[INFO] fetching crate spaad 0.4.0-beta.2...
[INFO] checking spaad-0.4.0-beta.2 against try#15a786332e2f0dd343b226ab6bb8ec028a350f73 for pr-81782
[INFO] extracting crate spaad 0.4.0-beta.2 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate spaad 0.4.0-beta.2 on toolchain 15a786332e2f0dd343b226ab6bb8ec028a350f73
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate spaad 0.4.0-beta.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate spaad 0.4.0-beta.2
[INFO] tweaked toml for crates.io crate spaad 0.4.0-beta.2 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate spaad 0.4.0-beta.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-trait v0.1.36
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.64
[INFO] [stderr]   Downloaded loom v0.3.4
[INFO] [stderr]   Downloaded generator v0.6.21
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.64
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.64
[INFO] [stderr]   Downloaded blocking v0.4.6
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.14
[INFO] [stderr]   Downloaded js-sys v0.3.41
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.64
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.64
[INFO] [stderr]   Downloaded web-sys v0.3.41
[INFO] [stderr]   Downloaded fastrand v1.3.2
[INFO] [stderr]   Downloaded cache-padded v1.1.0
[INFO] [stderr]   Downloaded concurrent-queue v1.1.1
[INFO] [stderr]   Downloaded spaad_internal v0.4.0-beta.1
[INFO] [stderr]   Downloaded xtra v0.5.0-beta.3
[INFO] [stderr]   Downloaded cc v1.0.57
[INFO] [stderr]   Downloaded parking v1.0.3
[INFO] [stderr]   Downloaded bytes v0.5.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94d4bb2224271db1a3af5a5d67e9223d5c8b3cb624367361d70ff02ea3d90fa8
[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" "94d4bb2224271db1a3af5a5d67e9223d5c8b3cb624367361d70ff02ea3d90fa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94d4bb2224271db1a3af5a5d67e9223d5c8b3cb624367361d70ff02ea3d90fa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94d4bb2224271db1a3af5a5d67e9223d5c8b3cb624367361d70ff02ea3d90fa8", kill_on_drop: false }`
[INFO] [stdout] 94d4bb2224271db1a3af5a5d67e9223d5c8b3cb624367361d70ff02ea3d90fa8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5997dd8179126a710b25ae023f1485132387f296d68e5d9c702dbd5f78d3fc6f
[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" "5997dd8179126a710b25ae023f1485132387f296d68e5d9c702dbd5f78d3fc6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling async-trait v0.1.36
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]     Checking tokio v0.2.21
[INFO] [stderr]    Compiling spaad_internal v0.4.0-beta.1
[INFO] [stderr]     Checking pin-project v0.4.22
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking xtra v0.5.0-beta.3
[INFO] [stderr]     Checking spaad v0.4.0-beta.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.88s
[INFO] running `Command { std: "docker" "inspect" "5997dd8179126a710b25ae023f1485132387f296d68e5d9c702dbd5f78d3fc6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5997dd8179126a710b25ae023f1485132387f296d68e5d9c702dbd5f78d3fc6f", kill_on_drop: false }`
[INFO] [stdout] 5997dd8179126a710b25ae023f1485132387f296d68e5d9c702dbd5f78d3fc6f