[INFO] cloning repository https://github.com/simpago/rsnano-ledger-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/simpago/rsnano-ledger-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimpago%2Frsnano-ledger-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimpago%2Frsnano-ledger-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 96efb3513871fd80b74a5a0077b2c896e3dcecd3
[INFO] testing simpago/rsnano-ledger-example against try#ed7f3d77595b4831fdf085f2529aa13b5b51ff7d for pr-134530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimpago%2Frsnano-ledger-example" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/simpago/rsnano-ledger-example on toolchain ed7f3d77595b4831fdf085f2529aa13b5b51ff7d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/simpago/rsnano-ledger-example
[INFO] finished tweaking git repo https://github.com/simpago/rsnano-ledger-example
[INFO] tweaked toml for git repo https://github.com/simpago/rsnano-ledger-example written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/simpago/rsnano-ledger-example 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" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/simpago/rsnano-node`
[INFO] [stderr]     Updating git submodule `https://github.com/cryptocode/cpptoml.git`
[INFO] [stderr]     Updating git submodule `https://github.com/meta-toolkit/meta-cmake.git`
[INFO] [stderr]     Updating git submodule `https://github.com/nanocurrency/diskhash.git`
[INFO] [stderr]     Updating git submodule `https://github.com/google/flatbuffers.git`
[INFO] [stderr]     Updating git submodule `https://github.com/google/googletest.git`
[INFO] [stderr]     Updating git submodule `https://github.com/miniupnp/miniupnp.git`
[INFO] [stderr]     Updating git submodule `https://github.com/nanocurrency/nano-pow-server.git`
[INFO] [stderr]     Updating git submodule `https://github.com/cryptocode/cpptoml.git`
[INFO] [stderr]     Updating git submodule `https://github.com/meta-toolkit/meta-cmake.git`
[INFO] [stderr]     Updating git submodule `https://github.com/google/googletest`
[INFO] [stderr]     Updating git submodule `https://github.com/gabime/spdlog.git`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ed25519-dalek-blake2b v1.0.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b4c8a1cadca3587af456b56629568ca056aef41d0e3e134658654129865881f
[INFO] running `Command { std: "docker" "start" "-a" "5b4c8a1cadca3587af456b56629568ca056aef41d0e3e134658654129865881f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b4c8a1cadca3587af456b56629568ca056aef41d0e3e134658654129865881f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b4c8a1cadca3587af456b56629568ca056aef41d0e3e134658654129865881f", kill_on_drop: false }`
[INFO] [stdout] 5b4c8a1cadca3587af456b56629568ca056aef41d0e3e134658654129865881f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1bcf058648d6207b007fb3b7490916c1e5d6f91b14ecb7f7dc29e86a40e309eb
[INFO] running `Command { std: "docker" "start" "-a" "1bcf058648d6207b007fb3b7490916c1e5d6f91b14ecb7f7dc29e86a40e309eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling libc v0.2.138
[INFO] [stderr]    Compiling cfg-if v1.0.0
[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 v1.0.105
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.47/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 crunchy v0.2.2
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.4.1
[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" "1bcf058648d6207b007fb3b7490916c1e5d6f91b14ecb7f7dc29e86a40e309eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bcf058648d6207b007fb3b7490916c1e5d6f91b14ecb7f7dc29e86a40e309eb", kill_on_drop: false }`
[INFO] [stdout] 1bcf058648d6207b007fb3b7490916c1e5d6f91b14ecb7f7dc29e86a40e309eb