[INFO] fetching crate supergit 0.1.0...
[INFO] checking supergit-0.1.0 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] extracting crate supergit 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate supergit 0.1.0 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 crates.io crate supergit 0.1.0
[INFO] finished tweaking crates.io crate supergit 0.1.0
[INFO] tweaked toml for crates.io crate supergit 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate supergit 0.1.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 64f2f7a54f64c66b4da4eb20d8d919d730820d97a1a94b1b50a768eb5c9865eb
[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" "64f2f7a54f64c66b4da4eb20d8d919d730820d97a1a94b1b50a768eb5c9865eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64f2f7a54f64c66b4da4eb20d8d919d730820d97a1a94b1b50a768eb5c9865eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64f2f7a54f64c66b4da4eb20d8d919d730820d97a1a94b1b50a768eb5c9865eb", kill_on_drop: false }`
[INFO] [stdout] 64f2f7a54f64c66b4da4eb20d8d919d730820d97a1a94b1b50a768eb5c9865eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 6e8b13e8ad93f00d5e605f595f1baeee2c75d5f1e38074863aeb2e94fa5e5165
[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" "6e8b13e8ad93f00d5e605f595f1baeee2c75d5f1e38074863aeb2e94fa5e5165", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking futures-core v0.3.8
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking fastrand v1.4.0
[INFO] [stderr]     Checking pin-project-lite v0.1.11
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]    Compiling const_fn v0.4.3
[INFO] [stderr]     Checking tinyvec v0.3.4
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking atomptr v1.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking form_urlencoded v1.0.0
[INFO] [stderr]     Checking async-channel v1.5.1
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking futures-lite v1.11.2
[INFO] [stderr]     Checking nb-connect v1.0.2
[INFO] [stderr]     Checking polling v2.0.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]     Checking async-io v1.2.0
[INFO] [stderr]     Checking async-executor v1.3.0
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]    Compiling cc v1.0.62
[INFO] [stderr]     Checking async-global-executor v1.4.3
[INFO] [stderr]     Checking url v2.2.0
[INFO] [stderr]     Checking async-std v1.7.0
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling libssh2-sys v0.2.19
[INFO] [stderr]    Compiling libgit2-sys v0.10.0
[INFO] [stderr]     Checking git2 v0.11.0
[INFO] [stderr]     Checking supergit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `BranchCommit`
[INFO] [stdout]  --> src/repo.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{Branch, BranchCommit};
[INFO] [stdout]   |                     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BranchIter`, `Branch`, `Commit`
[INFO] [stdout]  --> src/files.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{Branch, BranchIter, Commit, HashId};
[INFO] [stdout]   |             ^^^^^^  ^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `RwLock`
[INFO] [stdout]   --> src/lib.rs:34:23
[INFO] [stdout]    |
[INFO] [stdout] 34 | use async_std::sync::{Arc, RwLock};
[INFO] [stdout]    |                       ^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AtomicUsize`, `Ordering`
[INFO] [stdout]   --> src/lib.rs:35:25
[INFO] [stdout]    |
[INFO] [stdout] 35 | use std::sync::atomic::{AtomicUsize, Ordering};
[INFO] [stdout]    |                         ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BranchCommit`
[INFO] [stdout]  --> src/repo.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{Branch, BranchCommit};
[INFO] [stdout]   |                     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BranchIter`, `Branch`, `Commit`
[INFO] [stdout]  --> src/files.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{Branch, BranchIter, Commit, HashId};
[INFO] [stdout]   |             ^^^^^^  ^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `RwLock`
[INFO] [stdout]   --> src/lib.rs:34:23
[INFO] [stdout]    |
[INFO] [stdout] 34 | use async_std::sync::{Arc, RwLock};
[INFO] [stdout]    |                       ^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AtomicUsize`, `Ordering`
[INFO] [stdout]   --> src/lib.rs:35:25
[INFO] [stdout]    |
[INFO] [stdout] 35 | use std::sync::atomic::{AtomicUsize, Ordering};
