[INFO] fetching crate tokio-file-futures 0.1.0...
[INFO] testing tokio-file-futures-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate tokio-file-futures 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate tokio-file-futures 0.1.0
[INFO] finished tweaking crates.io crate tokio-file-futures 0.1.0
[INFO] tweaked toml for crates.io crate tokio-file-futures 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tokio-file-futures 0.1.0 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] 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] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 56 packages to latest compatible versions
[INFO] [stderr]       Adding futures v0.1.31 (available: v0.3.31)
[INFO] [stderr]       Adding tokio v0.1.22 (available: v1.47.1)
[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] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[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] 6a114aaff52abc0e89be66638dde5778eed6e2af6e5eeb4afb20007af76492f6
[INFO] running `Command { std: "docker" "start" "-a" "6a114aaff52abc0e89be66638dde5778eed6e2af6e5eeb4afb20007af76492f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a114aaff52abc0e89be66638dde5778eed6e2af6e5eeb4afb20007af76492f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a114aaff52abc0e89be66638dde5778eed6e2af6e5eeb4afb20007af76492f6", kill_on_drop: false }`
[INFO] [stdout] 6a114aaff52abc0e89be66638dde5778eed6e2af6e5eeb4afb20007af76492f6
[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] 3984fb845938b5c32b4e403e4348ba9ab42735720eef1fc8c5d4fd85b1255fa0
[INFO] running `Command { std: "docker" "start" "-a" "3984fb845938b5c32b4e403e4348ba9ab42735720eef1fc8c5d4fd85b1255fa0", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling tokio-threadpool v0.1.18
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling tokio-fs v0.1.7
[INFO] [stderr]    Compiling tokio-file-futures v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `Command { std: "docker" "inspect" "3984fb845938b5c32b4e403e4348ba9ab42735720eef1fc8c5d4fd85b1255fa0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3984fb845938b5c32b4e403e4348ba9ab42735720eef1fc8c5d4fd85b1255fa0", kill_on_drop: false }`
[INFO] [stdout] 3984fb845938b5c32b4e403e4348ba9ab42735720eef1fc8c5d4fd85b1255fa0
[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] e1b0ee814f0bc8c8f2ae41f44d6b5128b3e1b1f1701ad5d4b5e8a5ea3e489025
[INFO] running `Command { std: "docker" "start" "-a" "e1b0ee814f0bc8c8f2ae41f44d6b5128b3e1b1f1701ad5d4b5e8a5ea3e489025", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling tokio-codec v0.1.2
[INFO] [stderr]    Compiling tokio-reactor v0.1.12
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling tokio-tcp v0.1.4
[INFO] [stderr]    Compiling tokio-uds v0.2.7
[INFO] [stderr]    Compiling tokio-udp v0.1.6
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling tokio-file-futures v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0271]: type mismatch resolving `<AndThen<..., ..., ...> as IntoFuture>::Error == (..., ...)`
[INFO] [stdout]    --> examples/example.rs:31:46
[INFO] [stdout]     |
[INFO] [stdout]  31 | ...                   file.try_clone().and_then(|(file, _file2)| {
[INFO] [stdout]     |                                        ^^^^^^^^ expected `(File, Error)`, found `Error`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected tuple `(tokio_fs::File, std::io::Error)`
[INFO] [stdout]               found struct `std::io::Error`
[INFO] [stdout] note: required by a bound in `futures::Future::and_then`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/futures-0.1.31/src/future/mod.rs:528:29
[INFO] [stdout]     |
