[INFO] cloning repository https://github.com/nixwork/rust-learning-refs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nixwork/rust-learning-refs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnixwork%2Frust-learning-refs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnixwork%2Frust-learning-refs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 482f01815a24bf80baa037577b2311f58cfff25f
[INFO] testing nixwork/rust-learning-refs against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnixwork%2Frust-learning-refs" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nixwork/rust-learning-refs on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nixwork/rust-learning-refs
[INFO] finished tweaking git repo https://github.com/nixwork/rust-learning-refs
[INFO] tweaked toml for git repo https://github.com/nixwork/rust-learning-refs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/nixwork/rust-learning-refs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 929ef686c116e5e1c9b53aebc2464e2886c0fde1ed71645eb064ff591cac359c
[INFO] running `Command { std: "docker" "start" "-a" "929ef686c116e5e1c9b53aebc2464e2886c0fde1ed71645eb064ff591cac359c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "929ef686c116e5e1c9b53aebc2464e2886c0fde1ed71645eb064ff591cac359c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "929ef686c116e5e1c9b53aebc2464e2886c0fde1ed71645eb064ff591cac359c", kill_on_drop: false }`
[INFO] [stdout] 929ef686c116e5e1c9b53aebc2464e2886c0fde1ed71645eb064ff591cac359c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d54e4b95b77a704df2b6474cbe2810aa55284dd3ac5378dfe7fd24299ec31707
[INFO] running `Command { std: "docker" "start" "-a" "d54e4b95b77a704df2b6474cbe2810aa55284dd3ac5378dfe7fd24299ec31707", kill_on_drop: false }`
[INFO] [stderr]    Compiling refs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "d54e4b95b77a704df2b6474cbe2810aa55284dd3ac5378dfe7fd24299ec31707", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d54e4b95b77a704df2b6474cbe2810aa55284dd3ac5378dfe7fd24299ec31707", kill_on_drop: false }`
[INFO] [stdout] d54e4b95b77a704df2b6474cbe2810aa55284dd3ac5378dfe7fd24299ec31707
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac0e7bf756cde6745a10ed152a123dd20687a3ac68270967960e473d55019f65
[INFO] running `Command { std: "docker" "start" "-a" "ac0e7bf756cde6745a10ed152a123dd20687a3ac68270967960e473d55019f65", kill_on_drop: false }`
[INFO] [stderr]    Compiling refs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "ac0e7bf756cde6745a10ed152a123dd20687a3ac68270967960e473d55019f65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac0e7bf756cde6745a10ed152a123dd20687a3ac68270967960e473d55019f65", kill_on_drop: false }`
[INFO] [stdout] ac0e7bf756cde6745a10ed152a123dd20687a3ac68270967960e473d55019f65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7ea1728e89d43abede1fd57e5d67185f8aa7cd4c9753b815c595a90e21063186
[INFO] running `Command { std: "docker" "start" "-a" "7ea1728e89d43abede1fd57e5d67185f8aa7cd4c9753b815c595a90e21063186", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/refs-6510c892f46f970e)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7ea1728e89d43abede1fd57e5d67185f8aa7cd4c9753b815c595a90e21063186", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ea1728e89d43abede1fd57e5d67185f8aa7cd4c9753b815c595a90e21063186", kill_on_drop: false }`
[INFO] [stdout] 7ea1728e89d43abede1fd57e5d67185f8aa7cd4c9753b815c595a90e21063186