[INFO] fetching crate smetamath 3.0.0... [INFO] checking smetamath-3.0.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate smetamath 3.0.0 into /workspace/builds/worker-4-tc1/source [INFO] validating manifest of crates.io crate smetamath 3.0.0 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate smetamath 3.0.0 [INFO] finished tweaking crates.io crate smetamath 3.0.0 [INFO] tweaked toml for crates.io crate smetamath 3.0.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 18 packages [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.5.0) [INFO] [stderr] Adding cfg-if v0.1.10 (latest: v1.0.0) [INFO] [stderr] Adding clap v2.34.0 (latest: v4.5.4) [INFO] [stderr] Adding filetime v0.1.15 (latest: v0.2.23) [INFO] [stderr] Adding hermit-abi v0.1.19 (latest: v0.3.9) [INFO] [stderr] Adding redox_syscall v0.1.57 (latest: v0.5.1) [INFO] [stderr] Adding strsim v0.8.0 (latest: v0.11.1) [INFO] [stderr] Adding textwrap v0.11.0 (latest: v0.16.1) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded filetime v0.1.15 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 45d3026b2bf8053016f0c89f862b922cad4c235702e4fc61f1e35ac62aa037f5 [INFO] running `Command { std: "docker" "start" "-a" "45d3026b2bf8053016f0c89f862b922cad4c235702e4fc61f1e35ac62aa037f5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "45d3026b2bf8053016f0c89f862b922cad4c235702e4fc61f1e35ac62aa037f5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "45d3026b2bf8053016f0c89f862b922cad4c235702e4fc61f1e35ac62aa037f5", kill_on_drop: false }` [INFO] [stdout] 45d3026b2bf8053016f0c89f862b922cad4c235702e4fc61f1e35ac62aa037f5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 770f75817416444707768aeb7a60a8c612520bbeb0ac22d3893a0af5bc31164d [INFO] running `Command { std: "docker" "start" "-a" "770f75817416444707768aeb7a60a8c612520bbeb0ac22d3893a0af5bc31164d", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Checking unicode-width v0.1.11 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking fnv v1.0.7 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking filetime v0.1.15 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking smetamath v3.0.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/segment_set.rs:190:28 [INFO] [stdout] | [INFO] [stdout] 190 | let metadata = try!(fs::metadata(&path)); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/segment_set.rs:199:21 [INFO] [stdout] | [INFO] [stdout] 199 | try!(fh.read_to_end(&mut buf)); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/segment_set.rs:196:34 [INFO] [stdout] | [INFO] [stdout] 196 | let mut fh = try!(File::open(&path)); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/segment_set.rs:190:28 [INFO] [stdout] | [INFO] [stdout] 190 | let metadata = try!(fs::metadata(&path)); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/segment_set.rs:199:21 [INFO] [stdout] | [INFO] [stdout] 199 | try!(fh.read_to_end(&mut buf)); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/segment_set.rs:196:34 [INFO] [stdout] | [INFO] [stdout] 196 | let mut fh = try!(File::open(&path)); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/database.rs:29:23 [INFO] [stdout] | [INFO] [stdout] 29 | struct Job(usize, Box); [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 29 | struct Job(usize, Box); [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/database.rs:133:27 [INFO] [stdout] | [INFO] [stdout] 133 | pub struct Promise(Box T + Send>); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 133 | pub struct Promise(Box T + Send>); [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/database.rs:29:23 [INFO] [stdout] | [INFO] [stdout] 29 | struct Job(usize, Box); [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 29 | struct Job(usize, Box); [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/database.rs:133:27 [INFO] [stdout] | [INFO] [stdout] 133 | pub struct Promise(Box T + Send>); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 133 | pub struct Promise(Box T + Send>); [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/database.rs:61:60 [INFO] [stdout] | [INFO] [stdout] 61 | fn queue_work(exec: &Executor, estimate: usize, mut f: Box) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 61 | fn queue_work(exec: &Executor, estimate: