[INFO] fetching crate chunk_iter 0.1.3...
[INFO] testing chunk_iter-0.1.3 against 1.55.0 for beta-1.56-1
[INFO] extracting crate chunk_iter 0.1.3 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate chunk_iter 0.1.3 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 crates.io crate chunk_iter 0.1.3
[INFO] finished tweaking crates.io crate chunk_iter 0.1.3
[INFO] tweaked toml for crates.io crate chunk_iter 0.1.3 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 09693d2f5e8e315f12286990a2876fa73d286d04a3a163c1ee2a3d30c6d64dfb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "09693d2f5e8e315f12286990a2876fa73d286d04a3a163c1ee2a3d30c6d64dfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09693d2f5e8e315f12286990a2876fa73d286d04a3a163c1ee2a3d30c6d64dfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09693d2f5e8e315f12286990a2876fa73d286d04a3a163c1ee2a3d30c6d64dfb", kill_on_drop: false }`
[INFO] [stdout] 09693d2f5e8e315f12286990a2876fa73d286d04a3a163c1ee2a3d30c6d64dfb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6b79e338fca5997be8f6b140771dbe4e3089123005efaf9516751f3aa75f6fe3
[INFO] running `Command { std: "docker" "start" "-a" "6b79e338fca5997be8f6b140771dbe4e3089123005efaf9516751f3aa75f6fe3", kill_on_drop: false }`
[INFO] [stderr]    Compiling chunk_iter v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "6b79e338fca5997be8f6b140771dbe4e3089123005efaf9516751f3aa75f6fe3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b79e338fca5997be8f6b140771dbe4e3089123005efaf9516751f3aa75f6fe3", kill_on_drop: false }`
[INFO] [stdout] 6b79e338fca5997be8f6b140771dbe4e3089123005efaf9516751f3aa75f6fe3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 9df625703dc94b65e390fa3d7030fb1fc733a99b7779b0fba33d5b3d6ed5e26e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9df625703dc94b65e390fa3d7030fb1fc733a99b7779b0fba33d5b3d6ed5e26e", kill_on_drop: false }`
[INFO] [stderr]    Compiling testdrop v0.1.2
[INFO] [stderr]    Compiling chunk_iter v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `Command { std: "docker" "inspect" "9df625703dc94b65e390fa3d7030fb1fc733a99b7779b0fba33d5b3d6ed5e26e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9df625703dc94b65e390fa3d7030fb1fc733a99b7779b0fba33d5b3d6ed5e26e", kill_on_drop: false }`
[INFO] [stdout] 9df625703dc94b65e390fa3d7030fb1fc733a99b7779b0fba33d5b3d6ed5e26e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 93c84a619427c763e56eb8b2ed3855afba6ddc42c50a8d88ee22223924512630
[INFO] running `Command { std: "docker" "start" "-a" "93c84a619427c763e56eb8b2ed3855afba6ddc42c50a8d88ee22223924512630", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/chunk_iter-aa3eb214c34faa1c)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::basic_test ... ok
[INFO] [stdout] test tests::size_hint_test ... ok
[INFO] [stdout] test tests::drop_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests chunk_iter
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 2) ... ok
[INFO] [stdout] test src/lib.rs - ChunkIter::chunks (line 16) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.45s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "93c84a619427c763e56eb8b2ed3855afba6ddc42c50a8d88ee22223924512630", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93c84a619427c763e56eb8b2ed3855afba6ddc42c50a8d88ee22223924512630", kill_on_drop: false }`
[INFO] [stdout] 93c84a619427c763e56eb8b2ed3855afba6ddc42c50a8d88ee22223924512630