[INFO] fetching crate prefab 0.1.0...
[INFO] checking prefab-0.1.0 against try#32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d for pr-83312
[INFO] extracting crate prefab 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate prefab 0.1.0 on toolchain 32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate prefab 0.1.0
[INFO] finished tweaking crates.io crate prefab 0.1.0
[INFO] tweaked toml for crates.io crate prefab 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate prefab 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded log v0.4.13
[INFO] [stderr]   Downloaded rand v0.8.2
[INFO] [stderr]   Downloaded tokio-macros v1.0.0
[INFO] [stderr]   Downloaded pin-project-lite v0.2.4
[INFO] [stderr]   Downloaded url v2.2.0
[INFO] [stderr]   Downloaded tinyvec v1.1.0
[INFO] [stderr]   Downloaded syn v1.0.59
[INFO] [stderr]   Downloaded tokio v1.1.0
[INFO] [stderr]   Downloaded form_urlencoded v1.0.0
[INFO] [stderr]   Downloaded async-trait v0.1.42
[INFO] [stderr]   Downloaded wasi v0.10.1+wasi-snapshot-preview1
[INFO] [stderr]   Downloaded prefab_macro v0.1.0
[INFO] [stderr]   Downloaded unicode-normalization v0.1.16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c07e0ebac0d6eb10979d6d9eb42ed7f81794d4d852a6663d48afdf8cb4358f8
[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" "3c07e0ebac0d6eb10979d6d9eb42ed7f81794d4d852a6663d48afdf8cb4358f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c07e0ebac0d6eb10979d6d9eb42ed7f81794d4d852a6663d48afdf8cb4358f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c07e0ebac0d6eb10979d6d9eb42ed7f81794d4d852a6663d48afdf8cb4358f8", kill_on_drop: false }`
[INFO] [stdout] 3c07e0ebac0d6eb10979d6d9eb42ed7f81794d4d852a6663d48afdf8cb4358f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 100d7880b1f68ed687da0a72234e7c61069ec170b9f9b45db8c000ef2498621b
[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" "100d7880b1f68ed687da0a72234e7c61069ec170b9f9b45db8c000ef2498621b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling log v0.4.13
[INFO] [stderr]    Compiling syn v1.0.59
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling pin-project-lite v0.2.4
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]    Compiling shell-escape v0.1.5
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]     Checking tinyvec v1.1.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling lock_api v0.4.2
[INFO] [stderr]     Checking form_urlencoded v1.0.0
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling tokio v1.1.0
[INFO] [stderr]     Checking unicode-normalization v0.1.16
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking parking_lot_core v0.8.2
[INFO] [stderr]     Checking mio v0.7.7
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rand_core v0.6.1
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking rand v0.8.2
[INFO] [stderr]     Checking url v2.2.0
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]    Compiling tokio-macros v1.0.0
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]     Checking openssh v0.8.0
[INFO] [stderr]     Checking prefab_core v0.1.0
[INFO] [stderr]    Compiling prefab_macro v0.1.0
[INFO] [stderr]     Checking prefab v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.68s
[INFO] running `Command { std: "docker" "inspect" "100d7880b1f68ed687da0a72234e7c61069ec170b9f9b45db8c000ef2498621b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "100d7880b1f68ed687da0a72234e7c61069ec170b9f9b45db8c000ef2498621b", kill_on_drop: false }`
[INFO] [stdout] 100d7880b1f68ed687da0a72234e7c61069ec170b9f9b45db8c000ef2498621b