[INFO] fetching crate fac 0.5.3...
[INFO] checking fac-0.5.3 against master#7f5a42b073dc2bee2aa625052eb066ee07072048 for pr-78991
[INFO] extracting crate fac 0.5.3 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate fac 0.5.3 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 fac 0.5.3
[INFO] finished tweaking crates.io crate fac 0.5.3
[INFO] tweaked toml for crates.io crate fac 0.5.3 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate fac 0.5.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 2a4fe318d3470b8bf5989a71fd61090eedc11b06167f869b08be9b2ee9eb9fb8
[INFO] running `Command { std: "docker" "start" "-a" "2a4fe318d3470b8bf5989a71fd61090eedc11b06167f869b08be9b2ee9eb9fb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a4fe318d3470b8bf5989a71fd61090eedc11b06167f869b08be9b2ee9eb9fb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a4fe318d3470b8bf5989a71fd61090eedc11b06167f869b08be9b2ee9eb9fb8", kill_on_drop: false }`
[INFO] [stdout] 2a4fe318d3470b8bf5989a71fd61090eedc11b06167f869b08be9b2ee9eb9fb8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 3c8b1e0252a35e4953acd591281aeb0925305983530f1ffde107d0d35f2d1a75
[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" "3c8b1e0252a35e4953acd591281aeb0925305983530f1ffde107d0d35f2d1a75", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling syn v1.0.34
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking pathdiff v0.2.0
[INFO] [stderr]     Checking metrohash v1.0.6
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.8.0
[INFO] [stderr]     Checking crude-profiler v0.1.7
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling seccomp-droundy-sys v0.1.2
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking filetime v0.2.10
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking thread_local v0.3.3
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking state v0.4.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking seccomp-droundy v0.1.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking bigbro v0.5.2
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking notify v4.0.15
[INFO] [stderr]     Checking tinyset v0.4.4
[INFO] [stderr]     Checking quickcheck v0.9.2
[INFO] [stderr]    Compiling git-version-macro v0.3.4
[INFO] [stderr]     Checking git-version v0.3.4
[INFO] [stderr]     Checking internment v0.3.13
[INFO] [stderr]     Checking ctrlc v3.1.5
[INFO] [stderr]     Checking fac v0.5.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 59.27s
[INFO] running `Command { std: "docker" "inspect" "3c8b1e0252a35e4953acd591281aeb0925305983530f1ffde107d0d35f2d1a75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c8b1e0252a35e4953acd591281aeb0925305983530f1ffde107d0d35f2d1a75", kill_on_drop: false }`
[INFO] [stdout] 3c8b1e0252a35e4953acd591281aeb0925305983530f1ffde107d0d35f2d1a75