[INFO] cloning repository https://github.com/yqmmm/git-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yqmmm/git-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyqmmm%2Fgit-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyqmmm%2Fgit-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ded92f631032c9ee0b38650edb26a154dd876bd4
[INFO] testing yqmmm/git-rust against master#61223975d46f794466efa832bc7562b9707ecc46+rustflags=-Copt-level=3 for pr-121282
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyqmmm%2Fgit-rust" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yqmmm/git-rust on toolchain 61223975d46f794466efa832bc7562b9707ecc46
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yqmmm/git-rust
[INFO] finished tweaking git repo https://github.com/yqmmm/git-rust
[INFO] tweaked toml for git repo https://github.com/yqmmm/git-rust written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/yqmmm/git-rust 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" "+61223975d46f794466efa832bc7562b9707ecc46" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 79b594798369250e0483ca49dc87a68dafc6bd79810ae08fb23a06d8aa80f54b
[INFO] running `Command { std: "docker" "start" "-a" "79b594798369250e0483ca49dc87a68dafc6bd79810ae08fb23a06d8aa80f54b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79b594798369250e0483ca49dc87a68dafc6bd79810ae08fb23a06d8aa80f54b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79b594798369250e0483ca49dc87a68dafc6bd79810ae08fb23a06d8aa80f54b", kill_on_drop: false }`
[INFO] [stdout] 79b594798369250e0483ca49dc87a68dafc6bd79810ae08fb23a06d8aa80f54b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Copt-level=3" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4617e8c7176d2faef532a6fc1317db6848d3f46be68e69561552d0bb08ddfc6a
[INFO] running `Command { std: "docker" "start" "-a" "4617e8c7176d2faef532a6fc1317db6848d3f46be68e69561552d0bb08ddfc6a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling adler32 v1.0.4
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling block-padding v0.1.5
[INFO] [stderr]    Compiling miniz_oxide v0.3.6
[INFO] [stderr]    Compiling textwrap v0.12.1
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling os_str_bytes v2.4.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling hex v0.3.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]    Compiling flate2 v1.0.14
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling sha-1 v0.8.2
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]    Compiling clap v3.0.0-beta.2
[INFO] [stderr]    Compiling git-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::object`
[INFO] [stdout]   --> src/repo.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use super::object;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `BufReader`, `Read`
[INFO] [stdout]  --> src/object/mod.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{BufRead, BufReader, Read, Write};
[INFO] [stdout]   |               ^^^^^^^  ^^^^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `flate2::read::ZlibDecoder`
[INFO] [stdout]  --> src/object/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use flate2::read::ZlibDecoder;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/object/commit.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader`, `Read`, `SeekFrom`, `Seek`
[INFO] [stdout]  --> src/object/commit.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{BufRead, BufReader, Cursor, Read, Seek, SeekFrom};
[INFO] [stdout]   |                        ^^^^^^^^^          ^^^^  ^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `repo`
[INFO] [stdout]  --> src/object/blob.rs:9:27
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn new(data: Vec<u8>, repo: &GitRepository) -> Self {
[INFO] [stdout]   |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_repo`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `repo`
[INFO] [stdout]   --> src/object/tree.rs:35:27
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn new(data: Vec<u8>, repo: &GitRepository) -> Self {
[INFO] [stdout]    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_repo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `repo`
[INFO] [stdout]   --> src/object/commit.rs:20:27
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn new(data: Vec<u8>, repo: &GitRepository) -> Self {
[INFO] [stdout]    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_repo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `repo`
[INFO] [stdout]  --> src/object/tag.rs:9:27
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn new(data: Vec<u8>, repo: &GitRepository) -> Self {
[INFO] [stdout]   |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_repo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `worktree` is never read
[INFO] [stdout]   --> src/repo.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct GitRepository {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] 13 |     worktree: PathBuf,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `parent` is never read
[INFO] [stdout]   --> src/object/commit.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct GitCommit {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 16 |     parent: Option<Rc<Box<dyn GitObject>>>, // TODO: is Box in Rc the right thing to do?
