[INFO] cloning repository https://github.com/uttpal/WalrusDB
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/uttpal/WalrusDB" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Futtpal%2FWalrusDB", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Futtpal%2FWalrusDB'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f2360882fe2c0a5075d6196794b4725075b8eda5
[INFO] fixing uttpal/WalrusDB against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Futtpal%2FWalrusDB" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/uttpal/WalrusDB
[INFO] finished tweaking git repo https://github.com/uttpal/WalrusDB
[INFO] tweaked toml for git repo https://github.com/uttpal/WalrusDB written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/uttpal/WalrusDB on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/uttpal/WalrusDB 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" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 3c39841b1ec2cc8e8d445875c6f334c4755a2ed80776c56e70881f75dea5bd34
[INFO] running `Command { std: "docker" "start" "3c39841b1ec2cc8e8d445875c6f334c4755a2ed80776c56e70881f75dea5bd34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "3c39841b1ec2cc8e8d445875c6f334c4755a2ed80776c56e70881f75dea5bd34" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c39841b1ec2cc8e8d445875c6f334c4755a2ed80776c56e70881f75dea5bd34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "3c39841b1ec2cc8e8d445875c6f334c4755a2ed80776c56e70881f75dea5bd34" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=start=2015", kill_on_drop: false }`
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[INFO] [stdout] error[E0583]: file not found for module `wal_store`
[INFO] [stdout]  --> src/main.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | mod wal_store;
[INFO] [stdout]   | ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: to create the module `wal_store`, create file "src/wal_store.rs" or "src/wal_store/mod.rs"
[INFO] [stdout]   = note: if there is a `mod wal_store` elsewhere in the crate already, import it with `use crate::...` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0583]: file not found for module `wal_store`
[INFO] [stdout]  --> src/main.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | mod wal_store;
[INFO] [stdout]   | ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: to create the module `wal_store`, create file "src/wal_store.rs" or "src/wal_store/mod.rs"
[INFO] [stdout]   = note: if there is a `mod wal_store` elsewhere in the crate already, import it with `use crate::...` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader`, `BufWriter`, `SeekFrom`, and `Seek`
[INFO] [stdout]  --> src/wal.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, BufWriter, BufReader, Seek, SeekFrom, Write, Read, Cursor};
[INFO] [stdout]   |                     ^^^^^^^^^  ^^^^^^^^^  ^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> src/transaction_manager.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader`, `BufWriter`, `SeekFrom`, and `Seek`
[INFO] [stdout]  --> src/wal.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, BufWriter, BufReader, Seek, SeekFrom, Write, Read, Cursor};
[INFO] [stdout]   |                     ^^^^^^^^^  ^^^^^^^^^  ^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/transaction_manager.rs:52:50
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn delete(&mut self, key: Key) -> Result<(Option<Value>), io::Error> {
[INFO] [stdout]    |                                                  ^             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 52 -     pub fn delete(&mut self, key: Key) -> Result<(Option<Value>), io::Error> {
[INFO] [stdout] 52 +     pub fn delete(&mut self, key: Key) -> Result<Option<Value> , io::Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> src/transaction_manager.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/transaction_manager.rs:52:50
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn delete(&mut self, key: Key) -> Result<(Option<Value>), io::Error> {
[INFO] [stdout]    |                                                  ^             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 52 -     pub fn delete(&mut self, key: Key) -> Result<(Option<Value>), io::Error> {
[INFO] [stdout] 52 +     pub fn delete(&mut self, key: Key) -> Result<Option<Value> , io::Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/wal.rs:2:59
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, BufWriter, BufReader, Seek, SeekFrom, Write, Read, Cursor};
[INFO] [stdout]   |                                                           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/wal.rs:2:59
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, BufWriter, BufReader, Seek, SeekFrom, Write, Read, Cursor};
[INFO] [stdout]   |                                                           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `serialized_batch`
[INFO] [stdout]    --> src/wal.rs:159:17
[INFO] [stdout]     |
[INFO] [stdout] 159 |             let serialized_batch = wal_batch.iter().map(|entry| serialize(entry)).collect::<Vec<Vec<u8>>>();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_serialized_batch`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `serialized_batch`
[INFO] [stdout]    --> src/wal.rs:159:17
[INFO] [stdout]     |
[INFO] [stdout] 159 |             let serialized_batch = wal_batch.iter().map(|entry| serialize(entry)).collect::<Vec<Vec<u8>>>();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_serialized_batch`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0583`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0583`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustdb` (bin "rustdb" test) due to 1 previous error; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `rustdb` (bin "rustdb") due to 1 previous error; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "3c39841b1ec2cc8e8d445875c6f334c4755a2ed80776c56e70881f75dea5bd34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c39841b1ec2cc8e8d445875c6f334c4755a2ed80776c56e70881f75dea5bd34", kill_on_drop: false }`
[INFO] [stdout] 3c39841b1ec2cc8e8d445875c6f334c4755a2ed80776c56e70881f75dea5bd34