usize, mut f: Box) { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/database.rs:61:60 [INFO] [stdout] | [INFO] [stdout] 61 | fn queue_work(exec: &Executor, estimate: usize, mut f: Box) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 61 | fn queue_work(exec: &Executor, estimate: usize, mut f: Box) { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/database.rs:247:25 [INFO] [stdout] | [INFO] [stdout] 247 | let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap()); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/database.rs:247:25 [INFO] [stdout] | [INFO] [stdout] 247 | let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap()); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/database.rs:268:25 [INFO] [stdout] | [INFO] [stdout] 268 | let mut ns = Arc::make_mut(self.prev_scopes.as_mut().unwrap()); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/database.rs:268:25 [INFO] [stdout] | [INFO] [stdout] 268 | let mut ns = Arc::make_mut(self.prev_scopes.as_mut().unwrap()); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/database.rs:291:25 [INFO] [stdout] | [INFO] [stdout] 291 | let mut ver = Arc::make_mut(self.prev_verify.as_mut().unwrap()); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/database.rs:291:25 [INFO] [stdout] | [INFO] [stdout] 291 | let mut ver = Arc::make_mut(self.prev_verify.as_mut().unwrap()); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `const_address` is never read [INFO] [stdout] --> src/nameck.rs:284:9 [INFO] [stdout] | [INFO] [stdout] 278 | pub struct LookupSymbol { [INFO] [stdout] | ------------ field in this struct [INFO] [stdout] ... [INFO] [stdout] 284 | pub const_address: Option, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `label` and `typecode` are never read [INFO] [stdout] --> src/nameck.rs:290:9 [INFO] [stdout] | [INFO] [stdout] 287 | pub struct LookupFloat<'a> { [INFO] [stdout] | ----------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 290 | pub label: TokenPtr<'a>, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 291 | pub typecode: TokenPtr<'a>, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `address` is never read [INFO] [stdout] --> src/nameck.rs:296:9 [INFO] [stdout] | [INFO] [stdout] 295 | pub struct LookupGlobalDv<'a> { [INFO] [stdout] | -------------- field in this struct [INFO] [stdout] 296 | pub address: StatementAddress, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `label` is never read [INFO] [stdout] --> src/scopeck.rs:84:5 [INFO] [stdout] | [INFO] [stdout] 82 | struct LocalEssentialInfo<'a> { [INFO] [stdout] | ------------------ field in this struct [INFO] [stdout] 83 | valid: GlobalRange, [INFO] [stdout] 84 | label: TokenPtr<'a>, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `LocalEssentialInfo` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `text` is never read [INFO] [stdout] --> src/segment_set.rs:44:9 [INFO] [stdout] | [INFO] [stdout] 42 | pub struct SourceInfo { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] 43 | pub name: String, [INFO] [stdout] 44 | pub text: Arc>, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `SourceInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `const_address` is never read [INFO] [stdout] --> src/nameck.rs:284:9 [INFO] [stdout] | [INFO] [stdout] 278 | pub struct LookupSymbol { [INFO] [stdout] | ------------ field in this struct [INFO] [stdout] ... [INFO] [stdout] 284 | pub const_address: Option, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `label` and `typecode` are never read [INFO] [stdout] --> src/nameck.rs:290:9 [INFO] [stdout] | [INFO] [stdout] 287 | pub struct LookupFloat<'a> { [INFO] [stdout] | ----------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 290 | pub label: TokenPtr<'a>, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 291 | pub typecode: TokenPtr<'a>, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `address` is never read [INFO] [stdout] --> src/nameck.rs:296:9 [INFO] [stdout] | [INFO] [stdout] 295 | pub struct LookupGlobalDv<'a> { [INFO] [stdout] | -------------- field in this struct [INFO] [stdout] 296 | pub address: StatementAddress, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `label` is never read [INFO] [stdout] --> src/scopeck.rs:84:5 [INFO] [stdout] | [INFO] [stdout] 