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/object/tree.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |             reader.read_until(0x20, &mut mode);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 41 |             let _ = reader.read_until(0x20, &mut mode);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/object/tree.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |             reader.read_until(0, &mut filename);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 49 |             let _ = reader.read_until(0, &mut filename);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/object/tree.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |             reader.read_exact(&mut sha);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 54 |             let _ = reader.read_exact(&mut sha);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:99:9
[INFO] [stdout]    |
[INFO] [stdout] 99 |     let mut commit = repo.read_object(&master_sha).unwrap();
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 29.68s
[INFO] running `Command { std: "docker" "inspect" "4617e8c7176d2faef532a6fc1317db6848d3f46be68e69561552d0bb08ddfc6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4617e8c7176d2faef532a6fc1317db6848d3f46be68e69561552d0bb08ddfc6a", kill_on_drop: false }`
[INFO] [stdout] 4617e8c7176d2faef532a6fc1317db6848d3f46be68e69561552d0bb08ddfc6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Copt-level=3" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6fab405cf289715d2c962afd261c0635f408fb57df3ee50a430279b28cf95ee
[INFO] running `Command { std: "docker" "start" "-a" "b6fab405cf289715d2c962afd261c0635f408fb57df3ee50a430279b28cf95ee", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `super::object`
[INFO] [stdout]   --> src/repo.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use super::object;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `BufReader`, `Read`
[INFO] [stdout]  --> src/object/mod.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{BufRead, BufReader, Read, Write};
[INFO] [stdout]   |               ^^^^^^^  ^^^^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `flate2::read::ZlibDecoder`
[INFO] [stdout]  --> src/object/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use flate2::read::ZlibDecoder;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/object/commit.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader`, `Read`, `SeekFrom`, `Seek`
[INFO] [stdout]  --> src/object/commit.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{BufRead, BufReader, Cursor, Read, Seek, SeekFrom};
[INFO] [stdout]   |                        ^^^^^^^^^          ^^^^  ^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `repo`
[INFO] [stdout]  --> src/object/blob.rs:9:27
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn new(data: Vec<u8>, repo: &GitRepository) -> Self {
[INFO] [stdout]   |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_repo`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `repo`
[INFO] [stdout]   --> src/object/tree.rs:35:27
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn new(data: Vec<u8>, repo: &GitRepository) -> Self {
[INFO] [stdout]    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_repo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `repo`
[INFO] [stdout]   --> src/object/commit.rs:20:27
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn new(data: Vec<u8>, repo: &GitRepository) -> Self {
[INFO] [stdout]    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_repo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `repo`
[INFO] [stdout]  --> src/object/tag.rs:9:27
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn new(data: Vec<u8>, repo: &GitRepository) -> Self {
[INFO] [stdout]   |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_repo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `worktree` is never read
[INFO] [stdout]   --> src/repo.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct GitRepository {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] 13 |     worktree: PathBuf,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `parent` is never read
[INFO] [stdout]   --> src/object/commit.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct GitCommit {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 16 |     parent: Option<Rc<Box<dyn GitObject>>>, // TODO: is Box in Rc the right thing to do?
