[INFO] fetching crate racer 2.1.38...
[INFO] checking racer-2.1.38 against master#a874956d940ecb3ed524b6176a171219ac4787ea for pr-76104
[INFO] extracting crate racer 2.1.38 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate racer 2.1.38 on toolchain a874956d940ecb3ed524b6176a171219ac4787ea
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate racer 2.1.38
[INFO] finished tweaking crates.io crate racer 2.1.38
[INFO] tweaked toml for crates.io crate racer 2.1.38 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate racer 2.1.38 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b3cbb7615a7db88d3156b7da96ca611034fb551ff39be20076151f70ed3fe975
[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" "b3cbb7615a7db88d3156b7da96ca611034fb551ff39be20076151f70ed3fe975", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3cbb7615a7db88d3156b7da96ca611034fb551ff39be20076151f70ed3fe975", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3cbb7615a7db88d3156b7da96ca611034fb551ff39be20076151f70ed3fe975", kill_on_drop: false }`
[INFO] [stdout] b3cbb7615a7db88d3156b7da96ca611034fb551ff39be20076151f70ed3fe975
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad0490f4d177af35bb7d0c528d8fa26d5eca12b60dd8bba319c4f5b7001472a5
[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" "ad0490f4d177af35bb7d0c528d8fa26d5eca12b60dd8bba319c4f5b7001472a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]     Checking smallvec v1.2.0
[INFO] [stderr]    Compiling cc v1.0.53
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_graphviz v671.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_graphviz v677.0.0
[INFO] [stderr]    Compiling serde v1.0.105
[INFO] [stderr]     Checking annotate-snippets v0.8.0
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking rustc-ap-rustc_fs_util v677.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_fs_util v671.0.0
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]     Checking humantime v2.0.0
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling indexmap v1.5.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking tracing-core v0.1.15
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking rustc-ap-rustc_lexer v671.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_lexer v677.0.0
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking ena v0.14.0
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling psm v0.1.8
[INFO] [stderr]    Compiling stacker v0.1.11
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking jobserver v0.1.21
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking termize v0.1.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rustc-ap-rustc_serialize v677.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_serialize v671.0.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rustc-rayon-core v0.3.0
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]     Checking measureme v0.7.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking rustc-rayon v0.3.0
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking md-5 v0.8.0
[INFO] [stderr]     Checking regex v1.3.6
[INFO] [stderr]     Checking rustc-ap-rustc_index v671.0.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking rustc-ap-rustc_data_structures v671.0.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking rustc-ap-rustc_arena v671.0.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling rustc-ap-rustc_macros v677.0.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling rustc-ap-rustc_macros v671.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.105
[INFO] [stderr]    Compiling derive_more v0.99.5
[INFO] [stderr]     Checking rustc-ap-rustc_span v671.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_index v677.0.0
[INFO] [stderr]     Checking tracing v0.1.19
[INFO] [stderr]     Checking rustc-ap-rustc_data_structures v677.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_arena v677.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_target v671.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_ast v671.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_errors v671.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_feature v671.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_span v677.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_ast v677.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_target v677.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_errors v677.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_feature v677.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_ast_pretty v671.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_session v671.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_parse v671.0.0
[INFO] [stderr]     Checking racer-interner v0.1.0
[INFO] [stderr]     Checking serde_json v1.0.50
[INFO] [stderr]     Checking rls-span v0.5.2
[INFO] [stderr]     Checking rustc-ap-rustc_ast_pretty v677.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_session v677.0.0
[INFO] [stderr]     Checking racer-cargo-metadata v0.1.1
[INFO] [stderr]     Checking rustc-ap-rustc_parse v677.0.0
[INFO] [stderr]     Checking racer v2.1.37
[INFO] [stderr]     Checking racer v2.1.38 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking racer-testutils v0.1.0
[INFO] [stdout] error[E0061]: this function takes 2 arguments but 1 argument was supplied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/racer-testutils-0.1.0/src/lib.rs:191:19
[INFO] [stdout]     |
[INFO] [stdout] 191 |     let session = racer::Session::new(&cache);
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^ ------ supplied 1 argument
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   expected 2 arguments
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 2 arguments but 1 argument was supplied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/racer-testutils-0.1.0/src/lib.rs:219:19
[INFO] [stdout]     |
[INFO] [stdout] 219 |     let session = racer::Session::new(&cache);
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^ ------ supplied 1 argument
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   expected 2 arguments
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0061`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `racer-testutils`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "ad0490f4d177af35bb7d0c528d8fa26d5eca12b60dd8bba319c4f5b7001472a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad0490f4d177af35bb7d0c528d8fa26d5eca12b60dd8bba319c4f5b7001472a5", kill_on_drop: false }`
[INFO] [stdout] ad0490f4d177af35bb7d0c528d8fa26d5eca12b60dd8bba319c4f5b7001472a5