[INFO] cloning repository https://github.com/speederking07/Adaptive_arithmetic_coding_with_scaling
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/speederking07/Adaptive_arithmetic_coding_with_scaling" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspeederking07%2FAdaptive_arithmetic_coding_with_scaling", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspeederking07%2FAdaptive_arithmetic_coding_with_scaling'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cb0d2fb6a926207e2805b22772ec0fad2dd7f62e
[INFO] checking speederking07/Adaptive_arithmetic_coding_with_scaling against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspeederking07%2FAdaptive_arithmetic_coding_with_scaling" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/speederking07/Adaptive_arithmetic_coding_with_scaling on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/speederking07/Adaptive_arithmetic_coding_with_scaling
[INFO] finished tweaking git repo https://github.com/speederking07/Adaptive_arithmetic_coding_with_scaling
[INFO] tweaked toml for git repo https://github.com/speederking07/Adaptive_arithmetic_coding_with_scaling written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/speederking07/Adaptive_arithmetic_coding_with_scaling already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 142211b031c1ea6e5020fb3df11fd6e22acdcee41643221016d3201fff1d90d3
[INFO] running `Command { std: "docker" "start" "-a" "142211b031c1ea6e5020fb3df11fd6e22acdcee41643221016d3201fff1d90d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "142211b031c1ea6e5020fb3df11fd6e22acdcee41643221016d3201fff1d90d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "142211b031c1ea6e5020fb3df11fd6e22acdcee41643221016d3201fff1d90d3", kill_on_drop: false }`
[INFO] [stdout] 142211b031c1ea6e5020fb3df11fd6e22acdcee41643221016d3201fff1d90d3
[ERROR] this task or one of its parent failed!
[ERROR] command failed: exit status: 1
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking speederking07/Adaptive_arithmetic_coding_with_scaling against try#72eda894eb3548c7ba774079ce0afab42958d4ee for pr-121848-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspeederking07%2FAdaptive_arithmetic_coding_with_scaling" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/speederking07/Adaptive_arithmetic_coding_with_scaling on toolchain 72eda894eb3548c7ba774079ce0afab42958d4ee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/speederking07/Adaptive_arithmetic_coding_with_scaling
[INFO] finished tweaking git repo https://github.com/speederking07/Adaptive_arithmetic_coding_with_scaling
[INFO] tweaked toml for git repo https://github.com/speederking07/Adaptive_arithmetic_coding_with_scaling written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/speederking07/Adaptive_arithmetic_coding_with_scaling already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3248acf6b71bbac506da073f6539cf0b117842ccb4bd3780fc1702efc56bc1ae
[INFO] running `Command { std: "docker" "start" "-a" "3248acf6b71bbac506da073f6539cf0b117842ccb4bd3780fc1702efc56bc1ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3248acf6b71bbac506da073f6539cf0b117842ccb4bd3780fc1702efc56bc1ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3248acf6b71bbac506da073f6539cf0b117842ccb4bd3780fc1702efc56bc1ae", kill_on_drop: false }`
[INFO] [stdout] 3248acf6b71bbac506da073f6539cf0b117842ccb4bd3780fc1702efc56bc1ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e7316352c126c3bc9b5914445d4da26bd15b831f79df6f76176e07f91002950
[INFO] running `Command { std: "docker" "start" "-a" "0e7316352c126c3bc9b5914445d4da26bd15b831f79df6f76176e07f91002950", kill_on_drop: false }`
[INFO] [stderr]     Checking arithmetic_coder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "0e7316352c126c3bc9b5914445d4da26bd15b831f79df6f76176e07f91002950", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e7316352c126c3bc9b5914445d4da26bd15b831f79df6f76176e07f91002950", kill_on_drop: false }`
[INFO] [stdout] 0e7316352c126c3bc9b5914445d4da26bd15b831f79df6f76176e07f91002950