[INFO] cloning repository https://github.com/ratnadeepb/Rust_async_demos
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ratnadeepb/Rust_async_demos" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fratnadeepb%2FRust_async_demos", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fratnadeepb%2FRust_async_demos'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c898ae6b6f0ac04d77990c142ce7fcd16f339d85
[INFO] checking ratnadeepb/Rust_async_demos against master#ecb170afc878648c3ae355dbd596c8e4b6f7ebdc for pr-139022
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fratnadeepb%2FRust_async_demos" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ratnadeepb/Rust_async_demos on toolchain ecb170afc878648c3ae355dbd596c8e4b6f7ebdc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ecb170afc878648c3ae355dbd596c8e4b6f7ebdc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ratnadeepb/Rust_async_demos
[INFO] finished tweaking git repo https://github.com/ratnadeepb/Rust_async_demos
[INFO] tweaked toml for git repo https://github.com/ratnadeepb/Rust_async_demos written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ratnadeepb/Rust_async_demos already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ecb170afc878648c3ae355dbd596c8e4b6f7ebdc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: /workspace/builds/worker-2-tc1/source/tokio-oneshot-joinhandle/Cargo.toml: unused manifest key: dependencies.tokio.feature
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Updating git repository `https://github.com/sergey-melnychuk/rust-parser-combinators`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 19 packages to latest compatible versions
[INFO] [stderr]     Updating futures v0.3.6 -> v0.3.31
[INFO] [stderr]     Updating futures-channel v0.3.6 -> v0.3.31
[INFO] [stderr]     Updating futures-core v0.3.6 -> v0.3.31
[INFO] [stderr]     Updating futures-executor v0.3.6 -> v0.3.31
[INFO] [stderr]     Updating futures-io v0.3.6 -> v0.3.31
[INFO] [stderr]     Updating futures-macro v0.3.6 -> v0.3.31
[INFO] [stderr]     Updating futures-sink v0.3.6 -> v0.3.31
[INFO] [stderr]     Updating futures-task v0.3.6 -> v0.3.31
[INFO] [stderr]     Updating futures-util v0.3.6 -> v0.3.31
[INFO] [stderr]     Updating libc v0.2.79 -> v0.2.171
[INFO] [stderr]     Updating mio v0.7.4 -> v0.7.14 (available: v1.0.3)
[INFO] [stderr]     Updating miow v0.3.5 -> v0.3.7
[INFO] [stderr]     Updating once_cell v1.4.1 -> v1.21.2
[INFO] [stderr]       Adding pin-project-lite v0.2.16
[INFO] [stderr]     Updating proc-macro2 v1.0.24 -> v1.0.94
[INFO] [stderr]     Updating quote v1.0.7 -> v1.0.40
[INFO] [stderr]       Adding syn v2.0.100
[INFO] [stderr]     Updating tokio v0.3.1 -> v0.3.7 (available: v1.44.1)
[INFO] [stderr]       Adding unicode-ident v1.0.18
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-io v1.1.10
[INFO] [stderr]   Downloaded crossbeam-queue v0.3.0
[INFO] [stderr]   Downloaded tokio-macros v0.3.0
[INFO] [stderr]   Downloaded weezl v0.1.1
[INFO] [stderr]   Downloaded async-global-executor v1.3.0
[INFO] [stderr]   Downloaded wepoll-sys v3.0.0
[INFO] [stderr]   Downloaded async-task v4.0.2
[INFO] [stderr]   Downloaded futures-lite v1.11.1
[INFO] [stderr]   Downloaded polling v2.0.1
[INFO] [stderr]   Downloaded async-std v1.6.5
[INFO] [stderr]   Downloaded syn v1.0.43
[INFO] [stderr]   Downloaded tokio v0.3.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+ecb170afc878648c3ae355dbd596c8e4b6f7ebdc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf058e0c6fb9aaedbc5a10198de9837a4f01644652b905bd536905ac9cf5db5e
[INFO] running `Command { std: "docker" "start" "-a" "cf058e0c6fb9aaedbc5a10198de9837a4f01644652b905bd536905ac9cf5db5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf058e0c6fb9aaedbc5a10198de9837a4f01644652b905bd536905ac9cf5db5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf058e0c6fb9aaedbc5a10198de9837a4f01644652b905bd536905ac9cf5db5e", kill_on_drop: false }`
[INFO] [stdout] cf058e0c6fb9aaedbc5a10198de9837a4f01644652b905bd536905ac9cf5db5e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+ecb170afc878648c3ae355dbd596c8e4b6f7ebdc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: mkdir /var/lib/docker/overlay2/5c131849bf0929ca0f731706b5c5db0486d431393189be2be6c0f3a9d65bece9-init/merged: no space left on device