[INFO] fetching crate list_flattener 0.3.0...
[INFO] testing list_flattener-0.3.0 against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] extracting crate list_flattener 0.3.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate list_flattener 0.3.0 on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate list_flattener 0.3.0
[INFO] finished tweaking crates.io crate list_flattener 0.3.0
[INFO] tweaked toml for crates.io crate list_flattener 0.3.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate list_flattener 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "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] 72d7ca3217dc690e97f475ff7b4e10787ef22f6e7c2426a594a34060b6389a6a
[INFO] running `Command { std: "docker" "start" "-a" "72d7ca3217dc690e97f475ff7b4e10787ef22f6e7c2426a594a34060b6389a6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72d7ca3217dc690e97f475ff7b4e10787ef22f6e7c2426a594a34060b6389a6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72d7ca3217dc690e97f475ff7b4e10787ef22f6e7c2426a594a34060b6389a6a", kill_on_drop: false }`
[INFO] [stdout] 72d7ca3217dc690e97f475ff7b4e10787ef22f6e7c2426a594a34060b6389a6a
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2705078d06451ae66073fdb1d90c5d920584b6e38043650bbf3d9001d1eb938
[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" "a2705078d06451ae66073fdb1d90c5d920584b6e38043650bbf3d9001d1eb938", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling parse_int v0.4.0
[INFO] [stderr]    Compiling list_flattener v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.98s
[INFO] running `Command { std: "docker" "inspect" "a2705078d06451ae66073fdb1d90c5d920584b6e38043650bbf3d9001d1eb938", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2705078d06451ae66073fdb1d90c5d920584b6e38043650bbf3d9001d1eb938", kill_on_drop: false }`
[INFO] [stdout] a2705078d06451ae66073fdb1d90c5d920584b6e38043650bbf3d9001d1eb938
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b0b9e21632faafe24b55f68060da60b78d2fa7f2afc55b64c8888f5f5be6cb0
[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" "9b0b9e21632faafe24b55f68060da60b78d2fa7f2afc55b64c8888f5f5be6cb0", kill_on_drop: false }`
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling difference v2.0.0
[INFO] [stderr]    Compiling pretty_assertions v0.6.1
[INFO] [stderr]    Compiling list_flattener v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.76s
[INFO] running `Command { std: "docker" "inspect" "9b0b9e21632faafe24b55f68060da60b78d2fa7f2afc55b64c8888f5f5be6cb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b0b9e21632faafe24b55f68060da60b78d2fa7f2afc55b64c8888f5f5be6cb0", kill_on_drop: false }`
[INFO] [stdout] 9b0b9e21632faafe24b55f68060da60b78d2fa7f2afc55b64c8888f5f5be6cb0
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", 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] 8f2073629ceafe8c6d63cf85ab652b84c640e423cc5fc1f4128e83df9ff496d4
[INFO] running `Command { std: "docker" "start" "-a" "8f2073629ceafe8c6d63cf85ab652b84c640e423cc5fc1f4128e83df9ff496d4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/list_flattener-d4d365b931348117
[INFO] [stdout] running 21 tests
[INFO] [stdout] test test_e2e::deep ... ok
[INFO] [stdout] test test_e2e::deep_hex ... ok
[INFO] [stdout] test test_flatter::descending ... ok
[INFO] [stdout] test test_flatter::flat_flat ... ok
[INFO] [stdout] test test_parser::decreasing_nested_list ... ok
[INFO] [stdout] test test_parser::increasing_nested_list ... ok
[INFO] [stdout] test test_parser::empty_list ... ok
[INFO] [stdout] test test_flatter::ascending ... ok
[INFO] [stdout] test test_parser::incomplete_input ... ok
[INFO] [stdout] test test_flatter::single ... ok
[INFO] [stdout] test test_parser_tools::do_peek ... ok
[INFO] [stdout] test test_parser::tailing_input ... ok
[INFO] [stdout] test test_parser::naked_num ... ok
[INFO] [stdout] test test_parser::just_closed ... ok
[INFO] [stdout] test test_parser::linear_list ... ok
[INFO] [stdout] test test_parser_tools::do_skip_whitespace ... ok
[INFO] [stdout] test test_parser::naked_hex_num ... ok
[INFO] [stdout] test test_parser::linear_list_trim ... ok
[INFO] [stdout] test test_parser_tools::incomplete_peek ... ok
[INFO] [stdout] test test_parser::missing_comma ... ok
[INFO] [stdout] test test_parser::invalid_element ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/list_flattener-8d68c5574ea99bad
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests list_flattener
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8f2073629ceafe8c6d63cf85ab652b84c640e423cc5fc1f4128e83df9ff496d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f2073629ceafe8c6d63cf85ab652b84c640e423cc5fc1f4128e83df9ff496d4", kill_on_drop: false }`
[INFO] [stdout] 8f2073629ceafe8c6d63cf85ab652b84c640e423cc5fc1f4128e83df9ff496d4