[INFO] fetching crate ser-write-json 0.4.0...
[INFO] testing ser-write-json-0.4.0 against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739-1
[INFO] extracting crate ser-write-json 0.4.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate ser-write-json 0.4.0
[INFO] finished tweaking crates.io crate ser-write-json 0.4.0
[INFO] tweaked toml for crates.io crate ser-write-json 0.4.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ser-write-json 0.4.0 on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ser-write-json 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 26e81a61d47bb2b5433e5faddfdddadbed39c440e762bb8be9e515423fda2448
[INFO] running `Command { std: "docker" "start" "-a" "26e81a61d47bb2b5433e5faddfdddadbed39c440e762bb8be9e515423fda2448", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26e81a61d47bb2b5433e5faddfdddadbed39c440e762bb8be9e515423fda2448", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26e81a61d47bb2b5433e5faddfdddadbed39c440e762bb8be9e515423fda2448", kill_on_drop: false }`
[INFO] [stdout] 26e81a61d47bb2b5433e5faddfdddadbed39c440e762bb8be9e515423fda2448
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23138f13fc3d1f8c32f07ce5281d5ed5b6923dd23bdde75137645e103513369c
[INFO] running `Command { std: "docker" "start" "-a" "23138f13fc3d1f8c32f07ce5281d5ed5b6923dd23bdde75137645e103513369c", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling ser-write v0.4.0
[INFO] [stderr]    Compiling ryu-js v1.0.2
[INFO] [stderr]    Compiling ser-write-json v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.19s
[INFO] running `Command { std: "docker" "inspect" "23138f13fc3d1f8c32f07ce5281d5ed5b6923dd23bdde75137645e103513369c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23138f13fc3d1f8c32f07ce5281d5ed5b6923dd23bdde75137645e103513369c", kill_on_drop: false }`
[INFO] [stdout] 23138f13fc3d1f8c32f07ce5281d5ed5b6923dd23bdde75137645e103513369c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f5f994aa258396b036bd2fd2e08bea0af6a7030f6e8c6a81f85d4cbed06a705
[INFO] running `Command { std: "docker" "start" "-a" "0f5f994aa258396b036bd2fd2e08bea0af6a7030f6e8c6a81f85d4cbed06a705", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling ser-write-json v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 13.57s
[INFO] running `Command { std: "docker" "inspect" "0f5f994aa258396b036bd2fd2e08bea0af6a7030f6e8c6a81f85d4cbed06a705", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f5f994aa258396b036bd2fd2e08bea0af6a7030f6e8c6a81f85d4cbed06a705", kill_on_drop: false }`
[INFO] [stdout] 0f5f994aa258396b036bd2fd2e08bea0af6a7030f6e8c6a81f85d4cbed06a705
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0d2a3f3be4add285f07fbd7ab325b872aeea360182e12643584abe1ce40754f2
[INFO] running `Command { std: "docker" "start" "-a" "0d2a3f3be4add285f07fbd7ab325b872aeea360182e12643584abe1ce40754f2", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ser_write_json-9a4742c947d0f2e9)
[INFO] [stdout] running 67 tests
[INFO] [stdout] test base64::tests::test_base64_encode ... ok
[INFO] [stdout] test de::tests::test_de_bool ... ok
[INFO] [stdout] test de::tests::test_de_array ... ok
[INFO] [stdout] test de::tests::test_de_bytes_own ... ok
[INFO] [stdout] test de::tests::test_de_error_string ... ok
[INFO] [stdout] test base64::tests::test_base64_decode ... ok
[INFO] [stdout] test de::tests::test_de_char ... ok
[INFO] [stdout] test de::tests::test_de_enum_clike ... ok
[INFO] [stdout] test de::tests::test_de_floating_point ... ok
[INFO] [stdout] test de::tests::test_de_any ... ok
[INFO] [stdout] test de::tests::test_de_ignoring_extra_fields ... ok
[INFO] [stdout] test de::tests::test_de_integer ... ok
[INFO] [stdout] test de::tests::test_de_bytes ... ok
