[INFO] cloning repository https://github.com/codegram/wasm-tree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/codegram/wasm-tree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodegram%2Fwasm-tree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodegram%2Fwasm-tree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 74f7bd3f170a99ef6fb7a753e5d369f7a3d4b7d0
[INFO] checking codegram/wasm-tree against try#9c1dcf141bc0875407c4eb36972857bd3db713e2 for pr-81863
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodegram%2Fwasm-tree" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/codegram/wasm-tree on toolchain 9c1dcf141bc0875407c4eb36972857bd3db713e2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/codegram/wasm-tree
[INFO] finished tweaking git repo https://github.com/codegram/wasm-tree
[INFO] tweaked toml for git repo https://github.com/codegram/wasm-tree written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/codegram/wasm-tree already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.52
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.52
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.52
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.52
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 55fa864a61f953c603e71d0cff30cc91bc7d7846650882f986b67c0004083809
[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" "55fa864a61f953c603e71d0cff30cc91bc7d7846650882f986b67c0004083809", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55fa864a61f953c603e71d0cff30cc91bc7d7846650882f986b67c0004083809", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55fa864a61f953c603e71d0cff30cc91bc7d7846650882f986b67c0004083809", kill_on_drop: false }`
[INFO] [stdout] 55fa864a61f953c603e71d0cff30cc91bc7d7846650882f986b67c0004083809
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 62d93bf59263ee361d643fe53f815a2f808a90229479599c2af337487e26b340
[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" "62d93bf59263ee361d643fe53f815a2f808a90229479599c2af337487e26b340", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.52
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling bumpalo v2.6.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling wasm-bindgen v0.2.52
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.52
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.52
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.52
[INFO] [stderr]     Checking wasm-tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.80s
[INFO] running `Command { std: "docker" "inspect" "62d93bf59263ee361d643fe53f815a2f808a90229479599c2af337487e26b340", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62d93bf59263ee361d643fe53f815a2f808a90229479599c2af337487e26b340", kill_on_drop: false }`
[INFO] [stdout] 62d93bf59263ee361d643fe53f815a2f808a90229479599c2af337487e26b340