[INFO] fetching crate len 0.1.1...
[INFO] checking len-0.1.1 against master#6526e5c772f2da07db745c94ca6bb0a591a39ba4 for pr-80920
[INFO] extracting crate len 0.1.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate len 0.1.1 on toolchain 6526e5c772f2da07db745c94ca6bb0a591a39ba4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate len 0.1.1
[INFO] finished tweaking crates.io crate len 0.1.1
[INFO] tweaked toml for crates.io crate len 0.1.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate len 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a6179bb4133cb0c8f383d1cd62ceca3db6c99143278730fb7c7fffd6cb4c5547
[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" "a6179bb4133cb0c8f383d1cd62ceca3db6c99143278730fb7c7fffd6cb4c5547", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6179bb4133cb0c8f383d1cd62ceca3db6c99143278730fb7c7fffd6cb4c5547", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6179bb4133cb0c8f383d1cd62ceca3db6c99143278730fb7c7fffd6cb4c5547", kill_on_drop: false }`
[INFO] [stdout] a6179bb4133cb0c8f383d1cd62ceca3db6c99143278730fb7c7fffd6cb4c5547
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f766650fa4474a8b06833c1f46e9bc90ff357550dd82c5b5ff03ed4521e4fb5
[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" "4f766650fa4474a8b06833c1f46e9bc90ff357550dd82c5b5ff03ed4521e4fb5", 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] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]     Checking bytesize v1.0.0
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking len v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.73s
[INFO] running `Command { std: "docker" "inspect" "4f766650fa4474a8b06833c1f46e9bc90ff357550dd82c5b5ff03ed4521e4fb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f766650fa4474a8b06833c1f46e9bc90ff357550dd82c5b5ff03ed4521e4fb5", kill_on_drop: false }`
[INFO] [stdout] 4f766650fa4474a8b06833c1f46e9bc90ff357550dd82c5b5ff03ed4521e4fb5