[INFO] cloning repository https://github.com/rems-project/diffable-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rems-project/diffable-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frems-project%2Fdiffable-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frems-project%2Fdiffable-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e10c8aea60891e13617ed072596037427ad8a3eb
[INFO] testing rems-project/diffable-rs against beta-2026-03-05 for beta-1.95-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frems-project%2Fdiffable-rs" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-4-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/rems-project/diffable-rs
[INFO] finished tweaking git repo https://github.com/rems-project/diffable-rs
[INFO] tweaked toml for git repo https://github.com/rems-project/diffable-rs written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rems-project/diffable-rs 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 git repo https://github.com/rems-project/diffable-rs 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] cdf71e740caed7e68fadec03197a3ff83926185bf7c79601479b6a1408f1dda7
[INFO] running `Command { std: "docker" "start" "-a" "cdf71e740caed7e68fadec03197a3ff83926185bf7c79601479b6a1408f1dda7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cdf71e740caed7e68fadec03197a3ff83926185bf7c79601479b6a1408f1dda7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdf71e740caed7e68fadec03197a3ff83926185bf7c79601479b6a1408f1dda7", kill_on_drop: false }`
[INFO] [stdout] cdf71e740caed7e68fadec03197a3ff83926185bf7c79601479b6a1408f1dda7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 21f4e09a0a521a925eefd1f157a35c8f73a6c3744a39b8163c5ccb5d399973d1
[INFO] running `Command { std: "docker" "start" "-a" "21f4e09a0a521a925eefd1f157a35c8f73a6c3744a39b8163c5ccb5d399973d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.102
[INFO] [stderr]    Compiling diffable-macros v0.1.0 (/opt/rustwide/workdir/diffable-macros)
[INFO] [stderr]    Compiling diffable v0.1.0 (/opt/rustwide/workdir/diffable)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.82s
[INFO] running `Command { std: "docker" "inspect" "21f4e09a0a521a925eefd1f157a35c8f73a6c3744a39b8163c5ccb5d399973d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21f4e09a0a521a925eefd1f157a35c8f73a6c3744a39b8163c5ccb5d399973d1", kill_on_drop: false }`
[INFO] [stdout] 21f4e09a0a521a925eefd1f157a35c8f73a6c3744a39b8163c5ccb5d399973d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 3f9ca882fe403690251f8c825c6237b975eb55f0c9fdd2edc711cfc62207c9c3
[INFO] running `Command { std: "docker" "start" "-a" "3f9ca882fe403690251f8c825c6237b975eb55f0c9fdd2edc711cfc62207c9c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling diffable-macros v0.1.0 (/opt/rustwide/workdir/diffable-macros)
[INFO] [stderr]    Compiling diffable v0.1.0 (/opt/rustwide/workdir/diffable)
[INFO] [stderr]    Compiling examples v0.1.0 (/opt/rustwide/workdir/examples)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.02s
[INFO] running `Command { std: "docker" "inspect" "3f9ca882fe403690251f8c825c6237b975eb55f0c9fdd2edc711cfc62207c9c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f9ca882fe403690251f8c825c6237b975eb55f0c9fdd2edc711cfc62207c9c3", kill_on_drop: false }`
[INFO] [stdout] 3f9ca882fe403690251f8c825c6237b975eb55f0c9fdd2edc711cfc62207c9c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 8fd9352783f08761ff85e6952a1261023b1f864267a884139b49f3fc2cefdbd2
[INFO] running `Command { std: "docker" "start" "-a" "8fd9352783f08761ff85e6952a1261023b1f864267a884139b49f3fc2cefdbd2", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/diffable-70f4959d04d7cb1a)
[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 unittests src/lib.rs (/opt/rustwide/target/debug/deps/diffable_macros-15e5d06765501e8a)
[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]    Doc-tests diffable
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test diffable/src/lib.rs - Diffable (line 40) ... FAILED
[INFO] [stdout] test diffable/src/lib.rs - (line 4) ... FAILED
[INFO] [stdout] test diffable/src/display/mod.rs - display (line 10) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- diffable/src/lib.rs - Diffable (line 40) stdout ----
[INFO] [stdout] error: 1 positional argument in format string, but no arguments were given
[INFO] [stdout]   --> diffable/src/lib.rs:44:30
[INFO] [stdout]    |
[INFO] [stdout] 44 | println!("the difference is: {:?}");
[INFO] [stdout]    |                              ^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `diff` found for reference `&Vec<{integer}>` in the current scope
[INFO] [stdout]   --> diffable/src/lib.rs:43:16
[INFO] [stdout]    |
[INFO] [stdout] 43 | let d = (&bar).diff(&foo);
[INFO] [stdout]    |                ^^^^ method not found in `&Vec<{integer}>`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- diffable/src/lib.rs - (line 4) stdout ----
[INFO] [stdout] error[E0425]: cannot find type `Difference` in this scope
[INFO] [stdout]  --> diffable/src/lib.rs:7:43
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn diff(&'l self, other: &'l Self) -> Difference<&'l Self, Self::Diff>;
[INFO] [stdout]   |                                           ^^^^^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing one of these structs
[INFO] [stdout]   |
[INFO] [stdout] 4 + use std::collections::btree_set::Difference;
[INFO] [stdout]   |
[INFO] [stdout] 4 + use std::collections::hash_set::Difference;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- diffable/src/display/mod.rs - display (line 10) stdout ----
[INFO] [stdout] error: expected identifier, found `-`
[INFO] [stdout]   --> diffable/src/display/mod.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     DiffFoo {
[INFO] [stdout]    |     ------- while parsing this struct
[INFO] [stdout] 13 |         x: 17,
[INFO] [stdout] 14 |            --
[INFO] [stdout]    |            ^ expected identifier
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function, tuple struct or tuple variant `F` in this scope
[INFO] [stdout]   --> diffable/src/display/mod.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | F(
[INFO] [stdout]    | ^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: you might be missing a const parameter
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn main() { #[allow(non_snake_case)] fn _doctest_main_diffable_src_display_mod_rs_10_0<const F: /* Type */>() {
[INFO] [stdout]    |                                                                                       +++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] error[E0422]: cannot find struct, variant or union type `DiffFoo` in this scope
[INFO] [stdout]   --> diffable/src/display/mod.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     DiffFoo {
[INFO] [stdout]    |     ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0422, E0425.
[INFO] [stdout] For more information about an error, try `rustc --explain E0422`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     diffable/src/display/mod.rs - display (line 10)
[INFO] [stdout]     diffable/src/lib.rs - (line 4)
[INFO] [stdout]     diffable/src/lib.rs - Diffable (line 40)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.17s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `-p diffable --doc`
[INFO] running `Command { std: "docker" "inspect" "8fd9352783f08761ff85e6952a1261023b1f864267a884139b49f3fc2cefdbd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fd9352783f08761ff85e6952a1261023b1f864267a884139b49f3fc2cefdbd2", kill_on_drop: false }`
[INFO] [stdout] 8fd9352783f08761ff85e6952a1261023b1f864267a884139b49f3fc2cefdbd2
