[INFO] fetching crate slice 0.0.4... [INFO] testing slice-0.0.4 against 1.60.0 for beta-1.61-1 [INFO] extracting crate slice 0.0.4 into /workspace/builds/worker-4/source [INFO] validating manifest of crates.io crate slice 0.0.4 on toolchain 1.60.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate slice 0.0.4 [INFO] finished tweaking crates.io crate slice 0.0.4 [INFO] tweaked toml for crates.io crate slice 0.0.4 written to /workspace/builds/worker-4/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", 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] 8d4de3b5d34bea3b6529ab22fa02f9d73a8a8327927d86418a185feb0b45fe72 [INFO] running `Command { std: "docker" "start" "-a" "8d4de3b5d34bea3b6529ab22fa02f9d73a8a8327927d86418a185feb0b45fe72", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8d4de3b5d34bea3b6529ab22fa02f9d73a8a8327927d86418a185feb0b45fe72", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8d4de3b5d34bea3b6529ab22fa02f9d73a8a8327927d86418a185feb0b45fe72", kill_on_drop: false }` [INFO] [stdout] 8d4de3b5d34bea3b6529ab22fa02f9d73a8a8327927d86418a185feb0b45fe72 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "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] 6f00de43ba0799e73c3a6aaaceb00a3146074bf384b6c452165a522ac51d9407 [INFO] running `Command { std: "docker" "start" "-a" "6f00de43ba0799e73c3a6aaaceb00a3146074bf384b6c452165a522ac51d9407", kill_on_drop: false }` [INFO] [stderr] Compiling slice v0.0.4 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.05s [INFO] running `Command { std: "docker" "inspect" "6f00de43ba0799e73c3a6aaaceb00a3146074bf384b6c452165a522ac51d9407", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6f00de43ba0799e73c3a6aaaceb00a3146074bf384b6c452165a522ac51d9407", kill_on_drop: false }` [INFO] [stdout] 6f00de43ba0799e73c3a6aaaceb00a3146074bf384b6c452165a522ac51d9407 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8ece2fccdca486e20cb9d5cb9a0390821e51be281b5be9bd721e17ab6dcf76c4 [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" "8ece2fccdca486e20cb9d5cb9a0390821e51be281b5be9bd721e17ab6dcf76c4", kill_on_drop: false }` [INFO] [stderr] Compiling slice v0.0.4 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.76s [INFO] running `Command { std: "docker" "inspect" "8ece2fccdca486e20cb9d5cb9a0390821e51be281b5be9bd721e17ab6dcf76c4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8ece2fccdca486e20cb9d5cb9a0390821e51be281b5be9bd721e17ab6dcf76c4", kill_on_drop: false }` [INFO] [stdout] 8ece2fccdca486e20cb9d5cb9a0390821e51be281b5be9bd721e17ab6dcf76c4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 43fd814a31f2667faab32f021fde676e2227368db13a689d2c3917a806aa367b [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" "43fd814a31f2667faab32f021fde676e2227368db13a689d2c3917a806aa367b", kill_on_drop: false }` [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stdout] running 0 tests [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/slice-2bc51eef3bbadd9d) [INFO] [stdout] [INFO] [stderr] Doc-tests slice [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 10) ... FAILED [INFO] [stdout] test src/lib.rs - IoSlice (line 56) ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - (line 10) 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:14:48 [INFO] [stdout] | [INFO] [stdout] 3 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_10_0() { [INFO] [stdout] | ______________________________________- [INFO] [stdout] 4 | | use { std::fs::File, slice::IoSlice }; [INFO] [stdout] 5 | | [INFO] [stdout] 6 | | [INFO] [stdout] 7 | | let source = File::open("/home/annie/data.png")?; [INFO] [stdout] | | ^ cannot use the `?` operator in a function that returns `()` [INFO] [stdout] ... | [INFO] [stdout] 27 | | // [INFO] [stdout] 28 | | } _doctest_main_src_lib_rs_10_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] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] ---- src/lib.rs - IoSlice (line 56) 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:60:48 [INFO] [stdout] | [INFO] [stdout] 3 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_56_0() { [INFO] [stdout] | ______________________________________- [INFO] [stdout] 4 | | use { std::fs::File, slice::IoSlice }; [INFO] [stdout] 5 | | [INFO] [stdout] 6 | | [INFO] [stdout] 7 | | let source = File::open("/home/annie/data.png")?; [INFO] [stdout] | | ^ cannot use the `?` operator in a function that returns `()` [INFO] [stdout] ... | [INFO] [stdout] 27 | | // [INFO] [stdout] 28 | | } _doctest_main_src_lib_rs_56_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] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/lib.rs - (line 10) [INFO] [stdout] src/lib.rs - IoSlice (line 56) [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: test failed, to rerun pass '--doc' [INFO] running `Command { std: "docker" "inspect" "43fd814a31f2667faab32f021fde676e2227368db13a689d2c3917a806aa367b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "43fd814a31f2667faab32f021fde676e2227368db13a689d2c3917a806aa367b", kill_on_drop: false }` [INFO] [stdout] 43fd814a31f2667faab32f021fde676e2227368db13a689d2c3917a806aa367b