[INFO] fetching crate serde_fs 0.2.0...
[INFO] testing serde_fs-0.2.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate serde_fs 0.2.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate serde_fs 0.2.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_fs 0.2.0
[INFO] finished tweaking crates.io crate serde_fs 0.2.0
[INFO] tweaked toml for crates.io crate serde_fs 0.2.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "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" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] aa0c91a78568bb13c223e8a6eaf8740ec1942c2fee3fb870bba3c85eda7584af
[INFO] running `Command { std: "docker" "start" "-a" "aa0c91a78568bb13c223e8a6eaf8740ec1942c2fee3fb870bba3c85eda7584af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa0c91a78568bb13c223e8a6eaf8740ec1942c2fee3fb870bba3c85eda7584af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa0c91a78568bb13c223e8a6eaf8740ec1942c2fee3fb870bba3c85eda7584af", kill_on_drop: false }`
[INFO] [stdout] aa0c91a78568bb13c223e8a6eaf8740ec1942c2fee3fb870bba3c85eda7584af
[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" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f43f74b51dee027d7479be774ce8fef5312dfe6cb8d5834e5e5b64ab55e7ff8d
[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" "f43f74b51dee027d7479be774ce8fef5312dfe6cb8d5834e5e5b64ab55e7ff8d", kill_on_drop: false }`
[INFO] [stderr]    Compiling case v0.1.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling derive-error v0.0.4
[INFO] [stderr]    Compiling serde_fs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/de.rs:323:14
[INFO] [stdout]     |
[INFO] [stdout] 323 |     dir: Box<Iterator<Item = Result<String, io::Error>>>,
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Result<String, io::Error>>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.69s
[INFO] running `Command { std: "docker" "inspect" "f43f74b51dee027d7479be774ce8fef5312dfe6cb8d5834e5e5b64ab55e7ff8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f43f74b51dee027d7479be774ce8fef5312dfe6cb8d5834e5e5b64ab55e7ff8d", kill_on_drop: false }`
[INFO] [stdout] f43f74b51dee027d7479be774ce8fef5312dfe6cb8d5834e5e5b64ab55e7ff8d
[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" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5380dc24fd849b0e135161207f20b5f65fe0d2e0cb0e4295656982eaa230fee
[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" "f5380dc24fd849b0e135161207f20b5f65fe0d2e0cb0e4295656982eaa230fee", kill_on_drop: false }`
[INFO] [stderr]    Compiling assert_matches v1.4.0
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/de.rs:323:14
[INFO] [stdout]     |
[INFO] [stdout] 323 |     dir: Box<Iterator<Item = Result<String, io::Error>>>,
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Result<String, io::Error>>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_fs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/de.rs:323:14
[INFO] [stdout]     |
[INFO] [stdout] 323 |     dir: Box<Iterator<Item = Result<String, io::Error>>>,
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Result<String, io::Error>>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.23s
[INFO] running `Command { std: "docker" "inspect" "f5380dc24fd849b0e135161207f20b5f65fe0d2e0cb0e4295656982eaa230fee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5380dc24fd849b0e135161207f20b5f65fe0d2e0cb0e4295656982eaa230fee", kill_on_drop: false }`
[INFO] [stdout] f5380dc24fd849b0e135161207f20b5f65fe0d2e0cb0e4295656982eaa230fee
[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" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 74cbff88efd2c4cddf088db2c9af9a5d0c2eb83cf6db0539befc3c94d70d8a52
[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" "74cbff88efd2c4cddf088db2c9af9a5d0c2eb83cf6db0539befc3c94d70d8a52", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/de.rs:323:14
[INFO] [stderr]     |
[INFO] [stderr] 323 |     dir: Box<Iterator<Item = Result<String, io::Error>>>,
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Result<String, io::Error>>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/de.rs:323:14
[INFO] [stderr]     |
[INFO] [stderr] 323 |     dir: Box<Iterator<Item = Result<String, io::Error>>>,
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Result<String, io::Error>>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.47s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/serde_fs-eb893163315bb31b
