41b326dba97e12542", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c11ef1aceb77dc7aa547c719d9440d1db05005eca0d0fd41b326dba97e12542", kill_on_drop: false }`
[INFO] [stdout] 3c11ef1aceb77dc7aa547c719d9440d1db05005eca0d0fd41b326dba97e12542
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTFLAGS=--cap-lints=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7cb503e24fdf9721a910fc4398d6f71f595759520c90d0497cc49e4561a69089
[INFO] running `Command { std: "docker" "start" "-a" "7cb503e24fdf9721a910fc4398d6f71f595759520c90d0497cc49e4561a69089", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.20
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling quote v0.3.12
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.4.0
[INFO] [stderr]     Checking lazy_static v0.2.2
[INFO] [stderr]     Checking dtoa v0.4.0
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking serde v0.9.5
[INFO] [stderr]     Checking num-traits v0.1.36
[INFO] [stderr]     Checking itoa v0.3.0
[INFO] [stderr]     Checking rustc-serialize v0.3.22
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]    Compiling syn v0.11.4
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking thread-id v3.0.0
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking thread_local v0.3.2
[INFO] [stderr]     Checking aho-corasick v0.6.1
[INFO] [stderr]    Compiling rplex v0.1.0 (https://github.com/emallson/rplex.git#c4d88bcc)
[INFO] [stderr]     Checking regex v0.2.1
[INFO] [stderr]    Compiling serde_codegen_internals v0.12.1
[INFO] [stderr]     Checking docopt v0.7.0
[INFO] [stderr]    Compiling serde_derive v0.9.5
[INFO] [stderr]     Checking serde_json v0.9.3
[INFO] [stderr]  Documenting cover v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/main.rs:131:45
[INFO] [stdout]     |
[INFO] [stdout] 131 |     prob.add_constraint(con!("cardinality": (k as f64) >= sum set_vars.iter())).unwrap();
[INFO] [stdout]     |                                             ^        ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 131 -     prob.add_constraint(con!("cardinality": (k as f64) >= sum set_vars.iter())).unwrap();
[INFO] [stdout] 131 +     prob.add_constraint(con!("cardinality": k as f64 >= sum set_vars.iter())).unwrap();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.23s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.22, syn v0.11.4
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] [stderr]    Generated /opt/rustwide/target/doc/cover/index.html
[INFO] running `Command { std: "docker" "inspect" "7cb503e24fdf9721a910fc4398d6f71f595759520c90d0497cc49e4561a69089", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cb503e24fdf9721a910fc4398d6f71f595759520c90d0497cc49e4561a69089", kill_on_drop: false }`
[INFO] [stdout] 7cb503e24fdf9721a910fc4398d6f71f595759520c90d0497cc49e4561a69089
