[INFO] cloning repository https://github.com/racer-rust/racer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/racer-rust/racer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fracer-rust%2Fracer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fracer-rust%2Fracer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 48ed93d31dc0beea6fc7185e8496faa7fa9ded5c
[INFO] checking racer-rust/racer against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fracer-rust%2Fracer" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/racer-rust/racer on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/racer-rust/racer
[INFO] finished tweaking git repo https://github.com/racer-rust/racer
[INFO] tweaked toml for git repo https://github.com/racer-rust/racer written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/racer-rust/racer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustc-ap-rustc_arena v722.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_lexer v722.0.0
[INFO] [stderr]   Downloaded arrayvec v0.7.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_session v722.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_errors v722.0.0
[INFO] [stderr]   Downloaded rustc-rayon-core v0.3.1
[INFO] [stderr]   Downloaded rustc-rayon v0.3.1
[INFO] [stderr]   Downloaded memmap2 v0.2.2
[INFO] [stderr]   Downloaded derive_more v0.99.5
[INFO] [stderr]   Downloaded termize v0.1.1
[INFO] [stderr]   Downloaded rustc-ap-rustc_fs_util v722.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_ast v722.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_feature v722.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_parse v722.0.0
[INFO] [stderr]   Downloaded rls-span v0.5.2
[INFO] [stderr]   Downloaded humantime v2.0.0
[INFO] [stderr]   Downloaded annotate-snippets v0.8.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_macros v722.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_data_structures v722.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_index v722.0.0
[INFO] [stderr]   Downloaded indexmap v1.5.2
[INFO] [stderr]   Downloaded getopts v0.2.21
[INFO] [stderr]   Downloaded rustc-ap-rustc_ast_pretty v722.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_target v722.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_serialize v722.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_lint_defs v722.0.0
[INFO] [stderr]   Downloaded measureme v9.1.0
[INFO] [stderr]   Downloaded perf-event-open-sys v1.0.1
[INFO] [stderr]   Downloaded rustc-ap-rustc_graphviz v722.0.0
[INFO] [stderr]   Downloaded hermit-abi v0.1.10
[INFO] [stderr]   Downloaded psm v0.1.8
[INFO] [stderr]   Downloaded rustc-ap-rustc_span v722.0.0
[INFO] [stderr]   Downloaded stacker v0.1.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fab029e908dfc2fed5baa2f0a971603e8bdd4e95cca481a6f4c98dfaf4653777
[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" "fab029e908dfc2fed5baa2f0a971603e8bdd4e95cca481a6f4c98dfaf4653777", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fab029e908dfc2fed5baa2f0a971603e8bdd4e95cca481a6f4c98dfaf4653777", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fab029e908dfc2fed5baa2f0a971603e8bdd4e95cca481a6f4c98dfaf4653777", kill_on_drop: false }`
[INFO] [stdout] fab029e908dfc2fed5baa2f0a971603e8bdd4e95cca481a6f4c98dfaf4653777
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49d22418ed31b16abb309f8116b8f1f1261455bc2488aba342c118f170de6ec2
[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" "49d22418ed31b16abb309f8116b8f1f1261455bc2488aba342c118f170de6ec2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling cc v1.0.53
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking arrayvec v0.7.0
[INFO] [stderr]     Checking rustc-ap-rustc_graphviz v722.0.0
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking rustc-ap-rustc_fs_util v722.0.0
[INFO] [stderr]     Checking humantime v2.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling indexmap v1.5.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.4
[INFO] [stderr]     Checking instant v0.1.7
[INFO] [stderr]     Checking tracing-core v0.1.15
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]    Compiling rustc-rayon-core v0.3.1
[INFO] [stderr]     Checking rustc-ap-rustc_lexer v722.0.0
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking perf-event-open-sys v1.0.1
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking jobserver v0.1.21
[INFO] [stderr]     Checking memmap2 v0.2.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking termize v0.1.1
[INFO] [stderr]     Checking generic-array v0.14.4
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking ena v0.14.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking sha2 v0.9.2
[INFO] [stderr]     Checking sha-1 v0.9.2
[INFO] [stderr]     Checking md-5 v0.9.1
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking measureme v9.1.0
[INFO] [stderr]    Compiling psm v0.1.8
[INFO] [stderr]    Compiling stacker v0.1.12
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking regex v1.3.6
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking rustc-ap-rustc_serialize v722.0.0
[INFO] [stderr]     Checking rustc-rayon v0.3.1
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling rustc-ap-rustc_macros v722.0.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling serde_derive v1.0.105
[INFO] [stderr]    Compiling derive_more v0.99.5
[INFO] [stderr]     Checking tracing v0.1.19
[INFO] [stderr]     Checking rustc-ap-rustc_index v722.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_data_structures v722.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_arena v722.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_span v722.0.0
[INFO] [stderr]     Checking serde v1.0.105
[INFO] [stderr]     Checking rustc-ap-rustc_ast v722.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_target v722.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_feature v722.0.0
[INFO] [stderr]     Checking serde_json v1.0.50
[INFO] [stderr]     Checking racer-interner v0.1.0 (/opt/rustwide/workdir/interner)
[INFO] [stderr]     Checking rls-span v0.5.2
[INFO] [stderr]     Checking racer-cargo-metadata v0.1.2 (/opt/rustwide/workdir/metadata)
[INFO] [stderr]     Checking rustc-ap-rustc_lint_defs v722.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_ast_pretty v722.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_errors v722.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_session v722.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_parse v722.0.0
[INFO] [stderr]     Checking racer v2.1.48 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking racer-testutils v0.1.0 (/opt/rustwide/workdir/testutils)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 27s
[INFO] running `Command { std: "docker" "inspect" "49d22418ed31b16abb309f8116b8f1f1261455bc2488aba342c118f170de6ec2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49d22418ed31b16abb309f8116b8f1f1261455bc2488aba342c118f170de6ec2", kill_on_drop: false }`
[INFO] [stdout] 49d22418ed31b16abb309f8116b8f1f1261455bc2488aba342c118f170de6ec2