[INFO] cloning repository https://github.com/brson/piddle [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/brson/piddle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrson%2Fpiddle", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrson%2Fpiddle'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 740fc3718248a4cfc59df356c26209eb5f321494 [INFO] checking brson/piddle against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrson%2Fpiddle" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/brson/piddle on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/brson/piddle [INFO] finished tweaking git repo https://github.com/brson/piddle [INFO] tweaked toml for git repo https://github.com/brson/piddle written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/brson/piddle already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded string-interner v0.13.0 [INFO] [stderr] Downloaded str-buf v1.0.5 [INFO] [stderr] Downloaded error-code v2.3.0 [INFO] [stderr] Downloaded clipboard-win v4.2.1 [INFO] [stderr] Downloaded fd-lock v3.0.0 [INFO] [stderr] Downloaded minimal-lexical v0.1.2 [INFO] [stderr] Downloaded hecs v0.6.4 [INFO] [stderr] Downloaded nix v0.22.1 [INFO] [stderr] Downloaded rustyline v9.0.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] fe2492f78c5e52de0a8eae2d9c226fbf4af2f12f612f8df75f02dafb5218b02a [INFO] running `Command { std: "docker" "start" "-a" "fe2492f78c5e52de0a8eae2d9c226fbf4af2f12f612f8df75f02dafb5218b02a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fe2492f78c5e52de0a8eae2d9c226fbf4af2f12f612f8df75f02dafb5218b02a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fe2492f78c5e52de0a8eae2d9c226fbf4af2f12f612f8df75f02dafb5218b02a", kill_on_drop: false }` [INFO] [stdout] fe2492f78c5e52de0a8eae2d9c226fbf4af2f12f612f8df75f02dafb5218b02a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7d3f4b3d864643aaa54fa012a8e7ce0124c7749bd19fd106badaa174bb14800a [INFO] running `Command { std: "docker" "start" "-a" "7d3f4b3d864643aaa54fa012a8e7ce0124c7749bd19fd106badaa174bb14800a", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.99 [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling syn v1.0.74 [INFO] [stderr] Compiling ahash v0.7.4 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Checking once_cell v1.8.0 [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Compiling minimal-lexical v0.1.2 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling memoffset v0.6.4 [INFO] [stderr] Checking nibble_vec v0.1.0 [INFO] [stderr] Compiling nom v7.0.0 [INFO] [stderr] Compiling anyhow v1.0.43 [INFO] [stderr] Checking endian-type v0.1.2 [INFO] [stderr] Checking utf8parse v0.2.0 [INFO] [stderr] Checking radix_trie v0.2.1 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Checking getrandom v0.2.3 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking dirs-sys-next v0.1.2 [INFO] [stderr] Checking fd-lock v3.0.0 [INFO] [stderr] Checking nix v0.22.1 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking dirs-next v2.0.0 [INFO] [stderr] Checking hashbrown v0.11.2 [INFO] [stderr] Checking hecs v0.6.4 [INFO] [stderr] Checking string-interner v0.13.0 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling thiserror-impl v1.0.26 [INFO] [stderr] Compiling structopt-derive v0.4.15 [INFO] [stderr] Checking rustyline v9.0.0 [INFO] [stderr] Checking thiserror v1.0.26 [INFO] [stderr] Checking structopt v0.3.22 [INFO] [stderr] Checking piddle v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/compiler.rs:140:17 [INFO] [stdout] | [INFO] [stdout] 140 | drop(from_module_ctxt); [INFO] [stdout] | ^^^^^----------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut ModuleContext` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 140 - drop(from_module_ctxt); [INFO] [stdout] 140 + let _ = from_module_ctxt; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/compiler.rs:166:5 [INFO] [stdout] | [INFO] [stdout] 166 | drop(from_module_ctxt); [INFO] [stdout] | ^^^^^----------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut ModuleContext` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 166 - drop(from_module_ctxt); [INFO] [stdout] 166 + let _ = from_module_ctxt; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/compiler.rs:173:17 [INFO] [stdout] | [INFO] [stdout] 173 | drop(from_module_ctxt); [INFO] [stdout] | ^^^^^----------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut ModuleContext` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 173 - drop(from_module_ctxt); [INFO] [stdout] 173 + let _ = from_module_ctxt; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/compiler.rs:202:9 [INFO] [stdout] | [INFO] [stdout] 202 | drop(module_ctxt); [INFO] [stdout] | ^^^^^-----------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut ModuleContext` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 202 - drop(module_ctxt); [INFO] [stdout] 202 + let _ = module_ctxt; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/compiler.rs:224:9 [INFO] [stdout] | [INFO] [stdout] 224 | drop(module_ctxt); [INFO] [stdout] | ^^^^^-----------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut ModuleContext` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 224 - drop(module_ctxt); [INFO] [stdout] 224 + let _ = module_ctxt; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/compiler.rs:231:13 [INFO] [stdout] | [INFO] [stdout] 231 | drop(other_module_ctxt); [INFO] [stdout] | ^^^^^-----------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut ModuleContext` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 231 - drop(other_module_ctxt); [INFO] [stdout] 231 + let _ = other_module_ctxt; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/compiler.rs:246:9 [INFO] [stdout] | [INFO] [stdout] 246 | drop(other_module_ctxt); [INFO] [stdout] | ^^^^^-----------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut ModuleContext` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 246 - drop(other_module_ctxt); [INFO] [stdout] 246 + let _ = other_module_ctxt; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/compiler.rs:261:9 [INFO] [stdout] | [INFO] [stdout] 261 | drop(other_module_ctxt); [INFO] [stdout] | ^^^^^-----------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut ModuleContext` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 261 - drop(other_module_ctxt); [INFO] [stdout] 261 + let _ = other_module_ctxt; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/compiler.rs:140:17 [INFO] [stdout] | [INFO] [stdout] 140 | drop(from_module_ctxt); [INFO] [stdout] | ^^^^^----------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut ModuleContext` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 140 - drop(from_module_ctxt); [INFO] [stdout] 140 + let _ = from_module_ctxt; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/compiler.rs:166:5 [INFO] [stdout] | [INFO] [stdout] 166 | drop(from_module_ctxt); [INFO] [stdout] | ^^^^^----------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut ModuleContext` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 166 - drop(from_module_ctxt); [INFO] [stdout] 166 + let _ = from_module_ctxt; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/compiler.rs:173:17 [INFO] [stdout] | [INFO] [stdout] 173 | drop(from_module_ctxt); [INFO] [stdout] | ^^^^^----------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut ModuleContext` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 173 - drop(from_module_ctxt); [INFO] [stdout] 173 + let _ = from_module_ctxt; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/compiler.rs:202:9 [INFO] [stdout] | [INFO] [stdout] 202 | drop(module_ctxt); [INFO] [stdout] | ^^^^^-----------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut ModuleContext` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 202 - drop(module_ctxt); [INFO] [stdout] 202 + let _ = module_ctxt; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/compiler.rs:224:9 [INFO] [stdout] | [INFO] [stdout] 224 | drop(module_ctxt); [INFO] [stdout] | ^^^^^-----------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut ModuleContext` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 224 - drop(module_ctxt); [INFO] [stdout] 224 + let _ = module_ctxt; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/compiler.rs:231:13 [INFO] [stdout] | [INFO] [stdout] 231 | drop(other_module_ctxt); [INFO] [stdout] | ^^^^^-----------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut ModuleContext` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 231 - drop(other_module_ctxt); [INFO] [stdout] 231 + let _ = other_module_ctxt; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/compiler.rs:246:9 [INFO] [stdout] | [INFO] [stdout] 246 | drop(other_module_ctxt); [INFO] [stdout] | ^^^^^-----------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut ModuleContext` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 246 - drop(other_module_ctxt); [INFO] [stdout] 246 + let _ = other_module_ctxt; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/compiler.rs:261:9 [INFO] [stdout] | [INFO] [stdout] 261 | drop(other_module_ctxt); [INFO] [stdout] | ^^^^^-----------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut ModuleContext` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 261 - drop(other_module_ctxt); [INFO] [stdout] 261 + let _ = other_module_ctxt; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.05s [INFO] running `Command { std: "docker" "inspect" "7d3f4b3d864643aaa54fa012a8e7ce0124c7749bd19fd106badaa174bb14800a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7d3f4b3d864643aaa54fa012a8e7ce0124c7749bd19fd106badaa174bb14800a", kill_on_drop: false }` [INFO] [stdout] 7d3f4b3d864643aaa54fa012a8e7ce0124c7749bd19fd106badaa174bb14800a [INFO] checking brson/piddle against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrson%2Fpiddle" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/brson/piddle on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/brson/piddle [INFO] finished tweaking git repo https://github.com/brson/piddle [INFO] tweaked toml for git repo https://github.com/brson/piddle written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/brson/piddle already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1be6a50c46dd96f8ba5421c7b155b39d72a66fe5a314494e86c6a61fe2be6fd6 [INFO] running `Command { std: "docker" "start" "-a" "1be6a50c46dd96f8ba5421c7b155b39d72a66fe5a314494e86c6a61fe2be6fd6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1be6a50c46dd96f8ba5421c7b155b39d72a66fe5a314494e86c6a61fe2be6fd6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1be6a50c46dd96f8ba5421c7b155b39d72a66fe5a314494e86c6a61fe2be6fd6", kill_on_drop: false }` [INFO] [stdout] 1be6a50c46dd96f8ba5421c7b155b39d72a66fe5a314494e86c6a61fe2be6fd6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e293958f9efde7d57eb61d50f8efd5811413028ac10610ea86b18a9103f88735 [INFO] running `Command { std: "docker" "start" "-a" "e293958f9efde7d57eb61d50f8efd5811413028ac10610ea86b18a9103f88735", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.99 [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling syn v1.0.74 [INFO] [stderr] Compiling ahash v0.7.4 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Checking once_cell v1.8.0 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling minimal-lexical v0.1.2 [INFO] [stderr] Compiling memoffset v0.6.4 [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Checking nibble_vec v0.1.0 [INFO] [stderr] Compiling nom v7.0.0 [INFO] [stderr] Compiling anyhow v1.0.43 [INFO] [stderr] Checking endian-type v0.1.2 [INFO] [stderr] Checking utf8parse v0.2.0 [INFO] [stderr] Checking radix_trie v0.2.1 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Checking getrandom v0.2.3 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking dirs-sys-next v0.1.2 [INFO] [stderr] Checking nix v0.22.1 [INFO] [stderr] Checking fd-lock v3.0.0 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking dirs-next v2.0.0 [INFO] [stderr] Checking hashbrown v0.11.2 [INFO] [stderr] Checking hecs v0.6.4 [INFO] [stderr] Checking string-interner v0.13.0 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling structopt-derive v0.4.15 [INFO] [stderr] Compiling thiserror-impl v1.0.26 [INFO] [stderr] Checking rustyline v9.0.0 [INFO] [stderr] Checking thiserror v1.0.26 [INFO] [stderr] Checking structopt v0.3.22 [INFO] [stderr] Checking piddle v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/compiler.rs:140:17 [INFO] [stdout] | [INFO] [stdout] 140 | drop(from_module_ctxt); [INFO] [stdout] | ^^^^^----------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut ModuleContext` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 140 - drop(from_module_ctxt); [INFO] [stdout] 140 + let _ = from_module_ctxt; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/compiler.rs:166:5 [INFO] [stdout] | [INFO] [stdout] 166 | drop(from_module_ctxt); [INFO] [stdout] | ^^^^^----------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut ModuleContext` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 166 - drop(from_module_ctxt); [INFO] [stdout] 166 + let _ = from_module_ctxt; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/compiler.rs:173:17 [INFO] [stdout] | [INFO] [stdout] 173 | drop(from_module_ctxt); [INFO] [stdout] | ^^^^^----------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut ModuleContext` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 173 - drop(from_module_ctxt); [INFO] [stdout] 173 + let _ = from_module_ctxt; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/compiler.rs:202:9 [INFO] [stdout] | [INFO] [stdout] 202 | drop(module_ctxt); [INFO] [stdout] | ^^^^^-----------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut ModuleContext` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 202 - drop(module_ctxt); [INFO] [stdout] 202 + let _ = module_ctxt; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/compiler.rs:224:9 [INFO] [stdout] | [INFO] [stdout] 224 | drop(module_ctxt); [INFO] [stdout] | ^^^^^-----------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut ModuleContext` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 224 - drop(module_ctxt); [INFO] [stdout] 224 + let _ = module_ctxt; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/compiler.rs:231:13 [INFO] [stdout] | [INFO] [stdout] 231 | drop(other_module_ctxt); [INFO] [stdout] | ^^^^^-----------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut ModuleContext` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 231 - drop(other_module_ctxt); [INFO] [stdout] 231 + let _ = other_module_ctxt; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/compiler.rs:246:9 [INFO] [stdout] | [INFO] [stdout] 246 | drop(other_module_ctxt); [INFO] [stdout] | ^^^^^-----------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut ModuleContext` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 246 - drop(other_module_ctxt); [INFO] [stdout] 246 + let _ = other_module_ctxt; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/compiler.rs:261:9 [INFO] [stdout] | [INFO] [stdout] 261 | drop(other_module_ctxt); [INFO] [stdout] | ^^^^^-----------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut ModuleContext` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 261 - drop(other_module_ctxt); [INFO] [stdout] 261 + let _ = other_module_ctxt; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/compiler.rs:140:17 [INFO] [stdout] | [INFO] [stdout] 140 | drop(from_module_ctxt); [INFO] [stdout] | ^^^^^----------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut ModuleContext` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 140 - drop(from_module_ctxt); [INFO] [stdout] 140 + let _ = from_module_ctxt; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/compiler.rs:166:5 [INFO] [stdout] | [INFO] [stdout] 166 | drop(from_module_ctxt); [INFO] [stdout] | ^^^^^----------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut ModuleContext` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 166 - drop(from_module_ctxt); [INFO] [stdout] 166 + let _ = from_module_ctxt; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/compiler.rs:173:17 [INFO] [stdout] | [INFO] [stdout] 173 | drop(from_module_ctxt); [INFO] [stdout] | ^^^^^----------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut ModuleContext` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 173 - drop(from_module_ctxt); [INFO] [stdout] 173 + let _ = from_module_ctxt; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/compiler.rs:202:9 [INFO] [stdout] | [INFO] [stdout] 202 | drop(module_ctxt); [INFO] [stdout] | ^^^^^-----------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut ModuleContext` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 202 - drop(module_ctxt); [INFO] [stdout] 202 + let _ = module_ctxt; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/compiler.rs:224:9 [INFO] [stdout] | [INFO] [stdout] 224 | drop(module_ctxt); [INFO] [stdout] | ^^^^^-----------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut ModuleContext` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 224 - drop(module_ctxt); [INFO] [stdout] 224 + let _ = module_ctxt; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/compiler.rs:231:13 [INFO] [stdout] | [INFO] [stdout] 231 | drop(other_module_ctxt); [INFO] [stdout] | ^^^^^-----------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut ModuleContext` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 231 - drop(other_module_ctxt); [INFO] [stdout] 231 + let _ = other_module_ctxt; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/compiler.rs:246:9 [INFO] [stdout] | [INFO] [stdout] 246 | drop(other_module_ctxt); [INFO] [stdout] | ^^^^^-----------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut ModuleContext` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 246 - drop(other_module_ctxt); [INFO] [stdout] 246 + let _ = other_module_ctxt; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/compiler.rs:261:9 [INFO] [stdout] | [INFO] [stdout] 261 | drop(other_module_ctxt); [INFO] [stdout] | ^^^^^-----------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut ModuleContext` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 261 - drop(other_module_ctxt); [INFO] [stdout] 261 + let _ = other_module_ctxt; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.06s [INFO] running `Command { std: "docker" "inspect" "e293958f9efde7d57eb61d50f8efd5811413028ac10610ea86b18a9103f88735", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e293958f9efde7d57eb61d50f8efd5811413028ac10610ea86b18a9103f88735", kill_on_drop: false }` [INFO] [stdout] e293958f9efde7d57eb61d50f8efd5811413028ac10610ea86b18a9103f88735