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/object/tree.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |             reader.read_until(0x20, &mut mode);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 41 |             let _ = reader.read_until(0x20, &mut mode);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/object/tree.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |             reader.read_until(0, &mut filename);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 49 |             let _ = reader.read_until(0, &mut filename);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/object/tree.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |             reader.read_exact(&mut sha);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 54 |             let _ = reader.read_exact(&mut sha);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling git-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::object`
[INFO] [stdout]   --> src/repo.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use super::object;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter`
[INFO] [stdout]    --> src/repo.rs:125:9
[INFO] [stdout]     |
[INFO] [stdout] 125 |     use std::iter;
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `BufReader`, `Read`
[INFO] [stdout]  --> src/object/mod.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{BufRead, BufReader, Read, Write};
[INFO] [stdout]   |               ^^^^^^^  ^^^^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `flate2::read::ZlibDecoder`
[INFO] [stdout]  --> src/object/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use flate2::read::ZlibDecoder;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/object/commit.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader`, `Read`, `SeekFrom`, `Seek`
[INFO] [stdout]  --> src/object/commit.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{BufRead, BufReader, Cursor, Read, Seek, SeekFrom};
[INFO] [stdout]   |                        ^^^^^^^^^          ^^^^  ^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]   --> src/object/mod.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |     use std::fs::File;
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `GitBlob` is imported redundantly
[INFO] [stdout]   --> src/object/mod.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |     use crate::object::GitBlob;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 67 |
[INFO] [stdout] 68 |     use super::*;
[INFO] [stdout]    |         -------- the item `GitBlob` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:99:9
[INFO] [stdout]    |
[INFO] [stdout] 99 |     let mut commit = repo.read_object(&master_sha).unwrap();
[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: unused variable: `repo`
[INFO] [stdout]  --> src/object/blob.rs:9:27
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn new(data: Vec<u8>, repo: &GitRepository) -> Self {
[INFO] [stdout]   |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_repo`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `repo`
[INFO] [stdout]   --> src/object/tree.rs:35:27
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn new(data: Vec<u8>, repo: &GitRepository) -> Self {
[INFO] [stdout]    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_repo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `repo`
[INFO] [stdout]   --> src/object/commit.rs:20:27
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn new(data: Vec<u8>, repo: &GitRepository) -> Self {
[INFO] [stdout]    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_repo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `repo`
[INFO] [stdout]  --> src/object/tag.rs:9:27
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn new(data: Vec<u8>, repo: &GitRepository) -> Self {
[INFO] [stdout]   |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_repo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `worktree` is never read
[INFO] [stdout]   --> src/repo.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct GitRepository {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] 13 |     worktree: PathBuf,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `parent` is never read
[INFO] [stdout]   --> src/object/commit.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct GitCommit {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 16 |     parent: Option<Rc<Box<dyn GitObject>>>, // TODO: is Box in Rc the right thing to do?
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/object/tree.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |             reader.read_until(0x20, &mut mode);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 41 |             let _ = reader.read_until(0x20, &mut mode);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/object/tree.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |             reader.read_until(0, &mut filename);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 49 |             let _ = reader.read_until(0, &mut filename);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/object/tree.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |             reader.read_exact(&mut sha);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 54 |             let _ = reader.read_exact(&mut sha);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "b6fab405cf289715d2c962afd261c0635f408fb57df3ee50a430279b28cf95ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6fab405cf289715d2c962afd261c0635f408fb57df3ee50a430279b28cf95ee", kill_on_drop: false }`
[INFO] [stdout] b6fab405cf289715d2c962afd261c0635f408fb57df3ee50a430279b28cf95ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Copt-level=3" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d7ec213fe106a290ee51a9d408ee91f278c5452d90085fd71c3b4f4bf27ab7b4
[INFO] running `Command { std: "docker" "start" "-a" "d7ec213fe106a290ee51a9d408ee91f278c5452d90085fd71c3b4f4bf27ab7b4", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `super::object`
[INFO] [stderr]   --> src/repo.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use super::object;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufRead`, `BufReader`, `Read`
[INFO] [stderr]  --> src/object/mod.rs:2:15
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{BufRead, BufReader, Read, Write};
[INFO] [stderr]   |               ^^^^^^^  ^^^^^^^^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `flate2::read::ZlibDecoder`
[INFO] [stderr]  --> src/object/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use flate2::read::ZlibDecoder;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/object/commit.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufReader`, `Read`, `SeekFrom`, `Seek`
[INFO] [stderr]  --> src/object/commit.rs:2:24
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{BufRead, BufReader, Cursor, Read, Seek, SeekFrom};
[INFO] [stderr]   |                        ^^^^^^^^^          ^^^^  ^^^^  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `repo`
[INFO] [stderr]  --> src/object/blob.rs:9:27
[INFO] [stderr]   |
[INFO] [stderr] 9 |     fn new(data: Vec<u8>, repo: &GitRepository) -> Self {
[INFO] [stderr]   |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_repo`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `repo`
[INFO] [stderr]   --> src/object/tree.rs:35:27
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn new(data: Vec<u8>, repo: &GitRepository) -> Self {
[INFO] [stderr]    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_repo`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `repo`
[INFO] [stderr]   --> src/object/commit.rs:20:27
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn new(data: Vec<u8>, repo: &GitRepository) -> Self {
[INFO] [stderr]    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_repo`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `repo`
[INFO] [stderr]  --> src/object/tag.rs:9:27
[INFO] [stderr]   |
[INFO] [stderr] 9 |     fn new(data: Vec<u8>, repo: &GitRepository) -> Self {
[INFO] [stderr]   |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_repo`
[INFO] [stderr] 
[INFO] [stderr] warning: field `worktree` is never read
[INFO] [stderr]   --> src/repo.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub struct GitRepository {
[INFO] [stderr]    |            ------------- field in this struct
[INFO] [stderr] 13 |     worktree: PathBuf,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `parent` is never read
[INFO] [stderr]   --> src/object/commit.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 9  | pub struct GitCommit {
[INFO] [stderr]    |            --------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 16 |     parent: Option<Rc<Box<dyn GitObject>>>, // TODO: is Box in Rc the right thing to do?
