[INFO] fetching crate tracers-core 0.1.0...
[INFO] testing tracers-core-0.1.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate tracers-core 0.1.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate tracers-core 0.1.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tracers-core 0.1.0
[INFO] finished tweaking crates.io crate tracers-core 0.1.0
[INFO] tweaked toml for crates.io crate tracers-core 0.1.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f97d75b4a13ff310bdb2d338970e4f533ed705cb3360c5a0a56f66389fbba12b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f97d75b4a13ff310bdb2d338970e4f533ed705cb3360c5a0a56f66389fbba12b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f97d75b4a13ff310bdb2d338970e4f533ed705cb3360c5a0a56f66389fbba12b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f97d75b4a13ff310bdb2d338970e4f533ed705cb3360c5a0a56f66389fbba12b", kill_on_drop: false }`
[INFO] [stdout] f97d75b4a13ff310bdb2d338970e4f533ed705cb3360c5a0a56f66389fbba12b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bfa72c9484d3e9c6d30d9365744712c45f5c267e7feb7ac335235aea6daa6807
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "bfa72c9484d3e9c6d30d9365744712c45f5c267e7feb7ac335235aea6daa6807", kill_on_drop: false }`
[INFO] [stderr]    Compiling strum v0.16.0
[INFO] [stderr]    Compiling strum_macros v0.16.0
[INFO] [stderr]    Compiling tracers-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.36s
[INFO] running `Command { std: "docker" "inspect" "bfa72c9484d3e9c6d30d9365744712c45f5c267e7feb7ac335235aea6daa6807", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfa72c9484d3e9c6d30d9365744712c45f5c267e7feb7ac335235aea6daa6807", kill_on_drop: false }`
[INFO] [stdout] bfa72c9484d3e9c6d30d9365744712c45f5c267e7feb7ac335235aea6daa6807
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf8ebcd554ae818cbf3fd70603554d6250a21839f7d83469de0accb2b9d10b5a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "cf8ebcd554ae818cbf3fd70603554d6250a21839f7d83469de0accb2b9d10b5a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling quickcheck v0.9.2
[INFO] [stderr]    Compiling quickcheck_macros v0.8.0
[INFO] [stderr]    Compiling tracers-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 13.71s
[INFO] running `Command { std: "docker" "inspect" "cf8ebcd554ae818cbf3fd70603554d6250a21839f7d83469de0accb2b9d10b5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf8ebcd554ae818cbf3fd70603554d6250a21839f7d83469de0accb2b9d10b5a", kill_on_drop: false }`
[INFO] [stdout] cf8ebcd554ae818cbf3fd70603554d6250a21839f7d83469de0accb2b9d10b5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 325d1b22da2f0b0ed36a3ba182ed2ff9c61edb8c13a24d14498d13a40ece8c6d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "325d1b22da2f0b0ed36a3ba182ed2ff9c61edb8c13a24d14498d13a40ece8c6d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tracers_core-b4962d0cafc192e9
[INFO] [stdout] 
[INFO] [stdout] running 22 tests
[INFO] [stdout] test argtypes::int::i32_test::converts_to_c_type ... ok
[INFO] [stdout] test argtypes::int::i64_test::converts_to_c_type ... ok
[INFO] [stdout] test argtypes::int::u32_test::converts_to_c_type ... ok
[INFO] [stdout] test argtypes::bool::tests::as_c_type ... ok
[INFO] [stdout] test argtypes::pointer::tests::null_pointer ... ok
[INFO] [stdout] test argtypes::pointer::tests::non_null_pointer ... ok
[INFO] [stdout] test argtypes::option::tests::option_ints ... ok
[INFO] [stdout] test argtypes::refs::test::ref_int ... ok
[INFO] [stdout] test argtypes::int::u64_test::converts_to_c_type ... ok
[INFO] [stdout] test argtypes::int::u8_test::converts_to_c_type ... ok
[INFO] [stdout] test argtypes::refs::test::ref_str ... ok
[INFO] [stdout] test argtypes::int::u16_test::converts_to_c_type ... ok
[INFO] [stdout] test argtypes::int::isize_test::converts_to_c_type ... ok
[INFO] [stdout] test argtypes::int::i16_test::converts_to_c_type ... ok
[INFO] [stdout] test argtypes::int::usize_test::converts_to_c_type ... ok
[INFO] [stdout] test argtypes::int::i8_test::converts_to_c_type ... ok
[INFO] [stdout] test argtypes::string::tests::string_as_c_type ... ok
[INFO] [stdout] test argtypes::option::tests::option_strings ... ok
[INFO] [stdout] test argtypes::cstring::tests::cstring_to_cstring ... ok
[INFO] [stdout] test argtypes::string::tests::osstring_as_c_type ... ok
[INFO] [stdout] test argtypes::string::tests::osstr_as_c_type ... ok
[INFO] [stderr]    Doc-tests tracers-core
[INFO] [stdout] test argtypes::string::tests::str_as_c_type ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 22 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.20s
[INFO] [stdout] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "325d1b22da2f0b0ed36a3ba182ed2ff9c61edb8c13a24d14498d13a40ece8c6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "325d1b22da2f0b0ed36a3ba182ed2ff9c61edb8c13a24d14498d13a40ece8c6d", kill_on_drop: false }`
[INFO] [stdout] 325d1b22da2f0b0ed36a3ba182ed2ff9c61edb8c13a24d14498d13a40ece8c6d