[INFO] updating cached repository https://github.com/grahamc/rfc39
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c44ecfb2f645242e1e3d6ff97d67eb885210ef33
[INFO] checking grahamc/rfc39 against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrahamc%2Frfc39" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/grahamc/rfc39 on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/grahamc/rfc39
[INFO] finished tweaking git repo https://github.com/grahamc/rfc39
[INFO] tweaked toml for git repo https://github.com/grahamc/rfc39 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/grahamc/rfc39 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e7e807871b988c6d38deae6ec6c2a577e1993a4f5d6e2d33a7bb7a43e6c1104f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "e7e807871b988c6d38deae6ec6c2a577e1993a4f5d6e2d33a7bb7a43e6c1104f"`
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling serde v1.0.98
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stderr]     Checking indexmap v1.0.2
[INFO] [stderr]     Checking arc-swap v0.3.11
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling protobuf v2.8.1
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]     Checking untrusted v0.6.2
[INFO] [stderr]    Compiling prometheus v0.7.0
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling unicase v2.4.0
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking tokio-sync v0.1.6
[INFO] [stderr]     Checking miniz_oxide v0.3.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking arrayvec v0.4.11
[INFO] [stderr]    Compiling miniz_oxide_c_api v0.2.3
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking ryu v1.0.0
[INFO] [stderr]    Compiling openssl-sys v0.9.48
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking getrandom v0.1.8
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking encoding_rs v0.8.17
[INFO] [stderr]     Checking unicode-normalization v0.1.8
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling hyper v0.12.33
[INFO] [stderr]     Checking ring v0.14.6
[INFO] [stderr]     Checking slog-scope v4.1.2
[INFO] [stderr]     Checking slog-async v2.3.0
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling openssl v0.10.24
[INFO] [stderr]     Checking libflate v0.1.26
[INFO] [stderr]     Checking tokio-executor v0.1.8
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking backtrace v0.3.34
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking regex v1.2.1
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking tokio-current-thread v0.1.6
[INFO] [stderr]     Checking tokio-timer v0.2.11
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking http v0.1.18
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking mime v0.3.13
[INFO] [stderr]    Compiling mime_guess v2.0.1
[INFO] [stderr]    Compiling syn v0.15.43
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking flate2 v1.0.9
[INFO] [stderr]     Checking slog-stdlog v3.0.5
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking slog-kvfilter v0.7.0
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking chrono v0.4.7
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking tokio-threadpool v0.1.15
[INFO] [stderr]     Checking crossbeam v0.7.2
[INFO] [stderr]     Checking slog-stdlog v4.0.0
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-udp v0.1.3
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking publicsuffix v1.5.2
[INFO] [stderr]     Checking cookie v0.12.0
[INFO] [stderr]     Checking slog-term v2.4.1
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking hyperx v0.13.2
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.98
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling trackable_derive v0.1.2
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking trackable v0.2.22
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking sloggers v0.3.2
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking jsonwebtoken v6.0.1
[INFO] [stderr]     Checking reqwest v0.9.19
[INFO] [stderr]     Checking hubcaps v0.5.0 (https://github.com/grahamc/hubcaps.git?rev=2a3d989999fea815ef9ad004d93686e923020adf#2a3d9899)
[INFO] [stderr]     Checking rfc39 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 40s
[INFO] running `"docker" "inspect" "e7e807871b988c6d38deae6ec6c2a577e1993a4f5d6e2d33a7bb7a43e6c1104f"`
[INFO] running `"docker" "rm" "-f" "e7e807871b988c6d38deae6ec6c2a577e1993a4f5d6e2d33a7bb7a43e6c1104f"`
[INFO] [stdout] e7e807871b988c6d38deae6ec6c2a577e1993a4f5d6e2d33a7bb7a43e6c1104f