[INFO] fetching crate impl_variadics 0.3.0...
[INFO] testing impl_variadics-0.3.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate impl_variadics 0.3.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate impl_variadics 0.3.0
[INFO] finished tweaking crates.io crate impl_variadics 0.3.0
[INFO] tweaked toml for crates.io crate impl_variadics 0.3.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate impl_variadics 0.3.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate impl_variadics 0.3.0 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-2025-09-21" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 44eaa8ac41fc27e0e05209a1ac0e6ddb392effdeb34b81c010c3bbfa4a2fafdc
[INFO] running `Command { std: "docker" "start" "-a" "44eaa8ac41fc27e0e05209a1ac0e6ddb392effdeb34b81c010c3bbfa4a2fafdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44eaa8ac41fc27e0e05209a1ac0e6ddb392effdeb34b81c010c3bbfa4a2fafdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44eaa8ac41fc27e0e05209a1ac0e6ddb392effdeb34b81c010c3bbfa4a2fafdc", kill_on_drop: false }`
[INFO] [stdout] 44eaa8ac41fc27e0e05209a1ac0e6ddb392effdeb34b81c010c3bbfa4a2fafdc
[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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9265bbedaa029a3754fbd55d25a621aa49646985e9af25fa2e589246fd1cb5e7
[INFO] running `Command { std: "docker" "start" "-a" "9265bbedaa029a3754fbd55d25a621aa49646985e9af25fa2e589246fd1cb5e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.53
[INFO] [stderr]    Compiling impl_variadics v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.94s
[INFO] running `Command { std: "docker" "inspect" "9265bbedaa029a3754fbd55d25a621aa49646985e9af25fa2e589246fd1cb5e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9265bbedaa029a3754fbd55d25a621aa49646985e9af25fa2e589246fd1cb5e7", kill_on_drop: false }`
[INFO] [stdout] 9265bbedaa029a3754fbd55d25a621aa49646985e9af25fa2e589246fd1cb5e7
[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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c4e67e602bd5c00e26744f4ad54b4f3e1b9fe694867b9f61b68130ffee39eda
[INFO] running `Command { std: "docker" "start" "-a" "1c4e67e602bd5c00e26744f4ad54b4f3e1b9fe694867b9f61b68130ffee39eda", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.53
[INFO] [stderr]    Compiling impl_variadics v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 5.34s
[INFO] running `Command { std: "docker" "inspect" "1c4e67e602bd5c00e26744f4ad54b4f3e1b9fe694867b9f61b68130ffee39eda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c4e67e602bd5c00e26744f4ad54b4f3e1b9fe694867b9f61b68130ffee39eda", kill_on_drop: false }`
[INFO] [stdout] 1c4e67e602bd5c00e26744f4ad54b4f3e1b9fe694867b9f61b68130ffee39eda
[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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3a3788ba8dbd2b5f81ad23a0059a06dd645b620817b2656b8c7a56441de5ca27
[INFO] running `Command { std: "docker" "start" "-a" "3a3788ba8dbd2b5f81ad23a0059a06dd645b620817b2656b8c7a56441de5ca27", 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/impl_variadics-3f8a8965c3a76fc3)
[INFO] [stderr]    Doc-tests impl_variadics
[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] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 9) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 32) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 9) stdout ----
[INFO] [stdout] error: cannot find macro `impl_variadics` in this scope
[INFO] [stdout]  --> src/lib.rs:11:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl_variadics! {
[INFO] [stdout]   | ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `impl_variadics` is imported here, but it is a crate, not a macro
[INFO] [stdout]  --> src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate r#impl_variadics;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]   |
[INFO] [stdout] 2 + use impl_variadics::impl_variadics;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 32) stdout ----
[INFO] [stdout] error[E0405]: cannot find trait `Display` in this scope
[INFO] [stdout]  --> src/lib.rs:33:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Display for TupleDisplay<()> {
[INFO] [stdout]   |      ^^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this trait
[INFO] [stdout]   |
[INFO] [stdout] 2 + use std::fmt::Display;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `TupleDisplay` in this scope
[INFO] [stdout]  --> src/lib.rs:33:18
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Display for TupleDisplay<()> {
[INFO] [stdout]   |                  ^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Formatter` in this scope
[INFO] [stdout]  --> src/lib.rs:34:28
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fn fmt(&self, _f: &mut Formatter) -> Result {
[INFO] [stdout]   |                            ^^^^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 2 + use std::fmt::Formatter;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Display` in this scope
[INFO] [stdout]  --> src/lib.rs:38:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | impl<T0> Display for TupleDisplay<(T0,)>
[INFO] [stdout]   |          ^^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this trait
