[INFO] cloning repository https://github.com/andy-thomason/kvstore [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/andy-thomason/kvstore" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandy-thomason%2Fkvstore", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandy-thomason%2Fkvstore'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] bf1abf64fb1078b63d51b3f02098949ee6adef35 [INFO] checking andy-thomason/kvstore 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%2Fandy-thomason%2Fkvstore" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/andy-thomason/kvstore [INFO] finished tweaking git repo https://github.com/andy-thomason/kvstore [INFO] tweaked toml for git repo https://github.com/andy-thomason/kvstore written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/andy-thomason/kvstore 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/andy-thomason/kvstore 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 37fb4f2e811ec6201bcabee7d3cf3dd401c1d75da83101c341bfa98a4d1cf6f9 [INFO] running `Command { std: "docker" "start" "-a" "37fb4f2e811ec6201bcabee7d3cf3dd401c1d75da83101c341bfa98a4d1cf6f9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "37fb4f2e811ec6201bcabee7d3cf3dd401c1d75da83101c341bfa98a4d1cf6f9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "37fb4f2e811ec6201bcabee7d3cf3dd401c1d75da83101c341bfa98a4d1cf6f9", kill_on_drop: false }` [INFO] [stdout] 37fb4f2e811ec6201bcabee7d3cf3dd401c1d75da83101c341bfa98a4d1cf6f9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] fb09705aebe33af976c8ac1afb5b8c8d2302df6b4ebbfd9f1213cd7ffe32cda9 [INFO] running `Command { std: "docker" "start" "-a" "fb09705aebe33af976c8ac1afb5b8c8d2302df6b4ebbfd9f1213cd7ffe32cda9", kill_on_drop: false }` [INFO] [stderr] Checking kvstore v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `key` [INFO] [stdout] --> src/file_spec.rs:161:23 [INFO] [stdout] | [INFO] [stdout] 161 | pub fn get(&self, key: &[u8], res: &mut [u8]) -> Result, Error> { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_key` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `res` [INFO] [stdout] --> src/file_spec.rs:161:35 [INFO] [stdout] | [INFO] [stdout] 161 | pub fn get(&self, key: &[u8], res: &mut [u8]) -> Result, Error> { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_res` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `res` [INFO] [stdout] --> src/file_spec.rs:188:35 [INFO] [stdout] | [INFO] [stdout] 188 | pub fn get(&self, key: &[u8], res: &mut [u8]) -> Result, Error> { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_res` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value_offsets` [INFO] [stdout] --> src/file_spec.rs:198:13 [INFO] [stdout] | [INFO] [stdout] 198 | let value_offsets = &self.buf[keys_end..values_end]; [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_value_offsets` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `lower` [INFO] [stdout] --> src/file_spec.rs:200:13 [INFO] [stdout] | [INFO] [stdout] 200 | let lower = partition(key, bytes, key_offsets, Ordering::Less); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_lower` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `upper` [INFO] [stdout] --> src/file_spec.rs:201:13 [INFO] [stdout] | [INFO] [stdout] 201 | let upper = partition(key, bytes, key_offsets, Ordering::Greater); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_upper` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `key` [INFO] [stdout] --> src/lib.rs:108:23 [INFO] [stdout] | [INFO] [stdout] 108 | fn set(&mut self, key: &[u8], buf: &[u8]) -> Result<(), Error> { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_key` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `buf` [INFO] [stdout] --> src/lib.rs:108:35 [INFO] [stdout] | [INFO] [stdout] 108 | fn set(&mut self, key: &[u8], buf: &[u8]) -> Result<(), Error> { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_buf` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `key` [INFO] [stdout] --> src/file_spec.rs:161:23 [INFO] [stdout] | [INFO] [stdout] 161 | pub fn get(&self, key: &[u8], res: &mut [u8]) -> Result, Error> { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_key` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `kvstore` (lib) due to 1 previous error; 8 warnings emitted [INFO] [stdout] warning: unused variable: `res` [INFO] [stdout] --> src/file_spec.rs:161:35 [INFO] [stdout] | [INFO] [stdout] 161 | pub fn get(&self, key: &[u8], res: &mut [u8]) -> Result, Error> { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_res` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unused variable: `res` [INFO] [stdout] --> src/file_spec.rs:188:35 [INFO] [stdout] | [INFO] [stdout] 188 | pub fn get(&self, key: &[u8], res: &mut [u8]) -> Result, Error> { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_res` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `kvstore` (lib test) due to 1 previous error; 8 warnings emitted [INFO] [stdout] warning: unused variable: `value_offsets` [INFO] [stdout] --> src/file_spec.rs:198:13 [INFO] [stdout] | [INFO] [stdout] 198 | let value_offsets = &self.buf[keys_end..values_end]; [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_value_offsets` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `lower` [INFO] [stdout] --> src/file_spec.rs:200:13 [INFO] [stdout] | [INFO] [stdout] 200 | let lower = partition(key, bytes, key_offsets, Ordering::Less); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_lower` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `upper` [INFO] [stdout] --> src/file_spec.rs:201:13 [INFO] [stdout] | [INFO] [stdout] 201 | let upper = partition(key, bytes, key_offsets, Ordering::Greater); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_upper` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `key` [INFO] [stdout] --> src/lib.rs:108:23 [INFO] [stdout] | [INFO] [stdout] 108 | fn set(&mut self, key: &[u8], buf: &[u8]) -> Result<(), Error> { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_key` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `buf` [INFO] [stdout] --> src/lib.rs:108:35 [INFO] [stdout] | [INFO] [stdout] 108 | fn set(&mut self, key: &[u8], buf: &[u8]) -> Result<(), Error> { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_buf` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/memory_storage.rs:18:24 [INFO] [stdout] | [INFO] [stdout] 18 | vec.resize(newlen.try_into().bad()?, 0); [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 [INFO] [stdout] --> src/memory_storage.rs:18:24 [INFO] [stdout] | [INFO] [stdout] 18 | vec.resize(newlen.try_into().bad()?, 0); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "fb09705aebe33af976c8ac1afb5b8c8d2302df6b4ebbfd9f1213cd7ffe32cda9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fb09705aebe33af976c8ac1afb5b8c8d2302df6b4ebbfd9f1213cd7ffe32cda9", kill_on_drop: false }` [INFO] [stdout] fb09705aebe33af976c8ac1afb5b8c8d2302df6b4ebbfd9f1213cd7ffe32cda9