[INFO] fetching crate syntastic 0.5.1...
[INFO] testing syntastic-0.5.1 against 1.91.0 for beta-1.92-2
[INFO] extracting crate syntastic 0.5.1 into /workspace/builds/worker-0-tc1/source
[INFO] removed /workspace/builds/worker-0-tc1/source/.cargo/config.toml
[INFO] started tweaking crates.io crate syntastic 0.5.1
[INFO] finished tweaking crates.io crate syntastic 0.5.1
[INFO] tweaked toml for crates.io crate syntastic 0.5.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate syntastic 0.5.1 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 70 packages to latest compatible versions
[INFO] [stderr]       Adding proptest v0.10.1 (available: v1.9.0)
[INFO] [stderr]       Adding proptest-derive v0.2.0 (available: v0.7.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ron v0.7.1
[INFO] [stderr]   Downloaded proptest-derive v0.2.0
[INFO] [stderr]   Downloaded proptest v0.10.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e87b32ac6740876e71cd43e289ac8e1f50c244c25dffe62d3130259a5595b8fd
[INFO] running `Command { std: "docker" "start" "-a" "e87b32ac6740876e71cd43e289ac8e1f50c244c25dffe62d3130259a5595b8fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e87b32ac6740876e71cd43e289ac8e1f50c244c25dffe62d3130259a5595b8fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e87b32ac6740876e71cd43e289ac8e1f50c244c25dffe62d3130259a5595b8fd", kill_on_drop: false }`
[INFO] [stdout] e87b32ac6740876e71cd43e289ac8e1f50c244c25dffe62d3130259a5595b8fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c5e8116e439388d1b4b74d88c53089c4d9012a1936359d985c04cf843ac70a1
[INFO] running `Command { std: "docker" "start" "-a" "0c5e8116e439388d1b4b74d88c53089c4d9012a1936359d985c04cf843ac70a1", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling syntastic v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.10s
[INFO] running `Command { std: "docker" "inspect" "0c5e8116e439388d1b4b74d88c53089c4d9012a1936359d985c04cf843ac70a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c5e8116e439388d1b4b74d88c53089c4d9012a1936359d985c04cf843ac70a1", kill_on_drop: false }`
[INFO] [stdout] 0c5e8116e439388d1b4b74d88c53089c4d9012a1936359d985c04cf843ac70a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b1c2ce365a80ea3562119e0606c75843f6ae42f39085f6baaf39253f666b93d7
[INFO] running `Command { std: "docker" "start" "-a" "b1c2ce365a80ea3562119e0606c75843f6ae42f39085f6baaf39253f666b93d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling wait-timeout v0.2.1
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling base64 v0.13.1
[INFO] [stderr]    Compiling console v0.15.11
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling bit-set v0.5.3
[INFO] [stderr]    Compiling ron v0.7.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_xorshift v0.2.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling insta v1.43.2
[INFO] [stderr]    Compiling tempfile v3.23.0
[INFO] [stderr]    Compiling rusty-fork v0.3.1
[INFO] [stderr]    Compiling proptest v0.10.1
[INFO] [stderr]    Compiling proptest-derive v0.2.0
[INFO] [stderr]    Compiling syntastic v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `insta::assert_json_snapshot`
[INFO] [stdout]    --> src/ast.rs:411:32
[INFO] [stdout]     |
[INFO] [stdout] 411 |         assert_debug_snapshot, assert_json_snapshot, assert_ron_snapshot, assert_snapshot,
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                |
[INFO] [stdout]     |                                no `assert_json_snapshot` in the root
[INFO] [stdout]     |                                help: a similar name exists in the module: `assert_ron_snapshot`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `syntastic` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "b1c2ce365a80ea3562119e0606c75843f6ae42f39085f6baaf39253f666b93d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1c2ce365a80ea3562119e0606c75843f6ae42f39085f6baaf39253f666b93d7", kill_on_drop: false }`
[INFO] [stdout] b1c2ce365a80ea3562119e0606c75843f6ae42f39085f6baaf39253f666b93d7