[INFO] cloning repository https://github.com/Bengreen/rusty-snakeskin
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Bengreen/rusty-snakeskin" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBengreen%2Frusty-snakeskin", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBengreen%2Frusty-snakeskin'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3ad2dde47405748a21d933284cb867bce516805f
[INFO] testing Bengreen/rusty-snakeskin against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBengreen%2Frusty-snakeskin" "/workspace/builds/worker-45/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-45/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Bengreen/rusty-snakeskin on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Bengreen/rusty-snakeskin
[INFO] finished tweaking git repo https://github.com/Bengreen/rusty-snakeskin
[INFO] tweaked toml for git repo https://github.com/Bengreen/rusty-snakeskin written to /workspace/builds/worker-45/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc63edd02950cc1cd7a0347116dbcdbe1c2da28fb9202e3e47361cbe6bd1419e
[INFO] running `Command { std: "docker" "start" "-a" "dc63edd02950cc1cd7a0347116dbcdbe1c2da28fb9202e3e47361cbe6bd1419e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc63edd02950cc1cd7a0347116dbcdbe1c2da28fb9202e3e47361cbe6bd1419e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc63edd02950cc1cd7a0347116dbcdbe1c2da28fb9202e3e47361cbe6bd1419e", kill_on_drop: false }`
[INFO] [stdout] dc63edd02950cc1cd7a0347116dbcdbe1c2da28fb9202e3e47361cbe6bd1419e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb72cb907d8d9713f01fbf8c9873eac6adfceaae798a9db32b6e82f2fe6e4670
[INFO] running `Command { std: "docker" "start" "-a" "fb72cb907d8d9713f01fbf8c9873eac6adfceaae798a9db32b6e82f2fe6e4670", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling pyo3-build-config v0.15.1
[INFO] [stderr]    Compiling pyo3-build-config v0.14.5
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling futures-core v0.3.18
[INFO] [stderr]    Compiling smallvec v1.7.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling futures-channel v0.3.18
[INFO] [stderr]    Compiling futures-task v0.3.18
[INFO] [stderr]    Compiling unindent v0.1.7
[INFO] [stderr]    Compiling futures-sink v0.3.18
[INFO] [stderr]    Compiling futures-util v0.3.18
[INFO] [stderr]    Compiling futures-io v0.3.18
[INFO] [stderr]    Compiling slab v0.4.5
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling inventory v0.1.11
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling rusty-snakeskin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr]    Compiling tokio v1.14.0
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling mio v0.7.14
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling pyo3 v0.15.1
[INFO] [stderr]    Compiling service_module v0.1.0 (/opt/rustwide/workdir/sharedmodule)
[INFO] [stderr]    Compiling pyo3 v0.14.5
[INFO] [stderr]    Compiling paste v0.1.18
[INFO] [stderr]    Compiling env_logger v0.9.0
[INFO] [stderr]    Compiling pyo3-macros-backend v0.15.1
[INFO] [stderr]    Compiling pyo3-macros-backend v0.14.5
[INFO] [stderr]    Compiling indoc-impl v0.3.6
[INFO] [stderr]    Compiling futures-macro v0.3.18
[INFO] [stderr]    Compiling tokio-macros v1.6.0
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling ctor v0.1.21
[INFO] [stderr]    Compiling inventory-impl v0.1.11
[INFO] [stderr]    Compiling pyo3-asyncio-macros v0.14.1
[INFO] [stderr]    Compiling pyo3-macros v0.14.5
[INFO] [stderr]    Compiling pyo3-macros v0.15.1
[INFO] [stderr]    Compiling indoc v0.3.6
[INFO] [stderr]    Compiling futures-executor v0.3.18
[INFO] [stderr]    Compiling futures v0.3.18
[INFO] [stderr]    Compiling pyo3-asyncio v0.14.1
[INFO] [stdout] error: empty search path given via `-L`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rusty-snakeskin` due to previous error
[INFO] running `Command { std: "docker" "inspect" "fb72cb907d8d9713f01fbf8c9873eac6adfceaae798a9db32b6e82f2fe6e4670", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb72cb907d8d9713f01fbf8c9873eac6adfceaae798a9db32b6e82f2fe6e4670", kill_on_drop: false }`
[INFO] [stdout] fb72cb907d8d9713f01fbf8c9873eac6adfceaae798a9db32b6e82f2fe6e4670