[INFO] fetching crate problem 5.3.0...
[INFO] testing problem-5.3.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate problem 5.3.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate problem 5.3.0 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 problem 5.3.0
[INFO] finished tweaking crates.io crate problem 5.3.0
[INFO] tweaked toml for crates.io crate problem 5.3.0 written to /workspace/builds/worker-3/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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 52ea59c04796dadfa574efd8e1d0b9929e615fd4b4ed564e702613acc5db044d
[INFO] running `Command { std: "docker" "start" "-a" "52ea59c04796dadfa574efd8e1d0b9929e615fd4b4ed564e702613acc5db044d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52ea59c04796dadfa574efd8e1d0b9929e615fd4b4ed564e702613acc5db044d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52ea59c04796dadfa574efd8e1d0b9929e615fd4b4ed564e702613acc5db044d", kill_on_drop: false }`
[INFO] [stdout] 52ea59c04796dadfa574efd8e1d0b9929e615fd4b4ed564e702613acc5db044d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] b1c4a3b260d8ab782b6b6956e0b32eb1862bdaee4c4a6676ba25c205dcc6cad7
[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" "b1c4a3b260d8ab782b6b6956e0b32eb1862bdaee4c4a6676ba25c205dcc6cad7", kill_on_drop: false }`
[INFO] [stderr]    Compiling problem v5.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "b1c4a3b260d8ab782b6b6956e0b32eb1862bdaee4c4a6676ba25c205dcc6cad7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1c4a3b260d8ab782b6b6956e0b32eb1862bdaee4c4a6676ba25c205dcc6cad7", kill_on_drop: false }`
[INFO] [stdout] b1c4a3b260d8ab782b6b6956e0b32eb1862bdaee4c4a6676ba25c205dcc6cad7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stdout] c0810a8f5c34e9c2e0d544a9243c4954a260c1578740da2ac7fc9658d72b1866
[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" "c0810a8f5c34e9c2e0d544a9243c4954a260c1578740da2ac7fc9658d72b1866", kill_on_drop: false }`
[INFO] [stderr]    Compiling loggerv v0.7.2
[INFO] [stderr]    Compiling problem v5.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.22s
[INFO] running `Command { std: "docker" "inspect" "c0810a8f5c34e9c2e0d544a9243c4954a260c1578740da2ac7fc9658d72b1866", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0810a8f5c34e9c2e0d544a9243c4954a260c1578740da2ac7fc9658d72b1866", kill_on_drop: false }`
[INFO] [stdout] c0810a8f5c34e9c2e0d544a9243c4954a260c1578740da2ac7fc9658d72b1866
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 0db347b184c2ba70e86ede5b54cf0e1b6bdd6b7659d49805157fb40e17448e2a
[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" "0db347b184c2ba70e86ede5b54cf0e1b6bdd6b7659d49805157fb40e17448e2a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/problem-7fcd00774914c901)
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test tests::test_convertion ... ok
[INFO] [stdout] test tests::test_problem_backtrace ... ok
[INFO] [stdout] test tests::test_problem_log_iter_error ... ok
[INFO] [stdout] test tests::test_problem_log_warn ... ok
[INFO] [stdout] test tests::test_problem_log_error ... ok
[INFO] [stdout] test tests::test_problem_log_iter_warn ... ok
[INFO] [stderr] problem::logged: Continuing with error: Foo error
[INFO] [stderr] problem::logged: Continuing with error: Foo error
[INFO] [stderr] problem::logged: Continuing with error: Foo error
[INFO] [stderr] problem::logged: Continuing with error: Baz error; caused by: Bar error; caused by: Foo error
[INFO] [stderr] problem::logged: Continuing with error: Baz error; caused by: Bar error; caused by: Foo error
[INFO] [stderr] problem::logged: Continuing with error: Foo error
[INFO] [stderr] problem::logged: Continuing with error: Foo error
[INFO] [stderr] problem::logged: Continuing with error: Foo error
[INFO] [stdout] test tests::test_integration_message - should panic ... ok
[INFO] [stdout] test tests::test_integration_cause_chain - should panic ... ok
[INFO] [stdout] test tests::test_problem_macro - should panic ... ok
[INFO] [stdout] test tests::test_result_cause_chain_message - should panic ... ok
[INFO] [stdout] test tests::test_option - should panic ... ok
[INFO] [stdout] test tests::test_option_errors - should panic ... ok
[INFO] [stdout] test tests::test_in_context_of - should panic ... ok
[INFO] [stdout] test tests::test_integration - should panic ... ok
[INFO] [stdout] test tests::test_result - should panic ... ok
[INFO] [stdout] test tests::test_result_cause_chain - should panic ... ok
[INFO] [stdout] test tests::test_result_iter_or_failed_to - should panic ... ok
[INFO] [stdout] test tests::test_result_ok_or_problem - should panic ... ok
[INFO] [stdout] test tests::test_result_option_errors_unknown - should panic ... ok
[INFO] [stdout] test tests::test_panic_format_stderr_expect - should panic ... ok
[INFO] [stdout] test tests::test_panic_format_stderr_problem - should panic ... ok
[INFO] [stdout] test tests::test_panic_format_stderr_unwrap - should panic ... ok
[INFO] [stdout] test tests::test_panic_format_stderr - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests problem
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name problem --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern backtrace=/opt/rustwide/target/debug/deps/libbacktrace-4589ddf5d85d8130.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-7914ddd45155fdc8.rlib --extern loggerv=/opt/rustwide/target/debug/deps/libloggerv-80c38b09cbe21e7d.rlib --extern problem=/opt/rustwide/target/debug/deps/libproblem-8e09014bd97b855b.rlib -C embed-bitcode=no --cfg 'feature="backtrace"' --cfg 'feature="default"' --cfg 'feature="log"' --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "0db347b184c2ba70e86ede5b54cf0e1b6bdd6b7659d49805157fb40e17448e2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0db347b184c2ba70e86ede5b54cf0e1b6bdd6b7659d49805157fb40e17448e2a", kill_on_drop: false }`
[INFO] [stdout] 0db347b184c2ba70e86ede5b54cf0e1b6bdd6b7659d49805157fb40e17448e2a