[INFO] fetching crate utf8-decode 1.0.1... [INFO] testing utf8-decode-1.0.1 against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479 [INFO] extracting crate utf8-decode 1.0.1 into /workspace/builds/worker-12/source [INFO] validating manifest of crates.io crate utf8-decode 1.0.1 on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate utf8-decode 1.0.1 [INFO] finished tweaking crates.io crate utf8-decode 1.0.1 [INFO] tweaked toml for crates.io crate utf8-decode 1.0.1 written to /workspace/builds/worker-12/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 29b282b542b1f856166c03ffc2902f56338b8048744871a531ccefb0dcb91368 [INFO] running `Command { std: "docker" "start" "-a" "29b282b542b1f856166c03ffc2902f56338b8048744871a531ccefb0dcb91368", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "29b282b542b1f856166c03ffc2902f56338b8048744871a531ccefb0dcb91368", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "29b282b542b1f856166c03ffc2902f56338b8048744871a531ccefb0dcb91368", kill_on_drop: false }` [INFO] [stdout] 29b282b542b1f856166c03ffc2902f56338b8048744871a531ccefb0dcb91368 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3897f26a2c57d5822b422656af2ea7d0c86d03f11993da460837152031e1e2a6 [INFO] running `Command { std: "docker" "start" "-a" "3897f26a2c57d5822b422656af2ea7d0c86d03f11993da460837152031e1e2a6", kill_on_drop: false }` [INFO] [stderr] Compiling utf8-decode v1.0.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.08s [INFO] running `Command { std: "docker" "inspect" "3897f26a2c57d5822b422656af2ea7d0c86d03f11993da460837152031e1e2a6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3897f26a2c57d5822b422656af2ea7d0c86d03f11993da460837152031e1e2a6", kill_on_drop: false }` [INFO] [stdout] 3897f26a2c57d5822b422656af2ea7d0c86d03f11993da460837152031e1e2a6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d88b5a831da7b90e0535fe1a78d06f2222d65aa484dded51e905aca90ccbd26d [INFO] running `Command { std: "docker" "start" "-a" "d88b5a831da7b90e0535fe1a78d06f2222d65aa484dded51e905aca90ccbd26d", kill_on_drop: false }` [INFO] [stderr] Compiling utf8-decode v1.0.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.30s [INFO] running `Command { std: "docker" "inspect" "d88b5a831da7b90e0535fe1a78d06f2222d65aa484dded51e905aca90ccbd26d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d88b5a831da7b90e0535fe1a78d06f2222d65aa484dded51e905aca90ccbd26d", kill_on_drop: false }` [INFO] [stdout] d88b5a831da7b90e0535fe1a78d06f2222d65aa484dded51e905aca90ccbd26d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] ae7a237d5f0a7100804f53e3d146eb437d525beaba0c0c553ec1c674aadc4b6f [INFO] running `Command { std: "docker" "start" "-a" "ae7a237d5f0a7100804f53e3d146eb437d525beaba0c0c553ec1c674aadc4b6f", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.00s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/utf8_decode-b3fbc27a6d228188) [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 utf8-decode [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test src/lib.rs - UnsafeDecoder (line 141) ... FAILED [INFO] [stdout] test src/safe.rs - safe::Decoder (line 80) ... FAILED [INFO] [stdout] test src/lib.rs - (line 9) ... ok [INFO] [stdout] test src/lib.rs - (line 35) ... ok [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - UnsafeDecoder (line 141) stdout ---- [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `File` [INFO] [stdout] --> src/lib.rs:142:12 [INFO] [stdout] | [INFO] [stdout] 3 | let file = File::open("file.txt")?; [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing this struct [INFO] [stdout] | [INFO] [stdout] 2 | use std::fs::File; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `UnsafeDecoder` [INFO] [stdout] --> src/lib.rs:144:15 [INFO] [stdout] | [INFO] [stdout] 5 | let decoder = UnsafeDecoder::new(file.bytes()); [INFO] [stdout] | ^^^^^^^^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing this struct [INFO] [stdout] | [INFO] [stdout] 2 | use utf8_decode::UnsafeDecoder; [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:142:34 [INFO] [stdout] | [INFO] [stdout] 2 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_141_0() { [INFO] [stdout] | ______________________________________- [INFO] [stdout] 3 | | let file = File::open("file.txt")?; [INFO] [stdout] | | ^ cannot use the `?` operator in a function that returns `()` [INFO] [stdout] 4 | | [INFO] [stdout] 5 | | let decoder = UnsafeDecoder::new(file.bytes()); [INFO] [stdout] ... | [INFO] [stdout] 10 | | } [INFO] [stdout] 11 | | } _doctest_main_src_lib_rs_141_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:148:18 [INFO] [stdout] | [INFO] [stdout] 2 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_141_0() { [INFO] [stdout] | ______________________________________- [INFO] [stdout] 3 | | let file = File::open("file.txt")?; [INFO] [stdout] 4 | | [INFO] [stdout] 5 | | let decoder = UnsafeDecoder::new(file.bytes()); [INFO] [stdout] ... | [INFO] [stdout] 9 | | string.push(c?); [INFO] [stdout] | | ^ cannot use the `?` operator in a function that returns `()` [INFO] [stdout] 10 | | } [INFO] [stdout] 11 | | } _doctest_main_src_lib_rs_141_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] ---- src/safe.rs - safe::Decoder (line 80) stdout ---- [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Decoder` [INFO] [stdout] --> src/safe.rs:83:15 [INFO] [stdout] | [INFO] [stdout] 5 | let decoder = Decoder::new(bytes.iter().cloned()); [INFO] [stdout] | ^^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing this struct [INFO] [stdout] | [INFO] [stdout] 2 | use utf8_decode::Decoder; [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/safe.rs:87:18 [INFO] [stdout] | [INFO] [stdout] 2 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_safe_rs_80_0() { [INFO] [stdout] | ______________________________________- [INFO] [stdout] 3 | | let bytes = [72, 101, 108, 108, 111, 32, 87, 111, 114, 108, 100, 33]; [INFO] [stdout] 4 | | [INFO] [stdout] 5 | | let decoder = Decoder::new(bytes.iter().cloned()); [INFO] [stdout] ... | [INFO] [stdout] 9 | | string.push(c?); [INFO] [stdout] | | ^ cannot use the `?` operator in a function that returns `()` [INFO] [stdout] ... | [INFO] [stdout] 12 | | println!("{}", string); [INFO] [stdout] 13 | | } _doctest_main_src_safe_rs_80_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 2 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 - UnsafeDecoder (line 141) [INFO] [stdout] src/safe.rs - safe::Decoder (line 80) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 2 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.33s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--doc' [INFO] running `Command { std: "docker" "inspect" "ae7a237d5f0a7100804f53e3d146eb437d525beaba0c0c553ec1c674aadc4b6f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ae7a237d5f0a7100804f53e3d146eb437d525beaba0c0c553ec1c674aadc4b6f", kill_on_drop: false }` [INFO] [stdout] ae7a237d5f0a7100804f53e3d146eb437d525beaba0c0c553ec1c674aadc4b6f