[INFO] fetching crate tracerr 0.2.0...
[INFO] testing tracerr-0.2.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate tracerr 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate tracerr 0.2.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tracerr 0.2.0
[INFO] finished tweaking crates.io crate tracerr 0.2.0
[INFO] tweaked toml for crates.io crate tracerr 0.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 114b657a5ba0cefd7c7de2cf6795446ca12a2b391973ffd1a47889ddf3dad753
[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" "114b657a5ba0cefd7c7de2cf6795446ca12a2b391973ffd1a47889ddf3dad753", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "114b657a5ba0cefd7c7de2cf6795446ca12a2b391973ffd1a47889ddf3dad753", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "114b657a5ba0cefd7c7de2cf6795446ca12a2b391973ffd1a47889ddf3dad753", kill_on_drop: false }`
[INFO] [stdout] 114b657a5ba0cefd7c7de2cf6795446ca12a2b391973ffd1a47889ddf3dad753
[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=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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c9711a76e7099bc6faf409f54e5998b82e5e521f3c22149d115871fa5b8daf6
[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" "3c9711a76e7099bc6faf409f54e5998b82e5e521f3c22149d115871fa5b8daf6", kill_on_drop: false }`
[INFO] [stderr]    Compiling derive_more v0.99.16
[INFO] [stderr]    Compiling tracerr v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.41s
[INFO] running `Command { std: "docker" "inspect" "3c9711a76e7099bc6faf409f54e5998b82e5e521f3c22149d115871fa5b8daf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c9711a76e7099bc6faf409f54e5998b82e5e521f3c22149d115871fa5b8daf6", kill_on_drop: false }`
[INFO] [stdout] 3c9711a76e7099bc6faf409f54e5998b82e5e521f3c22149d115871fa5b8daf6
[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=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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--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] dcf19204db80605666923bda360ce1a99448b98a3056ec3c31ba6e36750e4683
[INFO] running `Command { std: "docker" "start" "-a" "dcf19204db80605666923bda360ce1a99448b98a3056ec3c31ba6e36750e4683", kill_on_drop: false }`
[INFO] [stderr]    Compiling tracerr v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "dcf19204db80605666923bda360ce1a99448b98a3056ec3c31ba6e36750e4683", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcf19204db80605666923bda360ce1a99448b98a3056ec3c31ba6e36750e4683", kill_on_drop: false }`
[INFO] [stdout] dcf19204db80605666923bda360ce1a99448b98a3056ec3c31ba6e36750e4683
[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=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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ba8953598e70d12b7ff0a9e909c618144cade65eb9f72249a4bbb853e97f845f
[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" "ba8953598e70d12b7ff0a9e909c618144cade65eb9f72249a4bbb853e97f845f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tracerr-6d06da83cc021a04)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test trace::trace_spec::displays_frames_separated_by_blank_line ... ok
[INFO] [stdout] test trace::frame_spec::displays_module_followed_by_file_and_line ... ok
[INFO] [stdout] test map_from_and_wrap_macro_spec::applies_required_from_implementation ... ok
[INFO] [stdout] test map_from_and_new_macro_spec::fills_trace_on_subsequent_calls ... ok
[INFO] [stdout] test wrap_macro_spec::creates_new_trace_frame_on_initialization ... ok
[INFO] [stdout] test wrap_macro_spec::fills_trace_on_subsequent_calls ... ok
[INFO] [stdout] test from_and_wrap_macro_spec::fills_trace_on_subsequent_calls ... ok
[INFO] [stdout] test map_from_and_wrap_macro_spec::fills_trace_on_subsequent_calls ... ok
[INFO] [stdout] test map_from_and_new_macro_spec::applies_required_from_implementation ... ok
[INFO] [stdout] test from_and_wrap_macro_spec::applies_required_from_implementation ... ok
[INFO] [stdout] test new_macro_spec::creates_new_trace_frame_on_initialization ... ok
[INFO] [stderr]    Doc-tests tracerr
[INFO] [stdout] test new_macro_spec::fills_trace_on_subsequent_calls ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - wrap (line 290) ... ok
[INFO] [stdout] test src/lib.rs - (line 12) ... ok
[INFO] [stdout] test src/lib.rs - from_and_wrap (line 344) ... ok
[INFO] [stdout] test src/lib.rs - new (line 248) ... ok
[INFO] [stdout] test src/lib.rs - map_from_and_wrap (line 317) ... ok
[INFO] [stdout] test src/lib.rs - map_from_and_new (line 270) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.02s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ba8953598e70d12b7ff0a9e909c618144cade65eb9f72249a4bbb853e97f845f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba8953598e70d12b7ff0a9e909c618144cade65eb9f72249a4bbb853e97f845f", kill_on_drop: false }`
[INFO] [stdout] ba8953598e70d12b7ff0a9e909c618144cade65eb9f72249a4bbb853e97f845f