[INFO] fetching crate bl_save 0.2.0... [INFO] testing bl_save-0.2.0 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041 [INFO] extracting crate bl_save 0.2.0 into /workspace/builds/worker-1/source [INFO] validating manifest of crates.io crate bl_save 0.2.0 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate bl_save 0.2.0 [INFO] finished tweaking crates.io crate bl_save 0.2.0 [INFO] tweaked toml for crates.io crate bl_save 0.2.0 written to /workspace/builds/worker-1/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6a84a74f1b3a6bf9374cf0b9288a871014190379d0e8dfc5b5c60eb8afc04c7b [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "6a84a74f1b3a6bf9374cf0b9288a871014190379d0e8dfc5b5c60eb8afc04c7b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6a84a74f1b3a6bf9374cf0b9288a871014190379d0e8dfc5b5c60eb8afc04c7b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6a84a74f1b3a6bf9374cf0b9288a871014190379d0e8dfc5b5c60eb8afc04c7b", kill_on_drop: false }` [INFO] [stdout] 6a84a74f1b3a6bf9374cf0b9288a871014190379d0e8dfc5b5c60eb8afc04c7b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] a385e82fa8092e500304d11e51bd2d9f4f9b152ed5c54e7f204a68baaeb9db59 [INFO] running `Command { std: "docker" "start" "-a" "a385e82fa8092e500304d11e51bd2d9f4f9b152ed5c54e7f204a68baaeb9db59", kill_on_drop: false }` [INFO] [stderr] Compiling bl_save v0.2.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.16s [INFO] running `Command { std: "docker" "inspect" "a385e82fa8092e500304d11e51bd2d9f4f9b152ed5c54e7f204a68baaeb9db59", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a385e82fa8092e500304d11e51bd2d9f4f9b152ed5c54e7f204a68baaeb9db59", kill_on_drop: false }` [INFO] [stdout] a385e82fa8092e500304d11e51bd2d9f4f9b152ed5c54e7f204a68baaeb9db59 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] bbbb7c01994a0e3489a8d3d2e55cd9296963991261a1e4af2083d3d4eb28eb0d [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "bbbb7c01994a0e3489a8d3d2e55cd9296963991261a1e4af2083d3d4eb28eb0d", kill_on_drop: false }` [INFO] [stderr] Compiling bl_save v0.2.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.38s [INFO] running `Command { std: "docker" "inspect" "bbbb7c01994a0e3489a8d3d2e55cd9296963991261a1e4af2083d3d4eb28eb0d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bbbb7c01994a0e3489a8d3d2e55cd9296963991261a1e4af2083d3d4eb28eb0d", kill_on_drop: false }` [INFO] [stdout] bbbb7c01994a0e3489a8d3d2e55cd9296963991261a1e4af2083d3d4eb28eb0d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] ef71f4566bb7937ce3f04ba5a7a5a71dc2ef94cd6ce8ab9141831594c700585f [INFO] running `Command { std: "docker" "start" "-a" "ef71f4566bb7937ce3f04ba5a7a5a71dc2ef94cd6ce8ab9141831594c700585f", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/bl_save-fe921fd131635855) [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/print-f84879742cb247a7) [INFO] [stdout] running 0 tests [INFO] [stderr] Doc-tests bl_save [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 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 8) ... FAILED [INFO] [stdout] test src/read.rs - read::Reader::new (line 28) ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - (line 8) stdout ---- [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `BufReader` [INFO] [stdout] --> src/lib.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 4 | let file = BufReader::new(File::open("House.bls")?); [INFO] [stdout] | ^^^^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing this struct [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::BufReader; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `File` [INFO] [stdout] --> src/lib.rs:9:27 [INFO] [stdout] | [INFO] [stdout] 4 | let file = BufReader::new(File::open("House.bls")?); [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing this struct [INFO] [stdout] | [INFO] [stdout] 3 | use std::fs::File; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`) [INFO] [stdout] --> src/lib.rs:9:50 [INFO] [stdout] | [INFO] [stdout] 3 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_8_0() { [INFO] [stdout] | ______________________________________- [INFO] [stdout] 4 | | let file = BufReader::new(File::open("House.bls")?); [INFO] [stdout] | | ^ cannot use the `?` operator in a function that returns `()` [INFO] [stdout] 5 | | let reader = bl_save::Reader::new(file)?; [INFO] [stdout] 6 | | [INFO] [stdout] ... | [INFO] [stdout] 16 | | } [INFO] [stdout] 17 | | } _doctest_main_src_lib_rs_8_0() } [INFO] [stdout] | |_- this function should return `Result` or `Option` to accept `?` [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromResidual<_>` is not implemented for `()` [INFO] [stdout] = note: required by `from_residual` [INFO] [stdout] [INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`) [INFO] [stdout] --> src/lib.rs:10:40 [INFO] [stdout] | [INFO] [stdout] 3 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_8_0() { [INFO] [stdout] | ______________________________________- [INFO] [stdout] 4 | | let file = BufReader::new(File::open("House.bls")?); [INFO] [stdout] 5 | | let reader = bl_save::Reader::new(file)?; [INFO] [stdout] | | ^ cannot use the `?` operator in a function that returns `()` [INFO] [stdout] 6 | | [INFO] [stdout] ... | [INFO] [stdout] 16 | | } [INFO] [stdout] 17 | | } _doctest_main_src_lib_rs_8_0() } [INFO] [stdout] | |_- this function should return `Result` or `Option` to accept `?