[INFO] cloning repository https://github.com/sepiropht/git-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sepiropht/git-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsepiropht%2Fgit-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsepiropht%2Fgit-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 319c0432948e19bdd3b9664372d49fe856da9509
[INFO] checking sepiropht/git-rs against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsepiropht%2Fgit-rs" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sepiropht/git-rs on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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 /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/sepiropht/git-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c908a24ae3ab79a0d287739723f439900a84ff6af31eba3a54f7cdde5934d7f9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c908a24ae3ab79a0d287739723f439900a84ff6af31eba3a54f7cdde5934d7f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c908a24ae3ab79a0d287739723f439900a84ff6af31eba3a54f7cdde5934d7f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c908a24ae3ab79a0d287739723f439900a84ff6af31eba3a54f7cdde5934d7f9", kill_on_drop: false }`
[INFO] [stdout] c908a24ae3ab79a0d287739723f439900a84ff6af31eba3a54f7cdde5934d7f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3060cc7905a91ef14c02cd3305fdd40a26a69ebfcc3deaac487bab1621e3bb70
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3060cc7905a91ef14c02cd3305fdd40a26a69ebfcc3deaac487bab1621e3bb70", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.55
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling regex v1.1.6
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking regex-syntax v0.6.6
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking aho-corasick v0.7.3
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking git-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/commit.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crypto::sha1::Sha1`
[INFO] [stdout]  --> src/commit.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crypto::sha1::Sha1;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crypto::digest::Digest`
[INFO] [stdout]  --> src/commit.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crypto::digest::Digest;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `regex::Regex`
[INFO] [stdout]  --> src/commit.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use regex::Regex;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::error::TgitError`
[INFO] [stdout]  --> src/commit.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use super::error::TgitError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::index::Index`
[INFO] [stdout]  --> src/commit.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use super::index::Index;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/commit.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crypto::sha1::Sha1`
[INFO] [stdout]  --> src/commit.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crypto::sha1::Sha1;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crypto::digest::Digest`
[INFO] [stdout]  --> src/commit.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crypto::digest::Digest;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `regex::Regex`
[INFO] [stdout]  --> src/commit.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use regex::Regex;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::error::TgitError`
[INFO] [stdout]  --> src/commit.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use super::error::TgitError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::index::Index`
[INFO] [stdout]  --> src/commit.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use super::index::Index;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/file.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | /     loop {
[INFO] [stdout] 34 | |       if FileService::is_tgit(&current_dir) {
[INFO] [stdout] 35 | |         return Ok(current_dir);
[INFO] [stdout] 36 | |       }
[INFO] [stdout] ...  |
[INFO] [stdout] 39 | |       }
[INFO] [stdout] 40 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 41 |       Ok(current_dir)
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/file.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     let mut ref_path = ref_path.split_off(6);
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/file.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | /     loop {
[INFO] [stdout] 34 | |       if FileService::is_tgit(&current_dir) {
[INFO] [stdout] 35 | |         return Ok(current_dir);
[INFO] [stdout] 36 | |       }
[INFO] [stdout] ...  |
[INFO] [stdout] 39 | |       }
[INFO] [stdout] 40 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 41 |       Ok(current_dir)
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InvalidCommit`
[INFO] [stdout]  --> src/error.rs:7:3
[INFO] [stdout]   |
[INFO] [stdout] 7 |   InvalidCommit,
[INFO] [stdout]   |   ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Tree`
[INFO] [stdout]  --> src/types.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub enum Tree {
[INFO] [stdout]   |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `print`
[INFO] [stdout]   --> src/index.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 |   pub fn print(&self) {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `clear`
[INFO] [stdout]   --> src/index.rs:58:10
[INFO] [stdout]    |
[INFO] [stdout] 58 |   pub fn clear(&mut self) -> io::Result<()> {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_head_ref`
[INFO] [stdout]   --> src/file.rs:52:10
[INFO] [stdout]    |
[INFO] [stdout] 52 |   pub fn get_head_ref(&self) -> io::Result<PathBuf> {
[INFO] [stdout]    |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Commit`
[INFO] [stdout]   --> src/commit.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Commit {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/file.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     let mut ref_path = ref_path.split_off(6);
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InvalidCommit`
[INFO] [stdout]  --> src/error.rs:7:3
[INFO] [stdout]   |
[INFO] [stdout] 7 |   InvalidCommit,
[INFO] [stdout]   |   ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Tree`
[INFO] [stdout]  --> src/types.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub enum Tree {
[INFO] [stdout]   |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `print`
[INFO] [stdout]   --> src/index.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 |   pub fn print(&self) {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `clear`
[INFO] [stdout]   --> src/index.rs:58:10
[INFO] [stdout]    |
[INFO] [stdout] 58 |   pub fn clear(&mut self) -> io::Result<()> {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_head_ref`
[INFO] [stdout]   --> src/file.rs:52:10
[INFO] [stdout]    |
[INFO] [stdout] 52 |   pub fn get_head_ref(&self) -> io::Result<PathBuf> {
[INFO] [stdout]    |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Commit`
[INFO] [stdout]   --> src/commit.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Commit {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/index.rs:53:7
[INFO] [stdout]    |
[INFO] [stdout] 53 |       writeln!(&mut index, "{} {}",  hash, path);
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/index.rs:53:7
[INFO] [stdout]    |
[INFO] [stdout] 53 |       writeln!(&mut index, "{} {}",  hash, path);
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.39s
[INFO] running `Command { std: "docker" "inspect" "3060cc7905a91ef14c02cd3305fdd40a26a69ebfcc3deaac487bab1621e3bb70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3060cc7905a91ef14c02cd3305fdd40a26a69ebfcc3deaac487bab1621e3bb70", kill_on_drop: false }`
[INFO] [stdout] 3060cc7905a91ef14c02cd3305fdd40a26a69ebfcc3deaac487bab1621e3bb70