[INFO] cloning repository https://github.com/yzyDavid/YBase [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yzyDavid/YBase" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FyzyDavid%2FYBase", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FyzyDavid%2FYBase'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6ff6c15216bafcfe6da83c1683fb7178d9e6926b [INFO] checking yzyDavid/YBase against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FyzyDavid%2FYBase" "/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/yzyDavid/YBase on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/yzyDavid/YBase [INFO] finished tweaking git repo https://github.com/yzyDavid/YBase [INFO] tweaked toml for git repo https://github.com/yzyDavid/YBase written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/yzyDavid/YBase 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded serde v1.0.98 [INFO] [stderr] Downloaded cc v1.0.38 [INFO] [stderr] Downloaded regex v1.2.0 [INFO] [stderr] Downloaded syn v0.15.42 [INFO] [stderr] Downloaded regex-syntax v0.6.10 [INFO] [stderr] Downloaded serde_derive v1.0.98 [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6a13a0e72ca9871a0b288bf067323868261e83d7df0e666d50794461e2a7634e [INFO] running `Command { std: "docker" "start" "-a" "6a13a0e72ca9871a0b288bf067323868261e83d7df0e666d50794461e2a7634e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6a13a0e72ca9871a0b288bf067323868261e83d7df0e666d50794461e2a7634e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6a13a0e72ca9871a0b288bf067323868261e83d7df0e666d50794461e2a7634e", kill_on_drop: false }` [INFO] [stdout] 6a13a0e72ca9871a0b288bf067323868261e83d7df0e666d50794461e2a7634e [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8d2e5a4cd27a01b798c92e84369f7dae9346cc7eeff01899e2ae664364314dea [INFO] running `Command { std: "docker" "start" "-a" "8d2e5a4cd27a01b798c92e84369f7dae9346cc7eeff01899e2ae664364314dea", kill_on_drop: false }` [INFO] [stderr] Checking rand_core v0.4.0 [INFO] [stderr] Compiling autocfg v0.1.5 [INFO] [stderr] Compiling libc v0.2.60 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling syn v0.15.42 [INFO] [stderr] Checking lazy_static v1.3.0 [INFO] [stderr] Compiling serde v1.0.98 [INFO] [stderr] Compiling ryu v1.0.0 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking ucd-util v0.1.5 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking regex-syntax v0.6.10 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking aho-corasick v0.7.4 [INFO] [stderr] Checking rand_jitter v0.1.4 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking utf8-ranges v1.0.3 [INFO] [stderr] Checking quick-error v1.2.2 [INFO] [stderr] Compiling nix v0.14.1 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking humantime v1.2.0 [INFO] [stderr] Checking atty v0.2.13 [INFO] [stderr] Checking itoa v0.4.4 [INFO] [stderr] Checking termcolor v1.0.5 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking uuid v0.7.4 [INFO] [stderr] Checking regex v1.2.0 [INFO] [stderr] Compiling serde_derive v1.0.98 [INFO] [stderr] Checking env_logger v0.6.2 [INFO] [stderr] Checking serde_json v1.0.40 [INFO] [stderr] Checking ybase v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `serde_json` is imported redundantly [INFO] [stdout] --> src/storage/fixmap/engine.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | use serde_json; [INFO] [stdout] | ^^^^^^^^^^ the item `serde_json` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::HashMap` [INFO] [stdout] --> src/storage/fixmap/engine.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | use std::collections::HashMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::thread::current` [INFO] [stdout] --> src/storage/fixmap/engine.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | use std::thread::current; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `serde_json` is imported redundantly [INFO] [stdout] --> src/storage/fixmap/engine.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | use serde_json; [INFO] [stdout] | ^^^^^^^^^^ the item `serde_json` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::HashMap` [INFO] [stdout] --> src/storage/fixmap/engine.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | use std::collections::HashMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::thread::current` [INFO] [stdout] --> src/storage/fixmap/engine.