[INFO] fetching crate wkhtmltox-sys 0.1.2...
[INFO] checking wkhtmltox-sys-0.1.2 against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] extracting crate wkhtmltox-sys 0.1.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate wkhtmltox-sys 0.1.2 on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wkhtmltox-sys 0.1.2
[INFO] finished tweaking crates.io crate wkhtmltox-sys 0.1.2
[INFO] tweaked toml for crates.io crate wkhtmltox-sys 0.1.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a64fc39ba7e939b984c916b994d86bb39e199c70efcc9fb0b968faeda2bd125
[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" "1a64fc39ba7e939b984c916b994d86bb39e199c70efcc9fb0b968faeda2bd125", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a64fc39ba7e939b984c916b994d86bb39e199c70efcc9fb0b968faeda2bd125", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a64fc39ba7e939b984c916b994d86bb39e199c70efcc9fb0b968faeda2bd125", kill_on_drop: false }`
[INFO] [stdout] 1a64fc39ba7e939b984c916b994d86bb39e199c70efcc9fb0b968faeda2bd125
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e2422b46db0863f8b05648f623282e9024585ffbb0342d396be02e7290018b8
[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" "9e2422b46db0863f8b05648f623282e9024585ffbb0342d396be02e7290018b8", kill_on_drop: false }`
[INFO] [stderr]     Checking wkhtmltox-sys v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]   --> examples/convert-url.rs:46:74
[INFO] [stdout]    |
[INFO] [stdout] 46 | ...    wkhtmltopdf_set_object_setting(os, CString::new("page").unwrap().as_ptr(), CString::new("https://rust-lang.org/en-US/").unwrap().a...
[INFO] [stdout]    |                                           ----------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stdout]    |                                           |
[INFO] [stdout]    |                                           this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(temporary_cstring_as_ptr)]` on by default
[INFO] [stdout]    = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]    = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]   --> examples/convert-url.rs:46:138
[INFO] [stdout]    |
[INFO] [stdout] 46 | ...w("page").unwrap().as_ptr(), CString::new("https://rust-lang.org/en-US/").unwrap().as_ptr());
[INFO] [stdout]    |                                 ----------------------------------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stdout]    |                                 |
[INFO] [stdout]    |                                 this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]    |
[INFO] [stdout]    = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]    = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "9e2422b46db0863f8b05648f623282e9024585ffbb0342d396be02e7290018b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e2422b46db0863f8b05648f623282e9024585ffbb0342d396be02e7290018b8", kill_on_drop: false }`
[INFO] [stdout] 9e2422b46db0863f8b05648f623282e9024585ffbb0342d396be02e7290018b8