[INFO] fetching crate scryer-prolog 0.8.120... [INFO] testing scryer-prolog-0.8.120 against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274 [INFO] extracting crate scryer-prolog 0.8.120 into /workspace/builds/worker-12/source [INFO] validating manifest of crates.io crate scryer-prolog 0.8.120 on toolchain 41997647ba6a77908f6ef64401414feb00bccf16 [INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate scryer-prolog 0.8.120 [INFO] finished tweaking crates.io crate scryer-prolog 0.8.120 [INFO] tweaked toml for crates.io crate scryer-prolog 0.8.120 written to /workspace/builds/worker-12/source/Cargo.toml [INFO] crate crates.io crate scryer-prolog 0.8.120 already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"` [INFO] [stdout] 4091644e45db0cf71c1b45c259b4ad5e21930041f0c347654c80bb6083af0e22 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "4091644e45db0cf71c1b45c259b4ad5e21930041f0c347654c80bb6083af0e22"` [INFO] [stderr] Compiling libc v0.2.62 [INFO] [stderr] Compiling void v1.0.2 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling slab v0.4.2 [INFO] [stderr] Compiling static_assertions v0.2.5 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling rug v1.5.2 [INFO] [stderr] Compiling nix v0.14.1 [INFO] [stderr] Compiling unicode-segmentation v1.3.0 [INFO] [stderr] Compiling nix v0.15.0 [INFO] [stderr] Compiling proc-macro-hack v0.5.14 [INFO] [stderr] Compiling indexmap v1.1.0 [INFO] [stderr] Compiling utf8parse v0.1.1 [INFO] [stderr] Compiling unicode-width v0.1.6 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling downcast v0.10.0 [INFO] [stderr] Compiling ref_thread_local v0.0.0 [INFO] [stderr] Compiling num-traits v0.2.9 [INFO] [stderr] Compiling lock_api v0.3.3 [INFO] [stderr] Compiling unreachable v1.0.0 [INFO] [stderr] Compiling quote v1.0.3 [INFO] [stderr] Compiling stackvector v1.0.2 [INFO] [stderr] Compiling smallvec v0.6.13 [INFO] [stderr] Compiling syn v1.0.17 [INFO] [stderr] Compiling unicode_reader v1.0.0 [INFO] [stderr] Compiling lexical-core v0.4.0 [INFO] [stderr] Compiling scryer-prolog v0.8.120 (/opt/rustwide/workdir) [INFO] [stderr] Compiling num-traits v0.1.43 [INFO] [stderr] Compiling ordered-float v0.5.2 [INFO] [stderr] Compiling dirs-sys v0.3.4 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling net2 v0.2.33 [INFO] [stderr] Compiling signal-hook-registry v1.2.0 [INFO] [stderr] Compiling parking_lot_core v0.7.0 [INFO] [stderr] Compiling dirs v2.0.2 [INFO] [stderr] Compiling mio v0.6.21 [INFO] [stderr] Compiling gmp-mpfr-sys v1.1.14 [INFO] [stderr] Compiling parking_lot v0.10.0 [INFO] [stderr] Compiling lexical v2.1.0 [INFO] [stderr] Compiling signal-hook v0.1.13 [INFO] [stderr] Compiling crossterm v0.16.0 [INFO] [stderr] Compiling git-version-macro v0.3.4 [INFO] [stderr] Compiling git-version v0.3.4 [INFO] [stderr] Compiling rustyline v6.0.0 [INFO] [stderr] Compiling prolog_parser v0.8.51 [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/prolog/heap_print.rs:452:13 [INFO] [stderr] | [INFO] [stderr] 452 | (iter.next() == Some(']') && iter.next().is_none()) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/prolog/heap_print.rs:454:13 [INFO] [stderr] | [INFO] [stderr] 454 | (iter.next() == Some('}') && iter.next().is_none()) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Binary` [INFO] [stderr] --> src/prolog/machine/streams.rs:16:5 [INFO] [stderr] | [INFO] [stderr] 16 | Binary, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Error` [INFO] [stderr] --> src/prolog/machine/streams.rs:23:5 [INFO] [stderr] | [INFO] [stderr] 23 | Error, [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Reset` [INFO] [stderr] --> src/prolog/machine/streams.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | Reset, [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Stdin` [INFO] [stderr] --> src/prolog/machine/streams.rs:35:5 [INFO] [stderr] | [INFO] [stderr] 35 | Stdin, [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `TcpStream` [INFO] [stderr] --> src/prolog/machine/streams.rs:37:5 [INFO] [stderr] | [INFO] [stderr] 37 | TcpStream(TcpStream), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `stdin` [INFO] [stderr] --> src/prolog/machine/streams.rs:195:5 [INFO] [stderr] | [INFO] [stderr] 195 | / pub(crate) [INFO] [stderr] 196 | | fn stdin() -> Self { [INFO] [stderr] 197 | | Stream { [INFO] [stderr] 198 | | options: StreamOptions::default(), [INFO] [stderr] ... | [INFO] [stderr] 202 | | } [INFO] [stderr] 203 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] [INFO] [stderr] warning: 8 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 5m 45s [INFO] running `"docker" "inspect" "4091644e45db0cf71c1b45c259b4ad5e21930041f0c347654c80bb6083af0e22"` [INFO] running `"docker" "rm" "-f" "4091644e45db0cf71c1b45c259b4ad5e21930041f0c347654c80bb6083af0e22"` [INFO] [stdout] 4091644e45db0cf71c1b45c259b4ad5e21930041f0c347654c80bb6083af0e22 [INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"` [INFO] [stdout] 