[INFO] cloning repository https://github.com/duskoo/rust-db-performance
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/duskoo/rust-db-performance" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduskoo%2Frust-db-performance", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduskoo%2Frust-db-performance'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7cc3774086533094a1c73a4d2439fd29915efb8e
[INFO] checking duskoo/rust-db-performance against master#82310651b93a594a3fd69015e1562186a080d94c for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduskoo%2Frust-db-performance" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/duskoo/rust-db-performance
[INFO] finished tweaking git repo https://github.com/duskoo/rust-db-performance
[INFO] tweaked toml for git repo https://github.com/duskoo/rust-db-performance written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/duskoo/rust-db-performance on toolchain 82310651b93a594a3fd69015e1562186a080d94c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/duskoo/rust-db-performance 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" "+82310651b93a594a3fd69015e1562186a080d94c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded linked-hash-map v0.5.3
[INFO] [stderr]   Downloaded build_const v0.2.1
[INFO] [stderr]   Downloaded time v0.1.43
[INFO] [stderr]   Downloaded crc v1.8.1
[INFO] [stderr]   Downloaded vcpkg v0.2.10
[INFO] [stderr]   Downloaded fs2 v0.4.3
[INFO] [stderr]   Downloaded data-encoding v2.2.1
[INFO] [stderr]   Downloaded unsigned-varint v0.3.3
[INFO] [stderr]   Downloaded fallible-iterator v0.2.0
[INFO] [stderr]   Downloaded cc v1.0.56
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.8
[INFO] [stderr]   Downloaded rusqlite v0.23.1
[INFO] [stderr]   Downloaded lru-cache v0.1.2
[INFO] [stderr]   Downloaded persy v0.9.0
[INFO] [stderr]   Downloaded libc v0.2.71
[INFO] [stderr]   Downloaded libsqlite3-sys v0.18.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 672f6d222b43828d49663fe6c8c3e419c373dc34ca986c0cbc1972073a4bd0cf
[INFO] running `Command { std: "docker" "start" "-a" "672f6d222b43828d49663fe6c8c3e419c373dc34ca986c0cbc1972073a4bd0cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "672f6d222b43828d49663fe6c8c3e419c373dc34ca986c0cbc1972073a4bd0cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "672f6d222b43828d49663fe6c8c3e419c373dc34ca986c0cbc1972073a4bd0cf", kill_on_drop: false }`
[INFO] [stdout] 672f6d222b43828d49663fe6c8c3e419c373dc34ca986c0cbc1972073a4bd0cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 894efaf5dac33c6976f7a2f96a6fb11feb47fb3431658ef3406caef97d0c703d
[INFO] running `Command { std: "docker" "start" "-a" "894efaf5dac33c6976f7a2f96a6fb11feb47fb3431658ef3406caef97d0c703d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]    Compiling cc v1.0.56
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking fallible-streaming-iterator v0.1.9
[INFO] [stderr]     Checking unsigned-varint v0.3.3
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]     Checking data-encoding v2.2.1
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]    Compiling libsqlite3-sys v0.18.0
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking persy v0.9.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking rusqlite v0.23.1
[INFO] [stderr]     Checking db_testing v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Row` and `ToSql`
[INFO] [stdout]  --> src/sqlite_benchmark.rs:7:36
[INFO] [stdout]   |
[INFO] [stdout] 7 | use rusqlite::{params, Connection, Row, ToSql};
[INFO] [stdout]   |                                    ^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PersyError`
[INFO] [stdout]   --> src/main.rs:12:24
[INFO] [stdout]    |
[INFO] [stdout] 12 |     use persy::{Persy, PersyError, PersyId, Value, ValueMode};
[INFO] [stdout]    |                        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Row` and `ToSql`
[INFO] [stdout]  --> src/sqlite_benchmark.rs:7:36
[INFO] [stdout]   |
[INFO] [stdout] 7 | use rusqlite::{params, Connection, Row, ToSql};
[INFO] [stdout]   |                                    ^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Instant`
