[INFO] cloning repository https://github.com/Adorine/exercise
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Adorine/exercise" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdorine%2Fexercise", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdorine%2Fexercise'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5311b8fb39ed1e550388a5ed5a2a4c5c6bd9c392
[INFO] testing Adorine/exercise against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdorine%2Fexercise" "/workspace/builds/worker-29/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-29/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Adorine/exercise on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-29/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" "+1.60.0" "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-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 124cd8b3dec41d76698ce145d0cde9a7c978af6e616d1f4545fc629a7c267795
[INFO] running `Command { std: "docker" "start" "-a" "124cd8b3dec41d76698ce145d0cde9a7c978af6e616d1f4545fc629a7c267795", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "124cd8b3dec41d76698ce145d0cde9a7c978af6e616d1f4545fc629a7c267795", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "124cd8b3dec41d76698ce145d0cde9a7c978af6e616d1f4545fc629a7c267795", kill_on_drop: false }`
[INFO] [stdout] 124cd8b3dec41d76698ce145d0cde9a7c978af6e616d1f4545fc629a7c267795
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] add3394f32a2ae6e74529397d669b29ba8f3a6121d84bdff918c4d2706fc5692
[INFO] running `Command { std: "docker" "start" "-a" "add3394f32a2ae6e74529397d669b29ba8f3a6121d84bdff918c4d2706fc5692", kill_on_drop: false }`
[INFO] [stderr]    Compiling substrate_exercise4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "add3394f32a2ae6e74529397d669b29ba8f3a6121d84bdff918c4d2706fc5692", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "add3394f32a2ae6e74529397d669b29ba8f3a6121d84bdff918c4d2706fc5692", kill_on_drop: false }`
[INFO] [stdout] add3394f32a2ae6e74529397d669b29ba8f3a6121d84bdff918c4d2706fc5692
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a43ec3c50cc111a3f5b739cc65845f61973933dfc13dad4b7eaff0428b3aefe6
[INFO] running `Command { std: "docker" "start" "-a" "a43ec3c50cc111a3f5b739cc65845f61973933dfc13dad4b7eaff0428b3aefe6", kill_on_drop: false }`
[INFO] [stderr]    Compiling substrate_exercise4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "a43ec3c50cc111a3f5b739cc65845f61973933dfc13dad4b7eaff0428b3aefe6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a43ec3c50cc111a3f5b739cc65845f61973933dfc13dad4b7eaff0428b3aefe6", kill_on_drop: false }`
[INFO] [stdout] a43ec3c50cc111a3f5b739cc65845f61973933dfc13dad4b7eaff0428b3aefe6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 33e2e746eaa1a79d9c4fb45df42f0b165fb5343db6d6a5da2a21ce76137bc350
[INFO] running `Command { std: "docker" "start" "-a" "33e2e746eaa1a79d9c4fb45df42f0b165fb5343db6d6a5da2a21ce76137bc350", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/substrate_exercise4-91a54fd8aef7ab90)
[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" "33e2e746eaa1a79d9c4fb45df42f0b165fb5343db6d6a5da2a21ce76137bc350", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33e2e746eaa1a79d9c4fb45df42f0b165fb5343db6d6a5da2a21ce76137bc350", kill_on_drop: false }`
[INFO] [stdout] 33e2e746eaa1a79d9c4fb45df42f0b165fb5343db6d6a5da2a21ce76137bc350