[INFO] fetching crate corn 0.1.1...
[INFO] testing corn-0.1.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate corn 0.1.1 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate corn 0.1.1 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate corn 0.1.1
[INFO] finished tweaking crates.io crate corn 0.1.1
[INFO] tweaked toml for crates.io crate corn 0.1.1 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", 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] 4fef45334d9e8a75ca6705d9b7dc3412a9c99258f1eb014be79992646604d3e0
[INFO] running `Command { std: "docker" "start" "-a" "4fef45334d9e8a75ca6705d9b7dc3412a9c99258f1eb014be79992646604d3e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4fef45334d9e8a75ca6705d9b7dc3412a9c99258f1eb014be79992646604d3e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fef45334d9e8a75ca6705d9b7dc3412a9c99258f1eb014be79992646604d3e0", kill_on_drop: false }`
[INFO] [stdout] 4fef45334d9e8a75ca6705d9b7dc3412a9c99258f1eb014be79992646604d3e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33ff40eda7c628a6b96c4f8e5b374e46e05023eb1d95c5465b1126ea7d3cca01
[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" "33ff40eda7c628a6b96c4f8e5b374e46e05023eb1d95c5465b1126ea7d3cca01", kill_on_drop: false }`
[INFO] [stderr]    Compiling corn v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "33ff40eda7c628a6b96c4f8e5b374e46e05023eb1d95c5465b1126ea7d3cca01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33ff40eda7c628a6b96c4f8e5b374e46e05023eb1d95c5465b1126ea7d3cca01", kill_on_drop: false }`
[INFO] [stdout] 33ff40eda7c628a6b96c4f8e5b374e46e05023eb1d95c5465b1126ea7d3cca01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ade4da83f53684bf26d5db0761341b32feebd67653d93b8b450f92876a8b1405
[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" "ade4da83f53684bf26d5db0761341b32feebd67653d93b8b450f92876a8b1405", kill_on_drop: false }`
[INFO] [stderr]    Compiling corn v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "ade4da83f53684bf26d5db0761341b32feebd67653d93b8b450f92876a8b1405", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ade4da83f53684bf26d5db0761341b32feebd67653d93b8b450f92876a8b1405", kill_on_drop: false }`
[INFO] [stdout] ade4da83f53684bf26d5db0761341b32feebd67653d93b8b450f92876a8b1405
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e41f61f3e0647bdaca4f6a0dc31546b0b7f291dcac64c6a10ee73a6ea62639a6
[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" "e41f61f3e0647bdaca4f6a0dc31546b0b7f291dcac64c6a10ee73a6ea62639a6", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/corn-5d9d038b0c55aa93
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e41f61f3e0647bdaca4f6a0dc31546b0b7f291dcac64c6a10ee73a6ea62639a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e41f61f3e0647bdaca4f6a0dc31546b0b7f291dcac64c6a10ee73a6ea62639a6", kill_on_drop: false }`
[INFO] [stdout] e41f61f3e0647bdaca4f6a0dc31546b0b7f291dcac64c6a10ee73a6ea62639a6