[INFO] cloning repository https://github.com/wfraser/backfs-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wfraser/backfs-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwfraser%2Fbackfs-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwfraser%2Fbackfs-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d2b4e77a34dc908abbcd82873522ab6213ca1e0b
[INFO] checking wfraser/backfs-rs against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwfraser%2Fbackfs-rs" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wfraser/backfs-rs on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wfraser/backfs-rs
[INFO] finished tweaking git repo https://github.com/wfraser/backfs-rs
[INFO] tweaked toml for git repo https://github.com/wfraser/backfs-rs written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/wfraser/backfs-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e65c35f0f7ec07c23b2cc14a53ee71135c126642ba743aa952b09dcf293cbd52
[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" "e65c35f0f7ec07c23b2cc14a53ee71135c126642ba743aa952b09dcf293cbd52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e65c35f0f7ec07c23b2cc14a53ee71135c126642ba743aa952b09dcf293cbd52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e65c35f0f7ec07c23b2cc14a53ee71135c126642ba743aa952b09dcf293cbd52", kill_on_drop: false }`
[INFO] [stdout] e65c35f0f7ec07c23b2cc14a53ee71135c126642ba743aa952b09dcf293cbd52
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 659ac551101482f786dfb1d807d843899ff3e62f0f9b5d16f980ef7356fc0bf0
[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" "659ac551101482f786dfb1d807d843899ff3e62f0f9b5d16f980ef7356fc0bf0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]     Checking object v0.23.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling fuser v0.6.0
[INFO] [stderr]     Checking addr2line v0.14.1
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking users v0.11.0
[INFO] [stderr]     Checking unix_socket v0.5.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking daemonize v0.4.1
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking syslog v3.3.0
[INFO] [stderr]    Compiling backfs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking fuse_mt v0.6.0-dev (https://github.com/wfraser/fuse-mt.git#1876f820)
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]     Checking log-panics v2.0.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.09s
[INFO] running `Command { std: "docker" "inspect" "659ac551101482f786dfb1d807d843899ff3e62f0f9b5d16f980ef7356fc0bf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "659ac551101482f786dfb1d807d843899ff3e62f0f9b5d16f980ef7356fc0bf0", kill_on_drop: false }`
[INFO] [stdout] 659ac551101482f786dfb1d807d843899ff3e62f0f9b5d16f980ef7356fc0bf0