[INFO] fetching crate prototty_wasm_storage 0.27.0...
[INFO] checking prototty_wasm_storage-0.27.0 against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] extracting crate prototty_wasm_storage 0.27.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate prototty_wasm_storage 0.27.0 on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate prototty_wasm_storage 0.27.0
[INFO] finished tweaking crates.io crate prototty_wasm_storage 0.27.0
[INFO] tweaked toml for crates.io crate prototty_wasm_storage 0.27.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded prototty_monolithic_storage v0.27.0
[INFO] [stderr]   Downloaded prototty_storage v0.27.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "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] ec3b270005902c21e1fa2c04c22ad9c710ee6269070e379ea4cc94ad5f115302
[INFO] running `Command { std: "docker" "start" "-a" "ec3b270005902c21e1fa2c04c22ad9c710ee6269070e379ea4cc94ad5f115302", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec3b270005902c21e1fa2c04c22ad9c710ee6269070e379ea4cc94ad5f115302", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec3b270005902c21e1fa2c04c22ad9c710ee6269070e379ea4cc94ad5f115302", kill_on_drop: false }`
[INFO] [stdout] ec3b270005902c21e1fa2c04c22ad9c710ee6269070e379ea4cc94ad5f115302
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "check" "--frozen" "--all" "--all-targets" "--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] 2ef685e2ae563b24256dbbbb07121a14b2930c0b8bcbe3e4fde54002dee68dec
[INFO] running `Command { std: "docker" "start" "-a" "2ef685e2ae563b24256dbbbb07121a14b2930c0b8bcbe3e4fde54002dee68dec", kill_on_drop: false }`
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.67
[INFO] [stderr]    Compiling wasm-bindgen v0.2.67
[INFO] [stderr]     Checking prototty_storage v0.27.0
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking prototty_monolithic_storage v0.27.0
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.67
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.67
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.67
[INFO] [stderr]     Checking prototty_wasm_storage v0.27.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.32s
[INFO] running `Command { std: "docker" "inspect" "2ef685e2ae563b24256dbbbb07121a14b2930c0b8bcbe3e4fde54002dee68dec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ef685e2ae563b24256dbbbb07121a14b2930c0b8bcbe3e4fde54002dee68dec", kill_on_drop: false }`
[INFO] [stdout] 2ef685e2ae563b24256dbbbb07121a14b2930c0b8bcbe3e4fde54002dee68dec