[INFO] cloning repository vain0x/competo
[INFO] running `"git" "clone" "--bare" "git://github.com/vain0x/competo.git" "work/cache/sources/gh/vain0x/competo"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/vain0x/competo'...
[INFO] running `"git" "clone" "work/cache/sources/gh/vain0x/competo" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/vain0x/competo"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/vain0x/competo'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/vain0x/competo" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/vain0x/competo"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/vain0x/competo'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2eabac9240c6105965d99e41f8ea0e2d5a59cbfc
[INFO] sha for GitHub repo vain0x/competo: 2eabac9240c6105965d99e41f8ea0e2d5a59cbfc
[INFO] validating manifest of vain0x/competo 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 vain0x/competo 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 vain0x/competo
[INFO] finished frobbing vain0x/competo
[INFO] frobbed toml for vain0x/competo written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/vain0x/competo/Cargo.toml
[INFO] started frobbing vain0x/competo
[INFO] finished frobbing vain0x/competo
[INFO] frobbed toml for vain0x/competo written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/vain0x/competo/Cargo.toml
[INFO] crate vain0x/competo 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]  Downloading crates ...
[INFO] [stderr]   Downloaded rustc-rayon v0.1.1
[INFO] [stderr]   Downloaded rustc-ap-syntax_pos v196.0.0
[INFO] [stderr]   Downloaded rustfmt-nightly v0.8.3
[INFO] [stderr]   Downloaded rustc-ap-arena v196.0.0
[INFO] [stderr]   Downloaded rustc-ap-serialize v196.0.0
[INFO] [stderr]   Downloaded cargo_metadata v0.6.0
[INFO] [stderr]   Downloaded rustc-rayon-core v0.1.1
[INFO] [stderr]   Downloaded rustc-ap-rustc_target v196.0.0
[INFO] [stderr]   Downloaded rustc-ap-syntax v196.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_errors v196.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_data_structures v196.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_cratesio_shim v196.0.0
[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 vain0x/competo against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-0/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/vain0x/competo:/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] b01bea22ccabc52517333f9caf75cd1a2a315c1282b4f48e938471ac38ae8d32
[INFO] running `"docker" "start" "-a" "b01bea22ccabc52517333f9caf75cd1a2a315c1282b4f48e938471ac38ae8d32"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rustc-rayon-core v0.1.1
[INFO] [stderr]     Checking smallvec v0.6.2
[INFO] [stderr]     Checking rustc-ap-serialize v196.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_target v196.0.0
[INFO] [stderr]     Checking scoped-tls v0.1.2
[INFO] [stderr]    Compiling rustc-ap-syntax v196.0.0
[INFO] [stderr]    Compiling rustfmt-nightly v0.8.3
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking isatty v0.1.8
[INFO] [stderr]     Checking rustc-hash v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.8
[INFO] [stderr]     Checking term v0.5.1
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking rustc-ap-rustc_cratesio_shim v196.0.0
[INFO] [stderr]     Checking ena v0.9.3
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking backtrace-sys v0.1.23
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking serde_json v1.0.24
[INFO] [stderr]     Checking toml v0.4.6
[INFO] [stderr]     Checking regex v1.0.1
[INFO] [stderr]     Checking quote v0.6.3
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking parking_lot v0.5.5
[INFO] [stderr]     Checking syn v0.14.4
[INFO] [stderr]     Checking error-chain v0.12.0
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking rustc-rayon v0.1.1
[INFO] [stderr]     Checking env_logger v0.5.10
[INFO] [stderr]     Checking rustc-ap-rustc_data_structures v196.0.0
[INFO] [stderr]     Checking rustc-ap-arena v196.0.0
[INFO] [stderr]     Checking rustc-ap-syntax_pos v196.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_errors v196.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.70
[INFO] [stderr]    Compiling derive-new v0.5.5
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-syntax-196.0.0/attr/mod.rs:659:64
[INFO] [stderr]     |
[INFO] [stderr] 659 |                 Token::Literal(token::Lit::Str_(Symbol::intern(&escaped)), None)
[INFO] [stderr]     |                                                                ^^^^^^^^ expected str, found struct `std::str::EscapeDefault`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&str`
[INFO] [stderr]                found type `&std::str::EscapeDefault<'_>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: Could not compile `rustc-ap-syntax`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "b01bea22ccabc52517333f9caf75cd1a2a315c1282b4f48e938471ac38ae8d32"`
[INFO] running `"docker" "rm" "-f" "b01bea22ccabc52517333f9caf75cd1a2a315c1282b4f48e938471ac38ae8d32"`
[INFO] [stdout] b01bea22ccabc52517333f9caf75cd1a2a315c1282b4f48e938471ac38ae8d32