[INFO] crate rustlearn 0.5.0 is already in cache
[INFO] documenting rustlearn-0.5.0 against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate rustlearn 0.5.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate rustlearn 0.5.0 on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustlearn 0.5.0
[INFO] finished tweaking crates.io crate rustlearn 0.5.0
[INFO] tweaked toml for crates.io crate rustlearn 0.5.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a7bcb1d803e5e96670bc287bb795e68c9157bcfda9c35f21c1f0287c68f09935
[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" "a7bcb1d803e5e96670bc287bb795e68c9157bcfda9c35f21c1f0287c68f09935", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7bcb1d803e5e96670bc287bb795e68c9157bcfda9c35f21c1f0287c68f09935", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7bcb1d803e5e96670bc287bb795e68c9157bcfda9c35f21c1f0287c68f09935", kill_on_drop: false }`
[INFO] [stdout] a7bcb1d803e5e96670bc287bb795e68c9157bcfda9c35f21c1f0287c68f09935
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4797c864b5c818fcfa70fc72013dc7a0c6a7ebf643aa2b9cffa56219a0c8bf27
[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" "4797c864b5c818fcfa70fc72013dc7a0c6a7ebf643aa2b9cffa56219a0c8bf27", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling rustlearn v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'gcc::Config': gcc::Config has been renamed to gcc::Build
[INFO] [stdout]  --> build.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     gcc::Config::new()
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'gcc::Build::new': crate has been renamed to `cc`, the `gcc` name is not maintained
[INFO] [stdout]  --> build.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     gcc::Config::new()
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: dependencies/libsvm/svm.cpp: In function 'void print_string_stdout(const char*)':
[INFO] [stderr] warning: dependencies/libsvm/svm.cpp:41:45: warning: unused parameter 's' [-Wunused-parameter]
[INFO] [stderr] warning:    41 | static void print_string_stdout(const char *s)
[INFO] [stderr] warning:       |                                 ~~~~~~~~~~~~^
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]  Documenting rustlearn v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `C_SVC` should have an upper camel case name
[INFO] [stdout]   --> src/svm/libsvm/ffi.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     C_SVC,
[INFO] [stdout]    |     ^^^^^ help: convert the identifier to upper camel case: `CSvc`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `NU_SVC` should have an upper camel case name
[INFO] [stdout]   --> src/svm/libsvm/ffi.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     NU_SVC,
[INFO] [stdout]    |     ^^^^^^ help: convert the identifier to upper camel case: `NuSvc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `ONE_CLASS` should have an upper camel case name
[INFO] [stdout]   --> src/svm/libsvm/ffi.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     ONE_CLASS,
[INFO] [stdout]    |     ^^^^^^^^^ help: convert the identifier to upper camel case: `OneClass`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `EPSILON_SVR` should have an upper camel case name
[INFO] [stdout]   --> src/svm/libsvm/ffi.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     EPSILON_SVR,
[INFO] [stdout]    |     ^^^^^^^^^^^ help: convert the identifier to upper camel case: `EpsilonSvr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `NU_SVR` should have an upper camel case name
[INFO] [stdout]   --> src/svm/libsvm/ffi.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     NU_SVR,
[INFO] [stdout]    |     ^^^^^^ help: convert the identifier to upper camel case: `NuSvr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.01s
[INFO] running `Command { std: "docker" "inspect" "4797c864b5c818fcfa70fc72013dc7a0c6a7ebf643aa2b9cffa56219a0c8bf27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4797c864b5c818fcfa70fc72013dc7a0c6a7ebf643aa2b9cffa56219a0c8bf27", kill_on_drop: false }`
[INFO] [stdout] 4797c864b5c818fcfa70fc72013dc7a0c6a7ebf643aa2b9cffa56219a0c8bf27