[INFO] cloning repository https://github.com/mpenick/buffer-pool-manager [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mpenick/buffer-pool-manager" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmpenick%2Fbuffer-pool-manager", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmpenick%2Fbuffer-pool-manager'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 052aaca9a5c4ef2ba255fd9c3b8ffca06bc48c83 [INFO] checking mpenick/buffer-pool-manager against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmpenick%2Fbuffer-pool-manager" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/mpenick/buffer-pool-manager [INFO] finished tweaking git repo https://github.com/mpenick/buffer-pool-manager [INFO] tweaked toml for git repo https://github.com/mpenick/buffer-pool-manager written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/mpenick/buffer-pool-manager on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/mpenick/buffer-pool-manager 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 932be3274808df652868a8b5d7c50f6f215d72049702d4d556f0a9cffd4bba95 [INFO] running `Command { std: "docker" "start" "-a" "932be3274808df652868a8b5d7c50f6f215d72049702d4d556f0a9cffd4bba95", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "932be3274808df652868a8b5d7c50f6f215d72049702d4d556f0a9cffd4bba95", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "932be3274808df652868a8b5d7c50f6f215d72049702d4d556f0a9cffd4bba95", kill_on_drop: false }` [INFO] [stdout] 932be3274808df652868a8b5d7c50f6f215d72049702d4d556f0a9cffd4bba95 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6ffa6a566ab0205c8afcfab78b3621e0f20d586c13a6fef7f09c01a1fa0da726 [INFO] running `Command { std: "docker" "start" "-a" "6ffa6a566ab0205c8afcfab78b3621e0f20d586c13a6fef7f09c01a1fa0da726", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.60 [INFO] [stderr] Compiling tokio v1.2.0 [INFO] [stderr] Checking mio v0.7.8 [INFO] [stderr] Checking tracing v0.1.24 [INFO] [stderr] Checking http-body v0.4.0 [INFO] [stderr] Checking want v0.3.0 [INFO] [stderr] Checking httpdate v0.3.2 [INFO] [stderr] Compiling futures-macro v0.3.12 [INFO] [stderr] Compiling pin-project-internal v1.0.5 [INFO] [stderr] Compiling tokio-macros v1.1.0 [INFO] [stderr] Compiling serde_derive v1.0.123 [INFO] [stderr] Checking futures-util v0.3.12 [INFO] [stderr] Checking pin-project v1.0.5 [INFO] [stderr] Checking tracing-futures v0.2.5 [INFO] [stderr] Checking futures-executor v0.3.12 [INFO] [stderr] Checking serde v1.0.123 [INFO] [stderr] Checking futures v0.3.12 [INFO] [stderr] Checking tokio-util v0.6.3 [INFO] [stderr] Checking h2 v0.3.0 [INFO] [stderr] Checking url v2.2.1 [INFO] [stderr] Checking serde_json v1.0.62 [INFO] [stderr] Checking hyper v0.14.4 [INFO] [stderr] Checking buffer_pool v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `data` is never read [INFO] [stdout] --> src/buffer_pool.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 20 | pub struct Page { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] ... [INFO] [stdout] 24 | pub data: [u8; PAGE_SIZE], [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Page` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `as_any` is never used [INFO] [stdout] --> src/buffer_pool.rs:39:8 [INFO] [stdout] | [INFO] [stdout] 33 | pub trait DiskManager { [INFO] [stdout] | ----------- method in this trait [INFO] [stdout] ... [INFO] [stdout] 39 | fn as_any(&self) -> &dyn Any; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/server.rs:147:41 [INFO] [stdout] | [INFO] [stdout] 147 | ) -> Result, Infallible> { [INFO] [stdout] | _________________________________________^ [INFO] [stdout] 148 | | let mut response = Response::new(Body::empty()); [INFO] [stdout] 149 | | [INFO] [stdout] 150 | | match (req.method(), req.uri().path()) { [INFO] [stdout] ... | [INFO] [stdout] 162 | | Ok(response) [INFO] [stdout] 163 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/server.rs:147:41 [INFO] [stdout] | [INFO] [stdout] 147 | ) -> Result, Infallible> { [INFO] [stdout] | _________________________________________^ [INFO] [stdout] 148 | | let mut response = Response::new(Body::empty()); [INFO] [stdout] 149 | | [INFO] [stdout] 150 | | match (req.method(), req.uri().path()) { [INFO] [stdout] ... | [INFO] [stdout] 162 | | Ok(response) [INFO] [stdout] 163 | | } [INFO] [stdout] | |_^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/server.rs:162:5 [INFO] [stdout] | [INFO] [stdout] 162 | Ok(response) [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/server.rs:172:15 [INFO] [stdout] | [INFO] [stdout] 172 | async { Ok::<_, Infallible>(service_fn(move |req| route(req, local.clone()))) } [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/server.rs:172:17 [INFO] [stdout] | [INFO] [stdout] 172 | async { Ok::<_, Infallible>(service_fn(move |req| route(req, local.clone()))) } [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `buffer_pool` (bin "buffer_pool") due to 5 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: field `data` is never read [INFO] [stdout] --> src/buffer_pool.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 20 | pub struct Page { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] ... [INFO] [stdout] 24 | pub data: [u8; PAGE_SIZE], [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Page` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/server.rs:147:41 [INFO] [stdout] | [INFO] [stdout] 147 | ) -> Result, Infallible> { [INFO] [stdout] | _________________________________________^ [INFO] [stdout] 148 | | let mut response = Response::new(Body::empty()); [INFO] [stdout] 149 | | [INFO] [stdout] 150 | | match (req.method(), req.uri().path()) { [INFO] [stdout] ... | [INFO] [stdout] 162 | | Ok(response) [INFO] [stdout] 163 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/server.rs:147:41 [INFO] [stdout] | [INFO] [stdout] 147 | ) -> Result, Infallible> { [INFO] [stdout] | _________________________________________^ [INFO] [stdout] 148 | | let mut response = Response::new(Body::empty()); [INFO] [stdout] 149 | | [INFO] [stdout] 150 | | match (req.method(), req.uri().path()) { [INFO] [stdout] ... | [INFO] [stdout] 162 | | Ok(response) [INFO] [stdout] 163 | | } [INFO] [stdout] | |_^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/server.rs:162:5 [INFO] [stdout] | [INFO] [stdout] 162 | Ok(response) [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/server.rs:172:15 [INFO] [stdout] | [INFO] [stdout] 172 | async { Ok::<_, Infallible>(service_fn(move |req| route(req, local.clone()))) } [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/server.rs:172:17 [INFO] [stdout] | [INFO] [stdout] 172 | async { Ok::<_, Infallible>(service_fn(move |req| route(req, local.clone()))) } [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `buffer_pool` (bin "buffer_pool" test) due to 5 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "6ffa6a566ab0205c8afcfab78b3621e0f20d586c13a6fef7f09c01a1fa0da726", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6ffa6a566ab0205c8afcfab78b3621e0f20d586c13a6fef7f09c01a1fa0da726", kill_on_drop: false }` [INFO] [stdout] 6ffa6a566ab0205c8afcfab78b3621e0f20d586c13a6fef7f09c01a1fa0da726