[INFO] fetching crate syntastic 0.5.1...
[INFO] building syntastic-0.5.1 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate syntastic 0.5.1 into /workspace/builds/worker-3-tc2/source
[INFO] removed /workspace/builds/worker-3-tc2/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-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate syntastic 0.5.1 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 71 packages to latest compatible versions
[INFO] [stderr]       Adding proptest v0.10.1 (available: v1.8.0)
[INFO] [stderr]       Adding proptest-derive v0.2.0 (available: v0.6.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b6ee46df9de563cbb51903ea4d8c04e70e0fe919146a529392161558262c2ec
[INFO] running `Command { std: "docker" "start" "-a" "0b6ee46df9de563cbb51903ea4d8c04e70e0fe919146a529392161558262c2ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b6ee46df9de563cbb51903ea4d8c04e70e0fe919146a529392161558262c2ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b6ee46df9de563cbb51903ea4d8c04e70e0fe919146a529392161558262c2ec", kill_on_drop: false }`
[INFO] [stdout] 0b6ee46df9de563cbb51903ea4d8c04e70e0fe919146a529392161558262c2ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2638e476e52576b5565ba9c18289a9489d9068fba3b84fa5addd976010b5786d
[INFO] running `Command { std: "docker" "start" "-a" "2638e476e52576b5565ba9c18289a9489d9068fba3b84fa5addd976010b5786d", kill_on_drop: false }`
[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 0.90s
[INFO] running `Command { std: "docker" "inspect" "2638e476e52576b5565ba9c18289a9489d9068fba3b84fa5addd976010b5786d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2638e476e52576b5565ba9c18289a9489d9068fba3b84fa5addd976010b5786d", kill_on_drop: false }`
[INFO] [stdout] 2638e476e52576b5565ba9c18289a9489d9068fba3b84fa5addd976010b5786d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b9b6b05a16ec983a69efcd7fd4ddab16c06beeed7ed599b33ea5c25cdca99bd
[INFO] running `Command { std: "docker" "start" "-a" "9b9b6b05a16ec983a69efcd7fd4ddab16c06beeed7ed599b33ea5c25cdca99bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[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 base64 v0.13.1
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling console v0.15.11
[INFO] [stderr]    Compiling similar v2.7.0
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rusty-fork v0.3.0
[INFO] [stderr]    Compiling bit-set v0.5.3
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling ron v0.7.1
[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 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" "9b9b6b05a16ec983a69efcd7fd4ddab16c06beeed7ed599b33ea5c25cdca99bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b9b6b05a16ec983a69efcd7fd4ddab16c06beeed7ed599b33ea5c25cdca99bd", kill_on_drop: false }`
[INFO] [stdout] 9b9b6b05a16ec983a69efcd7fd4ddab16c06beeed7ed599b33ea5c25cdca99bd