[INFO] cloning repository https://github.com/Fancyflame/impl_variadics
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Fancyflame/impl_variadics" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFancyflame%2Fimpl_variadics", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFancyflame%2Fimpl_variadics'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 602c37f53647b4028b8defddd986baee11adc6ba
[INFO] testing Fancyflame/impl_variadics 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%2FFancyflame%2Fimpl_variadics" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Fancyflame/impl_variadics
[INFO] finished tweaking git repo https://github.com/Fancyflame/impl_variadics
[INFO] tweaked toml for git repo https://github.com/Fancyflame/impl_variadics written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Fancyflame/impl_variadics 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/Fancyflame/impl_variadics 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] 72e230871a7e6bcc663d3fcb809decf0aee4599d3cb1003685ddc7dc64759470
[INFO] running `Command { std: "docker" "start" "-a" "72e230871a7e6bcc663d3fcb809decf0aee4599d3cb1003685ddc7dc64759470", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72e230871a7e6bcc663d3fcb809decf0aee4599d3cb1003685ddc7dc64759470", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72e230871a7e6bcc663d3fcb809decf0aee4599d3cb1003685ddc7dc64759470", kill_on_drop: false }`
[INFO] [stdout] 72e230871a7e6bcc663d3fcb809decf0aee4599d3cb1003685ddc7dc64759470
[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] 24a9249618dfc636453498f5bb3f48a97735f16f9449ae5552489479a6d1073d
[INFO] running `Command { std: "docker" "start" "-a" "24a9249618dfc636453498f5bb3f48a97735f16f9449ae5552489479a6d1073d", 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 6.15s
[INFO] running `Command { std: "docker" "inspect" "24a9249618dfc636453498f5bb3f48a97735f16f9449ae5552489479a6d1073d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24a9249618dfc636453498f5bb3f48a97735f16f9449ae5552489479a6d1073d", kill_on_drop: false }`
[INFO] [stdout] 24a9249618dfc636453498f5bb3f48a97735f16f9449ae5552489479a6d1073d
[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] 5a29f1a8f4f789eaa8eeb4bf1bbb3ed3e61e62f38956ed90e8d0392589d2c28e
[INFO] running `Command { std: "docker" "start" "-a" "5a29f1a8f4f789eaa8eeb4bf1bbb3ed3e61e62f38956ed90e8d0392589d2c28e", 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 8.97s
[INFO] running `Command { std: "docker" "inspect" "5a29f1a8f4f789eaa8eeb4bf1bbb3ed3e61e62f38956ed90e8d0392589d2c28e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a29f1a8f4f789eaa8eeb4bf1bbb3ed3e61e62f38956ed90e8d0392589d2c28e", kill_on_drop: false }`
[INFO] [stdout] 5a29f1a8f4f789eaa8eeb4bf1bbb3ed3e61e62f38956ed90e8d0392589d2c28e
[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] f72ddcce8d274e5b0023b5c2366da51172017f6790a1d0932b98bdbca7252294
[INFO] running `Command { std: "docker" "start" "-a" "f72ddcce8d274e5b0023b5c2366da51172017f6790a1d0932b98bdbca7252294", 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/impl_variadics-ace27378a7be7a52)
[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 impl_variadics
[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] 11 | 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]  9 | extern crate r#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] 33 | impl Display for TupleDisplay<()> {
[INFO] [stdout]    |      ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this trait
[INFO] [stdout]    |
[INFO] [stdout] 32 + use std::fmt::Display;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `TupleDisplay` in this scope
[INFO] [stdout]   --> src/lib.rs:33:18
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl Display for TupleDisplay<()> {
[INFO] [stdout]    |                  ^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `Formatter` in this scope
[INFO] [stdout]   --> src/lib.rs:34:28
[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] 32 + 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] 38 | 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] 32 + use std::fmt::Display;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `TupleDisplay` in this scope
[INFO] [stdout]   --> src/lib.rs:38:22
[INFO] [stdout]    |
[INFO] [stdout] 38 | 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] 40 |     T0: Display,
[INFO] [stdout]    |         ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this trait
[INFO] [stdout]    |
[INFO] [stdout] 32 + use std::fmt::Display;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `Formatter` in this scope
[INFO] [stdout]   --> src/lib.rs:42:28
[INFO] [stdout]    |
[INFO] [stdout] 42 |     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] 32 + 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] 47 | 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] 32 + use std::fmt::Display;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `TupleDisplay` in this scope
[INFO] [stdout]   --> src/lib.rs:47:26
[INFO] [stdout]    |
[INFO] [stdout] 47 | 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] 49 |     T0: Display,
[INFO] [stdout]    |         ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this trait
[INFO] [stdout]    |
[INFO] [stdout] 32 + 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] 50 |     T1: Display,
[INFO] [stdout]    |         ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this trait
[INFO] [stdout]    |
[INFO] [stdout] 32 + use std::fmt::Display;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `Formatter` in this scope
[INFO] [stdout]   --> src/lib.rs:52:28
[INFO] [stdout]    |
[INFO] [stdout] 52 |     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] 32 + 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] 58 | 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] 32 + use std::fmt::Display;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `TupleDisplay` in this scope
[INFO] [stdout]   --> src/lib.rs:58:30
[INFO] [stdout]    |
[INFO] [stdout] 58 | 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] 60 |     T0: Display,
[INFO] [stdout]    |         ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this trait
[INFO] [stdout]    |
[INFO] [stdout] 32 + 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] 61 |     T1: Display,
[INFO] [stdout]    |         ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this trait
[INFO] [stdout]    |
[INFO] [stdout] 32 + 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] 62 |     T2: Display,
[INFO] [stdout]    |         ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this trait
[INFO] [stdout]    |
[INFO] [stdout] 32 + use std::fmt::Display;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `Formatter` in this scope
[INFO] [stdout]   --> src/lib.rs:64:28
[INFO] [stdout]    |
[INFO] [stdout] 64 |     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] 32 + 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, E0425.
[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 0.27s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "f72ddcce8d274e5b0023b5c2366da51172017f6790a1d0932b98bdbca7252294", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f72ddcce8d274e5b0023b5c2366da51172017f6790a1d0932b98bdbca7252294", kill_on_drop: false }`
[INFO] [stdout] f72ddcce8d274e5b0023b5c2366da51172017f6790a1d0932b98bdbca7252294
