[INFO] cloning repository https://github.com/tomhoule/rocket-experiment
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tomhoule/rocket-experiment" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomhoule%2Frocket-experiment", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomhoule%2Frocket-experiment'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] df419f9df748831ea6ef2c1480bbb640d3372589
[INFO] checking tomhoule/rocket-experiment against try#894d32a5432c6a6461bb2aac7c3d5f2e87dce83f for pr-77015
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomhoule%2Frocket-experiment" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tomhoule/rocket-experiment on toolchain 894d32a5432c6a6461bb2aac7c3d5f2e87dce83f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tomhoule/rocket-experiment
[INFO] finished tweaking git repo https://github.com/tomhoule/rocket-experiment
[INFO] tweaked toml for git repo https://github.com/tomhoule/rocket-experiment written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/tomhoule/rocket-experiment already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v0.1.10
[INFO] [stderr]   Downloaded pulldown-cmark v0.0.15
[INFO] [stderr]   Downloaded futures-await-synom v0.12.0
[INFO] [stderr]   Downloaded fantoccini v0.7.3
[INFO] [stderr]   Downloaded if_chain v0.1.2
[INFO] [stderr]   Downloaded futures-await-syn v0.12.0
[INFO] [stderr]   Downloaded validator v0.6.3
[INFO] [stderr]   Downloaded migrations_internals v1.1.0
[INFO] [stderr]   Downloaded futures-await-quote v0.4.0
[INFO] [stderr]   Downloaded futures-await-async-macro v0.1.1
[INFO] [stderr]   Downloaded luhnmod10 v1.1.0
[INFO] [stderr]   Downloaded futures-await-await-macro v0.1.0
[INFO] [stderr]   Downloaded fluent v0.1.2
[INFO] [stderr]   Downloaded diesel_migrations v1.1.0
[INFO] [stderr]   Downloaded handlebars v0.29.1
[INFO] [stderr]   Downloaded futures-await v0.1.0
[INFO] [stderr]   Downloaded card-validate v2.1.5
[INFO] [stderr]   Downloaded inlinable_string v0.1.9
[INFO] [stderr]   Downloaded migrations_macros v1.1.0
[INFO] [stderr]   Downloaded validator_derive v0.6.1
[INFO] [stderr]   Downloaded webdriver v0.33.0
[INFO] [stderr]   Downloaded fluent-locale v0.3.0
[INFO] [stderr]   Downloaded rocket_cors v0.2.1
[INFO] [stderr]   Downloaded handlebars v0.27.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0f179218bbee273477e3ad89aae1157566d93a67629fbffdbba24c74ce0f774e
[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" "0f179218bbee273477e3ad89aae1157566d93a67629fbffdbba24c74ce0f774e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f179218bbee273477e3ad89aae1157566d93a67629fbffdbba24c74ce0f774e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f179218bbee273477e3ad89aae1157566d93a67629fbffdbba24c74ce0f774e", kill_on_drop: false }`
[INFO] [stdout] 0f179218bbee273477e3ad89aae1157566d93a67629fbffdbba24c74ce0f774e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2de735d0608b970086038560ee757ff435e6ca5593a8f54f804d5338913179d
[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" "b2de735d0608b970086038560ee757ff435e6ca5593a8f54f804d5338913179d", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.36
[INFO] [stderr]     Checking byteorder v1.2.1
[INFO] [stderr]     Checking serde v1.0.27
[INFO] [stderr]    Compiling cc v1.0.4
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]     Checking num-traits v0.1.42
[INFO] [stderr]    Compiling either v1.4.0
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]    Compiling rayon-core v1.3.0
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]    Compiling yansi v0.3.4
[INFO] [stderr]     Checking futures v0.1.18
[INFO] [stderr]     Checking httparse v1.2.4
[INFO] [stderr]     Checking regex-syntax v0.4.2
[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`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "b2de735d0608b970086038560ee757ff435e6ca5593a8f54f804d5338913179d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2de735d0608b970086038560ee757ff435e6ca5593a8f54f804d5338913179d", kill_on_drop: false }`
[INFO] [stdout] b2de735d0608b970086038560ee757ff435e6ca5593a8f54f804d5338913179d