[INFO] cloning repository https://github.com/lissahyacinth/mutual_information
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lissahyacinth/mutual_information" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flissahyacinth%2Fmutual_information", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flissahyacinth%2Fmutual_information'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 89ea3cb35a468570ccf4b51e0498d6049c88592a
[INFO] checking lissahyacinth/mutual_information against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flissahyacinth%2Fmutual_information" "/workspace/builds/worker-78/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-78/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lissahyacinth/mutual_information on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lissahyacinth/mutual_information
[INFO] finished tweaking git repo https://github.com/lissahyacinth/mutual_information
[INFO] tweaked toml for git repo https://github.com/lissahyacinth/mutual_information written to /workspace/builds/worker-78/source/Cargo.toml
[INFO] crate git repo https://github.com/lissahyacinth/mutual_information already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "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-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a9b07d5f6e1cfd1a5447bc050b336365d4878a344e3e4251a822490479e10cd4
[INFO] running `Command { std: "docker" "start" "-a" "a9b07d5f6e1cfd1a5447bc050b336365d4878a344e3e4251a822490479e10cd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9b07d5f6e1cfd1a5447bc050b336365d4878a344e3e4251a822490479e10cd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9b07d5f6e1cfd1a5447bc050b336365d4878a344e3e4251a822490479e10cd4", kill_on_drop: false }`
[INFO] [stdout] a9b07d5f6e1cfd1a5447bc050b336365d4878a344e3e4251a822490479e10cd4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71c8c51e11a1ec324aaf647e69f80029eb9850be8cbd2fa75c27731df9d0aef1
[INFO] running `Command { std: "docker" "start" "-a" "71c8c51e11a1ec324aaf647e69f80029eb9850be8cbd2fa75c27731df9d0aef1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling pyo3-build-config v0.14.1
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling unindent v0.1.7
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling pyo3 v0.14.1
[INFO] [stderr]     Checking paste v0.1.18
[INFO] [stderr]    Compiling pyo3-macros-backend v0.14.1
[INFO] [stderr]    Compiling indoc-impl v0.3.6
[INFO] [stderr]    Compiling pyo3-macros v0.14.1
[INFO] [stderr]     Checking indoc v0.3.6
[INFO] [stderr]     Checking mutual_information v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `proptest`
[INFO] [stdout]    --> src/mutual_info.rs:126:9
[INFO] [stdout]     |
[INFO] [stdout] 126 |     use proptest::prelude::*;
[INFO] [stdout]     |         ^^^^^^^^ use of undeclared crate or module `proptest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `proptest` in this scope
[INFO] [stdout]    --> src/mutual_info.rs:129:9
[INFO] [stdout]     |
[INFO] [stdout] 129 |         proptest! {
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/mutual_info.rs:125:9
[INFO] [stdout]     |
[INFO] [stdout] 125 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mutual_information` due to 3 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "71c8c51e11a1ec324aaf647e69f80029eb9850be8cbd2fa75c27731df9d0aef1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71c8c51e11a1ec324aaf647e69f80029eb9850be8cbd2fa75c27731df9d0aef1", kill_on_drop: false }`
[INFO] [stdout] 71c8c51e11a1ec324aaf647e69f80029eb9850be8cbd2fa75c27731df9d0aef1