[INFO] fetching crate persia-futures 0.1.0...
[INFO] checking persia-futures-0.1.0 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate persia-futures 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate persia-futures 0.1.0 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate persia-futures 0.1.0
[INFO] finished tweaking crates.io crate persia-futures 0.1.0
[INFO] tweaked toml for crates.io crate persia-futures 0.1.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 973d0400db1c15992fd609cdc5ba4ada22d26f1a708b5a7c2d8f20da6d2a55c8
[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" "973d0400db1c15992fd609cdc5ba4ada22d26f1a708b5a7c2d8f20da6d2a55c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "973d0400db1c15992fd609cdc5ba4ada22d26f1a708b5a7c2d8f20da6d2a55c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "973d0400db1c15992fd609cdc5ba4ada22d26f1a708b5a7c2d8f20da6d2a55c8", kill_on_drop: false }`
[INFO] [stdout] 973d0400db1c15992fd609cdc5ba4ada22d26f1a708b5a7c2d8f20da6d2a55c8
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "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] 36be588750fe825a07e3c46c87922a609531a50594f15cc9ceaff06411afddf5
[INFO] running `Command { std: "docker" "start" "-a" "36be588750fe825a07e3c46c87922a609531a50594f15cc9ceaff06411afddf5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]     Checking futures-core v0.3.14
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking futures-io v0.3.14
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking fastrand v1.4.1
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]     Checking futures-sink v0.3.14
[INFO] [stderr]     Checking async-task v4.0.3
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]    Compiling signal-hook v0.3.8
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking futures-task v0.3.14
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking futures-micro v0.3.1
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking futures-channel v0.3.14
[INFO] [stderr]     Checking async-lock v2.4.0
[INFO] [stderr]     Checking spinning_top v0.2.3
[INFO] [stderr]     Checking async-oneshot v0.4.2
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]     Checking futures-lite v1.11.3
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking polling v2.0.3
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking nanorand v0.4.4
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking flume v0.9.2
[INFO] [stderr]     Checking async-io v1.4.1
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking async-executor v1.4.1
[INFO] [stderr]     Checking async-fs v1.5.0
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking async-process v1.1.0
[INFO] [stderr]     Checking async-net v1.6.0
[INFO] [stderr]     Checking smol-timeout v0.6.0
[INFO] [stderr]     Checking smol v1.2.5
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking futures-executor v0.3.14
[INFO] [stderr]     Checking futures v0.3.14
[INFO] [stderr]     Checking async-compat v0.1.4
[INFO] [stderr]     Checking persia-futures v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.91s
[INFO] running `Command { std: "docker" "inspect" "36be588750fe825a07e3c46c87922a609531a50594f15cc9ceaff06411afddf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36be588750fe825a07e3c46c87922a609531a50594f15cc9ceaff06411afddf5", kill_on_drop: false }`
[INFO] [stdout] 36be588750fe825a07e3c46c87922a609531a50594f15cc9ceaff06411afddf5