[INFO] fetching crate sp-sandbox 0.8.0...
[INFO] checking sp-sandbox-0.8.0 against master#430feb24a46993e5073c1bb1b39da190d83fa2bf for pr-78363
[INFO] extracting crate sp-sandbox 0.8.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate sp-sandbox 0.8.0 on toolchain 430feb24a46993e5073c1bb1b39da190d83fa2bf
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sp-sandbox 0.8.0
[INFO] finished tweaking crates.io crate sp-sandbox 0.8.0
[INFO] tweaked toml for crates.io crate sp-sandbox 0.8.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3c54202dac786999796ac482389a488cb10142735d1d98c8e6955a3659f7e085
[INFO] running `Command { std: "docker" "start" "-a" "3c54202dac786999796ac482389a488cb10142735d1d98c8e6955a3659f7e085", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c54202dac786999796ac482389a488cb10142735d1d98c8e6955a3659f7e085", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c54202dac786999796ac482389a488cb10142735d1d98c8e6955a3659f7e085", kill_on_drop: false }`
[INFO] [stdout] 3c54202dac786999796ac482389a488cb10142735d1d98c8e6955a3659f7e085
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 327c3b2f5ab7a299442c28acc79479c91c43fa0c89be4d8c2178c218065e18bf
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "327c3b2f5ab7a299442c28acc79479c91c43fa0c89be4d8c2178c218065e18bf", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking hash-db v0.15.2
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking trie-root v0.16.0
[INFO] [stderr]     Checking trie-db v0.22.1
[INFO] [stderr]     Checking bitvec v0.17.4
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking futures-task v0.3.7
[INFO] [stderr]     Checking tiny-bip39 v0.7.3
[INFO] [stderr]     Checking futures-util v0.3.7
[INFO] [stderr]     Checking tracing-subscriber v0.2.14
[INFO] [stderr]     Checking parity-scale-codec v1.3.5
[INFO] [stderr]     Checking futures-executor v0.3.7
[INFO] [stderr]     Checking futures v0.3.7
[INFO] [stderr]     Checking impl-codec v0.4.2
[INFO] [stderr]     Checking sp-storage v2.0.0
[INFO] [stderr]     Checking sp-wasm-interface v2.0.0
[INFO] [stderr]     Checking sp-tracing v2.0.0
[INFO] [stderr]     Checking primitive-types v0.7.2
[INFO] [stderr]     Checking sp-externalities v0.8.0
[INFO] [stderr]     Checking parity-util-mem v0.7.0
[INFO] [stderr]     Checking sp-runtime-interface v2.0.0
[INFO] [stderr]     Checking memory-db v0.24.1
[INFO] [stderr]     Checking sp-core v2.0.0
[INFO] [stderr]     Checking sp-trie v2.0.0
[INFO] [stderr]     Checking sp-state-machine v0.8.0
[INFO] [stderr]     Checking sp-io v2.0.0
[INFO] [stderr]     Checking sp-sandbox v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `assert_matches`
[INFO] [stdout]    --> src/../with_std.rs:304:6
[INFO] [stdout]     |
[INFO] [stdout] 304 |     use assert_matches::assert_matches;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ use of undeclared crate or module `assert_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_matches`
[INFO] [stdout]    --> src/../with_std.rs:469:3
[INFO] [stdout]     |
[INFO] [stdout] 469 |         assert_matches!(
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `wat`
[INFO] [stdout]    --> src/../with_std.rs:353:14
[INFO] [stdout]     |
[INFO] [stdout] 353 |         let code = wat::parse_str(r#"
[INFO] [stdout]     |                    ^^^ use of undeclared crate or module `wat`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `wat`
[INFO] [stdout]    --> src/../with_std.rs:388:14
[INFO] [stdout]     |
[INFO] [stdout] 388 |         let code = wat::parse_str(r#"
[INFO] [stdout]     |                    ^^^ use of undeclared crate or module `wat`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `wat`
[INFO] [stdout]    --> src/../with_std.rs:410:14
[INFO] [stdout]     |
[INFO] [stdout] 410 |         let code = wat::parse_str(r#"
[INFO] [stdout]     |                    ^^^ use of undeclared crate or module `wat`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `wat`
[INFO] [stdout]    --> src/../with_std.rs:452:14
[INFO] [stdout]     |
[INFO] [stdout] 452 |         let code = wat::parse_str(r#"
[INFO] [stdout]     |                    ^^^ use of undeclared crate or module `wat`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Error`
[INFO] [stdout]    --> src/../with_std.rs:303:14
[INFO] [stdout]     |
[INFO] [stdout] 303 |     use crate::{Error, Value, ReturnValue, HostError, EnvironmentDefinitionBuilder, Instance};
[INFO] [stdout]     |                 ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sp-sandbox`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "327c3b2f5ab7a299442c28acc79479c91c43fa0c89be4d8c2178c218065e18bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "327c3b2f5ab7a299442c28acc79479c91c43fa0c89be4d8c2178c218065e18bf", kill_on_drop: false }`
[INFO] [stdout] 327c3b2f5ab7a299442c28acc79479c91c43fa0c89be4d8c2178c218065e18bf