[INFO] cloning repository https://github.com/sayanarijit/rust-tgit [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sayanarijit/rust-tgit" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsayanarijit%2Frust-tgit"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsayanarijit%2Frust-tgit'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] e51882df635928112144c02aae959bfbc5b53264 [INFO] checking sayanarijit/rust-tgit against master#6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257 for pr-70872 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsayanarijit%2Frust-tgit" "/workspace/builds/worker-4/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/sayanarijit/rust-tgit on toolchain 6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257 [INFO] running `"/workspace/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/sayanarijit/rust-tgit [INFO] finished tweaking git repo https://github.com/sayanarijit/rust-tgit [INFO] tweaked toml for git repo https://github.com/sayanarijit/rust-tgit written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/sayanarijit/rust-tgit already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 1693d61c2a7b0e6d40e6ea7a37a1fdebf6fab63e91a8337c20ce294b2ae86c1e [INFO] running `"docker" "start" "-a" "1693d61c2a7b0e6d40e6ea7a37a1fdebf6fab63e91a8337c20ce294b2ae86c1e"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Checking tgit v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/file.rs:56:13 [INFO] [stderr] | [INFO] [stderr] 56 | let mut ref_path = ref_path.split_off(6); [INFO] [stderr] | ----^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `InvalidCommit` [INFO] [stderr] --> src/errors.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | InvalidCommit, [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get_head_ref` [INFO] [stderr] --> src/file.rs:52:5 [INFO] [stderr] | [INFO] [stderr] 52 | pub fn get_head_ref(&self) -> io::Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `clear` [INFO] [stderr] --> src/index.rs:55:5 [INFO] [stderr] | [INFO] [stderr] 55 | pub fn clear(&mut self) -> io::Result<()> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `Tree` [INFO] [stderr] --> src/types.rs:8:10 [INFO] [stderr] | [INFO] [stderr] 8 | pub enum Tree { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/file.rs:55:9 [INFO] [stderr] | [INFO] [stderr] 55 | head_file.read_to_string(&mut ref_path); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/index.rs:57:9 [INFO] [stderr] | [INFO] [stderr] 57 | self.write(); [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/file.rs:56:13 [INFO] [stderr] | [INFO] [stderr] 56 | let mut ref_path = ref_path.split_off(6); [INFO] [stderr] | ----^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `InvalidCommit` [INFO] [stderr] --> src/errors.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | InvalidCommit, [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get_head_ref` [INFO] [stderr] --> src/file.rs:52:5 [INFO] [stderr] | [INFO] [stderr] 52 | pub fn get_head_ref(&self) -> io::Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `clear` [INFO] [stderr] --> src/index.rs:55:5 [INFO] [stderr] | [INFO] [stderr] 55 | pub fn clear(&mut self) -> io::Result<()> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `Tree` [INFO] [stderr] --> src/types.rs:8:10 [INFO] [stderr] | [INFO] [stderr] 8 | pub enum Tree { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/file.rs:55:9 [INFO] [stderr] | [INFO] [stderr] 55 | head_file.read_to_string(&mut ref_path); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/index.rs:57:9 [INFO] [stderr] | [INFO] [stderr] 57 | self.write(); [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.83s [INFO] running `"docker" "inspect" "1693d61c2a7b0e6d40e6ea7a37a1fdebf6fab63e91a8337c20ce294b2ae86c1e"` [INFO] running `"docker" "rm" "-f" "1693d61c2a7b0e6d40e6ea7a37a1fdebf6fab63e91a8337c20ce294b2ae86c1e"` [INFO] [stdout] 1693d61c2a7b0e6d40e6ea7a37a1fdebf6fab63e91a8337c20ce294b2ae86c1e