[INFO] cloning repository https://github.com/mob-rs/mob
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mob-rs/mob" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmob-rs%2Fmob", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmob-rs%2Fmob'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f9d10af4ffbe514c542f8964747b24f9c7089a16
[INFO] testing mob-rs/mob against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmob-rs%2Fmob" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mob-rs/mob 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] started tweaking git repo https://github.com/mob-rs/mob
[INFO] finished tweaking git repo https://github.com/mob-rs/mob
[INFO] tweaked toml for git repo https://github.com/mob-rs/mob written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/mob-rs/mob 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 3a1028cf3d12d727bbdf68e66db5b99b1167aa1fc5e04c967d33fb3281e20834
[INFO] running `Command { std: "docker" "start" "-a" "3a1028cf3d12d727bbdf68e66db5b99b1167aa1fc5e04c967d33fb3281e20834", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a1028cf3d12d727bbdf68e66db5b99b1167aa1fc5e04c967d33fb3281e20834", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a1028cf3d12d727bbdf68e66db5b99b1167aa1fc5e04c967d33fb3281e20834", kill_on_drop: false }`
[INFO] [stdout] 3a1028cf3d12d727bbdf68e66db5b99b1167aa1fc5e04c967d33fb3281e20834
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 7910f310be6449aa9f17a7b910445bbcc20795ac93410b80ac9b4a4d79d386ed
[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" "7910f310be6449aa9f17a7b910445bbcc20795ac93410b80ac9b4a4d79d386ed", kill_on_drop: false }`
[INFO] [stderr] warning: package replacement is not used: https://github.com/rust-lang/crates.io-index#mob_server:0.4.1
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `main` in package `mob_server v0.4.3 (/opt/rustwide/workdir/server)` has the same output filename as the bin target `main` in package `mob v0.4.3 (/opt/rustwide/workdir/cli)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/main
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr]    Compiling lazy_static v0.2.8
[INFO] [stderr]    Compiling version_check v0.1.3
[INFO] [stderr]    Compiling byteorder v1.1.0
[INFO] [stderr]    Compiling matches v0.1.6
[INFO] [stderr]    Compiling either v1.1.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.5
[INFO] [stderr]    Compiling scopeguard v0.3.2
[INFO] [stderr]    Compiling rayon-core v1.2.1
[INFO] [stderr]    Compiling percent-encoding v1.0.0
[INFO] [stderr]    Compiling log v0.3.8
[INFO] [stderr]    Compiling futures v0.1.16
[INFO] [stderr]    Compiling safemem v0.2.0
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling yansi v0.3.4
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling httparse v1.2.3
[INFO] [stderr]    Compiling pq-sys v0.4.4
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]    Compiling untrusted v0.5.1
[INFO] [stderr]    Compiling antidote v1.0.0
[INFO] [stdout] error[E0635]: unknown feature `const_atomic_bool_new`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/yansi-0.3.4/src/lib.rs:1:40
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(feature="nightly", feature(const_atomic_bool_new))]
[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 `yansi` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "7910f310be6449aa9f17a7b910445bbcc20795ac93410b80ac9b4a4d79d386ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7910f310be6449aa9f17a7b910445bbcc20795ac93410b80ac9b4a4d79d386ed", kill_on_drop: false }`
[INFO] [stdout] 7910f310be6449aa9f17a7b910445bbcc20795ac93410b80ac9b4a4d79d386ed