[INFO] fetching crate mcnbt 2.0.0...
[INFO] testing mcnbt-2.0.0 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate mcnbt 2.0.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate mcnbt 2.0.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate mcnbt 2.0.0
[INFO] tweaked toml for crates.io crate mcnbt 2.0.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mcnbt 2.0.0 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mcnbt 2.0.0 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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b2a2804338e5f674d042252fac89aca14656d9de9252e7fba78281df9d351318
[INFO] running `Command { std: "docker" "start" "-a" "b2a2804338e5f674d042252fac89aca14656d9de9252e7fba78281df9d351318", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b2a2804338e5f674d042252fac89aca14656d9de9252e7fba78281df9d351318", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2a2804338e5f674d042252fac89aca14656d9de9252e7fba78281df9d351318", kill_on_drop: false }`
[INFO] [stdout] b2a2804338e5f674d042252fac89aca14656d9de9252e7fba78281df9d351318
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8dff64b98e7d04e10c3f91059509ccd1c985c1c6ac3bc03edf7148f0b1b1dff2
[INFO] running `Command { std: "docker" "start" "-a" "8dff64b98e7d04e10c3f91059509ccd1c985c1c6ac3bc03edf7148f0b1b1dff2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]    Compiling residua-cesu8 v2.0.0
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling residua-mutf8 v2.0.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling mcnbt v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.90s
[INFO] running `Command { std: "docker" "inspect" "8dff64b98e7d04e10c3f91059509ccd1c985c1c6ac3bc03edf7148f0b1b1dff2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8dff64b98e7d04e10c3f91059509ccd1c985c1c6ac3bc03edf7148f0b1b1dff2", kill_on_drop: false }`
[INFO] [stdout] 8dff64b98e7d04e10c3f91059509ccd1c985c1c6ac3bc03edf7148f0b1b1dff2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 083f30a21c8223d41a7de763fb141ebe5eb9dc65cd55e1ece0c279bd6f0f2e26
[INFO] running `Command { std: "docker" "start" "-a" "083f30a21c8223d41a7de763fb141ebe5eb9dc65cd55e1ece0c279bd6f0f2e26", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.215
[INFO] [stderr]    Compiling serde_json v1.0.133
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling indexmap v2.7.0
[INFO] [stderr]    Compiling mcnbt v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 6.99s
[INFO] running `Command { std: "docker" "inspect" "083f30a21c8223d41a7de763fb141ebe5eb9dc65cd55e1ece0c279bd6f0f2e26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "083f30a21c8223d41a7de763fb141ebe5eb9dc65cd55e1ece0c279bd6f0f2e26", kill_on_drop: false }`
[INFO] [stdout] 083f30a21c8223d41a7de763fb141ebe5eb9dc65cd55e1ece0c279bd6f0f2e26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fb6cc4c8fd846b3e4b433e4802d7d21321004306a3634d9d310d7d376de2a538
[INFO] running `Command { std: "docker" "start" "-a" "fb6cc4c8fd846b3e4b433e4802d7d21321004306a3634d9d310d7d376de2a538", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mcnbt-5979659c773e3fa2)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test parser::test::byte ... ok
[INFO] [stdout] test parser::test::empty_list ... ok
[INFO] [stdout] test parser::test::float ... ok
[INFO] [stdout] test parser::test::double ... ok
[INFO] [stdout] test parser::test::long ... ok
[INFO] [stdout] test parser::test::int_array ... ok
[INFO] [stdout] test parser::test::list ... ok
[INFO] [stdout] test parser::test::compound ... ok
[INFO] [stdout] test parser::test::int ... ok
[INFO] [stdout] test parser::test::short ... ok
[INFO] [stdout] test parser::test::long_array ... ok
[INFO] [stdout] test parser::test::string ... ok
[INFO] [stdout] test parser::test::byte_array ... ok
[INFO] [stderr]    Doc-tests mcnbt
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test src/lib.rs - (line 91) ... FAILED
[INFO] [stdout] test src/tag.rs - tag::long_array (line 944) ... ok
[INFO] [stdout] test src/tag.rs - tag::int (line 592) ... ok
[INFO] [stdout] test src/tag.rs - tag::Tag::name (line 153) ... ok
[INFO] [stdout] test src/tag.rs - tag::byte_array (line 704) ... ok
[INFO] [stdout] test src/tag.rs - tag::compound (line 862) ... ok
[INFO] [stdout] test src/tag.rs - tag::list (line 760) ... ok
[INFO] [stdout] test src/tag.rs - tag::byte (line 536) ... ok
[INFO] [stdout] test src/tag.rs - tag::long (line 620) ... ok
[INFO] [stdout] test src/tag.rs - tag::int_array (line 916) ... ok
[INFO] [stdout] test src/lib.rs - (line 33) ... ok
[INFO] [stdout] test src/tag.rs - tag::list (line 790) ... ok
[INFO] [stdout] test src/lib.rs - (line 21) ... ok
[INFO] [stdout] test src/tag.rs - tag::short (line 564) ... ok
[INFO] [stdout] test src/tag.rs - tag::float (line 648) ... ok
[INFO] [stdout] test src/tag.rs - tag::double (line 676) ... ok
[INFO] [stdout] test src/tag.rs - tag::nbt (line 508) ... ok
[INFO] [stdout] test src/tag.rs - tag::string (line 732) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 91) stdout ----
[INFO] [stdout] error[E0277]: the trait bound `Tag: serde::ser::Serialize` is not satisfied
[INFO] [stdout]     --> src/lib.rs:115:27
[INFO] [stdout]      |
[INFO] [stdout]   27 |     serde_json::to_string(&data).unwrap(),
[INFO] [stdout]      |     --------------------- ^^^^^ the trait `serde::ser::Serialize` is not implemented for `Tag`
[INFO] [stdout]      |     |
[INFO] [stdout]      |     required by a bound introduced by this call
[INFO] [stdout]      |
[INFO] [stdout]      = note: for local types consider adding `#[derive(serde::Serialize)]` to your `Tag` type
[INFO] [stdout]      = note: for types from other crates check whether the crate offers a `serde` feature flag
[INFO] [stdout]      = help: the following other types implement trait `serde::ser::Serialize`:
[INFO] [stdout]                &'a T
[INFO] [stdout]                &'a mut T
[INFO] [stdout]                ()
[INFO] [stdout]                (T,)
[INFO] [stdout]                (T0, T1)
[INFO] [stdout]                (T0, T1, T2)
[INFO] [stdout]                (T0, T1, T2, T3)
[INFO] [stdout]                (T0, T1, T2, T3, T4)
[INFO] [stdout]              and 131 others
[INFO] [stdout] note: required by a bound in `serde_json::to_string`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/serde_json-1.0.133/src/ser.rs:2211:17
[INFO] [stdout]      |
[INFO] [stdout] 2209 | pub fn to_string<T>(value: &T) -> Result<String>
[INFO] [stdout]      |        --------- required by a bound in this function
[INFO] [stdout] 2210 | where
[INFO] [stdout] 2211 |     T: ?Sized + Serialize,
[INFO] [stdout]      |                 ^^^^^^^^^ required by this bound in `to_string`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 91)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 17 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.26s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "fb6cc4c8fd846b3e4b433e4802d7d21321004306a3634d9d310d7d376de2a538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb6cc4c8fd846b3e4b433e4802d7d21321004306a3634d9d310d7d376de2a538", kill_on_drop: false }`
[INFO] [stdout] fb6cc4c8fd846b3e4b433e4802d7d21321004306a3634d9d310d7d376de2a538