[INFO] fetching crate grass-driver 0.1.4...
[INFO] testing grass-driver-0.1.4 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate grass-driver 0.1.4 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate grass-driver 0.1.4
[INFO] finished tweaking crates.io crate grass-driver 0.1.4
[INFO] tweaked toml for crates.io crate grass-driver 0.1.4 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate grass-driver 0.1.4 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate grass-driver 0.1.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustversion v1.0.6
[INFO] [stderr]   Downloaded mktemp v0.4.1
[INFO] [stderr]   Downloaded bswap v1.0.0
[INFO] [stderr]   Downloaded strum_macros v0.24.0
[INFO] [stderr]   Downloaded libc v0.2.121
[INFO] [stderr]   Downloaded file-lock v2.1.4
[INFO] [stderr]   Downloaded grass-ir v0.1.4
[INFO] [stderr]   Downloaded sha v1.0.3
[INFO] [stderr]   Downloaded syn v1.0.97
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 706e951e9804d7b35d09c50f497daf4a0e38f63522389b78087e89eba56e8082
[INFO] running `Command { std: "docker" "start" "-a" "706e951e9804d7b35d09c50f497daf4a0e38f63522389b78087e89eba56e8082", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "706e951e9804d7b35d09c50f497daf4a0e38f63522389b78087e89eba56e8082", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "706e951e9804d7b35d09c50f497daf4a0e38f63522389b78087e89eba56e8082", kill_on_drop: false }`
[INFO] [stdout] 706e951e9804d7b35d09c50f497daf4a0e38f63522389b78087e89eba56e8082
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d0c0e07e0b9b697c340349796e147c34704b8a9ee27d06dd38324ef88bb4b61
[INFO] running `Command { std: "docker" "start" "-a" "6d0c0e07e0b9b697c340349796e147c34704b8a9ee27d06dd38324ef88bb4b61", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling syn v1.0.97
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling rustversion v1.0.6
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]    Compiling regex-syntax v0.6.26
[INFO] [stderr]    Compiling ryu v1.0.10
[INFO] [stderr]    Compiling bswap v1.0.0
[INFO] [stderr]    Compiling itoa v1.0.2
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling fastrand v1.7.0
[INFO] [stderr]    Compiling sha v1.0.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling file-lock v2.1.4
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling regex v1.5.6
[INFO] [stderr]    Compiling getrandom v0.2.7
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling nix v0.24.1
[INFO] [stderr]    Compiling tempfile v3.3.0
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling mktemp v0.4.1
[INFO] [stderr]    Compiling env_logger v0.9.0
[INFO] [stderr]    Compiling strum_macros v0.24.0
[INFO] [stderr]    Compiling strum v0.24.1
[INFO] [stderr]    Compiling grass-ir v0.1.4
[INFO] [stderr]    Compiling grass-driver v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.37s
[INFO] running `Command { std: "docker" "inspect" "6d0c0e07e0b9b697c340349796e147c34704b8a9ee27d06dd38324ef88bb4b61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d0c0e07e0b9b697c340349796e147c34704b8a9ee27d06dd38324ef88bb4b61", kill_on_drop: false }`
[INFO] [stdout] 6d0c0e07e0b9b697c340349796e147c34704b8a9ee27d06dd38324ef88bb4b61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 551e05266b38db8ea92094bb2b29562de978c8ef92080f4baa27aec760b65181
[INFO] running `Command { std: "docker" "start" "-a" "551e05266b38db8ea92094bb2b29562de978c8ef92080f4baa27aec760b65181", kill_on_drop: false }`
[INFO] [stderr]    Compiling grass-driver v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "551e05266b38db8ea92094bb2b29562de978c8ef92080f4baa27aec760b65181", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "551e05266b38db8ea92094bb2b29562de978c8ef92080f4baa27aec760b65181", kill_on_drop: false }`
[INFO] [stdout] 551e05266b38db8ea92094bb2b29562de978c8ef92080f4baa27aec760b65181
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7fdf330bf5b7d686396a371337a672cfbec3996779ef21ae725b9a61099dc673
[INFO] running `Command { std: "docker" "start" "-a" "7fdf330bf5b7d686396a371337a672cfbec3996779ef21ae725b9a61099dc673", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/grass_driver-c2c8738d7af136db)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/grass_driver-b6b8e98681db4f51)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests grass_driver
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7fdf330bf5b7d686396a371337a672cfbec3996779ef21ae725b9a61099dc673", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fdf330bf5b7d686396a371337a672cfbec3996779ef21ae725b9a61099dc673", kill_on_drop: false }`
[INFO] [stdout] 7fdf330bf5b7d686396a371337a672cfbec3996779ef21ae725b9a61099dc673