[INFO] cloning repository https://github.com/JCapucho/cargo-nix-bug
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JCapucho/cargo-nix-bug" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJCapucho%2Fcargo-nix-bug", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJCapucho%2Fcargo-nix-bug'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 056c94e010dfdb140120003fa6e90058a8c7e0a0
[INFO] testing JCapucho/cargo-nix-bug against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJCapucho%2Fcargo-nix-bug" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JCapucho/cargo-nix-bug on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-11/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/JCapucho/cargo-nix-bug
[INFO] finished tweaking git repo https://github.com/JCapucho/cargo-nix-bug
[INFO] tweaked toml for git repo https://github.com/JCapucho/cargo-nix-bug written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/JCapucho/cargo-nix-bug already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d3f8475e28f2683705a04c0b9113b5d67ea5a9edaabe92b64669e4b137cc8e9a
[INFO] running `Command { std: "docker" "start" "-a" "d3f8475e28f2683705a04c0b9113b5d67ea5a9edaabe92b64669e4b137cc8e9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3f8475e28f2683705a04c0b9113b5d67ea5a9edaabe92b64669e4b137cc8e9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3f8475e28f2683705a04c0b9113b5d67ea5a9edaabe92b64669e4b137cc8e9a", kill_on_drop: false }`
[INFO] [stdout] d3f8475e28f2683705a04c0b9113b5d67ea5a9edaabe92b64669e4b137cc8e9a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7cf1a8c4aa0247fe7ef8b294e7b01cf21a6198553a6267fc0d1cdcc8cf0fe6f9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7cf1a8c4aa0247fe7ef8b294e7b01cf21a6198553a6267fc0d1cdcc8cf0fe6f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling nix-bug v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0635]: unknown feature `try_trait`
[INFO] [stdout]  --> src/main.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature( try_trait)]
[INFO] [stdout]   |             ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 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 `nix-bug` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "7cf1a8c4aa0247fe7ef8b294e7b01cf21a6198553a6267fc0d1cdcc8cf0fe6f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cf1a8c4aa0247fe7ef8b294e7b01cf21a6198553a6267fc0d1cdcc8cf0fe6f9", kill_on_drop: false }`
[INFO] [stdout] 7cf1a8c4aa0247fe7ef8b294e7b01cf21a6198553a6267fc0d1cdcc8cf0fe6f9