[INFO] fetching crate fine_grained 0.1.2...
[INFO] building fine_grained-0.1.2 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate fine_grained 0.1.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate fine_grained 0.1.2 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate fine_grained 0.1.2
[INFO] finished tweaking crates.io crate fine_grained 0.1.2
[INFO] tweaked toml for crates.io crate fine_grained 0.1.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 56e5df3b0ec3aca9e66a2f7260e7fba4773401c834ef5e6e7a91d6a24c0a284d
[INFO] running `"docker" "start" "-a" "56e5df3b0ec3aca9e66a2f7260e7fba4773401c834ef5e6e7a91d6a24c0a284d"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling fine_grained v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/stopwatch.rs:91:17
[INFO] [stderr]    |
[INFO] [stderr] 91 | /                 /// If the stopwatch is currently running, the total time is the saved total time
[INFO] [stderr] 92 | |                 /// plus the current lap's duration up to this point.
[INFO] [stderr]    | |_____________________________________________________________________^
[INFO] [stderr] 93 |                   let current_time: u64 = time::precise_time_ns();
[INFO] [stderr]    |                   ------------------------------------------------ rustdoc does not generate documentation for statements
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `"docker" "inspect" "56e5df3b0ec3aca9e66a2f7260e7fba4773401c834ef5e6e7a91d6a24c0a284d"`
[INFO] running `"docker" "rm" "-f" "56e5df3b0ec3aca9e66a2f7260e7fba4773401c834ef5e6e7a91d6a24c0a284d"`
[INFO] [stdout] 56e5df3b0ec3aca9e66a2f7260e7fba4773401c834ef5e6e7a91d6a24c0a284d
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 35fbb90235c178f972ee21b7f79a4beb476f9fe267515e3b63ff27adefd4c249
[INFO] running `"docker" "start" "-a" "35fbb90235c178f972ee21b7f79a4beb476f9fe267515e3b63ff27adefd4c249"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling fine_grained v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/stopwatch.rs:91:17
[INFO] [stderr]    |
[INFO] [stderr] 91 | /                 /// If the stopwatch is currently running, the total time is the saved total time
[INFO] [stderr] 92 | |                 /// plus the current lap's duration up to this point.
[INFO] [stderr]    | |_____________________________________________________________________^
[INFO] [stderr] 93 |                   let current_time: u64 = time::precise_time_ns();
[INFO] [stderr]    |                   ------------------------------------------------ rustdoc does not generate documentation for statements
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/stopwatch.rs:91:17
[INFO] [stderr]    |
[INFO] [stderr] 91 | /                 /// If the stopwatch is currently running, the total time is the saved total time
[INFO] [stderr] 92 | |                 /// plus the current lap's duration up to this point.
[INFO] [stderr]    | |_____________________________________________________________________^
[INFO] [stderr] 93 |                   let current_time: u64 = time::precise_time_ns();
[INFO] [stderr]    |                   ------------------------------------------------ rustdoc does not generate documentation for statements
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.48s
[INFO] running `"docker" "inspect" "35fbb90235c178f972ee21b7f79a4beb476f9fe267515e3b63ff27adefd4c249"`
[INFO] running `"docker" "rm" "-f" "35fbb90235c178f972ee21b7f79a4beb476f9fe267515e3b63ff27adefd4c249"`
[INFO] [stdout] 35fbb90235c178f972ee21b7f79a4beb476f9fe267515e3b63ff27adefd4c249