[INFO] fetching crate gitdb 0.1.1...
[INFO] testing gitdb-0.1.1 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate gitdb 0.1.1 into /workspace/builds/worker-67/source
[INFO] validating manifest of crates.io crate gitdb 0.1.1 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gitdb 0.1.1
[INFO] finished tweaking crates.io crate gitdb 0.1.1
[INFO] tweaked toml for crates.io crate gitdb 0.1.1 written to /workspace/builds/worker-67/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded data-encoding v2.3.2
[INFO] [stderr]   Downloaded git2 v0.6.11
[INFO] [stderr]   Downloaded libgit2-sys v0.6.19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2a467c8b08d56e05b29fbc8fcc3e6205bc6f179205ca698c3e61e9ff0f9b1999
[INFO] running `Command { std: "docker" "start" "-a" "2a467c8b08d56e05b29fbc8fcc3e6205bc6f179205ca698c3e61e9ff0f9b1999", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a467c8b08d56e05b29fbc8fcc3e6205bc6f179205ca698c3e61e9ff0f9b1999", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a467c8b08d56e05b29fbc8fcc3e6205bc6f179205ca698c3e61e9ff0f9b1999", kill_on_drop: false }`
[INFO] [stdout] 2a467c8b08d56e05b29fbc8fcc3e6205bc6f179205ca698c3e61e9ff0f9b1999
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5b958615c0cde106cb1d297f2fd3ce27d20ca803301a46461fbe47397df3ed1
[INFO] running `Command { std: "docker" "start" "-a" "d5b958615c0cde106cb1d297f2fd3ce27d20ca803301a46461fbe47397df3ed1", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling pkg-config v0.3.22
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling unicode-bidi v0.3.7
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling matches v0.1.9
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling untrusted v0.6.2
[INFO] [stderr]    Compiling openssl-probe v0.1.4
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling data-encoding v2.3.2
[INFO] [stderr]    Compiling tinyvec v1.5.1
[INFO] [stderr]    Compiling cmake v0.1.46
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling openssl-sys v0.9.71
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling libssh2-sys v0.2.23
[INFO] [stderr]    Compiling curl-sys v0.4.51+curl-7.80.0
[INFO] [stderr]    Compiling libgit2-sys v0.6.19
[INFO] [stderr]    Compiling ring v0.13.5
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling git2 v0.6.11
[INFO] [stderr]    Compiling gitdb v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `obscure_input`
[INFO] [stdout]    --> src/crypto.rs:203:33
[INFO] [stdout]     |
[INFO] [stdout] 203 | pub fn read_stdin(prompt: &str, obscure_input: bool) -> Result<String, String> {
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_obscure_input`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/git_db.rs:365:9
[INFO] [stdout]     |
[INFO] [stdout] 365 | /         &self.repo.checkout_head(None)
[INFO] [stdout] 366 | |             .map_err(|e| format!("Failed to checkout head: {:?}", e))?;
[INFO] [stdout]     | |______________________________________________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 365 |         let _ = &self.repo.checkout_head(None)
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 58.66s
[INFO] running `Command { std: "docker" "inspect" "d5b958615c0cde106cb1d297f2fd3ce27d20ca803301a46461fbe47397df3ed1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5b958615c0cde106cb1d297f2fd3ce27d20ca803301a46461fbe47397df3ed1", kill_on_drop: false }`
[INFO] [stdout] d5b958615c0cde106cb1d297f2fd3ce27d20ca803301a46461fbe47397df3ed1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0734dc44fb57177ecb63086412c6ca47cc93d75a79bb38b7a3302de9db22fb6
[INFO] running `Command { std: "docker" "start" "-a" "a0734dc44fb57177ecb63086412c6ca47cc93d75a79bb38b7a3302de9db22fb6", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `obscure_input`
[INFO] [stdout]    --> src/crypto.rs:203:33
[INFO] [stdout]     |
[INFO] [stdout] 203 | pub fn read_stdin(prompt: &str, obscure_input: bool) -> Result<String, String> {
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_obscure_input`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling gitdb v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/git_db.rs:365:9
[INFO] [stdout]     |
[INFO] [stdout] 365 | /         &self.repo.checkout_head(None)
[INFO] [stdout] 366 | |             .map_err(|e| format!("Failed to checkout head: {:?}", e))?;
[INFO] [stdout]     | |______________________________________________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 365 |         let _ = &self.repo.checkout_head(None)
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `obscure_input`
[INFO] [stdout]    --> src/crypto.rs:203:33
[INFO] [stdout]     |
[INFO] [stdout] 203 | pub fn read_stdin(prompt: &str, obscure_input: bool) -> Result<String, String> {
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_obscure_input`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/git_db.rs:365:9
[INFO] [stdout]     |
[INFO] [stdout] 365 | /         &self.repo.checkout_head(None)
[INFO] [stdout] 366 | |             .map_err(|e| format!("Failed to checkout head: {:?}", e))?;
[INFO] [stdout]     | |______________________________________________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 365 |         let _ = &self.repo.checkout_head(None)
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "a0734dc44fb57177ecb63086412c6ca47cc93d75a79bb38b7a3302de9db22fb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0734dc44fb57177ecb63086412c6ca47cc93d75a79bb38b7a3302de9db22fb6", kill_on_drop: false }`
[INFO] [stdout] a0734dc44fb57177ecb63086412c6ca47cc93d75a79bb38b7a3302de9db22fb6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d9e944f29a1defcf8e3c86976566ee2603f5a8bdcfcf5c35098438d26783bede
[INFO] running `Command { std: "docker" "start" "-a" "d9e944f29a1defcf8e3c86976566ee2603f5a8bdcfcf5c35098438d26783bede", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `obscure_input`
[INFO] [stderr]    --> src/crypto.rs:203:33
[INFO] [stderr]     |
[INFO] [stderr] 203 | pub fn read_stdin(prompt: &str, obscure_input: bool) -> Result<String, String> {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_obscure_input`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/git_db.rs:365:9
[INFO] [stderr]     |
[INFO] [stderr] 365 | /         &self.repo.checkout_head(None)
[INFO] [stderr] 366 | |             .map_err(|e| format!("Failed to checkout head: {:?}", e))?;
[INFO] [stderr]     | |______________________________________________________________________^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 365 |         let _ = &self.repo.checkout_head(None)
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `gitdb` (lib) generated 2 warnings
[INFO] [stderr] warning: `gitdb` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.93s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/gitdb-883f25305d4b3544)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests gitdb
[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" "d9e944f29a1defcf8e3c86976566ee2603f5a8bdcfcf5c35098438d26783bede", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9e944f29a1defcf8e3c86976566ee2603f5a8bdcfcf5c35098438d26783bede", kill_on_drop: false }`
[INFO] [stdout] d9e944f29a1defcf8e3c86976566ee2603f5a8bdcfcf5c35098438d26783bede