[INFO] fetching crate uu_stdbuf_libstdbuf 0.0.1...
[INFO] checking uu_stdbuf_libstdbuf-0.0.1 against master#7f5a42b073dc2bee2aa625052eb066ee07072048 for pr-78991
[INFO] extracting crate uu_stdbuf_libstdbuf 0.0.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate uu_stdbuf_libstdbuf 0.0.1 on toolchain 7f5a42b073dc2bee2aa625052eb066ee07072048
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate uu_stdbuf_libstdbuf 0.0.1
[INFO] finished tweaking crates.io crate uu_stdbuf_libstdbuf 0.0.1
[INFO] tweaked toml for crates.io crate uu_stdbuf_libstdbuf 0.0.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "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" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "fetch" "--locked" "--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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "metadata" "--no-deps" "--format-version=1", 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] b267f3528c841603e2cb84e2102d6e4bfb266e2a22a206a5db7150b6068e4ba5
[INFO] running `Command { std: "docker" "start" "-a" "b267f3528c841603e2cb84e2102d6e4bfb266e2a22a206a5db7150b6068e4ba5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b267f3528c841603e2cb84e2102d6e4bfb266e2a22a206a5db7150b6068e4ba5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b267f3528c841603e2cb84e2102d6e4bfb266e2a22a206a5db7150b6068e4ba5", kill_on_drop: false }`
[INFO] [stdout] b267f3528c841603e2cb84e2102d6e4bfb266e2a22a206a5db7150b6068e4ba5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8da18e6ff7d65c9a3a2670f7d265d72026a96ee23267f6f106da4e6c3fec790d
[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" "8da18e6ff7d65c9a3a2670f7d265d72026a96ee23267f6f106da4e6c3fec790d", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling cc v1.0.62
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]     Checking dunce v1.0.1
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling cpp_synom v0.12.0
[INFO] [stderr]    Compiling cpp_syn v0.12.0
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]     Checking backtrace v0.3.30
[INFO] [stderr]     Checking uucore v0.0.4
[INFO] [stderr]    Compiling cpp_common v0.4.0
[INFO] [stderr]    Compiling cpp_synmap v0.3.0
[INFO] [stderr]    Compiling cpp_build v0.4.0
[INFO] [stderr]    Compiling cpp_macros v0.4.0
[INFO] [stderr]    Compiling uu_stdbuf_libstdbuf v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling uucore_procs v0.0.4
[INFO] [stderr]     Checking cpp v0.4.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.98s
[INFO] running `Command { std: "docker" "inspect" "8da18e6ff7d65c9a3a2670f7d265d72026a96ee23267f6f106da4e6c3fec790d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8da18e6ff7d65c9a3a2670f7d265d72026a96ee23267f6f106da4e6c3fec790d", kill_on_drop: false }`
[INFO] [stdout] 8da18e6ff7d65c9a3a2670f7d265d72026a96ee23267f6f106da4e6c3fec790d