[INFO] cloning repository https://github.com/666666t/rmatrix
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/666666t/rmatrix" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F666666t%2Frmatrix", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F666666t%2Frmatrix'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] daa8b452358ace59d322b145243ed0ed54d42276
[INFO] checking 666666t/rmatrix against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F666666t%2Frmatrix" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/666666t/rmatrix on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/666666t/rmatrix
[INFO] finished tweaking git repo https://github.com/666666t/rmatrix
[INFO] tweaked toml for git repo https://github.com/666666t/rmatrix written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/666666t/rmatrix already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6933c0a567c82e80296ee5aa1a4f37ca4d97bb6d17c279deb2ff4e52b7908c5b
[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" "6933c0a567c82e80296ee5aa1a4f37ca4d97bb6d17c279deb2ff4e52b7908c5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6933c0a567c82e80296ee5aa1a4f37ca4d97bb6d17c279deb2ff4e52b7908c5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6933c0a567c82e80296ee5aa1a4f37ca4d97bb6d17c279deb2ff4e52b7908c5b", kill_on_drop: false }`
[INFO] [stdout] 6933c0a567c82e80296ee5aa1a4f37ca4d97bb6d17c279deb2ff4e52b7908c5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--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] 2ae8c1d009d9f29eb6de1a12d57882b7972cd88d200bd20a9826d7c3590d80ad
[INFO] running `Command { std: "docker" "start" "-a" "2ae8c1d009d9f29eb6de1a12d57882b7972cd88d200bd20a9826d7c3590d80ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]    Compiling bitflags v1.2.0
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking crossterm_utils v0.3.1
[INFO] [stderr]     Checking crossterm_cursor v0.3.1
[INFO] [stderr]     Checking crossterm_screen v0.3.1
[INFO] [stderr]     Checking crossterm_style v0.5.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking crossterm_input v0.4.1
[INFO] [stderr]     Checking crossterm_terminal v0.3.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking crossterm v0.11.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking ctrlc v3.1.3
[INFO] [stderr]    Compiling derivative v1.0.3
[INFO] [stderr]    Compiling toml v0.5.3
[INFO] [stderr]    Compiling proc-macro-crate v0.1.4
[INFO] [stderr]    Compiling num_enum_derive v0.4.2
[INFO] [stderr]     Checking num_enum v0.4.2
[INFO] [stderr]     Checking rmatrix v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.89s
[INFO] running `Command { std: "docker" "inspect" "2ae8c1d009d9f29eb6de1a12d57882b7972cd88d200bd20a9826d7c3590d80ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ae8c1d009d9f29eb6de1a12d57882b7972cd88d200bd20a9826d7c3590d80ad", kill_on_drop: false }`
[INFO] [stdout] 2ae8c1d009d9f29eb6de1a12d57882b7972cd88d200bd20a9826d7c3590d80ad