[INFO] cloning repository https://github.com/stevenmsl/rust_tree [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stevenmsl/rust_tree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstevenmsl%2Frust_tree", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstevenmsl%2Frust_tree'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 31c7203271eec754d5592377986e3f2e6ba7f7c9 [INFO] testing stevenmsl/rust_tree against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstevenmsl%2Frust_tree" "/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/stevenmsl/rust_tree [INFO] finished tweaking git repo https://github.com/stevenmsl/rust_tree [INFO] tweaked toml for git repo https://github.com/stevenmsl/rust_tree written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/stevenmsl/rust_tree 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/stevenmsl/rust_tree 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-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] a314a730f767eda919e51defb6f0ab66564873bdd3c0d99d228d32af0e4bdf8c [INFO] running `Command { std: "docker" "start" "-a" "a314a730f767eda919e51defb6f0ab66564873bdd3c0d99d228d32af0e4bdf8c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a314a730f767eda919e51defb6f0ab66564873bdd3c0d99d228d32af0e4bdf8c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a314a730f767eda919e51defb6f0ab66564873bdd3c0d99d228d32af0e4bdf8c", kill_on_drop: false }` [INFO] [stdout] a314a730f767eda919e51defb6f0ab66564873bdd3c0d99d228d32af0e4bdf8c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] de1d8444cf31bbbe607f28fdf8d42f36771a62a92f7fbf83da74c0f0b1b9380b [INFO] running `Command { std: "docker" "start" "-a" "de1d8444cf31bbbe607f28fdf8d42f36771a62a92f7fbf83da74c0f0b1b9380b", kill_on_drop: false }` [INFO] [stderr] Compiling rust_tree v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: fields `value` and `children` are never read [INFO] [stdout] --> src/main.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 5 | struct Node { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 6 | value: i32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 24 | children: RefCell>>, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.45s [INFO] running `Command { std: "docker" "inspect" "de1d8444cf31bbbe607f28fdf8d42f36771a62a92f7fbf83da74c0f0b1b9380b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "de1d8444cf31bbbe607f28fdf8d42f36771a62a92f7fbf83da74c0f0b1b9380b", kill_on_drop: false }` [INFO] [stdout] de1d8444cf31bbbe607f28fdf8d42f36771a62a92f7fbf83da74c0f0b1b9380b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 5867d5d17102bd67f0818045f143793aeba5ece978e04356d037adc76489ce76 [INFO] running `Command { std: "docker" "start" "-a" "5867d5d17102bd67f0818045f143793aeba5ece978e04356d037adc76489ce76", kill_on_drop: false }` [INFO] [stderr] Compiling rust_tree v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: fields `value` and `children` are never read [INFO] [stdout] --> src/main.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 5 | struct Node { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 6 | value: i32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 24 | children: RefCell>>, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.29s [INFO] running `Command { std: "docker" "inspect" "5867d5d17102bd67f0818045f143793aeba5ece978e04356d037adc76489ce76", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5867d5d17102bd67f0818045f143793aeba5ece978e04356d037adc76489ce76", kill_on_drop: false }` [INFO] [stdout] 5867d5d17102bd67f0818045f143793aeba5ece978e04356d037adc76489ce76 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 09d32acb0d0293eaee950bd4b53a3664b14b53d6f60d2d18380729c66f213f2e [INFO] running `Command { std: "docker" "start" "-a" "09d32acb0d0293eaee950bd4b53a3664b14b53d6f60d2d18380729c66f213f2e", kill_on_drop: false }` [INFO] [stderr] warning: fields `value` and `children` are never read [INFO] [stderr] --> src/main.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 5 | struct Node { [INFO] [stderr] | ---- fields in this struct [INFO] [stderr] 6 | value: i32, [INFO] [stderr] | ^^^^^ [INFO] [stderr] ... [INFO] [stderr] 24 | children: RefCell>>, [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: `rust_tree` (bin "rust_tree" test) generated 1 warning [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_tree-2d200ec194334908) [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" "09d32acb0d0293eaee950bd4b53a3664b14b53d6f60d2d18380729c66f213f2e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "09d32acb0d0293eaee950bd4b53a3664b14b53d6f60d2d18380729c66f213f2e", kill_on_drop: false }` [INFO] [stdout] 09d32acb0d0293eaee950bd4b53a3664b14b53d6f60d2d18380729c66f213f2e