[INFO] updating cached repository https://github.com/Adorine/exercise
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5311b8fb39ed1e550388a5ed5a2a4c5c6bd9c392
[INFO] testing Adorine/exercise against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdorine%2Fexercise" "/workspace/builds/worker-103/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-103/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Adorine/exercise on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Adorine/exercise
[INFO] finished tweaking git repo https://github.com/Adorine/exercise
[INFO] tweaked toml for git repo https://github.com/Adorine/exercise written to /workspace/builds/worker-103/source/Cargo.toml
[INFO] crate git repo https://github.com/Adorine/exercise already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 46a4dc95e037d7d66c6308a28b46c921cf5b8f0a9497a9bc0e22e50a9b6885dc
[INFO] running `Command { std: "docker" "start" "-a" "46a4dc95e037d7d66c6308a28b46c921cf5b8f0a9497a9bc0e22e50a9b6885dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46a4dc95e037d7d66c6308a28b46c921cf5b8f0a9497a9bc0e22e50a9b6885dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46a4dc95e037d7d66c6308a28b46c921cf5b8f0a9497a9bc0e22e50a9b6885dc", kill_on_drop: false }`
[INFO] [stdout] 46a4dc95e037d7d66c6308a28b46c921cf5b8f0a9497a9bc0e22e50a9b6885dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10cd24a3ef239fa0fe2f16f41861fa8ca65eef87f7966ca182839652ecfae271
[INFO] running `Command { std: "docker" "start" "-a" "10cd24a3ef239fa0fe2f16f41861fa8ca65eef87f7966ca182839652ecfae271", kill_on_drop: false }`
[INFO] [stderr]    Compiling substrate_exercise4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "10cd24a3ef239fa0fe2f16f41861fa8ca65eef87f7966ca182839652ecfae271", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10cd24a3ef239fa0fe2f16f41861fa8ca65eef87f7966ca182839652ecfae271", kill_on_drop: false }`
[INFO] [stdout] 10cd24a3ef239fa0fe2f16f41861fa8ca65eef87f7966ca182839652ecfae271
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0616e7b672d75482a5c82b3f23cb7141a307b9e6aa02e35072288c8dd8edb53d
[INFO] running `Command { std: "docker" "start" "-a" "0616e7b672d75482a5c82b3f23cb7141a307b9e6aa02e35072288c8dd8edb53d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling substrate_exercise4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "0616e7b672d75482a5c82b3f23cb7141a307b9e6aa02e35072288c8dd8edb53d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0616e7b672d75482a5c82b3f23cb7141a307b9e6aa02e35072288c8dd8edb53d", kill_on_drop: false }`
[INFO] [stdout] 0616e7b672d75482a5c82b3f23cb7141a307b9e6aa02e35072288c8dd8edb53d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8825a70356865b81fdf145851abedf09fe13267b2165a2f977f7b4fad67b4372
[INFO] running `Command { std: "docker" "start" "-a" "8825a70356865b81fdf145851abedf09fe13267b2165a2f977f7b4fad67b4372", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.25s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/substrate_exercise4-9a7620f2a538f2ea)
[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" "8825a70356865b81fdf145851abedf09fe13267b2165a2f977f7b4fad67b4372", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8825a70356865b81fdf145851abedf09fe13267b2165a2f977f7b4fad67b4372", kill_on_drop: false }`
[INFO] [stdout] 8825a70356865b81fdf145851abedf09fe13267b2165a2f977f7b4fad67b4372