[INFO] cloning repository https://github.com/tranzystorek-io/untangle
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tranzystorek-io/untangle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftranzystorek-io%2Funtangle", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftranzystorek-io%2Funtangle'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bb562dfac0201f86c61b1558f24172031964fd71
[INFO] testing tranzystorek-io/untangle against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftranzystorek-io%2Funtangle" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tranzystorek-io/untangle on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tranzystorek-io/untangle
[INFO] finished tweaking git repo https://github.com/tranzystorek-io/untangle
[INFO] tweaked toml for git repo https://github.com/tranzystorek-io/untangle written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/tranzystorek-io/untangle already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded predicates v1.0.6
[INFO] [stderr]   Downloaded predicates-tree v1.0.1
[INFO] [stderr]   Downloaded predicates-core v1.0.1
[INFO] [stderr]   Downloaded assert_cmd v1.0.2
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c9258a05f4e7c7862dd35129d0bb9a1b57a41c00d9d21efa313b55a27c111893
[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" "c9258a05f4e7c7862dd35129d0bb9a1b57a41c00d9d21efa313b55a27c111893", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9258a05f4e7c7862dd35129d0bb9a1b57a41c00d9d21efa313b55a27c111893", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9258a05f4e7c7862dd35129d0bb9a1b57a41c00d9d21efa313b55a27c111893", kill_on_drop: false }`
[INFO] [stdout] c9258a05f4e7c7862dd35129d0bb9a1b57a41c00d9d21efa313b55a27c111893
[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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "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] 34c2aa3a25125a3891f2ebb8203d1a6ec88e604e91f01d65f099087eac62d315
[INFO] running `Command { std: "docker" "start" "-a" "34c2aa3a25125a3891f2ebb8203d1a6ec88e604e91f01d65f099087eac62d315", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling anyhow v1.0.37
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling num-complex v0.3.1
[INFO] [stderr]    Compiling ndarray v0.14.0
[INFO] [stderr]    Compiling strum_macros v0.20.1
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling thiserror v1.0.23
[INFO] [stderr]    Compiling strum v0.20.0
[INFO] [stderr]    Compiling structopt v0.3.21
[INFO] [stderr]    Compiling untangle_solver v0.1.0 (/opt/rustwide/workdir/solver)
[INFO] [stderr]    Compiling untangle v0.1.0 (/opt/rustwide/workdir/cli)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.84s
[INFO] running `Command { std: "docker" "inspect" "34c2aa3a25125a3891f2ebb8203d1a6ec88e604e91f01d65f099087eac62d315", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34c2aa3a25125a3891f2ebb8203d1a6ec88e604e91f01d65f099087eac62d315", kill_on_drop: false }`
[INFO] [stdout] 34c2aa3a25125a3891f2ebb8203d1a6ec88e604e91f01d65f099087eac62d315
[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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e452f8168a0cf97f2dbac73db6e7e801976c888813b176c0b1d9d5fbcc5e644
[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" "9e452f8168a0cf97f2dbac73db6e7e801976c888813b176c0b1d9d5fbcc5e644", kill_on_drop: false }`
[INFO] [stderr]    Compiling predicates-core v1.0.1
[INFO] [stderr]    Compiling difference v2.0.0
[INFO] [stderr]    Compiling treeline v0.1.0
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling untangle_solver v0.1.0 (/opt/rustwide/workdir/solver)
[INFO] [stderr]    Compiling predicates-tree v1.0.1
[INFO] [stderr]    Compiling predicates v1.0.6
[INFO] [stderr]    Compiling assert_cmd v1.0.2
[INFO] [stderr]    Compiling untangle v0.1.0 (/opt/rustwide/workdir/cli)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.89s
[INFO] running `Command { std: "docker" "inspect" "9e452f8168a0cf97f2dbac73db6e7e801976c888813b176c0b1d9d5fbcc5e644", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e452f8168a0cf97f2dbac73db6e7e801976c888813b176c0b1d9d5fbcc5e644", kill_on_drop: false }`
[INFO] [stdout] 9e452f8168a0cf97f2dbac73db6e7e801976c888813b176c0b1d9d5fbcc5e644
[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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d7f20402304889244313c6029d6fb285b85493184028fecfbeb9a4672b6f247c
[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" "d7f20402304889244313c6029d6fb285b85493184028fecfbeb9a4672b6f247c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/untangle-9299803ea89bf910)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/cli_test.rs (/opt/rustwide/target/debug/deps/cli_test-07c6edb86ccb7d1f)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test untangle_fails_on_nonexistent_flag ... ok
[INFO] [stdout] test untangle_succeeds_on_valid_input ... ok
[INFO] [stdout] test untangle_fails_on_fields_number_not_matching_shape ... ok
[INFO] [stdout] test untangle_fails_on_shape_parse_error ... ok
[INFO] [stdout] test untangle_fails_on_field_parse_error ... ok
[INFO] [stdout] test untangle_fails_on_empty_file ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/untangle_solver-11c00e1080d64a0c)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test solve::tests::check_monocolor_fails_on_multicolor_ribbons ... ok
[INFO] [stdout] test solve::tests::check_monocolor_fails_on_empty_ribbons ... ok
[INFO] [stdout] test tests::ribbons_iterates_over_rows_and_columns ... ok
[INFO] [stdout] test solve::tests::check_monocolor_identifies_correct_ribbons ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests untangle_solver
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d7f20402304889244313c6029d6fb285b85493184028fecfbeb9a4672b6f247c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7f20402304889244313c6029d6fb285b85493184028fecfbeb9a4672b6f247c", kill_on_drop: false }`
[INFO] [stdout] d7f20402304889244313c6029d6fb285b85493184028fecfbeb9a4672b6f247c