[INFO] cloning repository https://github.com/ktanaka101/nail
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ktanaka101/nail" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fktanaka101%2Fnail", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fktanaka101%2Fnail'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 63ac607ebe56111f40a0298cc6f23ef650cfc8b6
[INFO] checking ktanaka101/nail against master#c9228570668803e3e6402770d55f23a12c9ae686 for pr-79472
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fktanaka101%2Fnail" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ktanaka101/nail on toolchain c9228570668803e3e6402770d55f23a12c9ae686
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ktanaka101/nail
[INFO] finished tweaking git repo https://github.com/ktanaka101/nail
[INFO] tweaked toml for git repo https://github.com/ktanaka101/nail written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/ktanaka101/nail already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1d3bda7968aea1de69ffc985ef1e14fe7eece58b1dd9f05f054f9d4698b8f39e
[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" "1d3bda7968aea1de69ffc985ef1e14fe7eece58b1dd9f05f054f9d4698b8f39e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d3bda7968aea1de69ffc985ef1e14fe7eece58b1dd9f05f054f9d4698b8f39e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d3bda7968aea1de69ffc985ef1e14fe7eece58b1dd9f05f054f9d4698b8f39e", kill_on_drop: false }`
[INFO] [stdout] 1d3bda7968aea1de69ffc985ef1e14fe7eece58b1dd9f05f054f9d4698b8f39e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aea7e5d3c5e93d974afea11ff75ddb6e529f98a4b2e3581137388458fae3bae1
[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" "aea7e5d3c5e93d974afea11ff75ddb6e529f98a4b2e3581137388458fae3bae1", kill_on_drop: false }`
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling syn v1.0.53
[INFO] [stderr]     Checking smallvec v1.5.1
[INFO] [stderr]    Compiling inkwell v0.1.0 (https://github.com/TheDan64/inkwell?branch=llvm10-0#79070d9f)
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking termion v1.5.5
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]     Checking parking_lot_core v0.8.1
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling llvm-sys v100.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling inkwell_internals v0.2.0 (https://github.com/TheDan64/inkwell?branch=llvm10-0#79070d9f)
[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]     Checking nail v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] running `Command { std: "docker" "inspect" "aea7e5d3c5e93d974afea11ff75ddb6e529f98a4b2e3581137388458fae3bae1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aea7e5d3c5e93d974afea11ff75ddb6e529f98a4b2e3581137388458fae3bae1", kill_on_drop: false }`
[INFO] [stdout] aea7e5d3c5e93d974afea11ff75ddb6e529f98a4b2e3581137388458fae3bae1