[INFO] [stdout] 526 |     fn and_then<F, B>(self, f: F) -> AndThen<Self, B, F>
[INFO] [stdout]     |        -------- required by a bound in this associated function
[INFO] [stdout] 527 |         where F: FnOnce(Self::Item) -> B,
[INFO] [stdout] 528 |               B: IntoFuture<Error = Self::Error>,
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^ required by this bound in `Future::and_then`
[INFO] [stdout]     = note: the full name for the type has been written to '/opt/rustwide/target/debug/examples/example-f7d52efee1fe0621.long-type-17177972506222856408.txt'
[INFO] [stdout]     = note: consider using `--verbose` to print the full type name to the console
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0271]: type mismatch resolving `<AndThen<..., ..., ...> as IntoFuture>::Error == (..., ...)`
[INFO] [stdout]    --> examples/example.rs:30:42
[INFO] [stdout]     |
[INFO] [stdout]  30 |                         file.sync_data().and_then(|file| {
[INFO] [stdout]     |                                          ^^^^^^^^ expected `(File, Error)`, found `Error`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected tuple `(tokio_fs::File, std::io::Error)`
[INFO] [stdout]               found struct `std::io::Error`
[INFO] [stdout]     = note: required for `AndThen<CloneFuture, AndThen<MetadataFuture, ..., ...>, ...>` to implement `futures::Future`
[INFO] [stdout] note: required by a bound in `futures::Future::and_then`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/futures-0.1.31/src/future/mod.rs:528:29
[INFO] [stdout]     |
[INFO] [stdout] 526 |     fn and_then<F, B>(self, f: F) -> AndThen<Self, B, F>
[INFO] [stdout]     |        -------- required by a bound in this associated function
[INFO] [stdout] 527 |         where F: FnOnce(Self::Item) -> B,
[INFO] [stdout] 528 |               B: IntoFuture<Error = Self::Error>,
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^ required by this bound in `Future::and_then`
[INFO] [stdout]     = note: the full name for the type has been written to '/opt/rustwide/target/debug/examples/example-f7d52efee1fe0621.long-type-17177972506222856408.txt'
[INFO] [stdout]     = note: consider using `--verbose` to print the full type name to the console
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the method `map_err` exists for struct `AndThen<SetLen<File>, AndThen<SyncAll<File>, ..., ...>, ...>`, but its trait bounds were not satisfied
[INFO] [stdout]   --> examples/example.rs:42:18
[INFO] [stdout]    |
[INFO] [stdout] 27 |               let future3 = file.set_len(30)
[INFO] [stdout]    |  ___________________________-
[INFO] [stdout] 28 | |                 .and_then(|file| {
[INFO] [stdout] 29 | |                     file.sync_all().and_then(|file| {
[INFO] [stdout] 30 | |                         file.sync_data().and_then(|file| {
[INFO] [stdout] ...  |
[INFO] [stdout] 41 | |                 })
[INFO] [stdout] 42 | |                 .map_err(|e| println!("Error3: {}", e));
[INFO] [stdout]    | |                 -^^^^^^^ method cannot be called due to unsatisfied trait bounds
[INFO] [stdout]    | |_________________|
[INFO] [stdout]    |
[INFO] [stdout]    |
[INFO] [stdout]   ::: /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/futures-0.1.31/src/future/and_then.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 |   pub struct AndThen<A, B, F> where A: Future, B: IntoFuture {