[INFO] [stdout]  --> src/sqlite_benchmark.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::time::Instant;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `test::Bencher`
[INFO] [stdout]   --> src/sqlite_benchmark.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use test::Bencher;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]   --> src/sqlite_benchmark.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let res = connection.execute(
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]    --> src/sqlite_benchmark.rs:138:13
[INFO] [stdout]     |
[INFO] [stdout] 138 |         let file = tmp_file.reopen().expect("reopen");
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]    --> src/sqlite_benchmark.rs:138:13
[INFO] [stdout]     |
[INFO] [stdout] 138 |         let file = tmp_file.reopen().expect("reopen");
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]    --> src/sqlite_benchmark.rs:141:13
[INFO] [stdout]     |
[INFO] [stdout] 141 |         let res = conn.execute(
[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/sqlite_benchmark.rs:141:13
[INFO] [stdout]     |
[INFO] [stdout] 141 |         let res = conn.execute(
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `insert` is never used
[INFO] [stdout]   --> src/sqlite_benchmark.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn insert(conn: &Connection) {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sqlite_insert_multiple` is never used
[INFO] [stdout]   --> src/sqlite_benchmark.rs:70:4
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn sqlite_insert_multiple(conn: &Connection) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sqlite_examine` is never used
[INFO] [stdout]   --> src/sqlite_benchmark.rs:76:4
[INFO] [stdout]    |
[INFO] [stdout] 76 | fn sqlite_examine(conn: &Connection) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `temp_db` is never used
[INFO] [stdout]    --> src/sqlite_benchmark.rs:127:4
[INFO] [stdout]     |
[INFO] [stdout] 127 | fn temp_db<T>(name: &str, test: T)
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-binding let on a synchronization lock
[INFO] [stdout]   --> src/helpers.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 |             let _ = self.cond.wait(guard)?;
[INFO] [stdout]    |                 ^ this lock is not assigned to a binding and is immediately dropped
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(let_underscore_lock)]` on by default
[INFO] [stdout] help: consider binding to an unused variable to avoid immediately dropping the value
[INFO] [stdout]    |
[INFO] [stdout] 25 |             let _unused = self.cond.wait(guard)?;
[INFO] [stdout]    |                  ++++++
[INFO] [stdout] help: consider immediately dropping the value
[INFO] [stdout]    |
[INFO] [stdout] 25 -             let _ = self.cond.wait(guard)?;
[INFO] [stdout] 25 +             drop(self.cond.wait(guard)?);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `db_testing` (bin "db_testing") due to 1 previous error; 9 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: non-binding let on a synchronization lock
[INFO] [stdout]   --> src/helpers.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 |             let _ = self.cond.wait(guard)?;
[INFO] [stdout]    |                 ^ this lock is not assigned to a binding and is immediately dropped
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(let_underscore_lock)]` on by default
[INFO] [stdout] help: consider binding to an unused variable to avoid immediately dropping the value
[INFO] [stdout]    |
[INFO] [stdout] 25 |             let _unused = self.cond.wait(guard)?;
[INFO] [stdout]    |                  ++++++
[INFO] [stdout] help: consider immediately dropping the value
[INFO] [stdout]    |
[INFO] [stdout] 25 -             let _ = self.cond.wait(guard)?;
[INFO] [stdout] 25 +             drop(self.cond.wait(guard)?);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `db_testing` (bin "db_testing" test) due to 1 previous error; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "894efaf5dac33c6976f7a2f96a6fb11feb47fb3431658ef3406caef97d0c703d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "894efaf5dac33c6976f7a2f96a6fb11feb47fb3431658ef3406caef97d0c703d", kill_on_drop: false }`
[INFO] [stdout] 894efaf5dac33c6976f7a2f96a6fb11feb47fb3431658ef3406caef97d0c703d
