[INFO] fetching crate refinery 0.6.0...
[INFO] testing refinery-0.6.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate refinery 0.6.0 into /workspace/builds/worker-112/source
[INFO] validating manifest of crates.io crate refinery 0.6.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate refinery 0.6.0
[INFO] finished tweaking crates.io crate refinery 0.6.0
[INFO] tweaked toml for crates.io crate refinery 0.6.0 written to /workspace/builds/worker-112/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
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[INFO] [stderr]   Downloaded predicates-tree v1.0.3
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling autocfg v1.0.1
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[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling memchr v2.4.0
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[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling siphasher v0.3.6
[INFO] [stderr]    Compiling tinyvec v1.3.1
[INFO] [stderr]    Compiling unicode-bidi v0.3.5
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.9
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[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling chrono v0.4.19
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[INFO] [stderr]    Compiling refinery v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.74s
[INFO] running `Command { std: "docker" "inspect" "1c10fa6f7e627975f50c5f5e95437298703891648f73aa5d7f23ce63ad00eb4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c10fa6f7e627975f50c5f5e95437298703891648f73aa5d7f23ce63ad00eb4e", kill_on_drop: false }`
[INFO] [stdout] 1c10fa6f7e627975f50c5f5e95437298703891648f73aa5d7f23ce63ad00eb4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df41c9c9f88c7521090f64c124851cab3ac77b9df9c05845ee2e6579faa08517
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[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling futures-util v0.3.16
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[INFO] [stderr]    Compiling bstr v0.2.16
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[INFO] [stderr]    Compiling tempfile v3.2.0
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[INFO] [stdout] warning: function is never used: `migration`
[INFO] [stdout]  --> tests/mod_migrations/V4__add_year_to_motos_table.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn migration() -> String {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `migration`
[INFO] [stdout]  --> tests/mod_migrations/V1__initial.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn migration() -> String {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `migration`
[INFO] [stdout]  --> tests/mod_migrations/V3__add_brand_to_cars_table.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn migration() -> String {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `migration`
[INFO] [stdout]  --> tests/mod_migrations/V2__add_cars_table.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn migration() -> String {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `migration`
[INFO] [stdout]  --> tests/mod_migrations/V4__add_year_to_motos_table.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn migration() -> String {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `migration`
[INFO] [stdout]  --> tests/mod_migrations/V1__initial.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn migration() -> String {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `migration`
[INFO] [stdout]  --> tests/mod_migrations/V3__add_brand_to_cars_table.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn migration() -> String {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `migration`
[INFO] [stdout]  --> tests/mod_migrations/V2__add_cars_table.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn migration() -> String {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `migration`
[INFO] [stdout]  --> tests/mod_migrations/V4__add_year_to_motos_table.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn migration() -> String {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `migration`
[INFO] [stdout]  --> tests/mod_migrations/V1__initial.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn migration() -> String {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `migration`
[INFO] [stdout]  --> tests/mod_migrations/V3__add_brand_to_cars_table.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn migration() -> String {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `migration`
[INFO] [stdout]  --> tests/mod_migrations/V2__add_cars_table.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn migration() -> String {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `migration`
[INFO] [stdout]  --> tests/mod_migrations/V4__add_year_to_motos_table.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn migration() -> String {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `migration`
[INFO] [stdout]  --> tests/mod_migrations/V1__initial.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn migration() -> String {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `migration`
[INFO] [stdout]  --> tests/mod_migrations/V3__add_brand_to_cars_table.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn migration() -> String {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `migration`
[INFO] [stdout]  --> tests/mod_migrations/V2__add_cars_table.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn migration() -> String {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `migration`
[INFO] [stdout]  --> tests/mod_migrations/V4__add_year_to_motos_table.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn migration() -> String {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `migration`
[INFO] [stdout]  --> tests/mod_migrations/V1__initial.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn migration() -> String {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `migration`
[INFO] [stdout]  --> tests/mod_migrations/V3__add_brand_to_cars_table.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn migration() -> String {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `migration`
