[INFO] updating cached repository https://github.com/sepiropht/git-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 319c0432948e19bdd3b9664372d49fe856da9509
[INFO] checking sepiropht/git-rs against master#4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb for pr-64672
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsepiropht%2Fgit-rs" "work/builds/worker-4/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sepiropht/git-rs on toolchain 4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/sepiropht/git-rs
[INFO] finished tweaking git repo https://github.com/sepiropht/git-rs
[INFO] tweaked toml for git repo https://github.com/sepiropht/git-rs written to work/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/sepiropht/git-rs already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5f0c60822710f72d69082b05772cfac6c63be96c73b0772028cfc33af401f16e
[INFO] running `"docker" "start" "-a" "5f0c60822710f72d69082b05772cfac6c63be96c73b0772028cfc33af401f16e"`
[INFO] [stderr]     Checking rust-crypto v0.2.36
[INFO] [stderr]     Checking git-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::io::Write`
[INFO] [stderr]  --> src/commit.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::Write;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crypto::sha1::Sha1`
[INFO] [stderr]  --> src/commit.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crypto::sha1::Sha1;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crypto::digest::Digest`
[INFO] [stderr]  --> src/commit.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crypto::digest::Digest;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `regex::Regex`
[INFO] [stderr]  --> src/commit.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use regex::Regex;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::error::TgitError`
[INFO] [stderr]  --> src/commit.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use super::error::TgitError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::index::Index`
[INFO] [stderr]  --> src/commit.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use super::index::Index;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Write`
[INFO] [stderr]  --> src/commit.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::Write;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crypto::sha1::Sha1`
[INFO] [stderr]  --> src/commit.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crypto::sha1::Sha1;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crypto::digest::Digest`
[INFO] [stderr]  --> src/commit.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crypto::digest::Digest;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `regex::Regex`
[INFO] [stderr]  --> src/commit.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use regex::Regex;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::error::TgitError`
[INFO] [stderr]  --> src/commit.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use super::error::TgitError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::index::Index`
[INFO] [stderr]  --> src/commit.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use super::index::Index;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/file.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 33 | /     loop {
[INFO] [stderr] 34 | |       if FileService::is_tgit(&current_dir) {
[INFO] [stderr] 35 | |         return Ok(current_dir);
[INFO] [stderr] 36 | |       }
[INFO] [stderr] ...  |
[INFO] [stderr] 39 | |       }
[INFO] [stderr] 40 | |     }
[INFO] [stderr]    | |_____- any code following this expression is unreachable
[INFO] [stderr] 41 |       Ok(current_dir)
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/file.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 33 | /     loop {
[INFO] [stderr] 34 | |       if FileService::is_tgit(&current_dir) {
[INFO] [stderr] 35 | |         return Ok(current_dir);
[INFO] [stderr] 36 | |       }
[INFO] [stderr] ...  |
[INFO] [stderr] 39 | |       }
[INFO] [stderr] 40 | |     }
[INFO] [stderr]    | |_____- any code following this expression is unreachable
[INFO] [stderr] 41 |       Ok(current_dir)
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/file.rs:56:9
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/file.rs:56:9
[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/error.rs:7:3
[INFO] [stderr]   |
[INFO] [stderr] 7 |   InvalidCommit,
[INFO] [stderr]   |   ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Tree`
[INFO] [stderr]  --> src/types.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub enum Tree {
[INFO] [stderr]   | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `print`
[INFO] [stderr]   --> src/index.rs:44:3
[INFO] [stderr]    |
[INFO] [stderr] 44 |   pub fn print(&self) {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `clear`
[INFO] [stderr]   --> src/index.rs:58:3
[INFO] [stderr]    |
[INFO] [stderr] 58 |   pub fn clear(&mut self) -> io::Result<()> {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_head_ref`
[INFO] [stderr]   --> src/file.rs:52:3
[INFO] [stderr]    |
[INFO] [stderr] 52 |   pub fn get_head_ref(&self) -> io::Result<PathBuf> {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Commit`
[INFO] [stderr]   --> src/commit.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub struct Commit {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `InvalidCommit`
[INFO] [stderr]  --> src/error.rs:7:3
[INFO] [stderr]   |
[INFO] [stderr] 7 |   InvalidCommit,
[INFO] [stderr]   |   ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Tree`
[INFO] [stderr]  --> src/types.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub enum Tree {
[INFO] [stderr]   | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `print`
[INFO] [stderr]   --> src/index.rs:44:3
[INFO] [stderr]    |
[INFO] [stderr] 44 |   pub fn print(&self) {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `clear`
[INFO] [stderr]   --> src/index.rs:58:3
[INFO] [stderr]    |
[INFO] [stderr] 58 |   pub fn clear(&mut self) -> io::Result<()> {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_head_ref`
[INFO] [stderr]   --> src/file.rs:52:3
[INFO] [stderr]    |
[INFO] [stderr] 52 |   pub fn get_head_ref(&self) -> io::Result<PathBuf> {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Commit`
[INFO] [stderr]   --> src/commit.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub struct Commit {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/index.rs:53:7
[INFO] [stderr]    |
[INFO] [stderr] 53 |       writeln!(&mut index, "{} {}",  hash, 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]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/index.rs:53:7
[INFO] [stderr]    |
[INFO] [stderr] 53 |       writeln!(&mut index, "{} {}",  hash, 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]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.59s
[INFO] running `"docker" "inspect" "5f0c60822710f72d69082b05772cfac6c63be96c73b0772028cfc33af401f16e"`
[INFO] running `"docker" "rm" "-f" "5f0c60822710f72d69082b05772cfac6c63be96c73b0772028cfc33af401f16e"`
[INFO] [stdout] 5f0c60822710f72d69082b05772cfac6c63be96c73b0772028cfc33af401f16e