[INFO] cloning repository https://github.com/sandmuel/ren_nodes
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sandmuel/ren_nodes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsandmuel%2Fren_nodes", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsandmuel%2Fren_nodes'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 00a1e8bb910ea3e031da4f3791409b8d52b6bd16
[INFO] checking sandmuel/ren_nodes against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsandmuel%2Fren_nodes" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sandmuel/ren_nodes
[INFO] finished tweaking git repo https://github.com/sandmuel/ren_nodes
[INFO] tweaked toml for git repo https://github.com/sandmuel/ren_nodes written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sandmuel/ren_nodes on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sandmuel/ren_nodes 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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1889662195a70f284cce9b9b6aa25f14a81e18d6ecd23bbda7e27dfb967530d4
[INFO] running `Command { std: "docker" "start" "-a" "1889662195a70f284cce9b9b6aa25f14a81e18d6ecd23bbda7e27dfb967530d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1889662195a70f284cce9b9b6aa25f14a81e18d6ecd23bbda7e27dfb967530d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1889662195a70f284cce9b9b6aa25f14a81e18d6ecd23bbda7e27dfb967530d4", kill_on_drop: false }`
[INFO] [stdout] 1889662195a70f284cce9b9b6aa25f14a81e18d6ecd23bbda7e27dfb967530d4
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 14c1684a200d5b478fd35ec9d4ff04c1f0a1071d4a85ebb631bf04b7afb0a6b2
[INFO] running `Command { std: "docker" "start" "-a" "14c1684a200d5b478fd35ec9d4ff04c1f0a1071d4a85ebb631bf04b7afb0a6b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]     Checking rustc-hash v2.1.1
[INFO] [stderr]     Checking boxcar v0.2.14
[INFO] [stderr]    Compiling slotmap v1.1.1
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling necs_macros v0.1.0 (https://github.com/me-self/necs#7600e788)
[INFO] [stderr]     Checking necs_internal v0.1.0 (https://github.com/me-self/necs#7600e788)
[INFO] [stderr]     Checking necs v0.1.0 (https://github.com/me-self/necs#7600e788)
[INFO] [stderr]     Checking ren_nodes v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(specialization)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]   = help: consider using `min_specialization` instead, which is more stable and complete
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(specialization)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]   = help: consider using `min_specialization` instead, which is more stable and complete
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.57s
[INFO] running `Command { std: "docker" "inspect" "14c1684a200d5b478fd35ec9d4ff04c1f0a1071d4a85ebb631bf04b7afb0a6b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14c1684a200d5b478fd35ec9d4ff04c1f0a1071d4a85ebb631bf04b7afb0a6b2", kill_on_drop: false }`
[INFO] [stdout] 14c1684a200d5b478fd35ec9d4ff04c1f0a1071d4a85ebb631bf04b7afb0a6b2
