[INFO] fetching crate flate2 1.0.11...
[INFO] checking flate2-1.0.11 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate flate2 1.0.11 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate flate2 1.0.11 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate flate2 1.0.11
[INFO] finished tweaking crates.io crate flate2 1.0.11
[INFO] tweaked toml for crates.io crate flate2 1.0.11 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 21387ebd2196fe0d4c29af089afeff7bc63858b5579b02a9f53c6f956a067cdd
[INFO] running `"docker" "start" "-a" "21387ebd2196fe0d4c29af089afeff7bc63858b5579b02a9f53c6f956a067cdd"`
[INFO] [stderr]     Checking flate2 v1.0.11 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking quickcheck v0.8.5
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/crc.rs:170:19
[INFO] [stderr]     |
[INFO] [stderr] 170 |         let amt = try!(self.inner.write(buf));
[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/zio.rs:244:21
[INFO] [stderr]     |
[INFO] [stderr] 244 |             let n = try!(self.obj.as_mut().unwrap().write(&self.buf));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] error: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/crc.rs:170:19
[INFO] [stderr]     |
[INFO] [stderr] 170 |         let amt = try!(self.inner.write(buf));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr]     |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]    --> src/lib.rs:80:24
[INFO] [stderr]     |
[INFO] [stderr] 80  | #![cfg_attr(test, deny(warnings))]
[INFO] [stderr]     |                        ^^^^^^^^
[INFO] [stderr]     = note: `#[deny(deprecated)]` implied by `#[deny(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] error: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/zio.rs:244:21
[INFO] [stderr]     |
[INFO] [stderr] 244 |             let n = try!(self.obj.as_mut().unwrap().write(&self.buf));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `flate2`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "21387ebd2196fe0d4c29af089afeff7bc63858b5579b02a9f53c6f956a067cdd"`
[INFO] running `"docker" "rm" "-f" "21387ebd2196fe0d4c29af089afeff7bc63858b5579b02a9f53c6f956a067cdd"`
[INFO] [stdout] 21387ebd2196fe0d4c29af089afeff7bc63858b5579b02a9f53c6f956a067cdd