[INFO] fetching crate flowistry 0.3.19...
[INFO] testing flowistry-0.3.19 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate flowistry 0.3.19 into /workspace/builds/worker-44/source
[INFO] validating manifest of crates.io crate flowistry 0.3.19 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-44/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate flowistry 0.3.19
[INFO] finished tweaking crates.io crate flowistry 0.3.19
[INFO] tweaked toml for crates.io crate flowistry 0.3.19 written to /workspace/builds/worker-44/source/Cargo.toml
[INFO] crate crates.io crate flowistry 0.3.19 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 116fbbec1e4ee13c069e85b58720326800661f8b1b93e2ad722a94b2e9f617c4
[INFO] running `Command { std: "docker" "start" "-a" "116fbbec1e4ee13c069e85b58720326800661f8b1b93e2ad722a94b2e9f617c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "116fbbec1e4ee13c069e85b58720326800661f8b1b93e2ad722a94b2e9f617c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "116fbbec1e4ee13c069e85b58720326800661f8b1b93e2ad722a94b2e9f617c4", kill_on_drop: false }`
[INFO] [stdout] 116fbbec1e4ee13c069e85b58720326800661f8b1b93e2ad722a94b2e9f617c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8fd6eba06f74cc0a14a1d1fbe73084c0001f48fdf587bf2457872508ab0917d5
[INFO] running `Command { std: "docker" "start" "-a" "8fd6eba06f74cc0a14a1d1fbe73084c0001f48fdf587bf2457872508ab0917d5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling camino v1.0.5
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling utf8-width v0.1.5
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling fluid-let v1.0.0
[INFO] [stderr]    Compiling html-escape v0.2.9
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling intervaltree v0.2.6
[INFO] [stderr]    Compiling env_logger v0.9.0
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling cargo-platform v0.1.2
[INFO] [stderr]    Compiling cargo_metadata v0.14.0
[INFO] [stderr]    Compiling flowistry v0.3.19 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `polonius_engine`
[INFO] [stdout]   --> src/lib.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | extern crate polonius_engine;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `flowistry` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "8fd6eba06f74cc0a14a1d1fbe73084c0001f48fdf587bf2457872508ab0917d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fd6eba06f74cc0a14a1d1fbe73084c0001f48fdf587bf2457872508ab0917d5", kill_on_drop: false }`
[INFO] [stdout] 8fd6eba06f74cc0a14a1d1fbe73084c0001f48fdf587bf2457872508ab0917d5