[INFO] cloning repository https://github.com/the8472/fastar
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/the8472/fastar" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthe8472%2Ffastar", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthe8472%2Ffastar'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d1817ef04404e096326dc2be92705ff7410ef382
[INFO] checking the8472/fastar against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthe8472%2Ffastar" "/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/the8472/fastar on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/the8472/fastar
[INFO] finished tweaking git repo https://github.com/the8472/fastar
[INFO] tweaked toml for git repo https://github.com/the8472/fastar written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/the8472/fastar already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded reapfrog v0.2.0
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 35df76ae4d94692a9bbd087b41447ed0a3c9413e75527ed9f36614c29db94e9f
[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" "35df76ae4d94692a9bbd087b41447ed0a3c9413e75527ed9f36614c29db94e9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "35df76ae4d94692a9bbd087b41447ed0a3c9413e75527ed9f36614c29db94e9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35df76ae4d94692a9bbd087b41447ed0a3c9413e75527ed9f36614c29db94e9f", kill_on_drop: false }`
[INFO] [stdout] 35df76ae4d94692a9bbd087b41447ed0a3c9413e75527ed9f36614c29db94e9f
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e77024f7611a629e21ff6e1869dbc8cd1a41b25ba787a5d304b6c91892263d2
[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" "3e77024f7611a629e21ff6e1869dbc8cd1a41b25ba787a5d304b6c91892263d2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.90
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking uuid v0.3.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling case v0.1.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling derive-error v0.0.5
[INFO] [stderr]     Checking minilzo-sys v0.1.0
[INFO] [stderr]     Checking nix v0.8.1
[INFO] [stderr]     Checking xattr v0.2.2
[INFO] [stderr]     Checking filetime v0.2.14
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking mnt v0.3.1
[INFO] [stderr]     Checking reapfrog v0.2.0
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking minilzo v0.1.2
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]     Checking tar v0.4.33
[INFO] [stderr]     Checking btrfs2 v1.2.2
[INFO] [stderr]     Checking platter-walk v0.1.3
[INFO] [stderr]     Checking fastar v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.51s
[INFO] running `Command { std: "docker" "inspect" "3e77024f7611a629e21ff6e1869dbc8cd1a41b25ba787a5d304b6c91892263d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e77024f7611a629e21ff6e1869dbc8cd1a41b25ba787a5d304b6c91892263d2", kill_on_drop: false }`
[INFO] [stdout] 3e77024f7611a629e21ff6e1869dbc8cd1a41b25ba787a5d304b6c91892263d2