[INFO] [stdout]    |                         ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/files.rs:121:24
[INFO] [stdout]     |
[INFO] [stdout] 121 |             Self::File(ref f) => repo
[INFO] [stdout]     |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `d`
[INFO] [stdout]    --> src/files.rs:125:23
[INFO] [stdout]     |
[INFO] [stdout] 125 |             Self::Dir(ref d) => repo
[INFO] [stdout]     |                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `repo`
[INFO] [stdout]    --> src/files.rs:206:25
[INFO] [stdout]     |
[INFO] [stdout] 206 |     fn enumerate(&self, repo: git2::Repository) -> Vec<String> {
[INFO] [stdout]     |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_repo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/files.rs:121:24
[INFO] [stdout]     |
[INFO] [stdout] 121 |             Self::File(ref f) => repo
[INFO] [stdout]     |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `d`
[INFO] [stdout]    --> src/files.rs:125:23
[INFO] [stdout]     |
[INFO] [stdout] 125 |             Self::Dir(ref d) => repo
[INFO] [stdout]     |                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `repo`
[INFO] [stdout]    --> src/files.rs:206:25
[INFO] [stdout]     |
[INFO] [stdout] 206 |     fn enumerate(&self, repo: git2::Repository) -> Vec<String> {
[INFO] [stdout]     |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_repo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_file`
[INFO] [stdout]    --> src/files.rs:153:8
[INFO] [stdout]     |
[INFO] [stdout] 153 |     fn is_file(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `enumerate`
[INFO] [stdout]    --> src/files.rs:206:8
[INFO] [stdout]     |
[INFO] [stdout] 206 |     fn enumerate(&self, repo: git2::Repository) -> Vec<String> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_file`
[INFO] [stdout]    --> src/files.rs:153:8
[INFO] [stdout]     |
[INFO] [stdout] 153 |     fn is_file(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `enumerate`
[INFO] [stdout]    --> src/files.rs:206:8
[INFO] [stdout]     |
[INFO] [stdout] 206 |     fn enumerate(&self, repo: git2::Repository) -> Vec<String> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/files.rs:133:21
[INFO] [stdout]     |
[INFO] [stdout] 133 | /                     tree.walk(TreeWalkMode::PreOrder, |p, entry| {
[INFO] [stdout] 134 | |                         let path_segs: Vec<_> = p.split("/").filter(|s| s != &"").collect();
[INFO] [stdout] 135 | |                         if path_segs.len() > 0 {
[INFO] [stdout] 136 | |                             TreeWalkResult::Skip
[INFO] [stdout] ...   |
[INFO] [stdout] 144 | |                         }
[INFO] [stdout] 145 | |                     });
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/files.rs:133:21
[INFO] [stdout]     |
[INFO] [stdout] 133 | /                     tree.walk(TreeWalkMode::PreOrder, |p, entry| {
[INFO] [stdout] 134 | |                         let path_segs: Vec<_> = p.split("/").filter(|s| s != &"").collect();
[INFO] [stdout] 135 | |                         if path_segs.len() > 0 {
[INFO] [stdout] 136 | |                             TreeWalkResult::Skip
[INFO] [stdout] ...   |
[INFO] [stdout] 144 | |                         }
[INFO] [stdout] 145 | |                     });
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::mpsc::channel`
[INFO] [stdout]  --> src/bin/test.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::sync::mpsc::channel;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BranchCommit`
[INFO] [stdout]  --> src/bin/test.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use supergit::{BranchCommit, Repository};
[INFO] [stdout]   |                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::mpsc::channel`
[INFO] [stdout]  --> src/bin/test.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::sync::mpsc::channel;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BranchCommit`
[INFO] [stdout]  --> src/bin/test.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use supergit::{BranchCommit, Repository};
[INFO] [stdout]   |                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.28s
[INFO] running `Command { std: "docker" "inspect" "6e8b13e8ad93f00d5e605f595f1baeee2c75d5f1e38074863aeb2e94fa5e5165", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e8b13e8ad93f00d5e605f595f1baeee2c75d5f1e38074863aeb2e94fa5e5165", kill_on_drop: false }`
[INFO] [stdout] 6e8b13e8ad93f00d5e605f595f1baeee2c75d5f1e38074863aeb2e94fa5e5165