[INFO] cloning repository https://github.com/Junscuzzy/rust-exercises
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Junscuzzy/rust-exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJunscuzzy%2Frust-exercises", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJunscuzzy%2Frust-exercises'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7d8ac151740db280df7dd1297cb2ffa796b1d26b
[INFO] testing Junscuzzy/rust-exercises against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJunscuzzy%2Frust-exercises" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Junscuzzy/rust-exercises 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/Junscuzzy/rust-exercises
[INFO] finished tweaking git repo https://github.com/Junscuzzy/rust-exercises
[INFO] tweaked toml for git repo https://github.com/Junscuzzy/rust-exercises written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/Junscuzzy/rust-exercises 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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 41295d9acb2f5b8b1c9ad05090d90a4ce1c548990107d9e49d258ccaa7c03aa4
[INFO] running `Command { std: "docker" "start" "-a" "41295d9acb2f5b8b1c9ad05090d90a4ce1c548990107d9e49d258ccaa7c03aa4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "41295d9acb2f5b8b1c9ad05090d90a4ce1c548990107d9e49d258ccaa7c03aa4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41295d9acb2f5b8b1c9ad05090d90a4ce1c548990107d9e49d258ccaa7c03aa4", kill_on_drop: false }`
[INFO] [stdout] 41295d9acb2f5b8b1c9ad05090d90a4ce1c548990107d9e49d258ccaa7c03aa4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] ab918f4892dbb94e98facaa0223a229619d1957f1759d591b604ecd79005f253
[INFO] running `Command { std: "docker" "start" "-a" "ab918f4892dbb94e98facaa0223a229619d1957f1759d591b604ecd79005f253", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling exercises v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.25s
[INFO] running `Command { std: "docker" "inspect" "ab918f4892dbb94e98facaa0223a229619d1957f1759d591b604ecd79005f253", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab918f4892dbb94e98facaa0223a229619d1957f1759d591b604ecd79005f253", kill_on_drop: false }`
[INFO] [stdout] ab918f4892dbb94e98facaa0223a229619d1957f1759d591b604ecd79005f253
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 8fff1be7d5955e6c5d905a1ac38b1ce22cec357bf62d06d5af7db83c39fee434
[INFO] running `Command { std: "docker" "start" "-a" "8fff1be7d5955e6c5d905a1ac38b1ce22cec357bf62d06d5af7db83c39fee434", kill_on_drop: false }`
[INFO] [stderr]    Compiling exercises v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "8fff1be7d5955e6c5d905a1ac38b1ce22cec357bf62d06d5af7db83c39fee434", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fff1be7d5955e6c5d905a1ac38b1ce22cec357bf62d06d5af7db83c39fee434", kill_on_drop: false }`
[INFO] [stdout] 8fff1be7d5955e6c5d905a1ac38b1ce22cec357bf62d06d5af7db83c39fee434
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] ab49a6b066a9e0d7085722e349c68cd76306abb9831134b0b2ad1b0789e4fd80
[INFO] running `Command { std: "docker" "start" "-a" "ab49a6b066a9e0d7085722e349c68cd76306abb9831134b0b2ad1b0789e4fd80", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/exercises-96883124911997e8)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[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" "ab49a6b066a9e0d7085722e349c68cd76306abb9831134b0b2ad1b0789e4fd80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab49a6b066a9e0d7085722e349c68cd76306abb9831134b0b2ad1b0789e4fd80", kill_on_drop: false }`
[INFO] [stdout] ab49a6b066a9e0d7085722e349c68cd76306abb9831134b0b2ad1b0789e4fd80