` [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromResidual>` is not implemented for `()` [INFO] [stdout] = note: required by `from_residual` [INFO] [stdout] [INFO] [stdout] error[E0277]: `&str` is not an iterator [INFO] [stdout] --> src/lib.rs:12:13 [INFO] [stdout] | [INFO] [stdout] 7 | for line in reader.description() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ `&str` is not an iterator; try calling `.chars()` or `.bytes()` [INFO] [stdout] | [INFO] [stdout] = help: the trait `Iterator` is not implemented for `&str` [INFO] [stdout] = note: required because of the requirements on the impl of `IntoIterator` for `&str` [INFO] [stdout] = note: required by `into_iter` [INFO] [stdout] [INFO] [stdout] error[E0277]: `Option` doesn't implement `std::fmt::Display` [INFO] [stdout] --> src/lib.rs:17:29 [INFO] [stdout] | [INFO] [stdout] 12 | println!("Brick count: {}", reader.brick_count()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ `Option` cannot be formatted with the default formatter [INFO] [stdout] | [INFO] [stdout] = help: the trait `std::fmt::Display` is not implemented for `Option` [INFO] [stdout] = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead [INFO] [stdout] = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`) [INFO] [stdout] --> src/lib.rs:20:22 [INFO] [stdout] | [INFO] [stdout] 3 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_8_0() { [INFO] [stdout] | ______________________________________- [INFO] [stdout] 4 | | let file = BufReader::new(File::open("House.bls")?); [INFO] [stdout] 5 | | let reader = bl_save::Reader::new(file)?; [INFO] [stdout] 6 | | [INFO] [stdout] ... | [INFO] [stdout] 15 | | let brick = brick?; [INFO] [stdout] | | ^ cannot use the `?` operator in a function that returns `()` [INFO] [stdout] 16 | | } [INFO] [stdout] 17 | | } _doctest_main_src_lib_rs_8_0() } [INFO] [stdout] | |_- this function should return `Result` or `Option` to accept `?` [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromResidual>` is not implemented for `()` [INFO] [stdout] = note: required by `from_residual` [INFO] [stdout] [INFO] [stdout] error: aborting due to 7 previous errors [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0277, E0433. [INFO] [stdout] For more information about an error, try `rustc --explain E0277`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] ---- src/read.rs - read::Reader::new (line 28) stdout ---- [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `BufReader` [INFO] [stdout] --> src/read.rs:29:12 [INFO] [stdout] | [INFO] [stdout] 4 | let file = BufReader::new(File::open("House.bls")?); [INFO] [stdout] | ^^^^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing this struct [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::BufReader; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `File` [INFO] [stdout] --> src/read.rs:29:27 [INFO] [stdout] | [INFO] [stdout] 4 | let file = BufReader::new(File::open("House.bls")?); [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing this struct [INFO] [stdout] | [INFO] [stdout] 3 | use std::fs::File; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`) [INFO] [stdout] --> src/read.rs:29:50 [INFO] [stdout] | [INFO] [stdout] 3 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_read_rs_28_0() { [INFO] [stdout] | ______________________________________- [INFO] [stdout] 4 | | let file = BufReader::new(File::open("House.bls")?); [INFO] [stdout] | | ^ cannot use the `?` operator in a function that returns `()` [INFO] [stdout] 5 | | let reader = bl_save::Reader::new(file)?; [INFO] [stdout] 6 | | } _doctest_main_src_read_rs_28_0() } [INFO] [stdout] | |_- this function should return `Result` or `Option` to accept `?` [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromResidual<_>` is not implemented for `()` [INFO] [stdout] = note: required by `from_residual` [INFO] [stdout] [INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`) [INFO] [stdout] --> src/read.rs:30:40 [INFO] [stdout] | [INFO] [stdout] 3 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_read_rs_28_0() { [INFO] [stdout] | ______________________________________- [INFO] [stdout] 4 | | let file = BufReader::new(File::open("House.bls")?); [INFO] [stdout] 5 | | let reader = bl_save::Reader::new(file)?; [INFO] [stdout] | | ^ cannot use the `?` operator in a function that returns `()` [INFO] [stdout] 6 | | } _doctest_main_src_read_rs_28_0() } [INFO] [stdout] | |_- this function should return `Result` or `Option` to accept `?` [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromResidual>` is not implemented for `()` [INFO] [stdout] = note: required by `from_residual` [INFO] [stdout] [INFO] [stdout] error: aborting due to 4 previous errors [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0277, E0433. [INFO] [stdout] For more information about an error, try `rustc --explain E0277`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/lib.rs - (line 8) [INFO] [stdout] src/read.rs - read::Reader::new (line 28) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.48s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--doc' [INFO] running `Command { std: "docker" "inspect" "ef71f4566bb7937ce3f04ba5a7a5a71dc2ef94cd6ce8ab9141831594c700585f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ef71f4566bb7937ce3f04ba5a7a5a71dc2ef94cd6ce8ab9141831594c700585f", kill_on_drop: false }` [INFO] [stdout] ef71f4566bb7937ce3f04ba5a7a5a71dc2ef94cd6ce8ab9141831594c700585f