[INFO] cloning repository https://github.com/cheme/wasm-demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cheme/wasm-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcheme%2Fwasm-demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcheme%2Fwasm-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7a9a6753fc36f5c162bd1a2294d4c0cb498f851b
[INFO] checking cheme/wasm-demo against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcheme%2Fwasm-demo" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cheme/wasm-demo on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cheme/wasm-demo
[INFO] finished tweaking git repo https://github.com/cheme/wasm-demo
[INFO] tweaked toml for git repo https://github.com/cheme/wasm-demo written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/cheme/wasm-demo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_json v1.0.5
[INFO] [stderr]   Downloaded serde_derive v1.0.18
[INFO] [stderr]   Downloaded serde v1.0.18
[INFO] [stderr]   Downloaded either v1.3.0
[INFO] [stderr]   Downloaded itertools v0.7.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] deeec68322f2ead0f565cf73885675c818b88bc0d1c671d1c6754ab058626f07
[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" "deeec68322f2ead0f565cf73885675c818b88bc0d1c671d1c6754ab058626f07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "deeec68322f2ead0f565cf73885675c818b88bc0d1c671d1c6754ab058626f07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "deeec68322f2ead0f565cf73885675c818b88bc0d1c671d1c6754ab058626f07", kill_on_drop: false }`
[INFO] [stdout] deeec68322f2ead0f565cf73885675c818b88bc0d1c671d1c6754ab058626f07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 493a8e6cd02b50a96fe1630aae31158a0f6734cd5c09b1ec7fd6ba538dff7136
[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" "493a8e6cd02b50a96fe1630aae31158a0f6734cd5c09b1ec7fd6ba538dff7136", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking either v1.3.0
[INFO] [stderr]     Checking num-traits v0.1.40
[INFO] [stderr]     Checking serde v1.0.18
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking itertools v0.7.2
[INFO] [stderr]    Compiling serde_derive_internals v0.16.0
[INFO] [stderr]    Compiling serde_derive v1.0.18
[INFO] [stderr]     Checking serde_json v1.0.5
[INFO] [stderr]     Checking wasm-demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.98s
[INFO] running `Command { std: "docker" "inspect" "493a8e6cd02b50a96fe1630aae31158a0f6734cd5c09b1ec7fd6ba538dff7136", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "493a8e6cd02b50a96fe1630aae31158a0f6734cd5c09b1ec7fd6ba538dff7136", kill_on_drop: false }`
[INFO] [stdout] 493a8e6cd02b50a96fe1630aae31158a0f6734cd5c09b1ec7fd6ba538dff7136