[INFO] cloning repository https://github.com/maxvinza/rust_libiterator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maxvinza/rust_libiterator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxvinza%2Frust_libiterator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxvinza%2Frust_libiterator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 67a033b0dbab283e267b676acd8d78c4760e97bd
[INFO] testing maxvinza/rust_libiterator against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxvinza%2Frust_libiterator" "/workspace/builds/worker-100/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-100/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/maxvinza/rust_libiterator 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/maxvinza/rust_libiterator
[INFO] finished tweaking git repo https://github.com/maxvinza/rust_libiterator
[INFO] tweaked toml for git repo https://github.com/maxvinza/rust_libiterator written to /workspace/builds/worker-100/source/Cargo.toml
[INFO] crate git repo https://github.com/maxvinza/rust_libiterator 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-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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] a5255d8215465026daf787fc84ffb3d9d2ac2ff8061a66cdd409eb409b89c56c
[INFO] running `Command { std: "docker" "start" "-a" "a5255d8215465026daf787fc84ffb3d9d2ac2ff8061a66cdd409eb409b89c56c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5255d8215465026daf787fc84ffb3d9d2ac2ff8061a66cdd409eb409b89c56c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5255d8215465026daf787fc84ffb3d9d2ac2ff8061a66cdd409eb409b89c56c", kill_on_drop: false }`
[INFO] [stdout] a5255d8215465026daf787fc84ffb3d9d2ac2ff8061a66cdd409eb409b89c56c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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] 1e83f105adf2287eefad117fde3462a8926b142396fb5684278e42c5e952cde6
[INFO] running `Command { std: "docker" "start" "-a" "1e83f105adf2287eefad117fde3462a8926b142396fb5684278e42c5e952cde6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling libiterator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.09s
[INFO] running `Command { std: "docker" "inspect" "1e83f105adf2287eefad117fde3462a8926b142396fb5684278e42c5e952cde6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e83f105adf2287eefad117fde3462a8926b142396fb5684278e42c5e952cde6", kill_on_drop: false }`
[INFO] [stdout] 1e83f105adf2287eefad117fde3462a8926b142396fb5684278e42c5e952cde6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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] f62f8a6e4c31b8ff06f7148c98f33ca12d27811ecb67ecf91c2fe7e452b7eff4
[INFO] running `Command { std: "docker" "start" "-a" "f62f8a6e4c31b8ff06f7148c98f33ca12d27811ecb67ecf91c2fe7e452b7eff4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libiterator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "f62f8a6e4c31b8ff06f7148c98f33ca12d27811ecb67ecf91c2fe7e452b7eff4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f62f8a6e4c31b8ff06f7148c98f33ca12d27811ecb67ecf91c2fe7e452b7eff4", kill_on_drop: false }`
[INFO] [stdout] f62f8a6e4c31b8ff06f7148c98f33ca12d27811ecb67ecf91c2fe7e452b7eff4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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] f5c7e9b4c51c586444ac71f25f52d08ab6a199ad064e1f2b24724049b8710f0c
[INFO] running `Command { std: "docker" "start" "-a" "f5c7e9b4c51c586444ac71f25f52d08ab6a199ad064e1f2b24724049b8710f0c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/libiterator-000e0fbcfdf1bc39)
[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" "f5c7e9b4c51c586444ac71f25f52d08ab6a199ad064e1f2b24724049b8710f0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5c7e9b4c51c586444ac71f25f52d08ab6a199ad064e1f2b24724049b8710f0c", kill_on_drop: false }`
[INFO] [stdout] f5c7e9b4c51c586444ac71f25f52d08ab6a199ad064e1f2b24724049b8710f0c