[INFO] cloning repository https://github.com/umcconnell/changers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/umcconnell/changers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fumcconnell%2Fchangers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fumcconnell%2Fchangers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9dbd2137be66f91a77c34b4b9ab2d2b45439e9f4
[INFO] testing umcconnell/changers against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fumcconnell%2Fchangers" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/umcconnell/changers 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 git repo https://github.com/umcconnell/changers
[INFO] finished tweaking git repo https://github.com/umcconnell/changers
[INFO] tweaked toml for git repo https://github.com/umcconnell/changers written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/umcconnell/changers already has a lockfile, it will not be regenerated
[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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] ad913593c8bb5e7ba7ffe0baf9e56cbc0926ca0c7a4ae8966085d85fcae2e1e7
[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" "ad913593c8bb5e7ba7ffe0baf9e56cbc0926ca0c7a4ae8966085d85fcae2e1e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad913593c8bb5e7ba7ffe0baf9e56cbc0926ca0c7a4ae8966085d85fcae2e1e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad913593c8bb5e7ba7ffe0baf9e56cbc0926ca0c7a4ae8966085d85fcae2e1e7", kill_on_drop: false }`
[INFO] [stdout] ad913593c8bb5e7ba7ffe0baf9e56cbc0926ca0c7a4ae8966085d85fcae2e1e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 886344e8f19662c1f0aae318de559a862877138b14d07c9f647ad95b0ed57013
[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" "886344e8f19662c1f0aae318de559a862877138b14d07c9f647ad95b0ed57013", kill_on_drop: false }`
[INFO] [stderr]    Compiling changers v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.10s
[INFO] running `Command { std: "docker" "inspect" "886344e8f19662c1f0aae318de559a862877138b14d07c9f647ad95b0ed57013", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "886344e8f19662c1f0aae318de559a862877138b14d07c9f647ad95b0ed57013", kill_on_drop: false }`
[INFO] [stdout] 886344e8f19662c1f0aae318de559a862877138b14d07c9f647ad95b0ed57013
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 430affd2133306cf35bbcd7c4a7c6c9d8d3c083af3dd935d51cd4a3456b522a9
[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" "430affd2133306cf35bbcd7c4a7c6c9d8d3c083af3dd935d51cd4a3456b522a9", kill_on_drop: false }`
[INFO] [stderr]    Compiling changers v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.21s
[INFO] running `Command { std: "docker" "inspect" "430affd2133306cf35bbcd7c4a7c6c9d8d3c083af3dd935d51cd4a3456b522a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "430affd2133306cf35bbcd7c4a7c6c9d8d3c083af3dd935d51cd4a3456b522a9", kill_on_drop: false }`
[INFO] [stdout] 430affd2133306cf35bbcd7c4a7c6c9d8d3c083af3dd935d51cd4a3456b522a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 54b012afcaf9241bdd45871f8ed0d63e1a333afee145f22589a690eb2c3a6ae3
[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" "54b012afcaf9241bdd45871f8ed0d63e1a333afee145f22589a690eb2c3a6ae3", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 9 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/changers-a224999c02eb8b90)
[INFO] [stdout] test logic::change::tests::test_amount_coins_reachable ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/changers-cbd92366d94e0709)
[INFO] [stdout] test logic::coins::tests::test_normalize_unreachable ... ok
[INFO] [stdout] test logic::decimals::tests::test_precision ... ok
[INFO] [stdout] test logic::coins::tests::test_normalize_reachable ... ok
[INFO] [stdout] test logic::decimals::tests::test_round ... ok
[INFO] [stdout] test logic::coins::tests::test_normalize_coins ... ok
[INFO] [stdout] test logic::coins::tests::test_longest_coin ... ok
[INFO] [stdout] test logic::change::tests::test_amount_coins_unreachable ... ok
[INFO] [stdout] test logic::change::tests::test_change_matrix ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/integration_test.rs (/opt/rustwide/target/debug/deps/integration_test-391ae1a5d3b7d2db)
[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] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_change_impossible2 ... ok
[INFO] [stdout] test test_change_impossible ... ok
[INFO] [stderr]    Doc-tests changers
[INFO] [stdout] test test_change_possible ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 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/logic/coins.rs - logic::coins::normalize (line 24) ... ignored
[INFO] [stdout] test src/logic/decimals.rs - logic::decimals::precision (line 18) ... ignored
[INFO] [stdout] test src/logic/decimals.rs - logic::decimals::precision (line 25) ... ignored
[INFO] [stdout] test src/logic/decimals.rs - logic::decimals::round (line 5) ... ignored
[INFO] [stdout] test src/logic/change.rs - logic::change::make_change (line 66) ... ok
[INFO] [stdout] test src/logic/change.rs - logic::change::make_change (line 54) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 4 ignored; 0 measured; 0 filtered out; finished in 0.69s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "54b012afcaf9241bdd45871f8ed0d63e1a333afee145f22589a690eb2c3a6ae3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54b012afcaf9241bdd45871f8ed0d63e1a333afee145f22589a690eb2c3a6ae3", kill_on_drop: false }`
[INFO] [stdout] 54b012afcaf9241bdd45871f8ed0d63e1a333afee145f22589a690eb2c3a6ae3