[INFO] cloning repository https://github.com/himanoa/diffhunk-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/himanoa/diffhunk-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhimanoa%2Fdiffhunk-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhimanoa%2Fdiffhunk-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 54e4030ce23581b4a311a219bf9fd64c1fd28103
[INFO] testing himanoa/diffhunk-playground against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhimanoa%2Fdiffhunk-playground" "/workspace/builds/worker-54/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-54/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/himanoa/diffhunk-playground on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/himanoa/diffhunk-playground
[INFO] finished tweaking git repo https://github.com/himanoa/diffhunk-playground
[INFO] tweaked toml for git repo https://github.com/himanoa/diffhunk-playground written to /workspace/builds/worker-54/source/Cargo.toml
[INFO] crate git repo https://github.com/himanoa/diffhunk-playground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48a8e223f5ed02f0f463e53bdf08b85f7037f9971dcbe8c7202166a2d97a7021
[INFO] running `Command { std: "docker" "start" "-a" "48a8e223f5ed02f0f463e53bdf08b85f7037f9971dcbe8c7202166a2d97a7021", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48a8e223f5ed02f0f463e53bdf08b85f7037f9971dcbe8c7202166a2d97a7021", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48a8e223f5ed02f0f463e53bdf08b85f7037f9971dcbe8c7202166a2d97a7021", kill_on_drop: false }`
[INFO] [stdout] 48a8e223f5ed02f0f463e53bdf08b85f7037f9971dcbe8c7202166a2d97a7021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 239f0a1f0beb48d5c9b13e398e2014494cb152d16a04e776ba6a373fb66b32a3
[INFO] running `Command { std: "docker" "start" "-a" "239f0a1f0beb48d5c9b13e398e2014494cb152d16a04e776ba6a373fb66b32a3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]    Compiling tinyvec v0.3.4
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling openssl-probe v0.1.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling unicode-normalization v0.1.13
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling cc v1.0.61
[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 v0.12.13+1.0.1
[INFO] [stderr]    Compiling url v2.1.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling git2 v0.13.11
[INFO] [stderr]    Compiling structopt-derive v0.4.12
[INFO] [stderr]    Compiling structopt v0.3.19
[INFO] [stderr]    Compiling diffhunk-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Blob`, `Error`
[INFO] [stdout]  --> src/main.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | use git2::{Repository, Blob, Error, BranchType, Oid, DiffHunk};
[INFO] [stdout]   |                        ^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 | /                 repo.diff_blobs(
[INFO] [stdout] 29 | |                     None,
[INFO] [stdout] 30 | |                     None,
[INFO] [stdout] 31 | |                     Some(&blob),
[INFO] [stdout] ...  |
[INFO] [stdout] 37 | |                     None
[INFO] [stdout] 38 | |                 );
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.39s
[INFO] running `Command { std: "docker" "inspect" "239f0a1f0beb48d5c9b13e398e2014494cb152d16a04e776ba6a373fb66b32a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "239f0a1f0beb48d5c9b13e398e2014494cb152d16a04e776ba6a373fb66b32a3", kill_on_drop: false }`
[INFO] [stdout] 239f0a1f0beb48d5c9b13e398e2014494cb152d16a04e776ba6a373fb66b32a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9e199048ccde5b817bcfe7b6e9b8af495b73ddeae0cf32602d3da5f3a3fd1e2
[INFO] running `Command { std: "docker" "start" "-a" "f9e199048ccde5b817bcfe7b6e9b8af495b73ddeae0cf32602d3da5f3a3fd1e2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling diffhunk-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Blob`, `Error`
[INFO] [stdout]  --> src/main.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | use git2::{Repository, Blob, Error, BranchType, Oid, DiffHunk};
[INFO] [stdout]   |                        ^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 | /                 repo.diff_blobs(
[INFO] [stdout] 29 | |                     None,
[INFO] [stdout] 30 | |                     None,
[INFO] [stdout] 31 | |                     Some(&blob),
[INFO] [stdout] ...  |
[INFO] [stdout] 37 | |                     None
[INFO] [stdout] 38 | |                 );
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 28.84s
[INFO] running `Command { std: "docker" "inspect" "f9e199048ccde5b817bcfe7b6e9b8af495b73ddeae0cf32602d3da5f3a3fd1e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9e199048ccde5b817bcfe7b6e9b8af495b73ddeae0cf32602d3da5f3a3fd1e2", kill_on_drop: false }`
[INFO] [stdout] f9e199048ccde5b817bcfe7b6e9b8af495b73ddeae0cf32602d3da5f3a3fd1e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] edf6077b2e79d10cd3628f4ba7736e98e58a202b0707ad9c22078cffcfa03a9c
[INFO] running `Command { std: "docker" "start" "-a" "edf6077b2e79d10cd3628f4ba7736e98e58a202b0707ad9c22078cffcfa03a9c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused imports: `Blob`, `Error`
[INFO] [stderr]  --> src/main.rs:2:24
[INFO] [stderr]   |
[INFO] [stderr] 2 | use git2::{Repository, Blob, Error, BranchType, Oid, DiffHunk};
[INFO] [stderr]   |                        ^^^^  ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/main.rs:28:17
[INFO] [stderr]    |
[INFO] [stderr] 28 | /                 repo.diff_blobs(
[INFO] [stderr] 29 | |                     None,
[INFO] [stderr] 30 | |                     None,
[INFO] [stderr] 31 | |                     Some(&blob),
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |                     None
[INFO] [stderr] 38 | |                 );
[INFO] [stderr]    | |__________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `diffhunk-playground` (bin "diffhunk-playground" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/diffhunk_playground-fdbe929587a75fa5)
[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" "edf6077b2e79d10cd3628f4ba7736e98e58a202b0707ad9c22078cffcfa03a9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edf6077b2e79d10cd3628f4ba7736e98e58a202b0707ad9c22078cffcfa03a9c", kill_on_drop: false }`
[INFO] [stdout] edf6077b2e79d10cd3628f4ba7736e98e58a202b0707ad9c22078cffcfa03a9c