[INFO] cloning repository https://github.com/Tied2-nodes/knowhow
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Tied2-nodes/knowhow" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTied2-nodes%2Fknowhow", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTied2-nodes%2Fknowhow'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dd26816fa30c424d01088904e6879a925796ab9b
[INFO] checking Tied2-nodes/knowhow/dd26816fa30c424d01088904e6879a925796ab9b against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTied2-nodes%2Fknowhow" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Tied2-nodes/knowhow on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0-tc1/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/Tied2-nodes/knowhow
[INFO] finished tweaking git repo https://github.com/Tied2-nodes/knowhow
[INFO] tweaked toml for git repo https://github.com/Tied2-nodes/knowhow written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Tied2-nodes/knowhow 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" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded inotify-sys v0.1.4
[INFO] [stderr]   Downloaded cargo-watch v8.1.2
[INFO] [stderr]   Downloaded zvariant_derive v3.7.1
[INFO] [stderr]   Downloaded terminfo v0.7.4
[INFO] [stderr]   Downloaded zvariant v3.7.1
[INFO] [stderr]   Downloaded loom v0.5.0
[INFO] [stderr]   Downloaded notify-rust v4.5.8
[INFO] [stderr]   Downloaded web3 v0.17.0
[INFO] [stderr]   Downloaded ethabi v14.1.0
[INFO] [stderr]   Downloaded async-trait v0.1.49
[INFO] [stderr]   Downloaded ethcontract-common v0.15.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] af2e6445433e915f3a15c7555797ce3ce2cea4a6655adb1cb7e059b6f0834910
[INFO] running `Command { std: "docker" "start" "-a" "af2e6445433e915f3a15c7555797ce3ce2cea4a6655adb1cb7e059b6f0834910", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af2e6445433e915f3a15c7555797ce3ce2cea4a6655adb1cb7e059b6f0834910", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af2e6445433e915f3a15c7555797ce3ce2cea4a6655adb1cb7e059b6f0834910", kill_on_drop: false }`
[INFO] [stdout] af2e6445433e915f3a15c7555797ce3ce2cea4a6655adb1cb7e059b6f0834910
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b06d8e1e63184e069fc8ddd94150a7bd782fe89dfa6250ebce5aa47cd6ef4b1a
[INFO] running `Command { std: "docker" "start" "-a" "b06d8e1e63184e069fc8ddd94150a7bd782fe89dfa6250ebce5aa47cd6ef4b1a", kill_on_drop: false }`
[INFO] [stderr] warning: safe-client-gateway v3.0.1 (/opt/rustwide/workdir) ignoring invalid dependency `cargo-watch` which is missing a lib target
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling syn v1.0.101
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.56/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]    Compiling cc v1.0.66
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[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 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b06d8e1e63184e069fc8ddd94150a7bd782fe89dfa6250ebce5aa47cd6ef4b1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b06d8e1e63184e069fc8ddd94150a7bd782fe89dfa6250ebce5aa47cd6ef4b1a", kill_on_drop: false }`
[INFO] [stdout] b06d8e1e63184e069fc8ddd94150a7bd782fe89dfa6250ebce5aa47cd6ef4b1a