[INFO] cloning repository https://github.com/yoshuawuyts/power-warn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yoshuawuyts/power-warn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyoshuawuyts%2Fpower-warn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyoshuawuyts%2Fpower-warn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c5aeb6deabc4607ff8bb89bac795da219b513914
[INFO] checking yoshuawuyts/power-warn against master#31ee872db5aae4750e3da1ca4ed1523c4356947f for pr-78461
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyoshuawuyts%2Fpower-warn" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yoshuawuyts/power-warn on toolchain 31ee872db5aae4750e3da1ca4ed1523c4356947f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yoshuawuyts/power-warn
[INFO] finished tweaking git repo https://github.com/yoshuawuyts/power-warn
[INFO] tweaked toml for git repo https://github.com/yoshuawuyts/power-warn written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/yoshuawuyts/power-warn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "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] e76139aeff4426d6466e44a769eee8b584fbfe1c4044b18b2aae6b9a3e6f04ce
[INFO] running `Command { std: "docker" "start" "-a" "e76139aeff4426d6466e44a769eee8b584fbfe1c4044b18b2aae6b9a3e6f04ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e76139aeff4426d6466e44a769eee8b584fbfe1c4044b18b2aae6b9a3e6f04ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e76139aeff4426d6466e44a769eee8b584fbfe1c4044b18b2aae6b9a3e6f04ce", kill_on_drop: false }`
[INFO] [stdout] e76139aeff4426d6466e44a769eee8b584fbfe1c4044b18b2aae6b9a3e6f04ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "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] 9e0809d765d1b10c4b9373c09387bdf07b68d6baef7ff709125a440d149ba922
[INFO] running `Command { std: "docker" "start" "-a" "9e0809d765d1b10c4b9373c09387bdf07b68d6baef7ff709125a440d149ba922", 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 proc-macro2 v1.0.2
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]    Compiling pkg-config v0.3.11
[INFO] [stderr]    Compiling cc v1.0.17
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]     Checking rustc-demangle v0.1.8
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.1
[INFO] [stderr]    Compiling heck v0.3.0
[INFO] [stderr]     Checking atty v0.2.10
[INFO] [stderr]    Compiling libdbus-sys v0.1.4
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking dbus v0.6.3
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]     Checking backtrace v0.3.8
[INFO] [stderr]     Checking notify-rust v3.6.3
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling synstructure v0.12.1
[INFO] [stderr]    Compiling structopt-derive v0.4.13
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking structopt v0.3.20
[INFO] [stderr]     Checking power-warn v1.2.1-alpha.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.32s
[INFO] running `Command { std: "docker" "inspect" "9e0809d765d1b10c4b9373c09387bdf07b68d6baef7ff709125a440d149ba922", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e0809d765d1b10c4b9373c09387bdf07b68d6baef7ff709125a440d149ba922", kill_on_drop: false }`
[INFO] [stdout] 9e0809d765d1b10c4b9373c09387bdf07b68d6baef7ff709125a440d149ba922