[INFO] cloning repository https://github.com/BogdanFloris/add-gitignore
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BogdanFloris/add-gitignore" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBogdanFloris%2Fadd-gitignore", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBogdanFloris%2Fadd-gitignore'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 01e6967fbc95acca40ee4a3a131b93c31a7719fd
[INFO] checking BogdanFloris/add-gitignore against master#2e5723137b2b88368d018b262a0a823a1423131b for pr-78935-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBogdanFloris%2Fadd-gitignore" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BogdanFloris/add-gitignore on toolchain 2e5723137b2b88368d018b262a0a823a1423131b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2e5723137b2b88368d018b262a0a823a1423131b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/BogdanFloris/add-gitignore
[INFO] finished tweaking git repo https://github.com/BogdanFloris/add-gitignore
[INFO] tweaked toml for git repo https://github.com/BogdanFloris/add-gitignore written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/BogdanFloris/add-gitignore already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2e5723137b2b88368d018b262a0a823a1423131b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+2e5723137b2b88368d018b262a0a823a1423131b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 32021dc3d1c6933998ae2458bdb137ceaefdde479f1bdf6fc72c9ed401f66ece
[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" "32021dc3d1c6933998ae2458bdb137ceaefdde479f1bdf6fc72c9ed401f66ece", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "32021dc3d1c6933998ae2458bdb137ceaefdde479f1bdf6fc72c9ed401f66ece", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32021dc3d1c6933998ae2458bdb137ceaefdde479f1bdf6fc72c9ed401f66ece", kill_on_drop: false }`
[INFO] [stdout] 32021dc3d1c6933998ae2458bdb137ceaefdde479f1bdf6fc72c9ed401f66ece
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+2e5723137b2b88368d018b262a0a823a1423131b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b1ccba63abec54c605fae25fe35e6fd1a853e7a6794eb8ffa58de860a09309e
[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" "8b1ccba63abec54c605fae25fe35e6fd1a853e7a6794eb8ffa58de860a09309e", kill_on_drop: false }`
[INFO] [stderr]     Checking spin v0.5.0
[INFO] [stderr]    Compiling log v0.4.7
[INFO] [stderr]    Compiling syn v0.15.42
[INFO] [stderr]    Compiling serde v1.0.97
[INFO] [stderr]     Checking rustc-demangle v0.1.15
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]    Compiling miniz_oxide_c_api v0.2.3
[INFO] [stderr]     Checking try_from v0.3.2
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking termios v0.3.1
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]     Checking encoding_rs v0.8.17
[INFO] [stderr]     Checking miniz_oxide v0.3.0
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking getrandom v0.1.6
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking clicolors-control v1.0.0
[INFO] [stderr]     Checking openssl v0.10.24
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking regex v1.2.0
[INFO] [stderr]     Checking phf_shared v0.7.24
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]     Checking tokio-executor v0.1.8
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking tokio-current-thread v0.1.6
[INFO] [stderr]     Checking tokio-timer v0.2.11
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking backtrace v0.3.33
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking flate2 v1.0.9
[INFO] [stderr]     Checking tokio-threadpool v0.1.15
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking publicsuffix v1.5.2
[INFO] [stderr]     Checking console v0.7.7
[INFO] [stderr]     Checking console v0.8.0
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking dialoguer v0.4.0
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]     Checking native-tls v0.2.3
[INFO] [stderr]     Checking hyper v0.12.33
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.97
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking reqwest v0.9.19
[INFO] [stderr]     Checking add-gitignore v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 29s
[INFO] running `Command { std: "docker" "inspect" "8b1ccba63abec54c605fae25fe35e6fd1a853e7a6794eb8ffa58de860a09309e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b1ccba63abec54c605fae25fe35e6fd1a853e7a6794eb8ffa58de860a09309e", kill_on_drop: false }`
[INFO] [stdout] 8b1ccba63abec54c605fae25fe35e6fd1a853e7a6794eb8ffa58de860a09309e