[INFO] crate ru5102 0.1.2 is already in cache
[INFO] checking ru5102-0.1.2 against master#6d69caba110c0c2fb90180df1cbc8be5033b91d4 for pr-69530
[INFO] extracting crate ru5102 0.1.2 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate ru5102 0.1.2 on toolchain 6d69caba110c0c2fb90180df1cbc8be5033b91d4
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6d69caba110c0c2fb90180df1cbc8be5033b91d4" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate ru5102 0.1.2
[INFO] finished tweaking crates.io crate ru5102 0.1.2
[INFO] tweaked toml for crates.io crate ru5102 0.1.2 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate ru5102 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6d69caba110c0c2fb90180df1cbc8be5033b91d4" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"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" "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" "+6d69caba110c0c2fb90180df1cbc8be5033b91d4" "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] 3ecd4c1950d4794932108476fd27f193a0efff3f5ea6b832f6fd1743edbf556a
[INFO] running `"docker" "start" "-a" "3ecd4c1950d4794932108476fd27f193a0efff3f5ea6b832f6fd1743edbf556a"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v1.0.4
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling crc16 v0.4.0
[INFO] [stderr]    Compiling bincode v1.2.0
[INFO] [stderr]     Checking ioctl-rs v0.1.6
[INFO] [stderr]     Checking termios v0.2.2
[INFO] [stderr]     Checking serial-core v0.4.0
[INFO] [stderr]    Compiling derivative v1.0.3
[INFO] [stderr]     Checking backtrace v0.3.38
[INFO] [stderr]     Checking serial-unix v0.4.0
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking serial v0.4.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.9
[INFO] [stderr]    Compiling proc-quote-impl v0.2.2
[INFO] [stderr]    Compiling toml v0.5.3
[INFO] [stderr]    Compiling proc-quote v0.2.2
[INFO] [stderr]    Compiling proc-macro-crate v0.1.4
[INFO] [stderr]    Compiling num_enum_derive v0.4.1
[INFO] [stderr]     Checking num_enum v0.4.1
[INFO] [stderr]     Checking ru5102 v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:285:13
[INFO] [stderr]     |
[INFO] [stderr] 285 |             try!(settings.set_baud_rate(serial::Baud57600));
[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/lib.rs:285:13
[INFO] [stderr]     |
[INFO] [stderr] 285 |             try!(settings.set_baud_rate(serial::Baud57600));
[INFO] [stderr]     |             ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.45s
[INFO] running `"docker" "inspect" "3ecd4c1950d4794932108476fd27f193a0efff3f5ea6b832f6fd1743edbf556a"`
[INFO] running `"docker" "rm" "-f" "3ecd4c1950d4794932108476fd27f193a0efff3f5ea6b832f6fd1743edbf556a"`
[INFO] [stdout] 3ecd4c1950d4794932108476fd27f193a0efff3f5ea6b832f6fd1743edbf556a