[INFO] fetching crate iota-wallet 1.0.0-rc.6...
[INFO] checking iota-wallet-1.0.0-rc.6 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate iota-wallet 1.0.0-rc.6 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate iota-wallet 1.0.0-rc.6
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate iota-wallet 1.0.0-rc.6
[INFO] tweaked toml for crates.io crate iota-wallet 1.0.0-rc.6 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate iota-wallet 1.0.0-rc.6 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate iota-wallet 1.0.0-rc.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded parity-scale-codec-derive v3.1.4
[INFO] [stderr]   Downloaded prefix-hex v0.6.0
[INFO] [stderr]   Downloaded serde v1.0.154
[INFO] [stderr]   Downloaded packable v0.7.0
[INFO] [stderr]   Downloaded time-helper v0.1.0
[INFO] [stderr]   Downloaded prefix-hex v0.5.0
[INFO] [stderr]   Downloaded iota-pow v1.0.0-rc.4
[INFO] [stderr]   Downloaded packable-derive v0.7.0
[INFO] [stderr]   Downloaded serde_derive v1.0.154
[INFO] [stderr]   Downloaded fern-logger v0.5.0
[INFO] [stderr]   Downloaded bech32 v0.7.3
[INFO] [stderr]   Downloaded serde_repr v0.1.11
[INFO] [stderr]   Downloaded iterator-sorted v0.1.0
[INFO] [stderr]   Downloaded blake2b_simd v1.0.1
[INFO] [stderr]   Downloaded snafu-derive v0.7.4
[INFO] [stderr]   Downloaded stronghold-derive v1.0.0
[INFO] [stderr]   Downloaded constant_time_eq v0.2.4
[INFO] [stderr]   Downloaded trait-async v0.1.24
[INFO] [stderr]   Downloaded rust-argon2 v1.0.0
[INFO] [stderr]   Downloaded stronghold-runtime v1.0.2
[INFO] [stderr]   Downloaded toml_edit v0.19.4
[INFO] [stderr]   Downloaded iota-ledger-nano v1.0.0-alpha.4
[INFO] [stderr]   Downloaded snafu v0.7.4
[INFO] [stderr]   Downloaded iota-types v1.0.0-rc.7
[INFO] [stderr]   Downloaded rocksdb v0.20.1
[INFO] [stderr]   Downloaded iota-crypto v0.15.3
[INFO] [stderr]   Downloaded stronghold_engine v1.0.2
[INFO] [stderr]   Downloaded iota_stronghold v1.0.5
[INFO] [stderr]   Downloaded stronghold-utils v1.0.0
[INFO] [stderr]   Downloaded parity-scale-codec v3.4.0
[INFO] [stderr]   Downloaded iota-client v2.0.1-rc.7
[INFO] [stderr]   Downloaded librocksdb-sys v0.10.0+7.9.2
[INFO] [stderr]   Downloaded windows v0.36.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e808fd7c35aa6f63e418b99cb3f9f6c31e22156fe91d860211903e8a72d40c11
[INFO] running `Command { std: "docker" "start" "-a" "e808fd7c35aa6f63e418b99cb3f9f6c31e22156fe91d860211903e8a72d40c11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e808fd7c35aa6f63e418b99cb3f9f6c31e22156fe91d860211903e8a72d40c11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e808fd7c35aa6f63e418b99cb3f9f6c31e22156fe91d860211903e8a72d40c11", kill_on_drop: false }`
[INFO] [stdout] e808fd7c35aa6f63e418b99cb3f9f6c31e22156fe91d860211903e8a72d40c11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b984bc4e139c6b9066e0e1372078937e01729bd6f65ced29f9a45f1664990f48
[INFO] running `Command { std: "docker" "start" "-a" "b984bc4e139c6b9066e0e1372078937e01729bd6f65ced29f9a45f1664990f48", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling serde_derive v1.0.154
[INFO] [stderr]    Compiling serde v1.0.154
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.51/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking cpufeatures v0.2.5
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]    Compiling futures-core v0.3.26
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b984bc4e139c6b9066e0e1372078937e01729bd6f65ced29f9a45f1664990f48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b984bc4e139c6b9066e0e1372078937e01729bd6f65ced29f9a45f1664990f48", kill_on_drop: false }`
[INFO] [stdout] b984bc4e139c6b9066e0e1372078937e01729bd6f65ced29f9a45f1664990f48