[INFO] [stdout]   |
[INFO] [stdout] 2 + use std::fmt::Display;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `TupleDisplay` in this scope
[INFO] [stdout]  --> src/lib.rs:38:22
[INFO] [stdout]   |
[INFO] [stdout] 8 | impl<T0> Display for TupleDisplay<(T0,)>
[INFO] [stdout]   |                      ^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Display` in this scope
[INFO] [stdout]   --> src/lib.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     T0: Display,
[INFO] [stdout]    |         ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this trait
[INFO] [stdout]    |
[INFO] [stdout]  2 + use std::fmt::Display;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Formatter` in this scope
[INFO] [stdout]   --> src/lib.rs:42:28
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn fmt(&self, _f: &mut Formatter) -> Result {
[INFO] [stdout]    |                            ^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout]  2 + use std::fmt::Formatter;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Display` in this scope
[INFO] [stdout]   --> src/lib.rs:47:14
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl<T0, T1> Display for TupleDisplay<(T0, T1)>
[INFO] [stdout]    |              ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this trait
[INFO] [stdout]    |
[INFO] [stdout]  2 + use std::fmt::Display;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `TupleDisplay` in this scope
[INFO] [stdout]   --> src/lib.rs:47:26
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl<T0, T1> Display for TupleDisplay<(T0, T1)>
[INFO] [stdout]    |                          ^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Display` in this scope
[INFO] [stdout]   --> src/lib.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     T0: Display,
[INFO] [stdout]    |         ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this trait
[INFO] [stdout]    |
[INFO] [stdout]  2 + use std::fmt::Display;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Display` in this scope
[INFO] [stdout]   --> src/lib.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     T1: Display,
[INFO] [stdout]    |         ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this trait
[INFO] [stdout]    |
[INFO] [stdout]  2 + use std::fmt::Display;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Formatter` in this scope
[INFO] [stdout]   --> src/lib.rs:52:28
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn fmt(&self, _f: &mut Formatter) -> Result {
[INFO] [stdout]    |                            ^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout]  2 + use std::fmt::Formatter;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Display` in this scope
[INFO] [stdout]   --> src/lib.rs:58:18
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl<T0, T1, T2> Display for TupleDisplay<(T0, T1, T2)>
[INFO] [stdout]    |                  ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this trait
[INFO] [stdout]    |
[INFO] [stdout]  2 + use std::fmt::Display;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `TupleDisplay` in this scope
[INFO] [stdout]   --> src/lib.rs:58:30
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl<T0, T1, T2> Display for TupleDisplay<(T0, T1, T2)>
[INFO] [stdout]    |                              ^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Display` in this scope
[INFO] [stdout]   --> src/lib.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     T0: Display,
[INFO] [stdout]    |         ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this trait
[INFO] [stdout]    |
[INFO] [stdout]  2 + use std::fmt::Display;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Display` in this scope
[INFO] [stdout]   --> src/lib.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     T1: Display,
[INFO] [stdout]    |         ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this trait
[INFO] [stdout]    |
[INFO] [stdout]  2 + use std::fmt::Display;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Display` in this scope
[INFO] [stdout]   --> src/lib.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     T2: Display,
[INFO] [stdout]    |         ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this trait
[INFO] [stdout]    |
[INFO] [stdout]  2 + use std::fmt::Display;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Formatter` in this scope
[INFO] [stdout]   --> src/lib.rs:64:28
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn fmt(&self, _f: &mut Formatter) -> Result {
[INFO] [stdout]    |                            ^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout]  2 + use std::fmt::Formatter;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 18 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0412.
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 32)
[INFO] [stdout]     src/lib.rs - (line 9)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "3a3788ba8dbd2b5f81ad23a0059a06dd645b620817b2656b8c7a56441de5ca27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a3788ba8dbd2b5f81ad23a0059a06dd645b620817b2656b8c7a56441de5ca27", kill_on_drop: false }`
[INFO] [stdout] 3a3788ba8dbd2b5f81ad23a0059a06dd645b620817b2656b8c7a56441de5ca27