[INFO] cloning repository https://github.com/bjfssd757/json_serial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bjfssd757/json_serial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbjfssd757%2Fjson_serial", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbjfssd757%2Fjson_serial'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 66ba45f753f29ebfe95c0e5e6fcca5cafbba6a14
[INFO] checking bjfssd757/json_serial against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbjfssd757%2Fjson_serial" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/bjfssd757/json_serial
[INFO] finished tweaking git repo https://github.com/bjfssd757/json_serial
[INFO] tweaked toml for git repo https://github.com/bjfssd757/json_serial written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/bjfssd757/json_serial on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/bjfssd757/json_serial 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d3ad55244a52a662f2d505a91b783ccf9491af1e3b624f7cb1259434e0782175
[INFO] running `Command { std: "docker" "start" "-a" "d3ad55244a52a662f2d505a91b783ccf9491af1e3b624f7cb1259434e0782175", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3ad55244a52a662f2d505a91b783ccf9491af1e3b624f7cb1259434e0782175", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3ad55244a52a662f2d505a91b783ccf9491af1e3b624f7cb1259434e0782175", kill_on_drop: false }`
[INFO] [stdout] d3ad55244a52a662f2d505a91b783ccf9491af1e3b624f7cb1259434e0782175
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d15721c92d87eaa9f27d1de212a9cf38866a13034f566cbb5540b980f533902
[INFO] running `Command { std: "docker" "start" "-a" "9d15721c92d87eaa9f27d1de212a9cf38866a13034f566cbb5540b980f533902", kill_on_drop: false }`
[INFO] [stderr]     Checking json_serial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:43:33
[INFO] [stdout]     |
[INFO] [stdout]  43 |                     let value = kv.next().unwrap().trim().trim_matches('"').parse().unwrap();
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |         impl_from_json!(Address, city: String, street: String, number: u16);
[INFO] [stdout]     |         ------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]     = note: this error originates in the macro `impl_from_json` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:49:38
[INFO] [stdout]     |
[INFO] [stdout]  49 |                           $field_name: map.get(stringify!($field_name))
[INFO] [stdout]     |  ______________________________________^
[INFO] [stdout]  50 | |                             .unwrap().parse::<$field_type>().unwrap(),
[INFO] [stdout]     | |____________________________________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 110 |           impl_from_json!(Address, city: String, street: String, number: u16);
[INFO] [stdout]     |           ------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_from_json` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:43:33
[INFO] [stdout]     |
[INFO] [stdout]  43 |                     let value = kv.next().unwrap().trim().trim_matches('"').parse().unwrap();
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |         impl_from_json!(Person, name: String, age: u8, address: String);
[INFO] [stdout]     |         --------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_from_json` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:49:38
[INFO] [stdout]     |
[INFO] [stdout]  49 |                           $field_name: map.get(stringify!($field_name))
[INFO] [stdout]     |  ______________________________________^
[INFO] [stdout]  50 | |                             .unwrap().parse::<$field_type>().unwrap(),
[INFO] [stdout]     | |____________________________________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 114 |           impl_from_json!(Person, name: String, age: u8, address: String);
[INFO] [stdout]     |           --------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_from_json` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `json_serial` (lib test) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "9d15721c92d87eaa9f27d1de212a9cf38866a13034f566cbb5540b980f533902", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d15721c92d87eaa9f27d1de212a9cf38866a13034f566cbb5540b980f533902", kill_on_drop: false }`
[INFO] [stdout] 9d15721c92d87eaa9f27d1de212a9cf38866a13034f566cbb5540b980f533902