[INFO] fetching crate fb_failure_ext 0.1.3...
[INFO] testing fb_failure_ext-0.1.3 against 1.54.0 for beta-1.55-2
[INFO] extracting crate fb_failure_ext 0.1.3 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate fb_failure_ext 0.1.3 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fb_failure_ext 0.1.3
[INFO] finished tweaking crates.io crate fb_failure_ext 0.1.3
[INFO] tweaked toml for crates.io crate fb_failure_ext 0.1.3 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b53d5dd8c7a34003282c37b01975a0e0c8bb33488b989261de75bebef9ffc603
[INFO] running `Command { std: "docker" "start" "-a" "b53d5dd8c7a34003282c37b01975a0e0c8bb33488b989261de75bebef9ffc603", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b53d5dd8c7a34003282c37b01975a0e0c8bb33488b989261de75bebef9ffc603", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b53d5dd8c7a34003282c37b01975a0e0c8bb33488b989261de75bebef9ffc603", kill_on_drop: false }`
[INFO] [stdout] b53d5dd8c7a34003282c37b01975a0e0c8bb33488b989261de75bebef9ffc603
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4abbf1342c60b4e18d71b76714c0a34bea2c64c753c685f46e48c97570b5b920
[INFO] running `Command { std: "docker" "start" "-a" "4abbf1342c60b4e18d71b76714c0a34bea2c64c753c685f46e48c97570b5b920", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling gimli v0.25.0
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling slog v2.7.0
[INFO] [stderr]    Compiling futures v0.1.31
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling object v0.26.1
[INFO] [stderr]    Compiling addr2line v0.16.0
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling fb_failure_ext v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.32s
[INFO] running `Command { std: "docker" "inspect" "4abbf1342c60b4e18d71b76714c0a34bea2c64c753c685f46e48c97570b5b920", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4abbf1342c60b4e18d71b76714c0a34bea2c64c753c685f46e48c97570b5b920", kill_on_drop: false }`
[INFO] [stdout] 4abbf1342c60b4e18d71b76714c0a34bea2c64c753c685f46e48c97570b5b920
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 42e3dc3cbd0a46ff4dbc6546f6364e6204307f1db5d3d9e4bb4d745f901e8d8f
[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" "42e3dc3cbd0a46ff4dbc6546f6364e6204307f1db5d3d9e4bb4d745f901e8d8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling thiserror v1.0.26
[INFO] [stderr]    Compiling fb_failure_ext v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.85s
[INFO] running `Command { std: "docker" "inspect" "42e3dc3cbd0a46ff4dbc6546f6364e6204307f1db5d3d9e4bb4d745f901e8d8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42e3dc3cbd0a46ff4dbc6546f6364e6204307f1db5d3d9e4bb4d745f901e8d8f", kill_on_drop: false }`
[INFO] [stdout] 42e3dc3cbd0a46ff4dbc6546f6364e6204307f1db5d3d9e4bb4d745f901e8d8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 37d03706851a18a6014882412e1640919b7f76d383c8feefca331bc127969dc2
[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" "37d03706851a18a6014882412e1640919b7f76d383c8feefca331bc127969dc2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/failure_ext-b7b3f98f5da48e24)
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test macros::test::downcast_miss ... ok
[INFO] [stdout] test macros::test::downcast_syntax ... ok
[INFO] [stdout] test macros::test::downcast_context ... ok
[INFO] [stdout] test macros::test::downcast_basic ... ok
[INFO] [stdout] test context_streams::test::stream_poll_after_completion_fail_with_context ... ok
[INFO] [stdout] test context_streams::test::stream_poll_after_completion_error ... ok
[INFO] [stdout] test macros::test::downcast_ref_basic ... ok
[INFO] [stdout] test context_streams::test::stream_poll_after_completion_error_with_context ... ok
[INFO] [stdout] test macros::test::downcast_ref_context ... ok
[INFO] [stdout] test macros::test::downcast_ref_miss ... ok
[INFO] [stdout] test context_streams::test::stream_poll_after_completion_fail ... ok
[INFO] [stdout] test macros::test::downcast_ref_syntax ... ok
[INFO] [stdout] test context_futures::test::poll_after_completion_fail_with_context - should panic ... ok
[INFO] [stdout] test context_futures::test::poll_after_completion_fail - should panic ... ok
[INFO] [stdout] test context_futures::test::poll_after_completion_error - should panic ... ok
[INFO] [stdout] test context_futures::test::poll_after_completion_error_with_context - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[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; finished in 1.50s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "37d03706851a18a6014882412e1640919b7f76d383c8feefca331bc127969dc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37d03706851a18a6014882412e1640919b7f76d383c8feefca331bc127969dc2", kill_on_drop: false }`
[INFO] [stdout] 37d03706851a18a6014882412e1640919b7f76d383c8feefca331bc127969dc2