[INFO] fetching crate proxy-wasm-experimental 0.0.7...
[INFO] checking proxy-wasm-experimental-0.0.7 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate proxy-wasm-experimental 0.0.7 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate proxy-wasm-experimental 0.0.7 on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-12/source/.cargo/config
[INFO] started tweaking crates.io crate proxy-wasm-experimental 0.0.7
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate proxy-wasm-experimental 0.0.7
[INFO] tweaked toml for crates.io crate proxy-wasm-experimental 0.0.7 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate proxy-wasm-experimental 0.0.7 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b96a728244b323691df5d24652e238fc1a68d70966f9af6d52bfa5a40b8fa83
[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" "0b96a728244b323691df5d24652e238fc1a68d70966f9af6d52bfa5a40b8fa83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b96a728244b323691df5d24652e238fc1a68d70966f9af6d52bfa5a40b8fa83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b96a728244b323691df5d24652e238fc1a68d70966f9af6d52bfa5a40b8fa83", kill_on_drop: false }`
[INFO] [stdout] 0b96a728244b323691df5d24652e238fc1a68d70966f9af6d52bfa5a40b8fa83
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2883ba1556b45f0e05077b3cf18fe357554ec27a46ebd66e264043267cfb836
[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" "d2883ba1556b45f0e05077b3cf18fe357554ec27a46ebd66e264043267cfb836", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]     Checking tinyvec v0.3.4
[INFO] [stderr]    Compiling pulldown-cmark v0.7.2
[INFO] [stderr]    Compiling wee_alloc v0.4.5
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking memory_units v0.4.0
[INFO] [stderr]     Checking semver-parser v0.9.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling hashbrown v0.7.2
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking quote v1.0.7
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking proxy-wasm-experimental v0.0.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking version-sync v0.9.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.04s
[INFO] running `Command { std: "docker" "inspect" "d2883ba1556b45f0e05077b3cf18fe357554ec27a46ebd66e264043267cfb836", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2883ba1556b45f0e05077b3cf18fe357554ec27a46ebd66e264043267cfb836", kill_on_drop: false }`
[INFO] [stdout] d2883ba1556b45f0e05077b3cf18fe357554ec27a46ebd66e264043267cfb836