[INFO] cloning repository https://github.com/teltam/ferrum-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/teltam/ferrum-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fteltam%2Fferrum-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fteltam%2Fferrum-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d29489f82ee8fce4e2549c9bb1a1560c90bb0470
[INFO] testing teltam/ferrum-rs against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fteltam%2Fferrum-rs" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/teltam/ferrum-rs
[INFO] finished tweaking git repo https://github.com/teltam/ferrum-rs
[INFO] tweaked toml for git repo https://github.com/teltam/ferrum-rs written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/teltam/ferrum-rs on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/teltam/ferrum-rs 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8d20d157f69ab61106271d21544e022b04d54d849b9e95fe2ad3469733aeeb47
[INFO] running `Command { std: "docker" "start" "-a" "8d20d157f69ab61106271d21544e022b04d54d849b9e95fe2ad3469733aeeb47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d20d157f69ab61106271d21544e022b04d54d849b9e95fe2ad3469733aeeb47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d20d157f69ab61106271d21544e022b04d54d849b9e95fe2ad3469733aeeb47", kill_on_drop: false }`
[INFO] [stdout] 8d20d157f69ab61106271d21544e022b04d54d849b9e95fe2ad3469733aeeb47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a8e2800d80588a4d0921d254028b769ebb6e9e86d5ceb083d3c0b8289e32447
[INFO] running `Command { std: "docker" "start" "-a" "1a8e2800d80588a4d0921d254028b769ebb6e9e86d5ceb083d3c0b8289e32447", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling serde v1.0.213
[INFO] [stderr]    Compiling serde_json v1.0.132
[INFO] [stderr]    Compiling cpufeatures v0.2.14
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling syn v2.0.85
[INFO] [stderr]    Compiling sha2 v0.10.8
[INFO] [stderr]    Compiling serde_derive v1.0.213
[INFO] [stderr]    Compiling ferrum-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated items `new` and `hash` are never used
[INFO] [stdout]   --> src/flush.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl DataBlock {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] 28 |     pub fn new(block_size: usize) -> DataBlock {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn hash(&self) -> String {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `flush` is never used
[INFO] [stdout]   --> src/flush.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub fn flush(mem_table: &MemTable) -> std::io::Result<MemTable> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `hash` is never used
[INFO] [stdout]   --> src/mem_table.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl MemTableEntry {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] 23 |     fn hash(&self) -> String {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get`, and `put` are never used
[INFO] [stdout]   --> src/mem_table.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 48 | impl MemTable {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] 49 |     pub fn new() -> MemTable {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn get(&self, key: String) -> Option<u32> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     pub fn put(&mut self, key: String, value: u32) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.19s
[INFO] running `Command { std: "docker" "inspect" "1a8e2800d80588a4d0921d254028b769ebb6e9e86d5ceb083d3c0b8289e32447", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a8e2800d80588a4d0921d254028b769ebb6e9e86d5ceb083d3c0b8289e32447", kill_on_drop: false }`
[INFO] [stdout] 1a8e2800d80588a4d0921d254028b769ebb6e9e86d5ceb083d3c0b8289e32447
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 37ce70f542ef07d7252f0f3eaec65763bd09cfbbc702157b318d0c39b9e6a7a9
[INFO] running `Command { std: "docker" "start" "-a" "37ce70f542ef07d7252f0f3eaec65763bd09cfbbc702157b318d0c39b9e6a7a9", kill_on_drop: false }`
[INFO] [stderr]    Compiling ferrum-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated items `new` and `hash` are never used
[INFO] [stdout]   --> src/flush.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl DataBlock {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] 28 |     pub fn new(block_size: usize) -> DataBlock {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn hash(&self) -> String {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `flush` is never used
[INFO] [stdout]   --> src/flush.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub fn flush(mem_table: &MemTable) -> std::io::Result<MemTable> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `hash` is never used
[INFO] [stdout]   --> src/mem_table.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl MemTableEntry {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] 23 |     fn hash(&self) -> String {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get`, and `put` are never used
[INFO] [stdout]   --> src/mem_table.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 48 | impl MemTable {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] 49 |     pub fn new() -> MemTable {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn get(&self, key: String) -> Option<u32> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     pub fn put(&mut self, key: String, value: u32) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.45s
[INFO] running `Command { std: "docker" "inspect" "37ce70f542ef07d7252f0f3eaec65763bd09cfbbc702157b318d0c39b9e6a7a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37ce70f542ef07d7252f0f3eaec65763bd09cfbbc702157b318d0c39b9e6a7a9", kill_on_drop: false }`
[INFO] [stdout] 37ce70f542ef07d7252f0f3eaec65763bd09cfbbc702157b318d0c39b9e6a7a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b74c70f5284911a89742c38a3b7148d47c60f6517e4992559c0040ee853afb06
[INFO] running `Command { std: "docker" "start" "-a" "b74c70f5284911a89742c38a3b7148d47c60f6517e4992559c0040ee853afb06", kill_on_drop: false }`
[INFO] [stderr] warning: associated items `new` and `hash` are never used
[INFO] [stderr]   --> src/flush.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 27 | impl DataBlock {
[INFO] [stderr]    | -------------- associated items in this implementation
[INFO] [stderr] 28 |     pub fn new(block_size: usize) -> DataBlock {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 35 |     pub fn hash(&self) -> String {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `flush` is never used
[INFO] [stderr]   --> src/flush.rs:54:8
[INFO] [stderr]    |
[INFO] [stderr] 54 | pub fn flush(mem_table: &MemTable) -> std::io::Result<MemTable> {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `hash` is never used
[INFO] [stderr]   --> src/mem_table.rs:23:8
[INFO] [stderr]    |
[INFO] [stderr] 22 | impl MemTableEntry {
[INFO] [stderr]    | ------------------ method in this implementation
[INFO] [stderr] 23 |     fn hash(&self) -> String {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `get`, and `put` are never used
[INFO] [stderr]   --> src/mem_table.rs:49:12
[INFO] [stderr]    |
[INFO] [stderr] 48 | impl MemTable {
[INFO] [stderr]    | ------------- associated items in this implementation
[INFO] [stderr] 49 |     pub fn new() -> MemTable {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 56 |     pub fn get(&self, key: String) -> Option<u32> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 66 |     pub fn put(&mut self, key: String, value: u32) {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `ferrum-rs` (lib) generated 4 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ferrum_rs-b8d00e395ab3f680)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test mem_table::tests::test_mem_table_read_and_write ... ok
[INFO] [stdout] test flush::tests::test_flush ... ok
[INFO] [stdout] test flush::tests::test_sst_write ... ok
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ferrum_rs
[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] running `Command { std: "docker" "inspect" "b74c70f5284911a89742c38a3b7148d47c60f6517e4992559c0040ee853afb06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b74c70f5284911a89742c38a3b7148d47c60f6517e4992559c0040ee853afb06", kill_on_drop: false }`
[INFO] [stdout] b74c70f5284911a89742c38a3b7148d47c60f6517e4992559c0040ee853afb06
