[INFO] crate may 0.3.14 is already in cache
[INFO] checking may-0.3.14 against master#30ca215b4e38b32aa7abdd635c5e2d56f5724494 for pr-66037
[INFO] extracting crate may 0.3.14 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate may 0.3.14 on toolchain 30ca215b4e38b32aa7abdd635c5e2d56f5724494
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate may 0.3.14
[INFO] finished tweaking crates.io crate may 0.3.14
[INFO] tweaked toml for crates.io crate may 0.3.14 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate may 0.3.14 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a2088beaa61f26e4702a77fe4d4863cad267fbd36c1d36c57b2b1fd67a71d7e5
[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" "a2088beaa61f26e4702a77fe4d4863cad267fbd36c1d36c57b2b1fd67a71d7e5"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling openssl-sys v0.9.52
[INFO] [stderr]    Compiling may_queue v0.1.7
[INFO] [stderr]    Compiling generator v0.6.19
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]    Compiling may v0.3.14 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking socket2 v0.3.11
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking input_buffer v0.2.0
[INFO] [stderr]     Checking serde v1.0.101
[INFO] [stderr]     Checking crossbeam v0.7.2
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]    Compiling openssl v0.10.25
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/io/co_io_err.rs:42:18
[INFO] [stderr]    |
[INFO] [stderr] 42 |         self.err.description()
[INFO] [stderr]    |                  ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Checking tungstenite v0.9.1
[INFO] [stderr]     Checking docopt v1.1.0
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/io/co_io_err.rs:42:18
[INFO] [stderr]    |
[INFO] [stderr] 42 |         self.err.description()
[INFO] [stderr]    |                  ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.90s
[INFO] running `"docker" "inspect" "a2088beaa61f26e4702a77fe4d4863cad267fbd36c1d36c57b2b1fd67a71d7e5"`
[INFO] running `"docker" "rm" "-f" "a2088beaa61f26e4702a77fe4d4863cad267fbd36c1d36c57b2b1fd67a71d7e5"`
[INFO] [stdout] a2088beaa61f26e4702a77fe4d4863cad267fbd36c1d36c57b2b1fd67a71d7e5