82 | struct LocalEssentialInfo<'a> { [INFO] [stdout] | ------------------ field in this struct [INFO] [stdout] 83 | valid: GlobalRange, [INFO] [stdout] 84 | label: TokenPtr<'a>, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `LocalEssentialInfo` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `text` is never read [INFO] [stdout] --> src/segment_set.rs:44:9 [INFO] [stdout] | [INFO] [stdout] 42 | pub struct SourceInfo { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] 43 | pub name: String, [INFO] [stdout] 44 | pub text: Arc>, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `SourceInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/util.rs:60:5 [INFO] [stdout] | [INFO] [stdout] 60 | &vec[from]; // for the bounds check [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] 60 | let _ = &vec[from]; // for the bounds check [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/util.rs:60:5 [INFO] [stdout] | [INFO] [stdout] 60 | &vec[from]; // for the bounds check [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] 60 | let _ = &vec[from]; // for the bounds check [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 15 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 15 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [optimized + debuginfo] target(s) in 1.60s [INFO] running `Command { std: "docker" "inspect" "770f75817416444707768aeb7a60a8c612520bbeb0ac22d3893a0af5bc31164d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "770f75817416444707768aeb7a60a8c612520bbeb0ac22d3893a0af5bc31164d", kill_on_drop: false }` [INFO] [stdout] 770f75817416444707768aeb7a60a8c612520bbeb0ac22d3893a0af5bc31164d [INFO] checking smetamath-3.0.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate smetamath 3.0.0 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate smetamath 3.0.0 on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate smetamath 3.0.0 [INFO] finished tweaking crates.io crate smetamath 3.0.0 [INFO] tweaked toml for crates.io crate smetamath 3.0.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d4b478e3acc7247c9fe8ead13148961c21e9a76b8ae8a6f03308a3c7e416df68 [INFO] running `Command { std: "docker" "start" "-a" "d4b478e3acc7247c9fe8ead13148961c21e9a76b8ae8a6f03308a3c7e416df68", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d4b478e3acc7247c9fe8ead13148961c21e9a76b8ae8a6f03308a3c7e416df68", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d4b478e3acc7247c9fe8ead13148961c21e9a76b8ae8a6f03308a3c7e416df68", kill_on_drop: false }` [INFO] [stdout] d4b478e3acc7247c9fe8ead13148961c21e9a76b8ae8a6f03308a3c7e416df68 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] dfaa19a97b11a76b8ece9cb0308535ef86d51681f58f99beb8d4dcd69c73f390 [INFO] running `Command { std: "docker" "start" "-a" "dfaa19a97b11a76b8ece9cb0308535ef86d51681f58f99beb8d4dcd69c73f390", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Checking unicode-width v0.1.11 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking fnv v1.0.7 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking filetime v0.1.15 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking smetamath v3.0.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/segment_set.rs:190:28 [INFO] [stdout] | [INFO] [stdout] 190 | let metadata = try!(fs::metadata(&path)); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/segment_set.rs:199:21 [INFO] [stdout] | [INFO] [stdout] 199 | try!(fh.read_to_end(&mut buf)); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/segment_set.rs:196:34 [INFO] [stdout] | [INFO] [stdout] 196 | let mut fh = try!(File::open(&path)); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/segment_set.rs:190:28 [INFO] [stdout] | [INFO] [stdout] 190 | let metadata = try!(fs::metadata(&path)); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/segment_set.rs:199:21 [INFO] [stdout] | [INFO] [stdout] 199 | try!(fh.read_to_end(&mut buf)); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/segment_set.rs:196:34 [INFO] [stdout] | [INFO] [stdout] 196 | let mut fh = try!