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | use std::thread::current; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `os_string` [INFO] [stdout] --> src/error.rs:39:13 [INFO] [stdout] | [INFO] [stdout] 39 | fn from(os_string: std::ffi::OsString) -> Self { [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_os_string` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/nexus/value.rs:8:19 [INFO] [stdout] | [INFO] [stdout] 8 | pub struct Record(u64, Vec); [INFO] [stdout] | ------ ^^^ ^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this struct [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 8 | pub struct Record((), ()); [INFO] [stdout] | ~~ ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `meta_path` and `context` are never read [INFO] [stdout] --> src/storage/fixmap/engine.rs:47:5 [INFO] [stdout] | [INFO] [stdout] 46 | pub struct FixMapStorageEngine { [INFO] [stdout] | ------------------- fields in this struct [INFO] [stdout] 47 | meta_path: PathBuf, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 48 | meta: Meta, [INFO] [stdout] 49 | context: RuntimeContext, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `alloc_page` and `sync_meta` are never used [INFO] [stdout] --> src/storage/fixmap/engine.rs:57:8 [INFO] [stdout] | [INFO] [stdout] 52 | impl FixMapStorageEngine { [INFO] [stdout] | ------------------------ methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 57 | fn alloc_page(&mut self) -> Result<()> { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 93 | fn sync_meta(&self) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/storage/fixmap/engine.rs:63:9 [INFO] [stdout] | [INFO] [stdout] 63 | self.mmap_file(&page_path); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 63 | let _ = self.mmap_file(&page_path); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/storage/fixmap/engine.rs:94:9 [INFO] [stdout] | [INFO] [stdout] 94 | serde_json::to_string(&self.meta); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 94 | let _ = serde_json::to_string(&self.meta); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/storage/fixmap/engine.rs:108:13 [INFO] [stdout] | [INFO] [stdout] 108 | self.mmap_file(&page_path); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 108 | let _ = self.mmap_file(&page_path); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `os_string` [INFO] [stdout] --> src/error.rs:39:13 [INFO] [stdout] | [INFO] [stdout] 39 | fn from(os_string: std::ffi::OsString) -> Self { [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_os_string` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/nexus/value.rs:8:19 [INFO] [stdout] | [INFO] [stdout] 8 | pub struct Record(u64, Vec); [INFO] [stdout] | ------ ^^^ ^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this struct [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 8 | pub struct Record((), ()); [INFO] [stdout] | ~~ ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `meta_path` and `context` are never read [INFO] [stdout] --> src/storage/fixmap/engine.rs:47:5 [INFO] [stdout] | [INFO] [stdout] 46 | pub struct FixMapStorageEngine { [INFO] [stdout] | ------------------- fields in this struct [INFO] [stdout] 47 | meta_path: PathBuf, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 48 | meta: Meta, [INFO] [stdout] 49 | context: RuntimeContext, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `alloc_page` and `sync_meta` are never used [INFO] [stdout] --> src/storage/fixmap/engine.rs:57:8 [INFO] [stdout] | [INFO] [stdout] 52 | impl FixMapStorageEngine { [INFO] [stdout] | ------------------------ methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 57 | fn alloc_page(&mut self) -> Result<()> { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 93 | fn sync_meta(&self) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/storage/fixmap/engine.rs:63:9 [INFO] [stdout] | [INFO] [stdout] 63 | self.mmap_file(&page_path); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 63 | let _ = self.mmap_file(&page_path); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/storage/fixmap/engine.rs:94:9 [INFO] [stdout] | [INFO] [stdout] 94 | serde_json::to_string(&self.meta); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 94 | let _ = serde_json::to_string(&self.meta); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/storage/fixmap/engine.rs:108:13 [INFO] [stdout] | [INFO] [stdout] 108 | self.mmap_file(&page_path); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 108 | let _ = self.mmap_file(&page_path); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.38s [INFO] running `Command { std: "docker" "inspect" "8d2e5a4cd27a01b798c92e84369f7dae9346cc7eeff01899e2ae664364314dea", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8d2e5a4cd27a01b798c92e84369f7dae9346cc7eeff01899e2ae664364314dea", kill_on_drop: false }` [INFO] [stdout] 8d2e5a4cd27a01b798c92e84369f7dae9346cc7eeff01899e2ae664364314dea