[INFO] fetching crate convertable 0.1.1...
[INFO] testing convertable-0.1.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate convertable 0.1.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate convertable 0.1.1
[INFO] finished tweaking crates.io crate convertable 0.1.1
[INFO] tweaked toml for crates.io crate convertable 0.1.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate convertable 0.1.1 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-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" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0dd359a8bb8b318178d403488f9d147842fdcd48ddb37a91a67363ce2bd4e6fc
[INFO] running `Command { std: "docker" "start" "-a" "0dd359a8bb8b318178d403488f9d147842fdcd48ddb37a91a67363ce2bd4e6fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0dd359a8bb8b318178d403488f9d147842fdcd48ddb37a91a67363ce2bd4e6fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dd359a8bb8b318178d403488f9d147842fdcd48ddb37a91a67363ce2bd4e6fc", kill_on_drop: false }`
[INFO] [stdout] 0dd359a8bb8b318178d403488f9d147842fdcd48ddb37a91a67363ce2bd4e6fc
[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=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] 65149a8c50263107fb08d9d11e17ce644a332dcffb737fabfb323ca1f386854b
[INFO] running `Command { std: "docker" "start" "-a" "65149a8c50263107fb08d9d11e17ce644a332dcffb737fabfb323ca1f386854b", kill_on_drop: false }`
[INFO] [stderr]    Compiling convertable v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "65149a8c50263107fb08d9d11e17ce644a332dcffb737fabfb323ca1f386854b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65149a8c50263107fb08d9d11e17ce644a332dcffb737fabfb323ca1f386854b", kill_on_drop: false }`
[INFO] [stdout] 65149a8c50263107fb08d9d11e17ce644a332dcffb737fabfb323ca1f386854b
[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=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] a0ce77fc3f303f7a5ca947ac14d261c47dc5c4935c748ae037540ead1177142b
[INFO] running `Command { std: "docker" "start" "-a" "a0ce77fc3f303f7a5ca947ac14d261c47dc5c4935c748ae037540ead1177142b", kill_on_drop: false }`
[INFO] [stderr]    Compiling convertable v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `C` is never constructed
[INFO] [stdout]   --> src/lib.rs:72:24
[INFO] [stdout]    |
[INFO] [stdout] 72 |             pub struct C<T>(T);
[INFO] [stdout]    |                        ^
[INFO] [stdout] ...
[INFO] [stdout] 78 |         structs!();
[INFO] [stdout]    |         ---------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]    = note: this warning originates in the macro `structs` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `C` is never constructed
[INFO] [stdout]   --> src/lib.rs:72:24
[INFO] [stdout]    |
[INFO] [stdout] 72 |             pub struct C<T>(T);
[INFO] [stdout]    |                        ^
[INFO] [stdout] ...
[INFO] [stdout] 90 |         structs!();
[INFO] [stdout]    |         ---------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `structs` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `C` is never constructed
[INFO] [stdout]    --> src/lib.rs:72:24
[INFO] [stdout]     |
[INFO] [stdout]  72 |             pub struct C<T>(T);
[INFO] [stdout]     |                        ^
[INFO] [stdout] ...
[INFO] [stdout] 127 |         structs!();
[INFO] [stdout]     |         ---------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `structs` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "a0ce77fc3f303f7a5ca947ac14d261c47dc5c4935c748ae037540ead1177142b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0ce77fc3f303f7a5ca947ac14d261c47dc5c4935c748ae037540ead1177142b", kill_on_drop: false }`
[INFO] [stdout] a0ce77fc3f303f7a5ca947ac14d261c47dc5c4935c748ae037540ead1177142b
[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=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] 261dcf2db9c0cd69d330205382368e7090e5efeceb7e38db3e77ce71b27534d7
[INFO] running `Command { std: "docker" "start" "-a" "261dcf2db9c0cd69d330205382368e7090e5efeceb7e38db3e77ce71b27534d7", kill_on_drop: false }`
[INFO] [stderr] warning: struct `C` is never constructed
[INFO] [stderr]   --> src/lib.rs:72:24
[INFO] [stderr]    |
[INFO] [stderr] 72 |             pub struct C<T>(T);
[INFO] [stderr]    |                        ^
[INFO] [stderr] ...
[INFO] [stderr] 78 |         structs!();
[INFO] [stderr]    |         ---------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr]    = note: this warning originates in the macro `structs` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: struct `C` is never constructed
[INFO] [stderr]   --> src/lib.rs:72:24
[INFO] [stderr]    |
[INFO] [stderr] 72 |             pub struct C<T>(T);
[INFO] [stderr]    |                        ^
[INFO] [stderr] ...
[INFO] [stderr] 90 |         structs!();
[INFO] [stderr]    |         ---------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `structs` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: struct `C` is never constructed
[INFO] [stderr]    --> src/lib.rs:72:24
[INFO] [stderr]     |
[INFO] [stderr]  72 |             pub struct C<T>(T);
[INFO] [stderr]     |                        ^
[INFO] [stderr] ...
[INFO] [stderr] 127 |         structs!();
[INFO] [stderr]     |         ---------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `structs` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `convertable` (lib test) generated 3 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/convertable-7048fb2b73284e97)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::convert_container ... ok
[INFO] [stdout] test tests::convert_from_implies_convert_into ... ok
[INFO] [stdout] test tests::try_convert_container ... ok
[INFO] [stdout] test tests::try_convert_from_implies_try_convert_into ... ok
[INFO] [stdout] test tests::convert_into_implies_try_convert_from ... 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 convertable
[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] running `Command { std: "docker" "inspect" "261dcf2db9c0cd69d330205382368e7090e5efeceb7e38db3e77ce71b27534d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "261dcf2db9c0cd69d330205382368e7090e5efeceb7e38db3e77ce71b27534d7", kill_on_drop: false }`
[INFO] [stdout] 261dcf2db9c0cd69d330205382368e7090e5efeceb7e38db3e77ce71b27534d7