[INFO] cloning repository racer-rust/racer
[INFO] running `"git" "clone" "--bare" "git://github.com/racer-rust/racer.git" "work/cache/sources/gh/racer-rust/racer"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/racer-rust/racer'...
[INFO] running `"git" "clone" "work/cache/sources/gh/racer-rust/racer" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/racer-rust/racer"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/racer-rust/racer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/racer-rust/racer" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/racer-rust/racer"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/racer-rust/racer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9cf8f2909e41c1894e492a3e1d3823328d7c798e
[INFO] sha for GitHub repo racer-rust/racer: 9cf8f2909e41c1894e492a3e1d3823328d7c798e
[INFO] validating manifest of racer-rust/racer on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of racer-rust/racer on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing racer-rust/racer
[INFO] removed workspace from racer-rust/racer
[INFO] removed path dependency racer-cargo-metadata from racer-rust/racer
[INFO] removed path dependency racer-testutils from racer-rust/racer
[INFO] finished frobbing racer-rust/racer
[INFO] frobbed toml for racer-rust/racer written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/racer-rust/racer/Cargo.toml
[INFO] started frobbing racer-rust/racer
[INFO] removed workspace from racer-rust/racer
[INFO] removed path dependency racer-cargo-metadata from racer-rust/racer
[INFO] removed path dependency racer-testutils from racer-rust/racer
[INFO] finished frobbing racer-rust/racer
[INFO] frobbed toml for racer-rust/racer written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/racer-rust/racer/Cargo.toml
[INFO] crate racer-rust/racer already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/racer-rust/racer/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rls-span v0.5.1
[INFO] [stderr]   Downloaded racer-cargo-metadata v0.1.1
[INFO] [stderr]   Downloaded racer-testutils v0.1.0
[INFO] [stderr]   Downloaded racer-interner v0.1.0
[INFO] [stderr]   Downloaded racer v2.1.23
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking racer-rust/racer against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-2/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/racer-rust/racer:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 81b1b3a8f1e9ab2ce11de92cd3c839b550a48ef3e27f30cd0ee158b5378c5f86
[INFO] running `"docker" "start" "-a" "81b1b3a8f1e9ab2ce11de92cd3c839b550a48ef3e27f30cd0ee158b5378c5f86"`
[INFO] [stderr]    Compiling rustc-rayon-core v0.2.0
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]    Compiling rustc-rayon v0.2.0
[INFO] [stderr]     Checking rustc-ap-graphviz v491.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_target v491.0.0
[INFO] [stderr]     Checking annotate-snippets v0.5.0
[INFO] [stderr]    Compiling rustc-ap-syntax v491.0.0
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]     Checking ena v0.13.0
[INFO] [stderr]     Checking rustc-ap-rustc_cratesio_shim v491.0.0
[INFO] [stderr]     Checking rustc-ap-serialize v491.0.0
[INFO] [stderr]    Compiling derive_more v0.13.0
[INFO] [stderr]    Compiling rustc-ap-rustc_macros v491.0.0
[INFO] [stderr]     Checking serde v1.0.94
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking rustc-ap-rustc_data_structures v491.0.0
[INFO] [stderr]     Checking rustc-ap-arena v491.0.0
[INFO] [stderr]     Checking rustc-ap-syntax_pos v491.0.0
[INFO] [stderr]     Checking racer-interner v0.1.0
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking rls-span v0.5.1
[INFO] [stderr]     Checking rustc-ap-rustc_errors v491.0.0
[INFO] [stderr]     Checking racer-cargo-metadata v0.1.1
[INFO] [stderr]     Checking racer v2.1.23
[INFO] [stderr]     Checking racer v2.1.23 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `syntax`
[INFO] [stderr]   --> src/racer/lib.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use syntax;
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rls_span`
[INFO] [stderr]   --> src/racer/lib.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use rls_span;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Checking racer-testutils v0.1.0
[INFO] [stderr] error[E0061]: this function takes 2 parameters but 1 parameter was supplied
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/racer-testutils-0.1.0/src/lib.rs:191:19
[INFO] [stderr]     |
[INFO] [stderr] 191 |     let session = racer::Session::new(&cache);
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected 2 parameters
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 2 parameters but 1 parameter was supplied
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/racer-testutils-0.1.0/src/lib.rs:219:19
[INFO] [stderr]     |
[INFO] [stderr] 219 |     let session = racer::Session::new(&cache);
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected 2 parameters
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0061`.
[INFO] [stderr] error: Could not compile `racer-testutils`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "81b1b3a8f1e9ab2ce11de92cd3c839b550a48ef3e27f30cd0ee158b5378c5f86"`
[INFO] running `"docker" "rm" "-f" "81b1b3a8f1e9ab2ce11de92cd3c839b550a48ef3e27f30cd0ee158b5378c5f86"`
[INFO] [stdout] 81b1b3a8f1e9ab2ce11de92cd3c839b550a48ef3e27f30cd0ee158b5378c5f86