[INFO] fetching crate fb_failure_ext 0.1.1...
[INFO] testing fb_failure_ext-0.1.1 against try#eafdee2dfae8c2233b74f98b123308be7ccefcc6 for pr-79296
[INFO] extracting crate fb_failure_ext 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate fb_failure_ext 0.1.1 on toolchain eafdee2dfae8c2233b74f98b123308be7ccefcc6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fb_failure_ext 0.1.1
[INFO] finished tweaking crates.io crate fb_failure_ext 0.1.1
[INFO] tweaked toml for crates.io crate fb_failure_ext 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7a92f4b83f2e32b41bdb2fe54b44e6bfe6f8ca4d8b78768f381a543419f6d2b2
[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" "7a92f4b83f2e32b41bdb2fe54b44e6bfe6f8ca4d8b78768f381a543419f6d2b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a92f4b83f2e32b41bdb2fe54b44e6bfe6f8ca4d8b78768f381a543419f6d2b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a92f4b83f2e32b41bdb2fe54b44e6bfe6f8ca4d8b78768f381a543419f6d2b2", kill_on_drop: false }`
[INFO] [stdout] 7a92f4b83f2e32b41bdb2fe54b44e6bfe6f8ca4d8b78768f381a543419f6d2b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 91fe20ad22a6ca42f06dddeacdcad358673b8d058258f2956d9a4101759d0ff2
[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" "91fe20ad22a6ca42f06dddeacdcad358673b8d058258f2956d9a4101759d0ff2", kill_on_drop: false }`
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]    Compiling syn v1.0.52
[INFO] [stderr]    Compiling backtrace v0.3.55
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling fb_failure_ext v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.69s
[INFO] running `Command { std: "docker" "inspect" "91fe20ad22a6ca42f06dddeacdcad358673b8d058258f2956d9a4101759d0ff2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91fe20ad22a6ca42f06dddeacdcad358673b8d058258f2956d9a4101759d0ff2", kill_on_drop: false }`
[INFO] [stdout] 91fe20ad22a6ca42f06dddeacdcad358673b8d058258f2956d9a4101759d0ff2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a096c66937c084220644801be6e62c65316416670f8c746399cc1196db088e8
[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" "6a096c66937c084220644801be6e62c65316416670f8c746399cc1196db088e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling thiserror v1.0.22
[INFO] [stderr]    Compiling fb_failure_ext v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.76s
[INFO] running `Command { std: "docker" "inspect" "6a096c66937c084220644801be6e62c65316416670f8c746399cc1196db088e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a096c66937c084220644801be6e62c65316416670f8c746399cc1196db088e8", kill_on_drop: false }`
[INFO] [stdout] 6a096c66937c084220644801be6e62c65316416670f8c746399cc1196db088e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a53d5367b169d38472749fae609cd7cd1b93cdf52986542f3b56853a67f2f206
[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" "a53d5367b169d38472749fae609cd7cd1b93cdf52986542f3b56853a67f2f206", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/failure_ext-32014c128f9a2abe
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test context_futures::test::poll_after_completion_fail ... ok
[INFO] [stdout] test context_futures::test::poll_after_completion_error ... ok
[INFO] [stdout] test context_futures::test::poll_after_completion_error_with_context ... ok
[INFO] [stdout] test context_streams::test::stream_poll_after_completion_error ... ok
[INFO] [stdout] test context_streams::test::stream_poll_after_completion_error_with_context ... ok
[INFO] [stdout] test context_streams::test::stream_poll_after_completion_fail_with_context ... ok
[INFO] [stdout] test macros::test::downcast_context ... ok
[INFO] [stdout] test macros::test::downcast_ref_basic ... ok
[INFO] [stdout] test macros::test::downcast_ref_context ... ok
[INFO] [stdout] test macros::test::downcast_ref_syntax ... ok
[INFO] [stdout] test macros::test::downcast_syntax ... ok
[INFO] [stdout] test context_streams::test::stream_poll_after_completion_fail ... ok
[INFO] [stdout] test macros::test::downcast_miss ... ok
[INFO] [stdout] test macros::test::downcast_ref_miss ... ok
[INFO] [stdout] test macros::test::downcast_basic ... ok
[INFO] [stdout] test context_futures::test::poll_after_completion_fail_with_context ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests failure_ext
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - prelude (line 34) ... ok
[INFO] [stdout] test src/macros.rs - err_downcast_ref (line 13) ... ok
[INFO] [stdout] test src/macros.rs - err_downcast (line 57) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a53d5367b169d38472749fae609cd7cd1b93cdf52986542f3b56853a67f2f206", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a53d5367b169d38472749fae609cd7cd1b93cdf52986542f3b56853a67f2f206", kill_on_drop: false }`
[INFO] [stdout] a53d5367b169d38472749fae609cd7cd1b93cdf52986542f3b56853a67f2f206