[INFO] [stdout] 
[INFO] [stdout] running 66 tests
[INFO] [stdout] test de::tests::char ... ok
[INFO] [stdout] test de::tests::boolean_extra_space ... ok
[INFO] [stdout] test de::tests::char_empty ... ok
[INFO] [stdout] test de::tests::newtype_struct ... ok
[INFO] [stdout] test de::tests::newtype_tuple_variant ... ok
[INFO] [stdout] test de::tests::newtype_variant ... ok
[INFO] [stdout] test de::tests::map ... ok
[INFO] [stdout] test de::tests::option ... ok
[INFO] [stdout] test de::tests::seq ... ok
[INFO] [stdout] test de::tests::string ... ok
[INFO] [stdout] test de::tests::numbers_extra_space ... ok
[INFO] [stdout] test de::tests::seq_complex_elem ... ok
[INFO] [stdout] test de::tests::tuple_newtype_variant_tag ... ok
[INFO] [stdout] test de::tests::tuple ... ok
[INFO] [stdout] test de::tests::struct_variant ... ok
[INFO] [stdout] test de::tests::struct_variant_tag_content ... ok
[INFO] [stdout] test de::tests::struct_variant_tag_internal ... ok
[INFO] [stdout] test de::tests::structure ... ok
[INFO] [stdout] test de::tests::boolean ... ok
[INFO] [stdout] test de::tests::tuple_struct ... ok
[INFO] [stdout] test de::tests::structure_extra ... ok
[INFO] [stdout] test de::tests::tuple_type_mismatch ... ok
[INFO] [stdout] test de::tests::unit ... ok
[INFO] [stdout] test de::tests::unit_struct ... ok
[INFO] [stdout] test de::tests::tuple_variant ... ok
[INFO] [stdout] test de::tests::unit_not_found ... ok
[INFO] [stdout] test de::tests::tuple_struct_type_mismatch ... ok
[INFO] [stdout] test de::tests::unit_variant ... ok
[INFO] [stdout] test de::tests::tuple_size_mismatch ... ok
[INFO] [stdout] test de::tests::numbers ... ok
[INFO] [stdout] test de::tests::tuple_struct_size_mismatch ... ok
[INFO] [stdout] test de::tests::bytes ... ok
[INFO] [stdout] test ser::tests::bytes ... ok
[INFO] [stdout] test ser::tests::map_keep_aux_files ... ok
[INFO] [stdout] test de::tests::tuple_newtype_variant ... ok
[INFO] [stdout] test ser::tests::newtype_struct ... ok
[INFO] [stdout] test ser::tests::char ... ok
[INFO] [stdout] test de::tests::unit_wrong_variant ... ok
[INFO] [stdout] test ser::tests::map_invalid_key ... ok
[INFO] [stdout] test ser::tests::map ... ok
[INFO] [stdout] test ser::tests::boolean ... ok
[INFO] [stdout] test ser::tests::option ... ok
[INFO] [stdout] test ser::tests::struct_variant_tag ... ok
[INFO] [stdout] test ser::tests::string ... ok
[INFO] [stdout] test ser::tests::structure ... ok
[INFO] [stdout] test ser::tests::tuple ... ok
[INFO] [stdout] test ser::tests::tuple_newtype_variant ... ok
[INFO] [stdout] test ser::tests::seq_keep_aux_files ... ok
[INFO] [stdout] test ser::tests::seq_empty ... ok
[INFO] [stdout] test ser::tests::tuple_struct ... ok
[INFO] [stdout] test ser::tests::seq ... ok
[INFO] [stdout] test ser::tests::unit ... ok
[INFO] [stdout] test ser::tests::tuple_newtype_variant_keep_aux_files ... ok
[INFO] [stdout] test ser::tests::struct_variant_tag_content ... ok
[INFO] [stdout] test ser::tests::tuple_newtype_variant_tag ... ok
[INFO] [stdout] test ser::tests::unit_struct ... ok
[INFO] [stdout] test ser::tests::newtype_tuple_variant ... ok
[INFO] [stdout] test ser::tests::map_extra ... ok
[INFO] [stdout] test ser::tests::numbers ... ok
[INFO] [stdout] test ser::tests::newtype_variant ... ok
[INFO] [stdout] test ser::tests::unit_variant ... ok
[INFO] [stdout] test ser::tests::seq_shrink ... ok
[INFO] [stdout] test ser::tests::structure_keep_aux_files ... ok
[INFO] [stderr]    Doc-tests serde_fs
[INFO] [stdout] test ser::tests::tuple_variant ... ok
[INFO] [stdout] test ser::tests::struct_variant ... ok
[INFO] [stdout] test de::tests::struct_variant_tag ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 66 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.17s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - from_fs (line 56) ... ok
[INFO] [stdout] test src/lib.rs - to_fs (line 22) ... ok
[INFO] [stdout] test src/lib.rs - from_fs_in_place (line 85) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.99s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "74cbff88efd2c4cddf088db2c9af9a5d0c2eb83cf6db0539befc3c94d70d8a52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74cbff88efd2c4cddf088db2c9af9a5d0c2eb83cf6db0539befc3c94d70d8a52", kill_on_drop: false }`
[INFO] [stdout] 74cbff88efd2c4cddf088db2c9af9a5d0c2eb83cf6db0539befc3c94d70d8a52