[INFO] cloning repository https://github.com/LogoiLab/fuc [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LogoiLab/fuc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLogoiLab%2Ffuc", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLogoiLab%2Ffuc'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4478463fa5dcd07ac9d14e89ebf078c6e110c1b3 [INFO] checking LogoiLab/fuc/4478463fa5dcd07ac9d14e89ebf078c6e110c1b3 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLogoiLab%2Ffuc" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/LogoiLab/fuc on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/LogoiLab/fuc [INFO] finished tweaking git repo https://github.com/LogoiLab/fuc [INFO] tweaked toml for git repo https://github.com/LogoiLab/fuc written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/LogoiLab/fuc 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4bd2cb85fc91e4ad172d228b4a3e7fe514c0f09de3a792951c47d07f0ab9a1b3 [INFO] running `Command { std: "docker" "start" "-a" "4bd2cb85fc91e4ad172d228b4a3e7fe514c0f09de3a792951c47d07f0ab9a1b3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4bd2cb85fc91e4ad172d228b4a3e7fe514c0f09de3a792951c47d07f0ab9a1b3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4bd2cb85fc91e4ad172d228b4a3e7fe514c0f09de3a792951c47d07f0ab9a1b3", kill_on_drop: false }` [INFO] [stdout] 4bd2cb85fc91e4ad172d228b4a3e7fe514c0f09de3a792951c47d07f0ab9a1b3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Dtail_expr_drop_order" "-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] fc61e9c0a15fbe3c8c81b4ac09fece0b5c663b1f94159020086d273cd2736864 [INFO] running `Command { std: "docker" "start" "-a" "fc61e9c0a15fbe3c8c81b4ac09fece0b5c663b1f94159020086d273cd2736864", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.48 [INFO] [stderr] Compiling cc v1.0.29 [INFO] [stderr] Compiling proc-macro2 v0.4.27 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling serde v1.0.87 [INFO] [stderr] Compiling autocfg v0.1.2 [INFO] [stderr] Compiling ryu v0.2.7 [INFO] [stderr] Compiling rustc-demangle v0.1.13 [INFO] [stderr] Compiling cfg-if v0.1.6 [INFO] [stderr] Compiling pulldown-cmark v0.2.0 [INFO] [stderr] Compiling itoa v0.4.3 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling backtrace v0.3.13 [INFO] [stderr] Compiling bitflags v1.0.4 [INFO] [stderr] Compiling remove_dir_all v0.5.1 [INFO] [stderr] Compiling same-file v1.0.4 [INFO] [stderr] Compiling bytecount v0.4.0 [INFO] [stderr] Compiling rand v0.4.6 [INFO] [stderr] Compiling walkdir v2.2.7 [INFO] [stderr] Compiling glob v0.2.11 [INFO] [stderr] Compiling quote v0.6.11 [INFO] [stderr] Compiling backtrace-sys v0.1.28 [INFO] [stderr] Compiling lz4-sys v1.8.3 [INFO] [stderr] Compiling syn v0.15.26 [INFO] [stderr] Compiling tempdir v0.3.7 [INFO] [stderr] Compiling error-chain v0.12.0 [INFO] [stderr] Compiling serde_derive v1.0.87 [INFO] [stderr] Compiling serde_json v1.0.38 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling cargo_metadata v0.6.4 [INFO] [stderr] Compiling skeptic v0.13.4 [INFO] [stderr] Compiling lz4 v1.23.1 [INFO] [stderr] Checking fuc v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `fuc::block::Block` [INFO] [stdout] --> src/main.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use fuc::block::Block; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `fuc::block::Block` [INFO] [stdout] --> src/main.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use fuc::block::Block; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/fuc/block.rs:49:9 [INFO] [stdout] | [INFO] [stdout] 48 | unimplemented!(); [INFO] [stdout] | ---------------- any code following this expression is unreachable [INFO] [stdout] 49 | self.dirty = false; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/fuc/descriptor.rs:61:9 [INFO] [stdout] | [INFO] [stdout] 60 | unimplemented!(); [INFO] [stdout] | ---------------- any code following this expression is unreachable [INFO] [stdout] 61 | self.dirty = false; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/fuc/fat.rs:28:9 [INFO] [stdout] | [INFO] [stdout] 27 | unimplemented!(); [INFO] [stdout] | ---------------- any code following this expression is unreachable [INFO] [stdout] 28 | self.dirty = false; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/fuc/file.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 13 | unimplemented!(); [INFO] [stdout] | ---------------- any code following this expression is unreachable [INFO] [stdout] 14 | self.dirty = false; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/fuc/volume.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 18 | unimplemented!(); [INFO] [stdout] | ---------------- any code following this expression is unreachable [INFO] [stdout] 19 | self.dirty = false; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `writer` [INFO] [stdout] --> src/fuc/block.rs:47:29 [INFO] [stdout] | [INFO] [stdout] 47 | pub fn write(&mut self, writer: Writer) -> Writer { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/fuc/block.rs:49:9 [INFO] [stdout] | [INFO] [stdout] 48 | unimplemented!(); [INFO] [stdout] | ---------------- any code following this expression is unreachable [INFO] [stdout] 49 | self.dirty = false; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `writer` [INFO] [stdout] --> src/fuc/descriptor.rs:59:29 [INFO] [stdout] | [INFO] [stdout] 59 | pub fn write(&mut self, writer: Writer) -> Writer { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/fuc/descriptor.rs:61:9 [INFO] [stdout] | [INFO] [stdout] 60 | unimplemented!(); [INFO] [stdout] | ---------------- any code following this expression is unreachable [INFO] [stdout] 61 | self.dirty = false; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/fuc/fat.rs:28:9 [INFO] [stdout] | [INFO] [stdout] 27 | unimplemented!