6ecb3eafdd28e0dfc425dc6f77a98ef3b34ec336a674cd5836523a88eef28e02 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "6ecb3eafdd28e0dfc425dc6f77a98ef3b34ec336a674cd5836523a88eef28e02"` [INFO] [stderr] Compiling scryer-prolog v0.8.120 (/opt/rustwide/workdir) [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/prolog/heap_print.rs:452:13 [INFO] [stderr] | [INFO] [stderr] 452 | (iter.next() == Some(']') && iter.next().is_none()) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/prolog/heap_print.rs:454:13 [INFO] [stderr] | [INFO] [stderr] 454 | (iter.next() == Some('}') && iter.next().is_none()) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Binary` [INFO] [stderr] --> src/prolog/machine/streams.rs:16:5 [INFO] [stderr] | [INFO] [stderr] 16 | Binary, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Error` [INFO] [stderr] --> src/prolog/machine/streams.rs:23:5 [INFO] [stderr] | [INFO] [stderr] 23 | Error, [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Reset` [INFO] [stderr] --> src/prolog/machine/streams.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | Reset, [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Stdin` [INFO] [stderr] --> src/prolog/machine/streams.rs:35:5 [INFO] [stderr] | [INFO] [stderr] 35 | Stdin, [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `TcpStream` [INFO] [stderr] --> src/prolog/machine/streams.rs:37:5 [INFO] [stderr] | [INFO] [stderr] 37 | TcpStream(TcpStream), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `stdin` [INFO] [stderr] --> src/prolog/machine/streams.rs:195:5 [INFO] [stderr] | [INFO] [stderr] 195 | / pub(crate) [INFO] [stderr] 196 | | fn stdin() -> Self { [INFO] [stderr] 197 | | Stream { [INFO] [stderr] 198 | | options: StreamOptions::default(), [INFO] [stderr] ... | [INFO] [stderr] 202 | | } [INFO] [stderr] 203 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `reset` [INFO] [stderr] --> src/prolog/machine/mod.rs:323:5 [INFO] [stderr] | [INFO] [stderr] 323 | pub fn reset(&mut self) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 9 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 7.58s [INFO] running `"docker" "inspect" "6ecb3eafdd28e0dfc425dc6f77a98ef3b34ec336a674cd5836523a88eef28e02"` [INFO] running `"docker" "rm" "-f" "6ecb3eafdd28e0dfc425dc6f77a98ef3b34ec336a674cd5836523a88eef28e02"` [INFO] [stdout] 6ecb3eafdd28e0dfc425dc6f77a98ef3b34ec336a674cd5836523a88eef28e02 [INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] cd167f0a9ef9b1c3868f379d4f4d457991413c8ba79cdd06607141a81aecfbf8 [INFO] running `"docker" "start" "-a" "cd167f0a9ef9b1c3868f379d4f4d457991413c8ba79cdd06607141a81aecfbf8"` [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/prolog/heap_print.rs:452:13 [INFO] [stderr] | [INFO] [stderr] 452 | (iter.next() == Some(']') && iter.next().is_none()) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/prolog/heap_print.rs:454:13 [INFO] [stderr] | [INFO] [stderr] 454 | (iter.next() == Some('}') && iter.next().is_none()) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Binary` [INFO] [stderr] --> src/prolog/machine/streams.rs:16:5 [INFO] [stderr] | [INFO] [stderr] 16 | Binary, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Error` [INFO] [stderr] --> src/prolog/machine/streams.rs:23:5 [INFO] [stderr] | [INFO] [stderr] 23 | Error, [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Reset` [INFO] [stderr] --> src/prolog/machine/streams.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | Reset, [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Stdin` [INFO] [stderr] --> src/prolog/machine/streams.rs:35:5 [INFO] [stderr] | [INFO] [stderr] 35 | Stdin, [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `TcpStream` [INFO] [stderr] --> src/prolog/machine/streams.rs:37:5 [INFO] [stderr] | [INFO] [stderr] 37 | TcpStream(TcpStream), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `stdin` [INFO] [stderr] --> src/prolog/machine/streams.rs:195:5 [INFO] [stderr] | [INFO] [stderr] 195 | / pub(crate) [INFO] [stderr] 196 | | fn stdin() -> Self { [INFO] [stderr] 197 | | Stream { [INFO] [stderr] 198 | | options: StreamOptions::default(), [INFO] [stderr] ... | [INFO] [stderr] 202 | | } [INFO] [stderr] 203 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `reset` [INFO] [stderr] --> src/prolog/machine/mod.rs:323:5 [INFO] [stderr] | [INFO] [stderr] 323 | pub fn reset(&mut self) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 9 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.39s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/scryer_prolog-0245aa43062bc40a [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 [INFO] [stdout] [INFO] running `"docker" "inspect" "cd167f0a9ef9b1c3868f379d4f4d457991413c8ba79cdd06607141a81aecfbf8"` [INFO] running `"docker" "rm" "-f" "cd167f0a9ef9b1c3868f379d4f4d457991413c8ba79cdd06607141a81aecfbf8"` [INFO] [stdout] cd167f0a9ef9b1c3868f379d4f4d457991413c8ba79cdd06607141a81aecfbf8