[INFO] cloning repository https://github.com/heavypackets/rust-iterator-emoji
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/heavypackets/rust-iterator-emoji" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fheavypackets%2Frust-iterator-emoji", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fheavypackets%2Frust-iterator-emoji'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1616bec1b7b143eb70a4a48f614c45f4b5480213
[INFO] testing heavypackets/rust-iterator-emoji against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fheavypackets%2Frust-iterator-emoji" "/workspace/builds/worker-76/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-76/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/heavypackets/rust-iterator-emoji on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/heavypackets/rust-iterator-emoji
[INFO] finished tweaking git repo https://github.com/heavypackets/rust-iterator-emoji
[INFO] tweaked toml for git repo https://github.com/heavypackets/rust-iterator-emoji written to /workspace/builds/worker-76/source/Cargo.toml
[INFO] crate git repo https://github.com/heavypackets/rust-iterator-emoji already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 15b0daceeddc6128edcd2566e90ea2fd57f8b22ce36fb3af928a6b81175f1900
[INFO] running `Command { std: "docker" "start" "-a" "15b0daceeddc6128edcd2566e90ea2fd57f8b22ce36fb3af928a6b81175f1900", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15b0daceeddc6128edcd2566e90ea2fd57f8b22ce36fb3af928a6b81175f1900", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15b0daceeddc6128edcd2566e90ea2fd57f8b22ce36fb3af928a6b81175f1900", kill_on_drop: false }`
[INFO] [stdout] 15b0daceeddc6128edcd2566e90ea2fd57f8b22ce36fb3af928a6b81175f1900
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85e6b6958119f93ef9e24ea726d3e16cabfae8f420de2a1b8755200f22e0b015
[INFO] running `Command { std: "docker" "start" "-a" "85e6b6958119f93ef9e24ea726d3e16cabfae8f420de2a1b8755200f22e0b015", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-iterators-as-emojis v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.21s
[INFO] running `Command { std: "docker" "inspect" "85e6b6958119f93ef9e24ea726d3e16cabfae8f420de2a1b8755200f22e0b015", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85e6b6958119f93ef9e24ea726d3e16cabfae8f420de2a1b8755200f22e0b015", kill_on_drop: false }`
[INFO] [stdout] 85e6b6958119f93ef9e24ea726d3e16cabfae8f420de2a1b8755200f22e0b015
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7cf37cc156d2c3d02526aadd3240b951c4cfc76be11f5571f957b125563b07f1
[INFO] running `Command { std: "docker" "start" "-a" "7cf37cc156d2c3d02526aadd3240b951c4cfc76be11f5571f957b125563b07f1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-iterators-as-emojis v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.82s
[INFO] running `Command { std: "docker" "inspect" "7cf37cc156d2c3d02526aadd3240b951c4cfc76be11f5571f957b125563b07f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cf37cc156d2c3d02526aadd3240b951c4cfc76be11f5571f957b125563b07f1", kill_on_drop: false }`
[INFO] [stdout] 7cf37cc156d2c3d02526aadd3240b951c4cfc76be11f5571f957b125563b07f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5ca00eb92ade5aebee9a6ca2f8387ddcd00db147238ce9cc367a651c59979ab5
[INFO] running `Command { std: "docker" "start" "-a" "5ca00eb92ade5aebee9a6ca2f8387ddcd00db147238ce9cc367a651c59979ab5", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_iterators_as_emojis-a997a81a84bbd613)
[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" "5ca00eb92ade5aebee9a6ca2f8387ddcd00db147238ce9cc367a651c59979ab5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ca00eb92ade5aebee9a6ca2f8387ddcd00db147238ce9cc367a651c59979ab5", kill_on_drop: false }`
[INFO] [stdout] 5ca00eb92ade5aebee9a6ca2f8387ddcd00db147238ce9cc367a651c59979ab5