[INFO] cloning repository https://github.com/colin-m-davis/db
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/colin-m-davis/db" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcolin-m-davis%2Fdb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcolin-m-davis%2Fdb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 03b48ab009c0689de6f03eccc4e58403ac372a18
[INFO] checking colin-m-davis/db against try#29194e8f603400afdb2f86c9418e9fccb1628ea0 for pr-135331-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcolin-m-davis%2Fdb" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/colin-m-davis/db
[INFO] finished tweaking git repo https://github.com/colin-m-davis/db
[INFO] tweaked toml for git repo https://github.com/colin-m-davis/db written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/colin-m-davis/db on toolchain 29194e8f603400afdb2f86c9418e9fccb1628ea0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+29194e8f603400afdb2f86c9418e9fccb1628ea0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/colin-m-davis/db 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" "+29194e8f603400afdb2f86c9418e9fccb1628ea0" "fetch" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+29194e8f603400afdb2f86c9418e9fccb1628ea0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 30b5df364e709990103f18e53f7cbd60a504ab4e42dd7120067224769ff0ca74
[INFO] running `Command { std: "docker" "start" "-a" "30b5df364e709990103f18e53f7cbd60a504ab4e42dd7120067224769ff0ca74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30b5df364e709990103f18e53f7cbd60a504ab4e42dd7120067224769ff0ca74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30b5df364e709990103f18e53f7cbd60a504ab4e42dd7120067224769ff0ca74", kill_on_drop: false }`
[INFO] [stdout] 30b5df364e709990103f18e53f7cbd60a504ab4e42dd7120067224769ff0ca74
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+29194e8f603400afdb2f86c9418e9fccb1628ea0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a78252526ea16fbeef5aa7104da17557710bc6606755709fe8496ea6334e7b74
[INFO] running `Command { std: "docker" "start" "-a" "a78252526ea16fbeef5aa7104da17557710bc6606755709fe8496ea6334e7b74", kill_on_drop: false }`
[INFO] [stderr]     Checking db v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]  --> src/client/tokenize.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn tokenize(line: String) -> Result<Vec<String>, String> {
[INFO] [stdout]   |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]  --> src/client/parse.rs:1:14
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn parse(tokens: Vec<String>) -> Result<Vec<String>, String> {
[INFO] [stdout]   |              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `command`
[INFO] [stdout]  --> src/client/execute.rs:6:16
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn execute(command: Vec<String>) -> Result<Res, String> {
[INFO] [stdout]   |                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_command`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `db::token`
[INFO] [stdout]  --> src/server/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use db::token;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Exit` and `Success` are never constructed
[INFO] [stdout]  --> src/client/execute.rs:2:3
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum Res {
[INFO] [stdout]   |          --- variants in this enum
[INFO] [stdout] 2 |   Exit,
[INFO] [stdout]   |   ^^^^
[INFO] [stdout] 3 |   Success(String),
[INFO] [stdout]   |   ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `db::token`
[INFO] [stdout]  --> src/server/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use db::token;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]  --> src/client/tokenize.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn tokenize(line: String) -> Result<Vec<String>, String> {
[INFO] [stdout]   |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]  --> src/client/parse.rs:1:14
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn parse(tokens: Vec<String>) -> Result<Vec<String>, String> {
[INFO] [stdout]   |              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `command`
[INFO] [stdout]  --> src/client/execute.rs:6:16
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn execute(command: Vec<String>) -> Result<Res, String> {
[INFO] [stdout]   |                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_command`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Exit` and `Success` are never constructed
[INFO] [stdout]  --> src/client/execute.rs:2:3
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum Res {
[INFO] [stdout]   |          --- variants in this enum
[INFO] [stdout] 2 |   Exit,
[INFO] [stdout]   |   ^^^^
[INFO] [stdout] 3 |   Success(String),
[INFO] [stdout]   |   ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "a78252526ea16fbeef5aa7104da17557710bc6606755709fe8496ea6334e7b74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a78252526ea16fbeef5aa7104da17557710bc6606755709fe8496ea6334e7b74", kill_on_drop: false }`
[INFO] [stdout] a78252526ea16fbeef5aa7104da17557710bc6606755709fe8496ea6334e7b74