[INFO] fetching crate cassandra-cpp-sys 0.12.0...
[INFO] checking cassandra-cpp-sys-0.12.0 against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] extracting crate cassandra-cpp-sys 0.12.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate cassandra-cpp-sys 0.12.0 on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate cassandra-cpp-sys 0.12.0
[INFO] finished tweaking crates.io crate cassandra-cpp-sys 0.12.0
[INFO] tweaked toml for crates.io crate cassandra-cpp-sys 0.12.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "RUSTFLAGS=--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" "/opt/rustwide/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b1b3aac02c954e981e86ddfc85a1e89cbc22dfaa63dc96d0cd080de62187642e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "b1b3aac02c954e981e86ddfc85a1e89cbc22dfaa63dc96d0cd080de62187642e"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cassandra-cpp-sys v0.12.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]  --> src/ffi_util.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 |     Ok(try!(str::from_utf8(slice)).to_owned())
[INFO] [stderr]   |        ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]  --> src/ffi_util.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 |     Ok(try!(str::from_utf8(slice)).to_owned())
[INFO] [stderr]   |        ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> examples/async.rs:54:13
[INFO] [stderr]    |
[INFO] [stderr] 54 |         let mut cluster = create_cluster();
[INFO] [stderr]    |             ----^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> examples/ssl.rs:15:24
[INFO] [stderr]    |
[INFO] [stderr] 15 |         let mut file = try!(File::open(file));
[INFO] [stderr]    |                        ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> examples/ssl.rs:16:25
[INFO] [stderr]    |
[INFO] [stderr] 16 |         let cert_size = try!(file.metadata()).len() as usize;
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> examples/ssl.rs:18:24
[INFO] [stderr]    |
[INFO] [stderr] 18 |         let byte_len = try!(file.read_to_end(&mut cert));
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rc`
[INFO] [stderr]   --> examples/tuple.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 36 |         let rc = cass_future_error_code(future);
[INFO] [stderr]    |             ^^ help: consider prefixing with an underscore: `_rc`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rc`
[INFO] [stderr]   --> examples/tuple.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |             rc => print_error(future),
[INFO] [stderr]    |             ^^ help: consider prefixing with an underscore: `_rc`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]   --> examples/simple.rs:23:13
[INFO] [stderr]    |
[INFO] [stderr] 23 |         let result = match cass_future_error_code(connect_future) {
[INFO] [stderr]    |             ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rc`
[INFO] [stderr]   --> examples/simple.rs:52:21
[INFO] [stderr]    |
[INFO] [stderr] 52 |                     rc => {
[INFO] [stderr]    |                     ^^ help: consider prefixing with an underscore: `_rc`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rc`
[INFO] [stderr]   --> examples/simple.rs:70:13
[INFO] [stderr]    |
[INFO] [stderr] 70 |             rc => {
[INFO] [stderr]    |             ^^ help: consider prefixing with an underscore: `_rc`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rc`
[INFO] [stderr]   --> examples/named_parameters.rs:91:13
[INFO] [stderr]    |
[INFO] [stderr] 91 |         let rc = cass_future_error_code(future);
[INFO] [stderr]    |             ^^ help: consider prefixing with an underscore: `_rc`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]   --> examples/named_parameters.rs:92:13
[INFO] [stderr]    |
[INFO] [stderr] 92 |         let result = match cass_future_error_code(future) {
[INFO] [stderr]    |             ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> examples/named_parameters.rs:170:13
[INFO] [stderr]     |
[INFO] [stderr] 170 |         let result = match connect_session(session, cluster) {
[INFO] [stderr]     |             ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rc`
[INFO] [stderr]    --> examples/named_parameters.rs:172:13
[INFO] [stderr]     |
[INFO] [stderr] 172 |             rc => {
[INFO] [stderr]     |             ^^ help: consider prefixing with an underscore: `_rc`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> examples/tuple.rs:123:13
[INFO] [stderr]     |
[INFO] [stderr] 123 |         let mut session = &mut *cass_session_new();
[INFO] [stderr]     |             ----^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]   --> examples/maps.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 36 |         let result = match cass_future_error_code(future) {
[INFO] [stderr]    |             ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rc`
[INFO] [stderr]   --> examples/ssl.rs:92:21
[INFO] [stderr]    |
[INFO] [stderr] 92 |                     rc => {
[INFO] [stderr]    |                     ^^ help: consider prefixing with an underscore: `_rc`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `select_from_maps`
[INFO] [stderr]   --> examples/maps.rs:51:1
[INFO] [stderr]    |
[INFO] [stderr] 51 | fn select_from_maps(session: &mut CassSession, key: &str) -> Result<(), CassError> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.77s
[INFO] running `"docker" "inspect" "b1b3aac02c954e981e86ddfc85a1e89cbc22dfaa63dc96d0cd080de62187642e"`
[INFO] running `"docker" "rm" "-f" "b1b3aac02c954e981e86ddfc85a1e89cbc22dfaa63dc96d0cd080de62187642e"`
[INFO] [stdout] b1b3aac02c954e981e86ddfc85a1e89cbc22dfaa63dc96d0cd080de62187642e