[INFO] fetching crate diffogus 0.4.0...
[INFO] testing diffogus-0.4.0 against beta-2026-03-05 for beta-1.95-1
[INFO] extracting crate diffogus 0.4.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate diffogus 0.4.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate diffogus 0.4.0
[INFO] tweaked toml for crates.io crate diffogus 0.4.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate diffogus 0.4.0 on toolchain beta-2026-03-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate diffogus 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" "+beta-2026-03-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+beta-2026-03-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ab3d3cc4255ac55e97263ade9ecc1f94eaf91d2934f3ea5a5ed502c456ec81bb
[INFO] running `Command { std: "docker" "start" "-a" "ab3d3cc4255ac55e97263ade9ecc1f94eaf91d2934f3ea5a5ed502c456ec81bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab3d3cc4255ac55e97263ade9ecc1f94eaf91d2934f3ea5a5ed502c456ec81bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab3d3cc4255ac55e97263ade9ecc1f94eaf91d2934f3ea5a5ed502c456ec81bb", kill_on_drop: false }`
[INFO] [stdout] ab3d3cc4255ac55e97263ade9ecc1f94eaf91d2934f3ea5a5ed502c456ec81bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f326ccfaa141069f5fefc7aad883e82cb6d4848bb3671e85720aaeb10cc135d
[INFO] running `Command { std: "docker" "start" "-a" "5f326ccfaa141069f5fefc7aad883e82cb6d4848bb3671e85720aaeb10cc135d", kill_on_drop: false }`
[INFO] [stderr]    Compiling diffogus v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "5f326ccfaa141069f5fefc7aad883e82cb6d4848bb3671e85720aaeb10cc135d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f326ccfaa141069f5fefc7aad883e82cb6d4848bb3671e85720aaeb10cc135d", kill_on_drop: false }`
[INFO] [stdout] 5f326ccfaa141069f5fefc7aad883e82cb6d4848bb3671e85720aaeb10cc135d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0eea58f8a6e0b096634d3ea24453d2ac4c8b1eb6b64739aa2b215895cc1e980d
[INFO] running `Command { std: "docker" "start" "-a" "0eea58f8a6e0b096634d3ea24453d2ac4c8b1eb6b64739aa2b215895cc1e980d", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling serde_json v1.0.132
[INFO] [stderr]    Compiling diffogus v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 5.39s
[INFO] running `Command { std: "docker" "inspect" "0eea58f8a6e0b096634d3ea24453d2ac4c8b1eb6b64739aa2b215895cc1e980d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0eea58f8a6e0b096634d3ea24453d2ac4c8b1eb6b64739aa2b215895cc1e980d", kill_on_drop: false }`
[INFO] [stdout] 0eea58f8a6e0b096634d3ea24453d2ac4c8b1eb6b64739aa2b215895cc1e980d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a444ff1342f201a25c3762d8073295a5bfa0d20b2b38ddf12bf9ffd4301d2958
[INFO] running `Command { std: "docker" "start" "-a" "a444ff1342f201a25c3762d8073295a5bfa0d20b2b38ddf12bf9ffd4301d2958", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/diffogus-3f866d020416271e)
[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] [stderr]      Running tests/diff.rs (/opt/rustwide/target/debug/deps/diff-914b09adfa4c7fa2)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::test_string_diff ... ok
[INFO] [stdout] test tests::test_vec_diff ... ok
[INFO] [stdout] test tests::test_primitive_diff ... ok
[INFO] [stdout] test tests::test_option_diff ... ok
[INFO] [stdout] test tests::test_hashmap_diff ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests diffogus
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - (line 102) - compile ... FAILED
[INFO] [stdout] test src/lib.rs - (line 130) - compile ... FAILED
[INFO] [stdout] test src/lib.rs - (line 45) ... ok
[INFO] [stdout] test src/lib.rs - (line 66) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 102) stdout ----
[INFO] [stdout] error[E0277]: the trait bound `HashMapDiff<std::string::String, {integer}>: serde::ser::Serialize` is not satisfied
[INFO] [stdout]     --> src/lib.rs:115:40
[INFO] [stdout]      |
[INFO] [stdout]  115 | let serialized = serde_json::to_string(&diff).unwrap();
[INFO] [stdout]      |                  --------------------- ^^^^^ the trait `serde::ser::Serialize` is not implemented for `HashMapDiff<std::string::String, {integer}>`
[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 `HashMapDiff<std::string::String, {integer}>` 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-1.0.132/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] ---- src/lib.rs - (line 130) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `diffogus_derive`
[INFO] [stdout]    --> src/lib.rs:133:5
[INFO] [stdout]     |
[INFO] [stdout] 133 | use diffogus_derive::Diff;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `diffogus_derive`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `diffogus_derive`, use `cargo add diffogus_derive` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `diff` found for struct `MyStruct` in the current scope
[INFO] [stdout]    --> src/lib.rs:144:14
[INFO] [stdout]     |
[INFO] [stdout] 136 | struct MyStruct {
[INFO] [stdout]     | --------------- method `diff` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 144 | let diff = a.diff(&b);
[INFO] [stdout]     |              ^^^^ method not found in `MyStruct`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]     = note: the following trait defines an item `diff`, perhaps you need to implement it:
[INFO] [stdout]             candidate #1: `Diffable`
[INFO] [stdout] help: some of the expressions' fields have a method of the same name
[INFO] [stdout]     |
[INFO] [stdout] 144 | let diff = a.id.diff(&b);
[INFO] [stdout]     |              +++
[INFO] [stdout] 144 | let diff = a.name.diff(&b);
[INFO] [stdout]     |              +++++
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 102)
[INFO] [stdout]     src/lib.rs - (line 130)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 2 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.66s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "a444ff1342f201a25c3762d8073295a5bfa0d20b2b38ddf12bf9ffd4301d2958", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a444ff1342f201a25c3762d8073295a5bfa0d20b2b38ddf12bf9ffd4301d2958", kill_on_drop: false }`
[INFO] [stdout] a444ff1342f201a25c3762d8073295a5bfa0d20b2b38ddf12bf9ffd4301d2958
