[INFO] fetching crate mini-v8 0.3.0...
[INFO] checking mini-v8-0.3.0 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate mini-v8 0.3.0 into /workspace/builds/worker-69/source
[INFO] validating manifest of crates.io crate mini-v8 0.3.0 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mini-v8 0.3.0
[INFO] finished tweaking crates.io crate mini-v8 0.3.0
[INFO] tweaked toml for crates.io crate mini-v8 0.3.0 written to /workspace/builds/worker-69/source/Cargo.toml
[INFO] crate crates.io crate mini-v8 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "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-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b8f3c95a2e3d225e32599d76f47efc3ddc6cf0fec90a3d1ee2086e5e8c28b10f
[INFO] running `Command { std: "docker" "start" "-a" "b8f3c95a2e3d225e32599d76f47efc3ddc6cf0fec90a3d1ee2086e5e8c28b10f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8f3c95a2e3d225e32599d76f47efc3ddc6cf0fec90a3d1ee2086e5e8c28b10f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8f3c95a2e3d225e32599d76f47efc3ddc6cf0fec90a3d1ee2086e5e8c28b10f", kill_on_drop: false }`
[INFO] [stdout] b8f3c95a2e3d225e32599d76f47efc3ddc6cf0fec90a3d1ee2086e5e8c28b10f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20b5c381e7e81aa52469fbbd61284d387d5facb7a14b8fe86f9897ea1fae15d2
[INFO] running `Command { std: "docker" "start" "-a" "20b5c381e7e81aa52469fbbd61284d387d5facb7a14b8fe86f9897ea1fae15d2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling cc v1.0.57
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking utf8parse v0.1.1
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]    Compiling mini-v8 v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: environment variable `V8_PATH` not defined
[INFO] [stdout]  --> build.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let v8 = env!("V8_PATH");
[INFO] [stdout]   |              ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the macro `env` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mini-v8` 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" "20b5c381e7e81aa52469fbbd61284d387d5facb7a14b8fe86f9897ea1fae15d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20b5c381e7e81aa52469fbbd61284d387d5facb7a14b8fe86f9897ea1fae15d2", kill_on_drop: false }`
[INFO] [stdout] 20b5c381e7e81aa52469fbbd61284d387d5facb7a14b8fe86f9897ea1fae15d2