[INFO] fetching crate concat_strs 1.0.2...
[INFO] testing concat_strs-1.0.2 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate concat_strs 1.0.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate concat_strs 1.0.2 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 concat_strs 1.0.2
[INFO] finished tweaking crates.io crate concat_strs 1.0.2
[INFO] tweaked toml for crates.io crate concat_strs 1.0.2 written to /workspace/builds/worker-6/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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded concat_strs_impl v1.0.1
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 2d271c0ff6fca90b9881d6dec52f67f7e1ad23f9888c5a005a969413b5062f9c
[INFO] running `"docker" "start" "-a" "2d271c0ff6fca90b9881d6dec52f67f7e1ad23f9888c5a005a969413b5062f9c"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling concat_strs_impl v1.0.1
[INFO] [stderr]    Compiling concat_strs v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.76s
[INFO] running `"docker" "inspect" "2d271c0ff6fca90b9881d6dec52f67f7e1ad23f9888c5a005a969413b5062f9c"`
[INFO] running `"docker" "rm" "-f" "2d271c0ff6fca90b9881d6dec52f67f7e1ad23f9888c5a005a969413b5062f9c"`
[INFO] [stdout] 2d271c0ff6fca90b9881d6dec52f67f7e1ad23f9888c5a005a969413b5062f9c
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 67254579b19366f7ef197fd39e38889f65f8aa34a0d26d0bf15f5dff97d2004d
[INFO] running `"docker" "start" "-a" "67254579b19366f7ef197fd39e38889f65f8aa34a0d26d0bf15f5dff97d2004d"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling criterion-plot v0.4.2
[INFO] [stderr]    Compiling serde_json v1.0.53
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling plotters v0.2.15
[INFO] [stderr]    Compiling bstr v0.2.13
[INFO] [stderr]    Compiling csv v1.1.3
[INFO] [stderr]    Compiling tinytemplate v1.1.0
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling criterion v0.3.2
[INFO] [stderr]    Compiling concat_strs v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 29.76s
[INFO] running `"docker" "inspect" "67254579b19366f7ef197fd39e38889f65f8aa34a0d26d0bf15f5dff97d2004d"`
[INFO] running `"docker" "rm" "-f" "67254579b19366f7ef197fd39e38889f65f8aa34a0d26d0bf15f5dff97d2004d"`
[INFO] [stdout] 67254579b19366f7ef197fd39e38889f65f8aa34a0d26d0bf15f5dff97d2004d
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] e045d3b98344ae7724e9090d370c2b777c728fcc4e3cb74fba7ffbb079b991fa
[INFO] running `"docker" "start" "-a" "e045d3b98344ae7724e9090d370c2b777c728fcc4e3cb74fba7ffbb079b991fa"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.23s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/concat_strs-e35ed8635a9b3ec1
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/main-2a25ce23991ce06f
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests concat_strs
[INFO] [stdout] test simple ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test lib.rs - concat_strs (line 64) ... ok
[INFO] [stdout] test lib.rs -  (line 6) ... ok
[INFO] [stdout] test lib.rs - concat_strs (line 78) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "e045d3b98344ae7724e9090d370c2b777c728fcc4e3cb74fba7ffbb079b991fa"`
[INFO] running `"docker" "rm" "-f" "e045d3b98344ae7724e9090d370c2b777c728fcc4e3cb74fba7ffbb079b991fa"`
[INFO] [stdout] e045d3b98344ae7724e9090d370c2b777c728fcc4e3cb74fba7ffbb079b991fa