[INFO] [stdout]  --> tests/mod_migrations/V2__add_cars_table.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn migration() -> String {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 15.28s
[INFO] running `Command { std: "docker" "inspect" "df41c9c9f88c7521090f64c124851cab3ac77b9df9c05845ee2e6579faa08517", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df41c9c9f88c7521090f64c124851cab3ac77b9df9c05845ee2e6579faa08517", kill_on_drop: false }`
[INFO] [stdout] df41c9c9f88c7521090f64c124851cab3ac77b9df9c05845ee2e6579faa08517
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f7fc85bc0b870130a948f35322ea8e7d199cfb50fb29a3fa5c66f7ccc3423068
[INFO] running `Command { std: "docker" "start" "-a" "f7fc85bc0b870130a948f35322ea8e7d199cfb50fb29a3fa5c66f7ccc3423068", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: function is never used: `migration`
[INFO] [stderr]  --> tests/mod_migrations/V4__add_year_to_motos_table.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn migration() -> String {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `migration`
[INFO] [stderr]  --> tests/mod_migrations/V1__initial.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn migration() -> String {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `migration`
[INFO] [stderr]  --> tests/mod_migrations/V3__add_brand_to_cars_table.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn migration() -> String {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `migration`
[INFO] [stderr]  --> tests/mod_migrations/V2__add_cars_table.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn migration() -> String {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `migration`
[INFO] [stderr]  --> tests/mod_migrations/V4__add_year_to_motos_table.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn migration() -> String {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `migration`
[INFO] [stderr]  --> tests/mod_migrations/V1__initial.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn migration() -> String {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `migration`
[INFO] [stderr]  --> tests/mod_migrations/V3__add_brand_to_cars_table.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn migration() -> String {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `migration`
[INFO] [stderr]  --> tests/mod_migrations/V2__add_cars_table.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn migration() -> String {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `migration`
[INFO] [stderr]  --> tests/mod_migrations/V4__add_year_to_motos_table.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn migration() -> String {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `migration`
[INFO] [stderr]  --> tests/mod_migrations/V1__initial.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn migration() -> String {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `migration`
[INFO] [stderr]  --> tests/mod_migrations/V3__add_brand_to_cars_table.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn migration() -> String {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `migration`
[INFO] [stderr]  --> tests/mod_migrations/V2__add_cars_table.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn migration() -> String {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `migration`
[INFO] [stderr]  --> tests/mod_migrations/V4__add_year_to_motos_table.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn migration() -> String {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `migration`
[INFO] [stderr]  --> tests/mod_migrations/V1__initial.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn migration() -> String {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `migration`
[INFO] [stderr]  --> tests/mod_migrations/V3__add_brand_to_cars_table.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn migration() -> String {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `migration`
[INFO] [stderr]  --> tests/mod_migrations/V2__add_cars_table.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn migration() -> String {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `migration`
[INFO] [stderr]  --> tests/mod_migrations/V4__add_year_to_motos_table.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn migration() -> String {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `migration`
[INFO] [stderr]  --> tests/mod_migrations/V1__initial.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn migration() -> String {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `migration`
[INFO] [stderr]  --> tests/mod_migrations/V3__add_brand_to_cars_table.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn migration() -> String {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `migration`
[INFO] [stderr]  --> tests/mod_migrations/V2__add_cars_table.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn migration() -> String {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.42s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/refinery-27b15f4c894933d1)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/mysql.rs (/opt/rustwide/target/debug/deps/mysql-a4325361ca4babed)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/mysql_async.rs (/opt/rustwide/target/debug/deps/mysql_async-6fb9632a10e11cb8)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/postgres.rs (/opt/rustwide/target/debug/deps/postgres-80c16392e1a52abd)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/rusqlite.rs (/opt/rustwide/target/debug/deps/rusqlite-d79ce7836fe74a80)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/tokio_postgres.rs (/opt/rustwide/target/debug/deps/tokio_postgres-55ad09baa3270351)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests refinery
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 19) ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f7fc85bc0b870130a948f35322ea8e7d199cfb50fb29a3fa5c66f7ccc3423068", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7fc85bc0b870130a948f35322ea8e7d199cfb50fb29a3fa5c66f7ccc3423068", kill_on_drop: false }`
[INFO] [stdout] f7fc85bc0b870130a948f35322ea8e7d199cfb50fb29a3fa5c66f7ccc3423068