[INFO] [stdout] test de::tests::test_de_map ... ok
[INFO] [stdout] test de::tests::test_de_newtype_struct ... ok
[INFO] [stdout] test de::tests::test_de_newtype_variant ... ok
[INFO] [stdout] test de::tests::test_de_option ... ok
[INFO] [stdout] test de::tests::test_de_map_err ... ok
[INFO] [stdout] test de::tests::test_de_str ... ok
[INFO] [stdout] test de::tests::test_de_string ... ok
[INFO] [stdout] test de::tests::test_de_struct_bool ... ok
[INFO] [stdout] test de::tests::test_de_struct_i8 ... ok
[INFO] [stdout] test de::tests::test_de_struct_option ... ok
[INFO] [stdout] test de::tests::test_de_struct_f32 ... ok
[INFO] [stdout] test de::tests::test_de_struct ... ok
[INFO] [stdout] test de::tests::test_de_struct_tuple ... ok
[INFO] [stdout] test de::tests::test_de_struct_u8 ... ok
[INFO] [stdout] test de::tests::test_de_tuple_variant ... ok
[INFO] [stdout] test de::tests::test_deserializer ... ok
[INFO] [stdout] test de::tests::test_parse_str_content ... ok
[INFO] [stdout] test ser::tests::test_json_enum ... ok
[INFO] [stdout] test ser::tests::test_json_serializer ... ok
[INFO] [stdout] test ser::tests::test_json_string ... ok
[INFO] [stdout] test ser::tests::test_json_bytes_owned ... ok
[INFO] [stdout] test de::tests::test_de_wot ... ok
[INFO] [stdout] test ser::tests::test_json_map ... ok
[INFO] [stdout] test ser::tests::test_json_tuple ... ok
[INFO] [stdout] test ser::tests::test_ser_array ... ok
[INFO] [stdout] test de::tests::test_de_unit ... ok
[INFO] [stdout] test ser::tests::test_json_bytes ... ok
[INFO] [stdout] test ser::tests::test_json_map_err ... ok
[INFO] [stdout] test ser::tests::test_ser_enum ... ok
[INFO] [stdout] test ser::tests::test_json_struct_to_array ... ok
[INFO] [stdout] test ser::tests::test_json_struct ... ok
[INFO] [stdout] test de::tests::test_de_struct_with_array_field ... ok
[INFO] [stdout] test ser::tests::test_ser_error ... ok
[INFO] [stdout] test ser::tests::test_ser_struct_u8 ... ok
[INFO] [stdout] test de::tests::test_de_struct_with_tuple_field ... ok
[INFO] [stdout] test ser::tests::test_ser_newtype_struct ... ok
[INFO] [stdout] test ser::tests::test_ser_newtype_variant ... ok
[INFO] [stdout] test ser::tests::test_ser_serialize_bytes ... ok
[INFO] [stdout] test ser::tests::test_ser_str ... ok
[INFO] [stdout] test ser::tests::test_ser_bool ... ok
[INFO] [stdout] test ser::tests::test_ser_string_collector ... ok
[INFO] [stdout] test ser::tests::test_ser_struct_bool ... ok
[INFO] [stdout] test ser::tests::test_ser_struct_f32 ... ok
[INFO] [stdout] test ser::tests::test_ser_struct_ ... ok
[INFO] [stdout] test ser::tests::test_ser_struct_i8 ... ok
[INFO] [stdout] test ser::tests::test_ser_struct_option ... ok
[INFO] [stdout] test ser::tests::test_ser_error_string ... ok
[INFO] [stdout] test ser::tests::test_ser_tuple ... ok
[INFO] [stdout] test ser::tests::test_ser_tuple_struct ... ok
[INFO] [stdout] test ser::tests::test_ser_tuple_struct_roundtrip ... ok
[INFO] [stdout] test ser::tests::test_ser_struct_variant ... ok
[INFO] [stdout] test ser::tests::test_ser_tuple_variant ... ok
[INFO] [stdout] test ser::tests::test_ser_unit ... ok
[INFO] [stderr]    Doc-tests ser_write_json
[INFO] [stdout] test de::tests::test_de_struct_variant ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 67 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[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" "0d2a3f3be4add285f07fbd7ab325b872aeea360182e12643584abe1ce40754f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d2a3f3be4add285f07fbd7ab325b872aeea360182e12643584abe1ce40754f2", kill_on_drop: false }`
[INFO] [stdout] 0d2a3f3be4add285f07fbd7ab325b872aeea360182e12643584abe1ce40754f2
