[INFO] fetching crate list_flattener 0.3.0...
[INFO] testing list_flattener-0.3.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate list_flattener 0.3.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate list_flattener 0.3.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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-1/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" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 11413e068a9818b67d2a028b309a73df41928f34025ea610cc102d1f3bbc475b
[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" "11413e068a9818b67d2a028b309a73df41928f34025ea610cc102d1f3bbc475b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11413e068a9818b67d2a028b309a73df41928f34025ea610cc102d1f3bbc475b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11413e068a9818b67d2a028b309a73df41928f34025ea610cc102d1f3bbc475b", kill_on_drop: false }`
[INFO] [stdout] 11413e068a9818b67d2a028b309a73df41928f34025ea610cc102d1f3bbc475b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e784a9b2ed61447f03e80df60dbfd66f4e721bfa4cca8a3b780b3ac4f540f47
[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" "9e784a9b2ed61447f03e80df60dbfd66f4e721bfa4cca8a3b780b3ac4f540f47", kill_on_drop: false }`
[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 1.53s
[INFO] running `Command { std: "docker" "inspect" "9e784a9b2ed61447f03e80df60dbfd66f4e721bfa4cca8a3b780b3ac4f540f47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e784a9b2ed61447f03e80df60dbfd66f4e721bfa4cca8a3b780b3ac4f540f47", kill_on_drop: false }`
[INFO] [stdout] 9e784a9b2ed61447f03e80df60dbfd66f4e721bfa4cca8a3b780b3ac4f540f47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 5073edfcb1c9918bdee8253bd07f7f46ca9eff8eaf67acec9cab1b0e5e51c4cf
[INFO] running `Command { std: "docker" "start" "-a" "5073edfcb1c9918bdee8253bd07f7f46ca9eff8eaf67acec9cab1b0e5e51c4cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling list_flattener v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "5073edfcb1c9918bdee8253bd07f7f46ca9eff8eaf67acec9cab1b0e5e51c4cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5073edfcb1c9918bdee8253bd07f7f46ca9eff8eaf67acec9cab1b0e5e51c4cf", kill_on_drop: false }`
[INFO] [stdout] 5073edfcb1c9918bdee8253bd07f7f46ca9eff8eaf67acec9cab1b0e5e51c4cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f666ba050a565c4d6edaa9822ab019f69133c65c09a20d6bea703c8d56f9f722
[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" "f666ba050a565c4d6edaa9822ab019f69133c65c09a20d6bea703c8d56f9f722", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/list_flattener-9d9e41fcc7650b58
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test test_e2e::deep ... ok
[INFO] [stdout] test test_flatter::ascending ... 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::empty_list ... ok
[INFO] [stdout] test test_parser::incomplete_input ... ok
[INFO] [stdout] test test_flatter::single ... ok
[INFO] [stdout] test test_parser::decreasing_nested_list ... ok
[INFO] [stdout] test test_parser::invalid_element ... ok
[INFO] [stdout] test test_parser::increasing_nested_list ... ok
[INFO] [stdout] test test_parser::just_closed ... ok
[INFO] [stdout] test test_parser::linear_list ... ok
[INFO] [stdout] test test_parser::linear_list_trim ... ok
[INFO] [stdout] test test_parser::missing_comma ... ok
[INFO] [stdout] test test_parser::naked_hex_num ... ok
[INFO] [stdout] test test_parser::naked_num ... ok
[INFO] [stdout] test test_parser::tailing_input ... ok
[INFO] [stdout] test test_parser_tools::do_peek ... ok
[INFO] [stdout] test test_parser_tools::do_skip_whitespace ... ok
[INFO] [stdout] test test_parser_tools::incomplete_peek ... 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-5f7d932b5fc12960
[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] [stderr]    Doc-tests list_flattener
[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" "f666ba050a565c4d6edaa9822ab019f69133c65c09a20d6bea703c8d56f9f722", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f666ba050a565c4d6edaa9822ab019f69133c65c09a20d6bea703c8d56f9f722", kill_on_drop: false }`
[INFO] [stdout] f666ba050a565c4d6edaa9822ab019f69133c65c09a20d6bea703c8d56f9f722