[INFO] cloning repository https://github.com/tamanobi/rust-practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tamanobi/rust-practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftamanobi%2Frust-practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftamanobi%2Frust-practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 71e2d57323497439e16836e3bcc080d9472a9fa5
[INFO] testing tamanobi/rust-practice against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftamanobi%2Frust-practice" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tamanobi/rust-practice
[INFO] finished tweaking git repo https://github.com/tamanobi/rust-practice
[INFO] tweaked toml for git repo https://github.com/tamanobi/rust-practice written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tamanobi/rust-practice on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tamanobi/rust-practice 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 405b515ceff477e8f15f812f71e929a949967a0aa6dd7df7ce19581b82874547
[INFO] running `Command { std: "docker" "start" "-a" "405b515ceff477e8f15f812f71e929a949967a0aa6dd7df7ce19581b82874547", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "405b515ceff477e8f15f812f71e929a949967a0aa6dd7df7ce19581b82874547", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "405b515ceff477e8f15f812f71e929a949967a0aa6dd7df7ce19581b82874547", kill_on_drop: false }`
[INFO] [stdout] 405b515ceff477e8f15f812f71e929a949967a0aa6dd7df7ce19581b82874547
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f69b0274949679b874d9699313abeca593df37fe12c112dcd1635eb9f7328833
[INFO] running `Command { std: "docker" "start" "-a" "f69b0274949679b874d9699313abeca593df37fe12c112dcd1635eb9f7328833", kill_on_drop: false }`
[INFO] [stderr]    Compiling hello-cargo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `perform` is never used
[INFO] [stdout]  --> src/fruit_basket.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn perform() -> HashMap<String, u32> {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `perform` is never used
[INFO] [stdout]  --> src/indexing_tuple.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn perform() {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `perform` is never used
[INFO] [stdout]  --> src/read_file_content.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn perform(path: PathBuf) -> Result<String, Error> {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Counter` is never constructed
[INFO] [stdout]  --> src/iter.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Counter {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/iter.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl Counter {
[INFO] [stdout]   | ------------ associated function in this implementation
[INFO] [stdout] 8 |     pub fn new(length: usize) -> Counter {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "f69b0274949679b874d9699313abeca593df37fe12c112dcd1635eb9f7328833", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f69b0274949679b874d9699313abeca593df37fe12c112dcd1635eb9f7328833", kill_on_drop: false }`
[INFO] [stdout] f69b0274949679b874d9699313abeca593df37fe12c112dcd1635eb9f7328833
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a36577af26a95cd324cbc07df3700bc122027fe368eefc6153c3d417457f88b
[INFO] running `Command { std: "docker" "start" "-a" "7a36577af26a95cd324cbc07df3700bc122027fe368eefc6153c3d417457f88b", kill_on_drop: false }`
[INFO] [stderr]    Compiling hello-cargo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `perform` is never used
[INFO] [stdout]  --> src/fruit_basket.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn perform() -> HashMap<String, u32> {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `perform` is never used
[INFO] [stdout]  --> src/indexing_tuple.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn perform() {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "7a36577af26a95cd324cbc07df3700bc122027fe368eefc6153c3d417457f88b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a36577af26a95cd324cbc07df3700bc122027fe368eefc6153c3d417457f88b", kill_on_drop: false }`
[INFO] [stdout] 7a36577af26a95cd324cbc07df3700bc122027fe368eefc6153c3d417457f88b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 19845dca5a673a3d06aef6b268c7f10a1f06df718887439ef8ad4bb7e35c9dc0
[INFO] running `Command { std: "docker" "start" "-a" "19845dca5a673a3d06aef6b268c7f10a1f06df718887439ef8ad4bb7e35c9dc0", kill_on_drop: false }`
[INFO] [stderr] warning: function `perform` is never used
[INFO] [stderr]  --> src/fruit_basket.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn perform() -> HashMap<String, u32> {
[INFO] [stderr]   |        ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `perform` is never used
[INFO] [stderr]  --> src/indexing_tuple.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn perform() {
[INFO] [stderr]   |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `hello-cargo` (bin "hello-cargo" test) generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/hello_cargo-ef927894f27a66b3)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::any_type ... ok
[INFO] [stdout] test tests::exploration ... ok
[INFO] [stdout] test tests::implement_iter ... ok
[INFO] [stdout] test tests::iter ... ok
[INFO] [stdout] test tests::read_file_content ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "19845dca5a673a3d06aef6b268c7f10a1f06df718887439ef8ad4bb7e35c9dc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19845dca5a673a3d06aef6b268c7f10a1f06df718887439ef8ad4bb7e35c9dc0", kill_on_drop: false }`
[INFO] [stdout] 19845dca5a673a3d06aef6b268c7f10a1f06df718887439ef8ad4bb7e35c9dc0