[INFO] cloning repository https://github.com/apoelstra/icebox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/apoelstra/icebox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fapoelstra%2Ficebox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fapoelstra%2Ficebox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 541194912158138d7cf96e5a84594470b4f00044
[INFO] checking apoelstra/icebox/541194912158138d7cf96e5a84594470b4f00044 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fapoelstra%2Ficebox" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/apoelstra/icebox 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] started tweaking git repo https://github.com/apoelstra/icebox
[INFO] finished tweaking git repo https://github.com/apoelstra/icebox
[INFO] tweaked toml for git repo https://github.com/apoelstra/icebox written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/apoelstra/icebox 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]  Downloading crates ...
[INFO] [stderr]   Downloaded jsonrpc v0.14.0
[INFO] [stderr]   Downloaded hidapi v2.0.2
[INFO] [stderr]   Downloaded miniscript v9.0.0
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd0e37c784b43451eb444b56e4b18812ed269d9fcec10d8f75a420b7d4b74056
[INFO] running `Command { std: "docker" "start" "-a" "dd0e37c784b43451eb444b56e4b18812ed269d9fcec10d8f75a420b7d4b74056", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd0e37c784b43451eb444b56e4b18812ed269d9fcec10d8f75a420b7d4b74056", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd0e37c784b43451eb444b56e4b18812ed269d9fcec10d8f75a420b7d4b74056", kill_on_drop: false }`
[INFO] [stdout] dd0e37c784b43451eb444b56e4b18812ed269d9fcec10d8f75a420b7d4b74056
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac7c0105a004fd8ef81d7cfa5cb12e208fafb285853826ced22c79ce6a658b12
[INFO] running `Command { std: "docker" "start" "-a" "ac7c0105a004fd8ef81d7cfa5cb12e208fafb285853826ced22c79ce6a658b12", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.104
[INFO] [stderr]    Compiling cc v1.0.77
[INFO] [stderr]    Compiling serde_derive v1.0.148
[INFO] [stderr]    Compiling serde v1.0.148
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]     Checking bech32 v0.9.1
[INFO] [stderr]    Compiling anyhow v1.0.66
[INFO] [stderr]    Compiling serde_json v1.0.89
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.47/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 thiserror v1.0.37
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking home v0.5.4
[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" "ac7c0105a004fd8ef81d7cfa5cb12e208fafb285853826ced22c79ce6a658b12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac7c0105a004fd8ef81d7cfa5cb12e208fafb285853826ced22c79ce6a658b12", kill_on_drop: false }`
[INFO] [stdout] ac7c0105a004fd8ef81d7cfa5cb12e208fafb285853826ced22c79ce6a658b12