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/object/tree.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |             reader.read_until(0x20, &mut mode);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 41 |             let _ = reader.read_until(0x20, &mut mode);
[INFO] [stderr]    |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/object/tree.rs:49:13
[INFO] [stderr]    |
[INFO] [stderr] 49 |             reader.read_until(0, &mut filename);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 49 |             let _ = reader.read_until(0, &mut filename);
[INFO] [stderr]    |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/object/tree.rs:54:13
[INFO] [stderr]    |
[INFO] [stderr] 54 |             reader.read_exact(&mut sha);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 54 |             let _ = reader.read_exact(&mut sha);
[INFO] [stderr]    |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter`
[INFO] [stderr]    --> src/repo.rs:125:9
[INFO] [stderr]     |
[INFO] [stderr] 125 |     use std::iter;
[INFO] [stderr]     |         ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]   --> src/object/mod.rs:64:9
[INFO] [stderr]    |
[INFO] [stderr] 64 |     use std::fs::File;
[INFO] [stderr]    |         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `GitBlob` is imported redundantly
[INFO] [stderr]   --> src/object/mod.rs:66:9
[INFO] [stderr]    |
[INFO] [stderr] 66 |     use crate::object::GitBlob;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 67 |
[INFO] [stderr] 68 |     use super::*;
[INFO] [stderr]    |         -------- the item `GitBlob` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: `git-rust` (lib) generated 14 warnings (run `cargo fix --lib -p git-rust` to apply 5 suggestions)
[INFO] [stderr] warning: `git-rust` (lib test) generated 17 warnings (14 duplicates) (run `cargo fix --lib -p git-rust --tests` to apply 2 suggestions)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:99:9
[INFO] [stderr]    |
[INFO] [stderr] 99 |     let mut commit = repo.read_object(&master_sha).unwrap();
[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: `git-rust` (bin "git" test) generated 1 warning (run `cargo fix --bin "git" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/git-756524594a1a41cf)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test object::tests::test_write_object ... ok
[INFO] [stdout] test repo::test::repo_files ... ok
[INFO] [stdout] test object::commit::tests::test_read_into_kv ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/git-2dcd1fb608e7fc17)
[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] [stderr]    Doc-tests git
[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" "d7ec213fe106a290ee51a9d408ee91f278c5452d90085fd71c3b4f4bf27ab7b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7ec213fe106a290ee51a9d408ee91f278c5452d90085fd71c3b4f4bf27ab7b4", kill_on_drop: false }`
[INFO] [stdout] d7ec213fe106a290ee51a9d408ee91f278c5452d90085fd71c3b4f4bf27ab7b4
[INFO] testing yqmmm/git-rust against try#d073071d77ce0f93b4fd8cc567a1e2b9e1b22126+rustflags=-Copt-level=3 for pr-121282
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyqmmm%2Fgit-rust" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yqmmm/git-rust on toolchain d073071d77ce0f93b4fd8cc567a1e2b9e1b22126
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yqmmm/git-rust
[INFO] finished tweaking git repo https://github.com/yqmmm/git-rust
[INFO] tweaked toml for git repo https://github.com/yqmmm/git-rust written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/yqmmm/git-rust 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" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 25034ccfe32b81b869aef3f2a81c65ce12246e838fd26ba4f28c252906a214d4
[INFO] running `Command { std: "docker" "start" "-a" "25034ccfe32b81b869aef3f2a81c65ce12246e838fd26ba4f28c252906a214d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25034ccfe32b81b869aef3f2a81c65ce12246e838fd26ba4f28c252906a214d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25034ccfe32b81b869aef3f2a81c65ce12246e838fd26ba4f28c252906a214d4", kill_on_drop: false }`
[INFO] [stdout] 25034ccfe32b81b869aef3f2a81c65ce12246e838fd26ba4f28c252906a214d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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 -Copt-level=3" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5fc80e0bcf1ee1e1fd40f5c91bb72f895769c924c468e80b828af15df7bac5ad
[INFO] running `Command { std: "docker" "start" "-a" "5fc80e0bcf1ee1e1fd40f5c91bb72f895769c924c468e80b828af15df7bac5ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling adler32 v1.0.4
