[INFO] fetching crate merge-io 0.3.0...
[INFO] checking merge-io-0.3.0 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate merge-io 0.3.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate merge-io 0.3.0 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate merge-io 0.3.0
[INFO] finished tweaking crates.io crate merge-io 0.3.0
[INFO] tweaked toml for crates.io crate merge-io 0.3.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7dbd1b798969e61791184b356e023a2ccae78e354ba59cf14d3a72e06a8e4755
[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" "7dbd1b798969e61791184b356e023a2ccae78e354ba59cf14d3a72e06a8e4755", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7dbd1b798969e61791184b356e023a2ccae78e354ba59cf14d3a72e06a8e4755", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7dbd1b798969e61791184b356e023a2ccae78e354ba59cf14d3a72e06a8e4755", kill_on_drop: false }`
[INFO] [stdout] 7dbd1b798969e61791184b356e023a2ccae78e354ba59cf14d3a72e06a8e4755
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "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] 6e4fe1a6e57dc64ae7715704c24c18e57df5bd47de1a42f3c3c2dc7d8c3a1069
[INFO] running `Command { std: "docker" "start" "-a" "6e4fe1a6e57dc64ae7715704c24c18e57df5bd47de1a42f3c3c2dc7d8c3a1069", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling futures-core v0.3.18
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]     Checking merge-io v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking futures-channel v0.3.18
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling futures-macro v0.3.18
[INFO] [stderr]     Checking futures-util v0.3.18
[INFO] [stderr]     Checking futures-executor v0.3.18
[INFO] [stderr]     Checking futures v0.3.18
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.99s
[INFO] running `Command { std: "docker" "inspect" "6e4fe1a6e57dc64ae7715704c24c18e57df5bd47de1a42f3c3c2dc7d8c3a1069", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e4fe1a6e57dc64ae7715704c24c18e57df5bd47de1a42f3c3c2dc7d8c3a1069", kill_on_drop: false }`
[INFO] [stdout] 6e4fe1a6e57dc64ae7715704c24c18e57df5bd47de1a42f3c3c2dc7d8c3a1069