[INFO] fetching crate expanding_slice_rb 0.1.3... [INFO] testing expanding_slice_rb-0.1.3 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031 [INFO] extracting crate expanding_slice_rb 0.1.3 into /workspace/builds/worker-6/source [INFO] validating manifest of crates.io crate expanding_slice_rb 0.1.3 on toolchain 722e1797249a965b6335aebd65d777f917e498f1 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate expanding_slice_rb 0.1.3 [INFO] finished tweaking crates.io crate expanding_slice_rb 0.1.3 [INFO] tweaked toml for crates.io crate expanding_slice_rb 0.1.3 written to /workspace/builds/worker-6/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded slice_ring_buf v0.2.6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2cb4a02d6c1d483a992ef9b2604322b58d1d7a843366207691882d18ff2d2d57 [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" "2cb4a02d6c1d483a992ef9b2604322b58d1d7a843366207691882d18ff2d2d57", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2cb4a02d6c1d483a992ef9b2604322b58d1d7a843366207691882d18ff2d2d57", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2cb4a02d6c1d483a992ef9b2604322b58d1d7a843366207691882d18ff2d2d57", kill_on_drop: false }` [INFO] [stdout] 2cb4a02d6c1d483a992ef9b2604322b58d1d7a843366207691882d18ff2d2d57 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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] 32d4fc6280c65e43469c20dab0aa8ae984c566ad8739e33ac1fed38a273fce49 [INFO] running `Command { std: "docker" "start" "-a" "32d4fc6280c65e43469c20dab0aa8ae984c566ad8739e33ac1fed38a273fce49", kill_on_drop: false }` [INFO] [stderr] Compiling slice_ring_buf v0.2.6 [INFO] [stderr] Compiling expanding_slice_rb v0.1.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/lib.rs:389:17 [INFO] [stdout] | [INFO] [stdout] 389 | &mut dst[start_data_len..start_data_len+additional].copy_from_slice(&src[0..additional]); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 389 | let _ = &mut dst[start_data_len..start_data_len+additional].copy_from_slice(&src[0..additional]); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/lib.rs:393:17 [INFO] [stdout] | [INFO] [stdout] 393 | &mut dst[start_data_len..start_data_len+wrapped_data_len].copy_from_slice(&src[0..wrapped_data_len]); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 393 | let _ = &mut dst[start_data_len..start_data_len+wrapped_data_len].copy_from_slice(&src[0..wrapped_data_len]); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.54s [INFO] running `Command { std: "docker" "inspect" "32d4fc6280c65e43469c20dab0aa8ae984c566ad8739e33ac1fed38a273fce49", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "32d4fc6280c65e43469c20dab0aa8ae984c566ad8739e33ac1fed38a273fce49", kill_on_drop: false }` [INFO] [stdout] 32d4fc6280c65e43469c20dab0aa8ae984c566ad8739e33ac1fed38a273fce49 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4da5b18bda533a5dbc1d24a98f1dab30b815ecae46f848eee1de1571be3b0332 [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" "4da5b18bda533a5dbc1d24a98f1dab30b815ecae46f848eee1de1571be3b0332", kill_on_drop: false }` [INFO] [stderr] Compiling expanding_slice_rb v0.1.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/lib.rs:389:17 [INFO] [stdout] | [INFO] [stdout] 389 | &mut dst[start_data_len..start_data_len+additional].copy_from_slice(&src[0..additional]); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 389 | let _ = &mut dst[start_data_len..start_data_len+additional].copy_from_slice(&src[0..additional]); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/lib.rs:393:17 [INFO] [stdout] | [INFO] [stdout] 393 | &mut dst[start_data_len..start_data_len+wrapped_data_len].copy_from_slice(&src[0..wrapped_data_len]); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 393 | let _ = &mut dst[start_data_len..start_data_len+wrapped_data_len].copy_from_slice(&src[0..wrapped_data_len]); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/lib.rs:389:17 [INFO] [stdout] | [INFO] [stdout] 389 | &mut dst[start_data_len..start_data_len+additional].copy_from_slice(&src[0..additional]); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 389 | let _ = &mut dst[start_data_len..start_data_len+additional].copy_from_slice(&src[0..additional]); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/lib.rs:393:17 [INFO] [stdout] | [INFO] [stdout] 393 | &mut dst[start_data_len..start_data_len+wrapped_data_len].copy_from_slice(&src[0..wrapped_data_len]); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 393 | let _ = &mut dst[start_data_len..start_data_len+wrapped_data_len].copy_from_slice(&src[0..wrapped_data_len]); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.89s [INFO] running `Command { std: "docker" "inspect" "4da5b18bda533a5dbc1d24a98f1dab30b815ecae46f848eee1de1571be3b0332", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4da5b18bda533a5dbc1d24a98f1dab30b815ecae46f848eee1de1571be3b0332", kill_on_drop: false }` [INFO] [stdout] 4da5b18bda533a5dbc1d24a98f1dab30b815ecae46f848eee1de1571be3b0332 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 81057d757c8e14925569f6693b951b9d02a0563a3db149c817af905c44c883fc [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" "81057d757c8e14925569f6693b951b9d02a0563a3db149c817af905c44c883fc", kill_on_drop: false }` [INFO] [stderr] warning: unused borrow that must be used [INFO] [stderr] --> src/lib.rs:389:17 [INFO] [stderr] | [INFO] [stderr] 389 | &mut dst[start_data_len..start_data_len+additional].copy_from_slice(&src[0..additional]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 389 | let _ = &mut dst[start_data_len..start_data_len+additional].copy_from_slice(&src[0..additional]); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: unused borrow that must be used [INFO] [stderr] --> src/lib.rs:393:17 [INFO] [stderr] | [INFO] [stderr] 393 | &mut dst[start_data_len..start_data_len+wrapped_data_len].copy_from_slice(&src[0..wrapped_data_len]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stderr] | [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 393 | let _ = &mut dst[start_data_len..start_data_len+wrapped_data_len].copy_from_slice(&src[0..wrapped_data_len]); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: `expanding_slice_rb` (lib) generated 2 warnings [INFO] [stderr] warning: `expanding_slice_rb` (lib test) generated 2 warnings (2 duplicates) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/expanding_slice_rb-a912f5c38bf8584d) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stderr] Doc-tests expanding_slice_rb [INFO] [stdout] test tests::test ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 7 tests [INFO] [stdout] test src/lib.rs - ExpSliceRB::read_into (line 171) ... ok [INFO] [stdout] test src/lib.rs - ExpSliceRB::try_write (line 328) ... ok [INFO] [stdout] test src/lib.rs - ExpSliceRB::write (line 285) ... ok [INFO] [stdout] test src/lib.rs - ExpSliceRB::peek_into (line 236) ... ok [INFO] [stdout] test src/lib.rs - ExpSliceRB::with_capacity (line 133) ... ok [INFO] [stdout] test src/lib.rs - ExpSliceRB (line 77) ... ok [INFO] [stdout] test src/lib.rs - (line 20) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.43s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "81057d757c8e14925569f6693b951b9d02a0563a3db149c817af905c44c883fc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "81057d757c8e14925569f6693b951b9d02a0563a3db149c817af905c44c883fc", kill_on_drop: false }` [INFO] [stdout] 81057d757c8e14925569f6693b951b9d02a0563a3db149c817af905c44c883fc