[INFO] cloning repository https://github.com/cyphernet-dao/ntls
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cyphernet-dao/ntls" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcyphernet-dao%2Fntls", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcyphernet-dao%2Fntls'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 399f3d876bd64a25d81e6b98ed1aa44962b4865e
[INFO] checking cyphernet-dao/ntls against try#dd2d87b6cc31907ae305875eb6be399783dc0256 for pr-143929
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcyphernet-dao%2Fntls" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-0-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/cyphernet-dao/ntls
[INFO] finished tweaking git repo https://github.com/cyphernet-dao/ntls
[INFO] tweaked toml for git repo https://github.com/cyphernet-dao/ntls written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cyphernet-dao/ntls on toolchain dd2d87b6cc31907ae305875eb6be399783dc0256
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/cyphernet-dao/ntls 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" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "fetch" "--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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded amplify_derive v2.11.2
[INFO] [stderr]   Downloaded ed25519-compact v1.0.15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 24d3dd5f0ef2c752c7546b751f9e472958d866424d518bad2c05d8b2bbef99eb
[INFO] running `Command { std: "docker" "start" "-a" "24d3dd5f0ef2c752c7546b751f9e472958d866424d518bad2c05d8b2bbef99eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24d3dd5f0ef2c752c7546b751f9e472958d866424d518bad2c05d8b2bbef99eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24d3dd5f0ef2c752c7546b751f9e472958d866424d518bad2c05d8b2bbef99eb", kill_on_drop: false }`
[INFO] [stdout] 24d3dd5f0ef2c752c7546b751f9e472958d866424d518bad2c05d8b2bbef99eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b3bd8c570939b564ff1b8f82c4ce68cec818cc290f8596d1e0d3f3056e4fbbd7
[INFO] running `Command { std: "docker" "start" "-a" "b3bd8c570939b564ff1b8f82c4ce68cec818cc290f8596d1e0d3f3056e4fbbd7", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]    Compiling syn v1.0.101
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.134
[INFO] [stderr]     Checking cpufeatures v0.2.5
[INFO] [stderr]     Checking zeroize v1.5.7
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking amplify_num v0.4.1
[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-macro2-1.0.46/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] [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" "b3bd8c570939b564ff1b8f82c4ce68cec818cc290f8596d1e0d3f3056e4fbbd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3bd8c570939b564ff1b8f82c4ce68cec818cc290f8596d1e0d3f3056e4fbbd7", kill_on_drop: false }`
[INFO] [stdout] b3bd8c570939b564ff1b8f82c4ce68cec818cc290f8596d1e0d3f3056e4fbbd7