[INFO] fetching crate casperlabs-engine-core 0.7.1...
[INFO] checking casperlabs-engine-core-0.7.1 against master#a836d9b6413d9d593be6c09463ff8c4c70e56599 for pr-84037
[INFO] extracting crate casperlabs-engine-core 0.7.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate casperlabs-engine-core 0.7.1 on toolchain a836d9b6413d9d593be6c09463ff8c4c70e56599
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate casperlabs-engine-core 0.7.1
[INFO] finished tweaking crates.io crate casperlabs-engine-core 0.7.1
[INFO] tweaked toml for crates.io crate casperlabs-engine-core 0.7.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "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" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 091ed11d4649e5aff6932631ffdacd9d82a47597f218dd5e6e8e52a245369f47
[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" "091ed11d4649e5aff6932631ffdacd9d82a47597f218dd5e6e8e52a245369f47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "091ed11d4649e5aff6932631ffdacd9d82a47597f218dd5e6e8e52a245369f47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "091ed11d4649e5aff6932631ffdacd9d82a47597f218dd5e6e8e52a245369f47", kill_on_drop: false }`
[INFO] [stdout] 091ed11d4649e5aff6932631ffdacd9d82a47597f218dd5e6e8e52a245369f47
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 2c520d6ebcdd818db51a137f1ffb45a733f60d522bdc4d937d64b13fd1ca6832
[INFO] running `Command { std: "docker" "start" "-a" "2c520d6ebcdd818db51a137f1ffb45a733f60d522bdc4d937d64b13fd1ca6832", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking assert_matches v1.5.0
[INFO] [stderr]    Compiling wabt-sys v0.8.0
[INFO] [stderr]     Checking uint v0.8.5
[INFO] [stderr]     Checking pwasm-utils v0.12.0
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking backtrace v0.3.58
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking lmdb-sys v0.8.0
[INFO] [stderr]     Checking wee_alloc v0.4.5
[INFO] [stderr]     Checking wasmi v0.6.2
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking lmdb v0.8.0
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking rusty-fork v0.2.2
[INFO] [stderr]     Checking proptest v0.9.6
[INFO] [stderr]     Checking casperlabs-types v0.6.1
[INFO] [stderr]     Checking casperlabs-engine-wasm-prep v0.6.1
[INFO] [stderr]     Checking casperlabs-contract v0.6.1
[INFO] [stderr]     Checking casperlabs-proof-of-stake v0.4.1
[INFO] [stderr]     Checking casperlabs-mint v0.4.1
[INFO] [stderr]     Checking casperlabs-standard-payment v0.4.1
[INFO] [stderr]     Checking wabt v0.10.0
[INFO] [stderr]     Checking casperlabs-engine-shared v0.7.1
[INFO] [stdout] error[E0277]: the trait bound `std::string::String: ToValue` is not satisfied
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/casperlabs-engine-shared-0.7.1/src/logging/mod.rs:82:21
[INFO] [stdout]    |
[INFO] [stdout] 82 |         .key_values(&properties)
[INFO] [stdout]    |                     ^^^^^^^^^^^ the trait `ToValue` is not implemented for `std::string::String`
[INFO] [stdout]    |
[INFO] [stdout]    = note: required because of the requirements on the impl of `Source` for `BTreeMap<&str, std::string::String>`
[INFO] [stdout]    = note: required for the cast to the object type `dyn Source`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `std::string::String: ToValue` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/casperlabs-engine-shared-0.7.1/src/logging/mod.rs:160:21
[INFO] [stdout]     |
[INFO] [stdout] 160 |         .key_values(&properties)
[INFO] [stdout]     |                     ^^^^^^^^^^^ the trait `ToValue` is not implemented for `std::string::String`
[INFO] [stdout]     |
[INFO] [stdout]     = note: required because of the requirements on the impl of `Source` for `BTreeMap<&str, std::string::String>`
[INFO] [stdout]     = note: required for the cast to the object type `dyn Source`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `std::string::String: ToValue` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/casperlabs-engine-shared-0.7.1/src/logging/mod.rs:184:21
[INFO] [stdout]     |
[INFO] [stdout] 184 |         .key_values(&properties)
[INFO] [stdout]     |                     ^^^^^^^^^^^ the trait `ToValue` is not implemented for `std::string::String`
[INFO] [stdout]     |
[INFO] [stdout]     = note: required because of the requirements on the impl of `Source` for `BTreeMap<&str, std::string::String>`
[INFO] [stdout]     = note: required for the cast to the object type `dyn Source`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `casperlabs-engine-shared`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "2c520d6ebcdd818db51a137f1ffb45a733f60d522bdc4d937d64b13fd1ca6832", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c520d6ebcdd818db51a137f1ffb45a733f60d522bdc4d937d64b13fd1ca6832", kill_on_drop: false }`
[INFO] [stdout] 2c520d6ebcdd818db51a137f1ffb45a733f60d522bdc4d937d64b13fd1ca6832