[INFO] fetching crate stackful 0.1.0...
[INFO] testing stackful-0.1.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate stackful 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate stackful 0.1.0 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 stackful 0.1.0
[INFO] finished tweaking crates.io crate stackful 0.1.0
[INFO] tweaked toml for crates.io crate stackful 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate stackful 0.1.0 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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] dd564726c045b723e59b029213c04393e6eb7a9df264e041bf61392d0f06450f
[INFO] running `"docker" "start" "-a" "dd564726c045b723e59b029213c04393e6eb7a9df264e041bf61392d0f06450f"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]    Compiling futures-sink v0.3.5
[INFO] [stderr]    Compiling futures-core v0.3.5
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-io v0.3.5
[INFO] [stderr]    Compiling futures-task v0.3.5
[INFO] [stderr]    Compiling stackful v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling futures-channel v0.3.5
[INFO] [stderr]    Compiling pin-project-internal v0.4.17
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling pin-project v0.4.17
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling futures-executor v0.3.5
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.89s
[INFO] running `"docker" "inspect" "dd564726c045b723e59b029213c04393e6eb7a9df264e041bf61392d0f06450f"`
[INFO] running `"docker" "rm" "-f" "dd564726c045b723e59b029213c04393e6eb7a9df264e041bf61392d0f06450f"`
[INFO] [stdout] dd564726c045b723e59b029213c04393e6eb7a9df264e041bf61392d0f06450f
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 4f203ab81ff2501b94d6ecebab1b4e3f8aefb4896cc128cfc40925baa9c16442
[INFO] running `"docker" "start" "-a" "4f203ab81ff2501b94d6ecebab1b4e3f8aefb4896cc128cfc40925baa9c16442"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling async-task v3.0.0
[INFO] [stderr]    Compiling scoped-tls-hkt v0.1.2
[INFO] [stderr]    Compiling pin-project-lite v0.1.6
[INFO] [stderr]    Compiling socket2 v0.3.12
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling crossbeam-channel v0.4.2
[INFO] [stderr]    Compiling piper v0.1.3
[INFO] [stderr]    Compiling futures v0.3.5
[INFO] [stderr]    Compiling kv-log-macro v1.0.6
[INFO] [stderr]    Compiling crossbeam v0.7.3
[INFO] [stderr]    Compiling smol v0.1.10
[INFO] [stderr]    Compiling async-std v1.6.0
[INFO] [stderr]    Compiling stackful v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 23.78s
[INFO] running `"docker" "inspect" "4f203ab81ff2501b94d6ecebab1b4e3f8aefb4896cc128cfc40925baa9c16442"`
[INFO] running `"docker" "rm" "-f" "4f203ab81ff2501b94d6ecebab1b4e3f8aefb4896cc128cfc40925baa9c16442"`
[INFO] [stdout] 4f203ab81ff2501b94d6ecebab1b4e3f8aefb4896cc128cfc40925baa9c16442
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] e5f2b9e4debbb988aae55f39a17df254cf7531e7cda5e026bfe3115e318ebedc
[INFO] running `"docker" "start" "-a" "e5f2b9e4debbb988aae55f39a17df254cf7531e7cda5e026bfe3115e318ebedc"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.19s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/stackful-8442c003e9caf950
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test drop_after_polling ... ok
[INFO] [stdout] test drop_before_polling ... ok
[INFO] [stdout] test panick ... ok
[INFO] [stdout] test test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests stackful
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs -  (line 40) ... ok
[INFO] [stdout] test src/lib.rs -  (line 30) ... ok
[INFO] [stdout] test src/lib.rs -  (line 21) ... 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" "e5f2b9e4debbb988aae55f39a17df254cf7531e7cda5e026bfe3115e318ebedc"`
[INFO] running `"docker" "rm" "-f" "e5f2b9e4debbb988aae55f39a17df254cf7531e7cda5e026bfe3115e318ebedc"`
[INFO] [stdout] e5f2b9e4debbb988aae55f39a17df254cf7531e7cda5e026bfe3115e318ebedc