[INFO] fetching crate copo 0.1.2...
[INFO] checking copo-0.1.2 against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] extracting crate copo 0.1.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate copo 0.1.2 on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate copo 0.1.2
[INFO] finished tweaking crates.io crate copo 0.1.2
[INFO] tweaked toml for crates.io crate copo 0.1.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate copo 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 215e96ddc5fd9578e06ea277ad4607819c383a8f8471f0ac1f94930df50f154d
[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" "215e96ddc5fd9578e06ea277ad4607819c383a8f8471f0ac1f94930df50f154d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "215e96ddc5fd9578e06ea277ad4607819c383a8f8471f0ac1f94930df50f154d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "215e96ddc5fd9578e06ea277ad4607819c383a8f8471f0ac1f94930df50f154d", kill_on_drop: false }`
[INFO] [stdout] 215e96ddc5fd9578e06ea277ad4607819c383a8f8471f0ac1f94930df50f154d
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6ae76d69e174aac0fa01f16e72d53c763fa6f60d50d8ade0f3ade785bb7ce8e
[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" "e6ae76d69e174aac0fa01f16e72d53c763fa6f60d50d8ade0f3ade785bb7ce8e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking object v0.23.0
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking number_prefix v0.3.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling libdbus-sys v0.2.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking terminal_size v0.1.16
[INFO] [stderr]     Checking termios v0.3.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking dbus v0.9.1
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking console v0.14.0
[INFO] [stderr]     Checking console v0.11.3
[INFO] [stderr]     Checking notify-rust v4.2.2
[INFO] [stderr]     Checking addr2line v0.14.1
[INFO] [stderr]     Checking indicatif v0.15.0
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking exitfailure v0.5.1
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking copo v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.39s
[INFO] running `Command { std: "docker" "inspect" "e6ae76d69e174aac0fa01f16e72d53c763fa6f60d50d8ade0f3ade785bb7ce8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6ae76d69e174aac0fa01f16e72d53c763fa6f60d50d8ade0f3ade785bb7ce8e", kill_on_drop: false }`
[INFO] [stdout] e6ae76d69e174aac0fa01f16e72d53c763fa6f60d50d8ade0f3ade785bb7ce8e