(); [INFO] [stdout] | ---------------- any code following this expression is unreachable [INFO] [stdout] 28 | self.dirty = false; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `writer` [INFO] [stdout] --> src/fuc/fat.rs:26:29 [INFO] [stdout] | [INFO] [stdout] 26 | pub fn write(&mut self, writer: Writer) -> Writer { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `writer` [INFO] [stdout] --> src/fuc/file.rs:12:29 [INFO] [stdout] | [INFO] [stdout] 12 | pub fn write(&mut self, writer: Writer) -> Writer { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `writer` [INFO] [stdout] --> src/fuc/volume.rs:17:29 [INFO] [stdout] | [INFO] [stdout] 17 | pub fn write(&mut self, writer: Writer) -> Writer { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `offset` is never read [INFO] [stdout] --> src/fuc/block.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct Block { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] ... [INFO] [stdout] 10 | offset: usize, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `block_id` is never read [INFO] [stdout] --> src/fuc/descriptor.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 6 | pub struct FileDescriptor { [INFO] [stdout] | -------------- field in this struct [INFO] [stdout] 7 | block_id: [u8; 2], [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `FileDescriptor` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `fdesc` is never read [INFO] [stdout] --> src/fuc/fat.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct FileAllocationTable { [INFO] [stdout] | ------------------- field in this struct [INFO] [stdout] 8 | fdesc: Vec, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `desc` and `blocks` are never read [INFO] [stdout] --> src/fuc/file.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 5 | pub struct File { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 6 | desc: FileDescriptor, [INFO] [stdout] | ^^^^ [INFO] [stdout] 7 | blocks: Vec, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `magic`, `fat`, and `files` are never read [INFO] [stdout] --> src/fuc/volume.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 9 | pub struct Volume { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 10 | magic: [u8; MAGIC_LENGTH], [INFO] [stdout] | ^^^^^ [INFO] [stdout] 11 | fat: FileAllocationTable, [INFO] [stdout] | ^^^ [INFO] [stdout] 12 | files: Vec, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/fuc/file.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 13 | unimplemented!(); [INFO] [stdout] | ---------------- any code following this expression is unreachable [INFO] [stdout] 14 | self.dirty = false; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/fuc/volume.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 18 | unimplemented!(); [INFO] [stdout] | ---------------- any code following this expression is unreachable [INFO] [stdout] 19 | self.dirty = false; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `writer` [INFO] [stdout] --> src/fuc/block.rs:47:29 [INFO] [stdout] | [INFO] [stdout] 47 | pub fn write(&mut self, writer: Writer) -> Writer { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `writer` [INFO] [stdout] --> src/fuc/descriptor.rs:59:29 [INFO] [stdout] | [INFO] [stdout] 59 | pub fn write(&mut self, writer: Writer) -> Writer { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 16 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `writer` [INFO] [stdout] --> src/fuc/fat.rs:26:29 [INFO] [stdout] | [INFO] [stdout] 26 | pub fn write(&mut self, writer: Writer) -> Writer { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `writer` [INFO] [stdout] --> src/fuc/file.rs:12:29 [INFO] [stdout] | [INFO] [stdout] 12 | pub fn write(&mut self, writer: Writer) -> Writer { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `writer` [INFO] [stdout] --> src/fuc/volume.rs:17:29 [INFO] [stdout] | [INFO] [stdout] 17 | pub fn write(&mut self, writer: Writer) -> Writer { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `offset` is never read [INFO] [stdout] --> src/fuc/block.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct Block { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] ... [INFO] [stdout] 10 | offset: usize, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `block_id` is never read [INFO] [stdout] --> src/fuc/descriptor.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 6 | pub struct FileDescriptor { [INFO] [stdout] | -------------- field in this struct [INFO] [stdout] 7 | block_id: [u8; 2], [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `FileDescriptor` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `fdesc` is never read [INFO] [stdout] --> src/fuc/fat.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct FileAllocationTable { [INFO] [stdout] | ------------------- field in this struct [INFO] [stdout] 8 | fdesc: Vec, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `desc` and `blocks` are never read [INFO] [stdout] --> src/fuc/file.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 5 | pub struct File { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 6 | desc: FileDescriptor, [INFO] [stdout] | ^^^^ [INFO] [stdout] 7 | blocks: Vec, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `magic`, `fat`, and `files` are never read [INFO] [stdout] --> src/fuc/volume.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 9 | pub struct Volume { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 10 | magic: [u8; MAGIC_LENGTH], [INFO] [stdout] | ^^^^^ [INFO] [stdout] 11 | fat: FileAllocationTable, [INFO] [stdout] | ^^^ [INFO] [stdout] 12 | files: Vec, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 16 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 27.74s [INFO] running `Command { std: "docker" "inspect" "fc61e9c0a15fbe3c8c81b4ac09fece0b5c663b1f94159020086d273cd2736864", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fc61e9c0a15fbe3c8c81b4ac09fece0b5c663b1f94159020086d273cd2736864", kill_on_drop: false }` [INFO] [stdout] fc61e9c0a15fbe3c8c81b4ac09fece0b5c663b1f94159020086d273cd2736864