[INFO] fetching crate pallet-mmr 3.0.0...
[INFO] testing pallet-mmr-3.0.0 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate pallet-mmr 3.0.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate pallet-mmr 3.0.0 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pallet-mmr 3.0.0
[INFO] finished tweaking crates.io crate pallet-mmr 3.0.0
[INFO] tweaked toml for crates.io crate pallet-mmr 3.0.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "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] 44252b5b54978e3e92b489e484abd43024b2e7f4a81a3b4ba9ba28793219b008
[INFO] running `Command { std: "docker" "start" "-a" "44252b5b54978e3e92b489e484abd43024b2e7f4a81a3b4ba9ba28793219b008", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44252b5b54978e3e92b489e484abd43024b2e7f4a81a3b4ba9ba28793219b008", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44252b5b54978e3e92b489e484abd43024b2e7f4a81a3b4ba9ba28793219b008", kill_on_drop: false }`
[INFO] [stdout] 44252b5b54978e3e92b489e484abd43024b2e7f4a81a3b4ba9ba28793219b008
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b3d11db7bbfd086b1acbbe5eb03950fdbd184a8fba16e21c00f8601cc5f0ac52
[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" "b3d11db7bbfd086b1acbbe5eb03950fdbd184a8fba16e21c00f8601cc5f0ac52", kill_on_drop: false }`
[INFO] [stderr]    Compiling ckb-merkle-mountain-range v0.3.1
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling thiserror v1.0.26
[INFO] [stderr]    Compiling simba v0.5.1
[INFO] [stderr]    Compiling ref-cast v1.0.6
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling dyn-clonable v0.9.0
[INFO] [stderr]    Compiling zeroize v1.3.0
[INFO] [stderr]    Compiling merlin v2.0.1
[INFO] [stderr]    Compiling curve25519-dalek v2.1.3
[INFO] [stderr]    Compiling curve25519-dalek v3.1.0
[INFO] [stderr]    Compiling secrecy v0.7.0
[INFO] [stderr]    Compiling tiny-bip39 v0.8.0
[INFO] [stderr]    Compiling futures-executor v0.3.15
[INFO] [stderr]    Compiling futures v0.3.15
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling impl-serde v0.3.1
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling tracing-serde v0.1.2
[INFO] [stderr]    Compiling schnorrkel v0.9.1
[INFO] [stderr]    Compiling ed25519-dalek v1.0.1
[INFO] [stderr]    Compiling substrate-bip39 v0.4.2
[INFO] [stderr]    Compiling tracing-subscriber v0.2.19
[INFO] [stderr]    Compiling proc-macro-crate v1.0.0
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling frame-support-procedural-tools v3.0.0
[INFO] [stderr]    Compiling parity-scale-codec-derive v2.2.0
[INFO] [stderr]    Compiling sp-runtime-interface-proc-macro v3.0.0
[INFO] [stderr]    Compiling sp-api-proc-macro v3.0.0
[INFO] [stderr]    Compiling frame-support-procedural v3.0.0
[INFO] [stderr]    Compiling nalgebra v0.27.1
[INFO] [stderr]    Compiling parity-scale-codec v2.2.0
[INFO] [stderr]    Compiling impl-codec v0.5.1
[INFO] [stderr]    Compiling sp-storage v3.0.0
[INFO] [stderr]    Compiling sp-tracing v3.0.0
[INFO] [stderr]    Compiling sp-wasm-interface v3.0.0
[INFO] [stderr]    Compiling sp-arithmetic v3.0.0
[INFO] [stderr]    Compiling primitive-types v0.9.1
[INFO] [stderr]    Compiling sp-externalities v0.9.0
[INFO] [stderr]    Compiling parity-util-mem v0.9.0
[INFO] [stderr]    Compiling sp-runtime-interface v3.0.0
[INFO] [stderr]    Compiling memory-db v0.26.0
[INFO] [stderr]    Compiling sp-core v3.0.0
[INFO] [stderr]    Compiling sp-trie v3.0.0
[INFO] [stderr]    Compiling sp-keystore v0.9.0
[INFO] [stderr]    Compiling sp-inherents v3.0.0
[INFO] [stderr]    Compiling frame-metadata v13.0.0
[INFO] [stderr]    Compiling sp-state-machine v0.9.0
[INFO] [stderr]    Compiling sp-io v3.0.0
[INFO] [stderr]    Compiling sp-application-crypto v3.0.0
[INFO] [stderr]    Compiling sp-runtime v3.0.0
[INFO] [stderr]    Compiling statrs v0.15.0
[INFO] [stderr]    Compiling linregress v0.4.3
[INFO] [stderr]    Compiling sp-version v3.0.0
[INFO] [stderr]    Compiling sp-staking v3.0.0
