[INFO] fetching crate pallet-mmr 3.0.0...
[INFO] checking pallet-mmr-3.0.0 against master#f82664191d0e8764b7435b9d72eb0e366b8b1464 for pr-83354
[INFO] extracting crate pallet-mmr 3.0.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate pallet-mmr 3.0.0 on toolchain f82664191d0e8764b7435b9d72eb0e366b8b1464
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "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-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "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] 2fb714ae0cdce2664dd29131b14e986a07060f317b38b7b0faf43c2e0f4216f7
[INFO] running `Command { std: "docker" "start" "-a" "2fb714ae0cdce2664dd29131b14e986a07060f317b38b7b0faf43c2e0f4216f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2fb714ae0cdce2664dd29131b14e986a07060f317b38b7b0faf43c2e0f4216f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fb714ae0cdce2664dd29131b14e986a07060f317b38b7b0faf43c2e0f4216f7", kill_on_drop: false }`
[INFO] [stdout] 2fb714ae0cdce2664dd29131b14e986a07060f317b38b7b0faf43c2e0f4216f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e905c0b69d30d074971d0b089f53e56750bce070ab8740c96b97afd6955a896d
[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" "e905c0b69d30d074971d0b089f53e56750bce070ab8740c96b97afd6955a896d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.65
[INFO] [stderr]    Compiling radium v0.6.2
[INFO] [stderr]     Checking tap v1.0.1
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[INFO] [stderr]    Compiling getrandom v0.2.2
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[INFO] [stderr]    Compiling synstructure v0.12.4
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[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling parity-util-mem-derive v0.1.0
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[INFO] [stderr]     Checking schnorrkel v0.9.1
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[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]     Checking substrate-bip39 v0.4.2
[INFO] [stderr]     Checking tracing-subscriber v0.2.17
[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 v2.0.1
[INFO] [stderr]    Compiling sp-runtime-interface-proc-macro v3.0.0
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[INFO] [stderr]     Checking sp-state-machine v0.9.0
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[INFO] [stderr]     Checking sp-application-crypto v3.0.0
[INFO] [stderr]     Checking sp-runtime v3.0.0
[INFO] [stderr]     Checking sp-staking v3.0.0
[INFO] [stderr]     Checking sp-version v3.0.0
[INFO] [stderr]     Checking frame-support v3.0.0
[INFO] [stderr]     Checking sp-api v3.0.0
[INFO] [stderr]     Checking frame-system v3.0.0
[INFO] [stderr]     Checking frame-benchmarking v3.1.0
[INFO] [stderr]     Checking pallet-mmr-primitives v3.0.0
[INFO] [stderr]     Checking 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] 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] warning: 1 warning emitted
[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" "e905c0b69d30d074971d0b089f53e56750bce070ab8740c96b97afd6955a896d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e905c0b69d30d074971d0b089f53e56750bce070ab8740c96b97afd6955a896d", kill_on_drop: false }`
[INFO] [stdout] e905c0b69d30d074971d0b089f53e56750bce070ab8740c96b97afd6955a896d