(File::open(&path)); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/database.rs:29:23 [INFO] [stdout] | [INFO] [stdout] 29 | struct Job(usize, Box); [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 29 | struct Job(usize, Box); [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/database.rs:133:27 [INFO] [stdout] | [INFO] [stdout] 133 | pub struct Promise(Box T + Send>); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 133 | pub struct Promise(Box T + Send>); [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/database.rs:29:23 [INFO] [stdout] | [INFO] [stdout] 29 | struct Job(usize, Box); [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 29 | struct Job(usize, Box); [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/database.rs:133:27 [INFO] [stdout] | [INFO] [stdout] 133 | pub struct Promise(Box T + Send>); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 133 | pub struct Promise(Box T + Send>); [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/database.rs:61:60 [INFO] [stdout] | [INFO] [stdout] 61 | fn queue_work(exec: &Executor, estimate: usize, mut f: Box) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 61 | fn queue_work(exec: &Executor, estimate: usize, mut f: Box) { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/database.rs:61:60 [INFO] [stdout] | [INFO] [stdout] 61 | fn queue_work(exec: &Executor, estimate: usize, mut f: Box) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 61 | fn queue_work(exec: &Executor, estimate: usize, mut f: Box) { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0283]: type annotations needed [INFO] [stdout] --> src/database.rs:80:31 [INFO] [stdout] | [INFO] [stdout] 80 | thread::spawn(move || { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: cannot satisfy `_: Send` [INFO] [stdout] note: required by a bound in `spawn` [INFO] [stdout] --> /rustc/3a4bc97f6385a3aa300a4fd689b44350e54fd676/library/std/src/thread/mod.rs:672:1 [INFO] [stdout] help: try giving this closure an explicit return type [INFO] [stdout] | [INFO] [stdout] 80 | thread::spawn(move || -> /* Type */ { [INFO] [stdout] | +++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0283]: type annotations needed [INFO] [stdout] --> src/database.rs:80:31 [INFO] [stdout] | [INFO] [stdout] 80 | thread::spawn(move || { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: cannot satisfy `_: Send` [INFO] [stdout] note: required by a bound in `spawn` [INFO] [stdout] --> /rustc/3a4bc97f6385a3aa300a4fd689b44350e54fd676/library/std/src/thread/mod.rs:672:1 [INFO] [stdout] help: try giving this closure an explicit return type [INFO] [stdout] | [INFO] [stdout] 80 | thread::spawn(move || -> /* Type */ { [INFO] [stdout] | +++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/database.rs:247:25 [INFO] [stdout] | [INFO] [stdout] 247 | let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap()); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/database.rs:268:25 [INFO] [stdout] | [INFO] [stdout] 268 | let mut ns = Arc::make_mut(self.prev_scopes.as_mut().unwrap()); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/database.rs:291:25 [INFO] [stdout] | [INFO] [stdout] 291 | let mut ver = Arc::make_mut(self.prev_verify.as_mut().unwrap()); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/database.rs:247:25 [INFO] [stdout] | [INFO] [stdout] 247 | let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap()); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/database.rs:268:25 [INFO] [stdout] | [INFO] [stdout] 268 | let mut ns = Arc::make_mut(self.prev_scopes.as_mut().unwrap()); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/database.rs:291:25 [INFO] [stdout] | [INFO] [stdout] 291 | let mut ver = Arc::make_mut(self.prev_verify.as_mut().unwrap()); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0283`. [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0283`. [INFO] [stdout] [INFO] [stderr] error: could not compile `smetamath` (bin "smetamath" test) due to 2 previous errors; 9 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `smetamath` (bin "smetamath") due to 2 previous errors; 9 warnings emitted [INFO] running `Command { std: "docker" "inspect" "dfaa19a97b11a76b8ece9cb0308535ef86d51681f58f99beb8d4dcd69c73f390", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dfaa19a97b11a76b8ece9cb0308535ef86d51681f58f99beb8d4dcd69c73f390", kill_on_drop: false }` [INFO] [stdout] dfaa19a97b11a76b8ece9cb0308535ef86d51681f58f99beb8d4dcd69c73f390