[INFO] [stderr]    Compiling frame-support v3.0.0
[INFO] [stderr]    Compiling sp-api v3.0.0
[INFO] [stderr]    Compiling frame-system v3.0.0
[INFO] [stderr]    Compiling frame-benchmarking v3.1.0
[INFO] [stderr]    Compiling pallet-mmr-primitives v3.0.0
[INFO] [stderr]    Compiling pallet-mmr v3.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/lib.rs:157:20
[INFO] [stdout]     |
[INFO] [stdout] 157 |         fn on_initialize(n: T::BlockNumber) -> Weight {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 18s
[INFO] running `Command { std: "docker" "inspect" "b3d11db7bbfd086b1acbbe5eb03950fdbd184a8fba16e21c00f8601cc5f0ac52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3d11db7bbfd086b1acbbe5eb03950fdbd184a8fba16e21c00f8601cc5f0ac52", kill_on_drop: false }`
[INFO] [stdout] b3d11db7bbfd086b1acbbe5eb03950fdbd184a8fba16e21c00f8601cc5f0ac52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 002cd80e67ac0ac38425b85de940e2cd5b4bef6426272a70d15b2204d4f655b5
[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" "002cd80e67ac0ac38425b85de940e2cd5b4bef6426272a70d15b2204d4f655b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling pallet-mmr v3.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/lib.rs:157:20
[INFO] [stdout]     |
[INFO] [stdout] 157 |         fn on_initialize(n: T::BlockNumber) -> Weight {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `env_logger`
[INFO] [stdout]   --> src/mmr/utils.rs:97:11
[INFO] [stdout]    |
[INFO] [stdout] 97 |         let _ = env_logger::try_init();
[INFO] [stdout]    |                 ^^^^^^^^^^ use of undeclared crate or module `env_logger`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `env_logger`
[INFO] [stdout]   --> src/tests.rs:86:10
[INFO] [stdout]    |
[INFO] [stdout] 86 |     let _ = env_logger::try_init();
[INFO] [stdout]    |             ^^^^^^^^^^ use of undeclared crate or module `env_logger`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `env_logger`
[INFO] [stdout]    --> src/tests.rs:113:10
[INFO] [stdout]     |
[INFO] [stdout] 113 |     let _ = env_logger::try_init();
[INFO] [stdout]     |             ^^^^^^^^^^ use of undeclared crate or module `env_logger`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `env_logger`
[INFO] [stdout]    --> src/tests.rs:156:10
[INFO] [stdout]     |
[INFO] [stdout] 156 |     let _ = env_logger::try_init();
[INFO] [stdout]     |             ^^^^^^^^^^ use of undeclared crate or module `env_logger`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `env_logger`
[INFO] [stdout]    --> src/tests.rs:177:10
[INFO] [stdout]     |
[INFO] [stdout] 177 |     let _ = env_logger::try_init();
[INFO] [stdout]     |             ^^^^^^^^^^ use of undeclared crate or module `env_logger`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `env_logger`
[INFO] [stdout]    --> src/tests.rs:234:10
[INFO] [stdout]     |
[INFO] [stdout] 234 |     let _ = env_logger::try_init();
[INFO] [stdout]     |             ^^^^^^^^^^ use of undeclared crate or module `env_logger`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `env_logger`
[INFO] [stdout]    --> src/tests.rs:263:10
[INFO] [stdout]     |
[INFO] [stdout] 263 |     let _ = env_logger::try_init();
[INFO] [stdout]     |             ^^^^^^^^^^ use of undeclared crate or module `env_logger`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `env_logger`
[INFO] [stdout]    --> src/tests.rs:287:10
[INFO] [stdout]     |
[INFO] [stdout] 287 |     let _ = env_logger::try_init();
[INFO] [stdout]     |             ^^^^^^^^^^ use of undeclared crate or module `env_logger`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pallet-mmr`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "002cd80e67ac0ac38425b85de940e2cd5b4bef6426272a70d15b2204d4f655b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "002cd80e67ac0ac38425b85de940e2cd5b4bef6426272a70d15b2204d4f655b5", kill_on_drop: false }`
[INFO] [stdout] 002cd80e67ac0ac38425b85de940e2cd5b4bef6426272a70d15b2204d4f655b5