[INFO] cloning repository https://github.com/MTDK1/srml-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MTDK1/srml-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMTDK1%2Fsrml-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMTDK1%2Fsrml-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 83d6f20d77bbfe869b205989adc37bec2d056b0d
[INFO] checking MTDK1/srml-example against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMTDK1%2Fsrml-example" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MTDK1/srml-example on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MTDK1/srml-example
[INFO] finished tweaking git repo https://github.com/MTDK1/srml-example
[INFO] tweaked toml for git repo https://github.com/MTDK1/srml-example written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/MTDK1/srml-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8db4d7985d6bd35fedc87fa4bcd23f8c3c91b41b945e332a7d956af4cac7cc97
[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" "8db4d7985d6bd35fedc87fa4bcd23f8c3c91b41b945e332a7d956af4cac7cc97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8db4d7985d6bd35fedc87fa4bcd23f8c3c91b41b945e332a7d956af4cac7cc97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8db4d7985d6bd35fedc87fa4bcd23f8c3c91b41b945e332a7d956af4cac7cc97", kill_on_drop: false }`
[INFO] [stdout] 8db4d7985d6bd35fedc87fa4bcd23f8c3c91b41b945e332a7d956af4cac7cc97
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea859ea84b1f5213f852f610bcfdd3e42ee4a41237162f00e00eec2d52356f0d
[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" "ea859ea84b1f5213f852f610bcfdd3e42ee4a41237162f00e00eec2d52356f0d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]    Compiling serde v1.0.97
[INFO] [stderr]     Checking rustc-demangle v0.1.15
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling subtle v2.1.0
[INFO] [stderr]     Checking rustc-hex v2.0.1
[INFO] [stderr]     Checking hash-db v0.14.0
[INFO] [stderr]     Checking bitvec v0.11.3
[INFO] [stderr]     Checking static_assertions v0.2.5
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]    Compiling log v0.4.7
[INFO] [stderr]     Checking memory_units v0.3.0
[INFO] [stderr]     Checking base58 v0.1.0
[INFO] [stderr]     Checking hashmap_core v0.1.10
[INFO] [stderr]     Checking byte-tools v0.2.0
[INFO] [stderr]     Checking arrayref v0.3.5
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking environmental v1.0.1
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling constant_time_eq v0.1.3
[INFO] [stderr]     Checking integer-sqrt v0.1.2
[INFO] [stderr]     Checking bitmask v0.5.0
[INFO] [stderr]     Checking strum v0.14.0
[INFO] [stderr]     Checking block-padding v0.1.4
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking trie-root v0.14.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking regex-syntax v0.6.8
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]     Checking generic-array v0.8.3
[INFO] [stderr]    Compiling sr-std v2.0.0 (https://github.com/paritytech/substrate.git?rev=6dc833c42ebb89a2684ed04be4689164eb59ca97#6dc833c4)
[INFO] [stderr]    Compiling sr-io v2.0.0 (https://github.com/paritytech/substrate.git?rev=6dc833c42ebb89a2684ed04be4689164eb59ca97#6dc833c4)
[INFO] [stderr]    Compiling safe-mix v1.0.0
[INFO] [stderr]     Checking blake2-rfc v0.2.18
[INFO] [stderr]     Checking aho-corasick v0.7.4
[INFO] [stderr]     Checking elastic-array v0.10.2
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]     Checking hash256-std-hasher v0.14.0
[INFO] [stderr]     Checking tiny-keccak v1.5.0
[INFO] [stderr]     Checking digest v0.6.2
[INFO] [stderr]     Checking crypto-mac v0.4.0
[INFO] [stderr]     Checking block-buffer v0.2.0
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]     Checking hmac v0.4.2
[INFO] [stderr]     Checking sha2 v0.6.0
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking parity-wasm v0.31.3
[INFO] [stderr]     Checking pbkdf2 v0.3.0
[INFO] [stderr]     Checking uint v0.8.0
[INFO] [stderr]     Checking hashbrown v0.1.8
[INFO] [stderr]     Checking hmac-drbg v0.1.2
[INFO] [stderr]     Checking sha2 v0.8.0
[INFO] [stderr]     Checking sha3 v0.8.2
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking libsecp256k1 v0.2.2
[INFO] [stderr]    Compiling clear_on_drop v0.2.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]     Checking merlin v1.2.0
[INFO] [stderr]    Compiling curve25519-dalek v1.2.1
[INFO] [stderr]     Checking fixed-hash v0.4.0
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking twox-hash v1.4.2
[INFO] [stderr]     Checking trie-db v0.14.0
