[INFO] cloning repository https://github.com/FelixMo42/incremental_parser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FelixMo42/incremental_parser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFelixMo42%2Fincremental_parser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFelixMo42%2Fincremental_parser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 64f7549a6b9e453ca6adcc75d97d331865f7cb5e
[INFO] testing FelixMo42/incremental_parser against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFelixMo42%2Fincremental_parser" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FelixMo42/incremental_parser on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FelixMo42/incremental_parser
[INFO] finished tweaking git repo https://github.com/FelixMo42/incremental_parser
[INFO] tweaked toml for git repo https://github.com/FelixMo42/incremental_parser written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/FelixMo42/incremental_parser already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 89fb76d454ecce2923370fbc206aa21911d37f69dc4f9ff59c01ba375b2d90a2
[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" "89fb76d454ecce2923370fbc206aa21911d37f69dc4f9ff59c01ba375b2d90a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89fb76d454ecce2923370fbc206aa21911d37f69dc4f9ff59c01ba375b2d90a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89fb76d454ecce2923370fbc206aa21911d37f69dc4f9ff59c01ba375b2d90a2", kill_on_drop: false }`
[INFO] [stdout] 89fb76d454ecce2923370fbc206aa21911d37f69dc4f9ff59c01ba375b2d90a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", 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] e2557cfd5c2e01b0fbcb53e1e199913c68c207072ffbe20480c2d2cc33ed4557
[INFO] running `Command { std: "docker" "start" "-a" "e2557cfd5c2e01b0fbcb53e1e199913c68c207072ffbe20480c2d2cc33ed4557", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling termion v1.5.6
[INFO] [stderr]    Compiling tblit v0.2.0 (https://github.com/FelixMo42/tblit#cbbab216)
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stdout] error[E0635]: unknown feature `step_trait_ext`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/tblit-71e8387ca6cbd50c/cbbab21/src/lib.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(step_trait, step_trait_ext)]
[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 `tblit` 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" "e2557cfd5c2e01b0fbcb53e1e199913c68c207072ffbe20480c2d2cc33ed4557", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2557cfd5c2e01b0fbcb53e1e199913c68c207072ffbe20480c2d2cc33ed4557", kill_on_drop: false }`
[INFO] [stdout] e2557cfd5c2e01b0fbcb53e1e199913c68c207072ffbe20480c2d2cc33ed4557