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling textwrap v0.12.1
[INFO] [stderr]    Compiling block-padding v0.1.5
[INFO] [stderr]    Compiling miniz_oxide v0.3.6
[INFO] [stderr]    Compiling os_str_bytes v2.4.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling hex v0.3.2
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling flate2 v1.0.14
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling sha-1 v0.8.2
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]    Compiling clap v3.0.0-beta.2
[INFO] [stderr]    Compiling git-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::object`
[INFO] [stdout]   --> src/repo.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use super::object;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `BufReader`, `Read`
[INFO] [stdout]  --> src/object/mod.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{BufRead, BufReader, Read, Write};
[INFO] [stdout]   |               ^^^^^^^  ^^^^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `flate2::read::ZlibDecoder`
[INFO] [stdout]  --> src/object/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use flate2::read::ZlibDecoder;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/object/commit.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader`, `Read`, `SeekFrom`, `Seek`
[INFO] [stdout]  --> src/object/commit.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{BufRead, BufReader, Cursor, Read, Seek, SeekFrom};
[INFO] [stdout]   |                        ^^^^^^^^^          ^^^^  ^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `repo`
[INFO] [stdout]  --> src/object/blob.rs:9:27
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn new(data: Vec<u8>, repo: &GitRepository) -> Self {
[INFO] [stdout]   |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_repo`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `repo`
[INFO] [stdout]   --> src/object/tree.rs:35:27
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn new(data: Vec<u8>, repo: &GitRepository) -> Self {
[INFO] [stdout]    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_repo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `repo`
[INFO] [stdout]   --> src/object/commit.rs:20:27
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn new(data: Vec<u8>, repo: &GitRepository) -> Self {
[INFO] [stdout]    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_repo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `repo`
[INFO] [stdout]  --> src/object/tag.rs:9:27
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn new(data: Vec<u8>, repo: &GitRepository) -> Self {
[INFO] [stdout]   |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_repo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `worktree` is never read
[INFO] [stdout]   --> src/repo.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct GitRepository {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] 13 |     worktree: PathBuf,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `parent` is never read
[INFO] [stdout]   --> src/object/commit.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct GitCommit {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 16 |     parent: Option<Rc<Box<dyn GitObject>>>, // TODO: is Box in Rc the right thing to do?
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/object/tree.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |             reader.read_until(0x20, &mut mode);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 41 |             let _ = reader.read_until(0x20, &mut mode);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/object/tree.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |             reader.read_until(0, &mut filename);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 49 |             let _ = reader.read_until(0, &mut filename);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/object/tree.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |             reader.read_exact(&mut sha);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 54 |             let _ = reader.read_exact(&mut sha);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] LLVM ERROR: IO failure on output stream: No space left on device
[INFO] [stderr] error: could not compile `clap` (lib)
[INFO] running `Command { std: "docker" "inspect" "5fc80e0bcf1ee1e1fd40f5c91bb72f895769c924c468e80b828af15df7bac5ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fc80e0bcf1ee1e1fd40f5c91bb72f895769c924c468e80b828af15df7bac5ad", kill_on_drop: false }`
[INFO] [stdout] 5fc80e0bcf1ee1e1fd40f5c91bb72f895769c924c468e80b828af15df7bac5ad