[INFO] [stderr]     Checking parking_lot_core v0.5.0
[INFO] [stderr]     Checking backtrace v0.3.33
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking parking_lot v0.8.0
[INFO] [stderr]     Checking regex v1.1.9
[INFO] [stderr]     Checking substrate-panic-handler v2.0.0 (https://github.com/paritytech/substrate.git?rev=6dc833c42ebb89a2684ed04be4689164eb59ca97#6dc833c4)
[INFO] [stderr]     Checking once_cell v0.1.8
[INFO] [stderr]     Checking wasmi-validation v0.1.0
[INFO] [stderr]     Checking wasmi v0.4.5
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.97
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling malloc_size_of_derive v0.1.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.8
[INFO] [stderr]    Compiling srml-support-procedural-tools-derive v2.0.0 (https://github.com/paritytech/substrate.git?rev=6dc833c42ebb89a2684ed04be4689164eb59ca97#6dc833c4)
[INFO] [stderr]    Compiling strum_macros v0.14.0
[INFO] [stderr]    Compiling paste-impl v0.1.5
[INFO] [stderr]     Checking parity-util-mem v0.2.0
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking memory-db v0.14.0
[INFO] [stderr]     Checking ed25519-dalek v1.0.0-pre.1
[INFO] [stderr]     Checking tiny-bip39 v0.6.2
[INFO] [stderr]     Checking paste v0.1.5
[INFO] [stderr]     Checking schnorrkel v0.1.1
[INFO] [stderr]     Checking substrate-bip39 v0.2.2
[INFO] [stderr]     Checking impl-serde v0.2.0
[INFO] [stderr]     Checking impl-serde v0.1.1
[INFO] [stderr]    Compiling toml v0.5.1
[INFO] [stderr]    Compiling proc-macro-crate v0.1.4
[INFO] [stderr]    Compiling srml-support-procedural-tools v2.0.0 (https://github.com/paritytech/substrate.git?rev=6dc833c42ebb89a2684ed04be4689164eb59ca97#6dc833c4)
[INFO] [stderr]    Compiling parity-codec-derive v3.3.0
[INFO] [stderr]    Compiling sr-api-macros v2.0.0 (https://github.com/paritytech/substrate.git?rev=6dc833c42ebb89a2684ed04be4689164eb59ca97#6dc833c4)
[INFO] [stderr]     Checking parity-codec v4.1.2
[INFO] [stderr]     Checking impl-codec v0.3.0
[INFO] [stderr]     Checking primitive-types v0.4.0
[INFO] [stderr]     Checking substrate-primitives v2.0.0 (https://github.com/paritytech/substrate.git?rev=6dc833c42ebb89a2684ed04be4689164eb59ca97#6dc833c4)
[INFO] [stderr]     Checking substrate-trie v2.0.0 (https://github.com/paritytech/substrate.git?rev=6dc833c42ebb89a2684ed04be4689164eb59ca97#6dc833c4)
[INFO] [stderr]     Checking srml-metadata v2.0.0 (https://github.com/paritytech/substrate.git?rev=6dc833c42ebb89a2684ed04be4689164eb59ca97#6dc833c4)
[INFO] [stderr]     Checking substrate-state-machine v2.0.0 (https://github.com/paritytech/substrate.git?rev=6dc833c42ebb89a2684ed04be4689164eb59ca97#6dc833c4)
[INFO] [stderr]    Compiling srml-support-procedural v2.0.0 (https://github.com/paritytech/substrate.git?rev=6dc833c42ebb89a2684ed04be4689164eb59ca97#6dc833c4)
[INFO] [stderr]     Checking sr-primitives v2.0.0 (https://github.com/paritytech/substrate.git?rev=6dc833c42ebb89a2684ed04be4689164eb59ca97#6dc833c4)
[INFO] [stderr]     Checking substrate-inherents v2.0.0 (https://github.com/paritytech/substrate.git?rev=6dc833c42ebb89a2684ed04be4689164eb59ca97#6dc833c4)
[INFO] [stderr]     Checking substrate-keyring v2.0.0 (https://github.com/paritytech/substrate.git?rev=6dc833c42ebb89a2684ed04be4689164eb59ca97#6dc833c4)
[INFO] [stderr]     Checking srml-support v2.0.0 (https://github.com/paritytech/substrate.git?rev=6dc833c42ebb89a2684ed04be4689164eb59ca97#6dc833c4)
[INFO] [stderr]     Checking srml-system v2.0.0 (https://github.com/paritytech/substrate.git?rev=6dc833c42ebb89a2684ed04be4689164eb59ca97#6dc833c4)
[INFO] [stdout] error[E0277]: the trait bound `<T as Trait>::BlockNumber: From<i32>` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/substrate-7e08433d4c370a21/6dc833c/srml/system/src/lib.rs:322:40
[INFO] [stdout]     |
[INFO] [stdout] 322 |         Number get(block_number) build(|_| 1.into()): T::BlockNumber;
[INFO] [stdout]     |                                              ^^^^ the trait `From<i32>` is not implemented for `<T as Trait>::BlockNumber`
[INFO] [stdout]     |
[INFO] [stdout]     = note: required because of the requirements on the impl of `Into<<T as Trait>::BlockNumber>` for `i32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `srml-system`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "ea859ea84b1f5213f852f610bcfdd3e42ee4a41237162f00e00eec2d52356f0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea859ea84b1f5213f852f610bcfdd3e42ee4a41237162f00e00eec2d52356f0d", kill_on_drop: false }`
[INFO] [stdout] ea859ea84b1f5213f852f610bcfdd3e42ee4a41237162f00e00eec2d52356f0d