[INFO] cloning repository https://github.com/chenshanzi/rust-learn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chenshanzi/rust-learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchenshanzi%2Frust-learn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchenshanzi%2Frust-learn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 94ff7ad6ab369dc1e0f9a73bc7138f100b3d6f9c
[INFO] testing chenshanzi/rust-learn against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchenshanzi%2Frust-learn" "/workspace/builds/worker-27/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-27/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chenshanzi/rust-learn 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/chenshanzi/rust-learn
[INFO] finished tweaking git repo https://github.com/chenshanzi/rust-learn
[INFO] tweaked toml for git repo https://github.com/chenshanzi/rust-learn written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] crate git repo https://github.com/chenshanzi/rust-learn 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-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] d817d2caea9aa677b3630dff3b3812518833cc60375c8d0308f51d9cf6a6fb4c
[INFO] running `Command { std: "docker" "start" "-a" "d817d2caea9aa677b3630dff3b3812518833cc60375c8d0308f51d9cf6a6fb4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d817d2caea9aa677b3630dff3b3812518833cc60375c8d0308f51d9cf6a6fb4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d817d2caea9aa677b3630dff3b3812518833cc60375c8d0308f51d9cf6a6fb4c", kill_on_drop: false }`
[INFO] [stdout] d817d2caea9aa677b3630dff3b3812518833cc60375c8d0308f51d9cf6a6fb4c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] ff48abb1858a14f84a8ff39e9a7d5ab173b448d9b3fa359868743947d395494e
[INFO] running `Command { std: "docker" "start" "-a" "ff48abb1858a14f84a8ff39e9a7d5ab173b448d9b3fa359868743947d395494e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-learn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.72s
[INFO] running `Command { std: "docker" "inspect" "ff48abb1858a14f84a8ff39e9a7d5ab173b448d9b3fa359868743947d395494e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff48abb1858a14f84a8ff39e9a7d5ab173b448d9b3fa359868743947d395494e", kill_on_drop: false }`
[INFO] [stdout] ff48abb1858a14f84a8ff39e9a7d5ab173b448d9b3fa359868743947d395494e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 612059aa342ff1a2cb11ff66a54c8d9b5a09f613d976c1bc2b18a67e582c3a6d
[INFO] running `Command { std: "docker" "start" "-a" "612059aa342ff1a2cb11ff66a54c8d9b5a09f613d976c1bc2b18a67e582c3a6d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-learn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `Command { std: "docker" "inspect" "612059aa342ff1a2cb11ff66a54c8d9b5a09f613d976c1bc2b18a67e582c3a6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "612059aa342ff1a2cb11ff66a54c8d9b5a09f613d976c1bc2b18a67e582c3a6d", kill_on_drop: false }`
[INFO] [stdout] 612059aa342ff1a2cb11ff66a54c8d9b5a09f613d976c1bc2b18a67e582c3a6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 2a8dc08c1d5c0f05b0e0963cbda88e750d0409b299506dc0180cf43696abfa96
[INFO] running `Command { std: "docker" "start" "-a" "2a8dc08c1d5c0f05b0e0963cbda88e750d0409b299506dc0180cf43696abfa96", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.19s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_learn-75888af6c88121b9)
[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" "2a8dc08c1d5c0f05b0e0963cbda88e750d0409b299506dc0180cf43696abfa96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a8dc08c1d5c0f05b0e0963cbda88e750d0409b299506dc0180cf43696abfa96", kill_on_drop: false }`
[INFO] [stdout] 2a8dc08c1d5c0f05b0e0963cbda88e750d0409b299506dc0180cf43696abfa96