[INFO] cloning repository https://github.com/richardfontana/mikva
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/richardfontana/mikva" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frichardfontana%2Fmikva", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frichardfontana%2Fmikva'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4715380cb34520d03f79174fdd1dc658bc440fd3
[INFO] checking richardfontana/mikva against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frichardfontana%2Fmikva" "/workspace/builds/worker-43/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-43/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/richardfontana/mikva on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/richardfontana/mikva
[INFO] finished tweaking git repo https://github.com/richardfontana/mikva
[INFO] tweaked toml for git repo https://github.com/richardfontana/mikva written to /workspace/builds/worker-43/source/Cargo.toml
[INFO] crate git repo https://github.com/richardfontana/mikva already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a1bbbe7298656a4ac8e974ea5f5ca1d9ab117e061e3a8ba2eeedf981c483cf68
[INFO] running `Command { std: "docker" "start" "-a" "a1bbbe7298656a4ac8e974ea5f5ca1d9ab117e061e3a8ba2eeedf981c483cf68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1bbbe7298656a4ac8e974ea5f5ca1d9ab117e061e3a8ba2eeedf981c483cf68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1bbbe7298656a4ac8e974ea5f5ca1d9ab117e061e3a8ba2eeedf981c483cf68", kill_on_drop: false }`
[INFO] [stdout] a1bbbe7298656a4ac8e974ea5f5ca1d9ab117e061e3a8ba2eeedf981c483cf68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c47fc22e3fa6a929d7aef8acf94cf5465afe4ffcdcf9b9467ec3b6d6ad69596d
[INFO] running `Command { std: "docker" "start" "-a" "c47fc22e3fa6a929d7aef8acf94cf5465afe4ffcdcf9b9467ec3b6d6ad69596d", kill_on_drop: false }`
[INFO] [stderr]     Checking mikva v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "c47fc22e3fa6a929d7aef8acf94cf5465afe4ffcdcf9b9467ec3b6d6ad69596d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c47fc22e3fa6a929d7aef8acf94cf5465afe4ffcdcf9b9467ec3b6d6ad69596d", kill_on_drop: false }`
[INFO] [stdout] c47fc22e3fa6a929d7aef8acf94cf5465afe4ffcdcf9b9467ec3b6d6ad69596d