[INFO] fetching crate ramp 0.5.2...
[INFO] checking ramp-0.5.2 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate ramp 0.5.2 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate ramp 0.5.2 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate ramp 0.5.2
[INFO] finished tweaking crates.io crate ramp 0.5.2
[INFO] tweaked toml for crates.io crate ramp 0.5.2 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate ramp 0.5.2 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 6d9e4a81301dfa7099cc202edb756bd4d97cbfbd30256a645229c363fe71c889
[INFO] running `"docker" "start" "-a" "6d9e4a81301dfa7099cc202edb756bd4d97cbfbd30256a645229c363fe71c889"`
[INFO] [stderr]     Checking libc v0.2.29
[INFO] [stderr]    Compiling num-traits v0.1.40
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]    Compiling cc v1.0.17
[INFO] [stderr]    Compiling rustc-cfg v0.2.0
[INFO] [stderr]     Checking regex-syntax v0.4.1
[INFO] [stderr]     Checking rand_core v0.2.1
[INFO] [stderr]     Checking log v0.3.8
[INFO] [stderr]     Checking hamming v0.1.3
[INFO] [stderr]     Checking ieee754 v0.2.2
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking rand v0.5.4
[INFO] [stderr]     Checking rand v0.4.1
[INFO] [stderr]     Checking rand v0.3.16
[INFO] [stderr]    Compiling num-integer v0.1.35
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking regex v0.2.3
[INFO] [stderr]     Checking num-bigint v0.1.40
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]     Checking quickcheck v0.6.0
[INFO] [stderr]    Compiling ramp v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/int.rs:317:13
[INFO] [stderr]     |
[INFO] [stderr] 317 |             try!(w.write_all(b"-"));
[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/int.rs:317:13
[INFO] [stderr]     |
[INFO] [stderr] 317 |             try!(w.write_all(b"-"));
[INFO] [stderr]     |             ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.20s
[INFO] running `"docker" "inspect" "6d9e4a81301dfa7099cc202edb756bd4d97cbfbd30256a645229c363fe71c889"`
[INFO] running `"docker" "rm" "-f" "6d9e4a81301dfa7099cc202edb756bd4d97cbfbd30256a645229c363fe71c889"`
[INFO] [stdout] 6d9e4a81301dfa7099cc202edb756bd4d97cbfbd30256a645229c363fe71c889