[INFO] cloning repository https://github.com/DownsizeEngineering/tRust_problems
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DownsizeEngineering/tRust_problems" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDownsizeEngineering%2FtRust_problems", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDownsizeEngineering%2FtRust_problems'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7cac01acbb9e8d0310f635bc16111fee6d4bbcbc
[INFO] checking DownsizeEngineering/tRust_problems against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDownsizeEngineering%2FtRust_problems" "/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/DownsizeEngineering/tRust_problems on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DownsizeEngineering/tRust_problems
[INFO] finished tweaking git repo https://github.com/DownsizeEngineering/tRust_problems
[INFO] tweaked toml for git repo https://github.com/DownsizeEngineering/tRust_problems written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/DownsizeEngineering/tRust_problems already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d3cb9db604e2a09ba8a87119be734d7709fa196a26d2fe73c60449cccc2537bd
[INFO] running `Command { std: "docker" "start" "-a" "d3cb9db604e2a09ba8a87119be734d7709fa196a26d2fe73c60449cccc2537bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3cb9db604e2a09ba8a87119be734d7709fa196a26d2fe73c60449cccc2537bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3cb9db604e2a09ba8a87119be734d7709fa196a26d2fe73c60449cccc2537bd", kill_on_drop: false }`
[INFO] [stdout] d3cb9db604e2a09ba8a87119be734d7709fa196a26d2fe73c60449cccc2537bd
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 43bbc79219236f8cb519c089d2651badf0d2053a5972d3f8f8d405a745f6f334
[INFO] running `Command { std: "docker" "start" "-a" "43bbc79219236f8cb519c089d2651badf0d2053a5972d3f8f8d405a745f6f334", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking t_rust_problems v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "43bbc79219236f8cb519c089d2651badf0d2053a5972d3f8f8d405a745f6f334", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43bbc79219236f8cb519c089d2651badf0d2053a5972d3f8f8d405a745f6f334", kill_on_drop: false }`
[INFO] [stdout] 43bbc79219236f8cb519c089d2651badf0d2053a5972d3f8f8d405a745f6f334