[INFO] [stdout]    |   --------------------------- doesn't satisfy `<_ as IntoFuture>::Error = Error`, `_: Future` or `_: IntoFuture`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `<futures::AndThen<SyncAll<tokio_fs::File>, futures::AndThen<SyncData<tokio_fs::File>, futures::AndThen<CloneFuture, futures::AndThen<tokio_fs::file::MetadataFuture, SetPermissions<tokio_fs::File>, {closure@examples/example.rs:32:58: 32:76}>, {closure@examples/example.rs:31:55: 31:71}>, {closure@examples/example.rs:30:51: 30:57}>, {closure@examples/example.rs:29:46: 29:52}> as futures::IntoFuture>::Error = std::io::Error`
[INFO] [stdout]            which is required by `futures::AndThen<SetLen<tokio_fs::File>, futures::AndThen<SyncAll<tokio_fs::File>, futures::AndThen<SyncData<tokio_fs::File>, futures::AndThen<CloneFuture, futures::AndThen<tokio_fs::file::MetadataFuture, SetPermissions<tokio_fs::File>, {closure@examples/example.rs:32:58: 32:76}>, {closure@examples/example.rs:31:55: 31:71}>, {closure@examples/example.rs:30:51: 30:57}>, {closure@examples/example.rs:29:46: 29:52}>, {closure@examples/example.rs:28:27: 28:33}>: futures::Future`
[INFO] [stdout]            `futures::AndThen<SyncAll<tokio_fs::File>, futures::AndThen<SyncData<tokio_fs::File>, futures::AndThen<CloneFuture, futures::AndThen<tokio_fs::file::MetadataFuture, SetPermissions<tokio_fs::File>, {closure@examples/example.rs:32:58: 32:76}>, {closure@examples/example.rs:31:55: 31:71}>, {closure@examples/example.rs:30:51: 30:57}>, {closure@examples/example.rs:29:46: 29:52}>: futures::IntoFuture`
[INFO] [stdout]            which is required by `futures::AndThen<SetLen<tokio_fs::File>, futures::AndThen<SyncAll<tokio_fs::File>, futures::AndThen<SyncData<tokio_fs::File>, futures::AndThen<CloneFuture, futures::AndThen<tokio_fs::file::MetadataFuture, SetPermissions<tokio_fs::File>, {closure@examples/example.rs:32:58: 32:76}>, {closure@examples/example.rs:31:55: 31:71}>, {closure@examples/example.rs:30:51: 30:57}>, {closure@examples/example.rs:29:46: 29:52}>, {closure@examples/example.rs:28:27: 28:33}>: futures::Future`
[INFO] [stdout]            `futures::AndThen<SetLen<tokio_fs::File>, futures::AndThen<SyncAll<tokio_fs::File>, futures::AndThen<SyncData<tokio_fs::File>, futures::AndThen<CloneFuture, futures::AndThen<tokio_fs::file::MetadataFuture, SetPermissions<tokio_fs::File>, {closure@examples/example.rs:32:58: 32:76}>, {closure@examples/example.rs:31:55: 31:71}>, {closure@examples/example.rs:30:51: 30:57}>, {closure@examples/example.rs:29:46: 29:52}>, {closure@examples/example.rs:28:27: 28:33}>: futures::Future`
[INFO] [stdout]            which is required by `&mut futures::AndThen<SetLen<tokio_fs::File>, futures::AndThen<SyncAll<tokio_fs::File>, futures::AndThen<SyncData<tokio_fs::File>, futures::AndThen<CloneFuture, futures::AndThen<tokio_fs::file::MetadataFuture, SetPermissions<tokio_fs::File>, {closure@examples/example.rs:32:58: 32:76}>, {closure@examples/example.rs:31:55: 31:71}>, {closure@examples/example.rs:30:51: 30:57}>, {closure@examples/example.rs:29:46: 29:52}>, {closure@examples/example.rs:28:27: 28:33}>: futures::Future`
[INFO] [stdout]    = note: the full name for the type has been written to '/opt/rustwide/target/debug/examples/example-f7d52efee1fe0621.long-type-7373629302201058492.txt'
[INFO] [stdout]    = note: consider using `--verbose` to print the full type name to the console
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0271, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0271`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tokio-file-futures` (example "example") due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "e1b0ee814f0bc8c8f2ae41f44d6b5128b3e1b1f1701ad5d4b5e8a5ea3e489025", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1b0ee814f0bc8c8f2ae41f44d6b5128b3e1b1f1701ad5d4b5e8a5ea3e489025", kill_on_drop: false }`
[INFO] [stdout] e1b0ee814f0bc8c8f2ae41f44d6b5128b3e1b1f1701ad5d4b5e8a5ea3e489025
