[INFO] fetching crate prometrics 0.1.13...
[INFO] testing prometrics-0.1.13 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate prometrics 0.1.13 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate prometrics 0.1.13 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 prometrics 0.1.13
[INFO] finished tweaking crates.io crate prometrics 0.1.13
[INFO] tweaked toml for crates.io crate prometrics 0.1.13 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate prometrics 0.1.13 already has a lockfile, it will not be regenerated
[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-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=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] [stdout] 0ba70aecb3153c1ec07cdcfe9f0a7c309a90fea66a189d6e4b3805a13ee3a062
[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" "0ba70aecb3153c1ec07cdcfe9f0a7c309a90fea66a189d6e4b3805a13ee3a062"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling nom v2.2.1
[INFO] [stderr]    Compiling atomic_immut v0.1.4
[INFO] [stderr]    Compiling procinfo v0.4.2
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling trackable_derive v0.1.3
[INFO] [stderr]    Compiling trackable v0.2.23
[INFO] [stderr]    Compiling prometrics v0.1.13 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/metrics/process.rs:17:31
[INFO] [stderr]    |
[INFO] [stderr] 17 |     static ref CLK_TCK: f64 = { unsafe { libc::sysconf(libc::_SC_CLK_TCK) as f64 } };
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/metrics/process.rs:18:34
[INFO] [stderr]    |
[INFO] [stderr] 18 |     static ref PAGESIZE: usize = { unsafe { libc::sysconf(libc::_SC_PAGESIZE) as usize } };
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.86s
[INFO] running `"docker" "inspect" "0ba70aecb3153c1ec07cdcfe9f0a7c309a90fea66a189d6e4b3805a13ee3a062"`
[INFO] running `"docker" "rm" "-f" "0ba70aecb3153c1ec07cdcfe9f0a7c309a90fea66a189d6e4b3805a13ee3a062"`
[INFO] [stdout] 0ba70aecb3153c1ec07cdcfe9f0a7c309a90fea66a189d6e4b3805a13ee3a062
[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=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] 68e7b759f522a8095009c97a6e025e8fe6d1ffa4a86cd1955ddb9c5f3c747772
[INFO] running `"docker" "start" "-a" "68e7b759f522a8095009c97a6e025e8fe6d1ffa4a86cd1955ddb9c5f3c747772"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling prometrics v0.1.13 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/metrics/process.rs:17:31
[INFO] [stderr]    |
[INFO] [stderr] 17 |     static ref CLK_TCK: f64 = { unsafe { libc::sysconf(libc::_SC_CLK_TCK) as f64 } };
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/metrics/process.rs:18:34
[INFO] [stderr]    |
[INFO] [stderr] 18 |     static ref PAGESIZE: usize = { unsafe { libc::sysconf(libc::_SC_PAGESIZE) as usize } };
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/metrics/process.rs:17:31
[INFO] [stderr]    |
[INFO] [stderr] 17 |     static ref CLK_TCK: f64 = { unsafe { libc::sysconf(libc::_SC_CLK_TCK) as f64 } };
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/metrics/process.rs:18:34
[INFO] [stderr]    |
[INFO] [stderr] 18 |     static ref PAGESIZE: usize = { unsafe { libc::sysconf(libc::_SC_PAGESIZE) as usize } };
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.18s
[INFO] running `"docker" "inspect" "68e7b759f522a8095009c97a6e025e8fe6d1ffa4a86cd1955ddb9c5f3c747772"`
[INFO] running `"docker" "rm" "-f" "68e7b759f522a8095009c97a6e025e8fe6d1ffa4a86cd1955ddb9c5f3c747772"`
[INFO] [stdout] 68e7b759f522a8095009c97a6e025e8fe6d1ffa4a86cd1955ddb9c5f3c747772
[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=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"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a4f0297defc3fd8393e43111f8646f1e03e2134e607b6b9fd68090e762b5df15
[INFO] running `"docker" "start" "-a" "a4f0297defc3fd8393e43111f8646f1e03e2134e607b6b9fd68090e762b5df15"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/metrics/process.rs:17:31
[INFO] [stderr]    |
[INFO] [stderr] 17 |     static ref CLK_TCK: f64 = { unsafe { libc::sysconf(libc::_SC_CLK_TCK) as f64 } };
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/metrics/process.rs:18:34
[INFO] [stderr]    |
[INFO] [stderr] 18 |     static ref PAGESIZE: usize = { unsafe { libc::sysconf(libc::_SC_PAGESIZE) as usize } };
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/metrics/process.rs:17:31
[INFO] [stderr]    |
[INFO] [stderr] 17 |     static ref CLK_TCK: f64 = { unsafe { libc::sysconf(libc::_SC_CLK_TCK) as f64 } };
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/metrics/process.rs:18:34
[INFO] [stderr]    |
[INFO] [stderr] 18 |     static ref PAGESIZE: usize = { unsafe { libc::sysconf(libc::_SC_PAGESIZE) as usize } };
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/prometrics-557337d73f64175d
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test atomic::test::atomic_f64_works ... ok
[INFO] [stdout] test metrics::summary::test::it_works ... ok
[INFO] [stdout] test test::aggregation_works ... ok
[INFO] [stdout] test metrics::counter::test::it_works ... ok
[INFO] [stdout] test metrics::gauge::test::it_works ... ok
[INFO] [stdout] test metrics::histogram::test::buckets_works ... ok
[INFO] [stdout] test metrics::histogram::test::it_works ... ok
[INFO] [stdout] test test::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests prometrics
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/metrics/gauge.rs - metrics::gauge::Gauge::track_inprogress (line 102) ... ok
[INFO] [stdout] test src/label.rs - label::Label::new (line 37) ... ok
[INFO] [stdout] test src/lib.rs -  (line 9) ... ok
[INFO] [stdout] test src/metrics/counter.rs - metrics::counter::Counter (line 19) ... ok
[INFO] [stdout] test src/metrics/process.rs - metrics::process::ProcessMetricsCollector (line 33) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "a4f0297defc3fd8393e43111f8646f1e03e2134e607b6b9fd68090e762b5df15"`
[INFO] running `"docker" "rm" "-f" "a4f0297defc3fd8393e43111f8646f1e03e2134e607b6b9fd68090e762b5df15"`
[INFO] [stdout] a4f0297defc3fd8393e43111f8646f1e03e2134e607b6b9fd68090e762b5df15