[INFO] fetching crate flats 0.1.0...
[INFO] testing flats-0.1.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate flats 0.1.0 into /workspace/builds/worker-102/source
[INFO] validating manifest of crates.io crate flats 0.1.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flats 0.1.0
[INFO] finished tweaking crates.io crate flats 0.1.0
[INFO] tweaked toml for crates.io crate flats 0.1.0 written to /workspace/builds/worker-102/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--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-102/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-102/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e440253936a4c1dee7168f9692d7e225d95e16e2356d6a5e840cd3f8bf0e22a
[INFO] running `Command { std: "docker" "start" "-a" "7e440253936a4c1dee7168f9692d7e225d95e16e2356d6a5e840cd3f8bf0e22a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e440253936a4c1dee7168f9692d7e225d95e16e2356d6a5e840cd3f8bf0e22a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e440253936a4c1dee7168f9692d7e225d95e16e2356d6a5e840cd3f8bf0e22a", kill_on_drop: false }`
[INFO] [stdout] 7e440253936a4c1dee7168f9692d7e225d95e16e2356d6a5e840cd3f8bf0e22a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-102/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-102/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc395f382dbd05ac8b5a2be4cced4e956adb7ff4e3365e64e05069f2057a90bc
[INFO] running `Command { std: "docker" "start" "-a" "cc395f382dbd05ac8b5a2be4cced4e956adb7ff4e3365e64e05069f2057a90bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling itoa v1.0.1
[INFO] [stderr]    Compiling ryu v1.0.9
[INFO] [stderr]    Compiling flats v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.28s
[INFO] running `Command { std: "docker" "inspect" "cc395f382dbd05ac8b5a2be4cced4e956adb7ff4e3365e64e05069f2057a90bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc395f382dbd05ac8b5a2be4cced4e956adb7ff4e3365e64e05069f2057a90bc", kill_on_drop: false }`
[INFO] [stdout] cc395f382dbd05ac8b5a2be4cced4e956adb7ff4e3365e64e05069f2057a90bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-102/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-102/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd47b05766b090e0d52123d2d381af4ad6211cf4fd682d1ff91739af4a948e7a
[INFO] running `Command { std: "docker" "start" "-a" "cd47b05766b090e0d52123d2d381af4ad6211cf4fd682d1ff91739af4a948e7a", kill_on_drop: false }`
[INFO] [stderr]    Compiling flats v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `Command { std: "docker" "inspect" "cd47b05766b090e0d52123d2d381af4ad6211cf4fd682d1ff91739af4a948e7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd47b05766b090e0d52123d2d381af4ad6211cf4fd682d1ff91739af4a948e7a", kill_on_drop: false }`
[INFO] [stdout] cd47b05766b090e0d52123d2d381af4ad6211cf4fd682d1ff91739af4a948e7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-102/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-102/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 415cddc9e35f9f359294ac23c937b8316affb2543fea08f30f538a4cea6dfe5b
[INFO] running `Command { std: "docker" "start" "-a" "415cddc9e35f9f359294ac23c937b8316affb2543fea08f30f538a4cea6dfe5b", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/flats-06be3c885b884035)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test scalar::tests::bool_display ... ok
[INFO] [stdout] test scalar::tests::number_display ... ok
[INFO] [stdout] test tests::flattens_nested_maps ... ok
[INFO] [stdout] test scalar::tests::null_display ... ok
[INFO] [stderr]    Doc-tests flats
[INFO] [stdout] test tests::flattens_to_serializable ... ok
[INFO] [stdout] test scalar::tests::string_display ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 5) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.55s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "415cddc9e35f9f359294ac23c937b8316affb2543fea08f30f538a4cea6dfe5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "415cddc9e35f9f359294ac23c937b8316affb2543fea08f30f538a4cea6dfe5b", kill_on_drop: false }`
[INFO] [stdout] 415cddc9e35f9f359294ac23c937b8316affb2543fea08f30f538a4cea6dfe5b