[INFO] cloning repository https://github.com/42yeah/rust-book-impls [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/42yeah/rust-book-impls" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F42yeah%2Frust-book-impls", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F42yeah%2Frust-book-impls'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4e7f532c8fbfea3bc002200610071b035515aebd [INFO] checking 42yeah/rust-book-impls against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F42yeah%2Frust-book-impls" "/workspace/builds/worker-80/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-80/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/42yeah/rust-book-impls on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/42yeah/rust-book-impls [INFO] finished tweaking git repo https://github.com/42yeah/rust-book-impls [INFO] tweaked toml for git repo https://github.com/42yeah/rust-book-impls written to /workspace/builds/worker-80/source/Cargo.toml [INFO] crate git repo https://github.com/42yeah/rust-book-impls already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "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-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6cda892428d677ad4dafa6600596a39b9b61ae024937427154229331986c61d1 [INFO] running `Command { std: "docker" "start" "-a" "6cda892428d677ad4dafa6600596a39b9b61ae024937427154229331986c61d1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6cda892428d677ad4dafa6600596a39b9b61ae024937427154229331986c61d1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6cda892428d677ad4dafa6600596a39b9b61ae024937427154229331986c61d1", kill_on_drop: false }` [INFO] [stdout] 6cda892428d677ad4dafa6600596a39b9b61ae024937427154229331986c61d1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f6dc887bd54a4dd3f3db69aa09592f56f623e049b9f1ca636a67cb8b565761e5 [INFO] running `Command { std: "docker" "start" "-a" "f6dc887bd54a4dd3f3db69aa09592f56f623e049b9f1ca636a67cb8b565761e5", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling libc v0.2.94 [INFO] [stderr] Compiling getrandom v0.2.2 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Checking http-server v0.1.0 (/opt/rustwide/workdir/http-server) [INFO] [stderr] Checking minigrep v0.1.0 (/opt/rustwide/workdir/minigrep) [INFO] [stderr] Checking ptr v0.1.0 (/opt/rustwide/workdir/ptr) [INFO] [stderr] Checking state-pattern v0.1.0 (/opt/rustwide/workdir/state-pattern) [INFO] [stderr] Checking adder v0.1.0 (/opt/rustwide/workdir/adder) [INFO] [stderr] Checking playground v0.1.0 (/opt/rustwide/workdir/playground) [INFO] [stderr] Checking pig-latin v0.1.0 (/opt/rustwide/workdir/pig-latin) [INFO] [stderr] Checking concurrency v0.1.0 (/opt/rustwide/workdir/concurrency) [INFO] [stderr] Checking dangerous v0.1.0 (/opt/rustwide/workdir/dangerous) [INFO] [stderr] Checking area v0.1.0 (/opt/rustwide/workdir/area) [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> playground/src/main.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let v = vecky!(1; 2; 3); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> playground/src/main.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let v = vecky!(1; 2; 3); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `extern` block uses type `str`, which is not FFI-safe [INFO] [stdout] --> dangerous/src/main.rs:2:20 [INFO] [stdout] | [INFO] [stdout] 2 | fn printf(fmt: &str); [INFO] [stdout] | ^^^^ not FFI-safe [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(improper_ctypes)]` on by default [INFO] [stdout] = help: consider using `*const u8` and a length instead [INFO] [stdout] = note: string slices have no C equivalent [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `extern` block uses type `str`, which is not FFI-safe [INFO] [stdout] --> dangerous/src/main.rs:2:20 [INFO] [stdout] | [INFO] [stdout] 2 | fn printf(fmt: &str); [INFO] [stdout] | ^^^^ not FFI-safe [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(improper_ctypes)]` on by default [INFO] [stdout] = help: consider using `*const u8` and a length instead [INFO] [stdout] = note: string slices have no C equivalent [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `data` [INFO] [stdout] --> ptr/src/lib.rs:101:13 [INFO] [stdout] | [INFO] [stdout] 101 | data: i32, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `children` [INFO] [stdout] --> ptr/src/lib.rs:102:13 [INFO] [stdout] | [INFO] [stdout] 102 | children: RefCell>>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rand_core v0.6.2 [INFO] [stderr] Checking rand_chacha v0.3.0 [INFO] [stderr] Checking rand v0.8.3 [INFO] [stderr] Checking guessing-game v0.1.0 (/opt/rustwide/workdir/guessing-game) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 06s [INFO] running `Command { std: "docker" "inspect" "f6dc887bd54a4dd3f3db69aa09592f56f623e049b9f1ca636a67cb8b565761e5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f6dc887bd54a4dd3f3db69aa09592f56f623e049b9f1ca636a67cb8b565761e5", kill_on_drop: false }` [INFO] [stdout] f6dc887bd54a4dd3f3db69aa09592f56f623e049b9f1ca636a67cb8b565761e5