[INFO] fetching crate linkle 0.2.10...
[INFO] checking linkle-0.2.10 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] extracting crate linkle 0.2.10 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate linkle 0.2.10 on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1/source/rust-toolchain
[INFO] started tweaking crates.io crate linkle 0.2.10
[INFO] finished tweaking crates.io crate linkle 0.2.10
[INFO] tweaked toml for crates.io crate linkle 0.2.10 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate linkle 0.2.10 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sha2 v0.7.1
[INFO] [stderr]   Downloaded block-buffer v0.3.3
[INFO] [stderr]   Downloaded serde_json v1.0.39
[INFO] [stderr]   Downloaded opaque-debug v0.2.1
[INFO] [stderr]   Downloaded num-traits v0.2.6
[INFO] [stderr]   Downloaded dirs v1.0.4
[INFO] [stderr]   Downloaded scoped_threadpool v0.1.9
[INFO] [stderr]   Downloaded nodrop v0.1.13
[INFO] [stderr]   Downloaded toml v0.5.6
[INFO] [stderr]   Downloaded block-padding v0.1.2
[INFO] [stderr]   Downloaded byte-tools v0.3.0
[INFO] [stderr]   Downloaded aes v0.3.2
[INFO] [stderr]   Downloaded aesni v0.6.0
[INFO] [stderr]   Downloaded blz-nx v1.0.1
[INFO] [stderr]   Downloaded strsim v0.7.0
[INFO] [stderr]   Downloaded rust-ini v0.13.0
[INFO] [stderr]   Downloaded generic-array v0.9.0
[INFO] [stderr]   Downloaded block-modes v0.2.0
[INFO] [stderr]   Downloaded heck v0.3.0
[INFO] [stderr]   Downloaded error-chain v0.11.0
[INFO] [stderr]   Downloaded constant_time_eq v0.1.3
[INFO] [stderr]   Downloaded bytecount v0.3.2
[INFO] [stderr]   Downloaded rustc-demangle v0.1.9
[INFO] [stderr]   Downloaded cargo_metadata v0.5.8
[INFO] [stderr]   Downloaded redox_syscall v0.1.40
[INFO] [stderr]   Downloaded winapi v0.3.5
[INFO] [stderr]   Downloaded blake2-rfc v0.2.18
[INFO] [stderr]   Downloaded plain v0.2.3
[INFO] [stderr]   Downloaded tempdir v0.3.7
[INFO] [stderr]   Downloaded lz4-sys v1.8.3
[INFO] [stderr]   Downloaded backtrace-sys v0.1.24
[INFO] [stderr]   Downloaded backtrace v0.3.9
[INFO] [stderr]   Downloaded lz4 v1.23.1
[INFO] [stderr]   Downloaded pulldown-cmark v0.1.2
[INFO] [stderr]   Downloaded libc v0.2.68
[INFO] [stderr]   Downloaded clap v2.32.0
[INFO] [stderr]   Downloaded syn v0.15.22
[INFO] [stderr]   Downloaded bitflags v0.9.1
[INFO] [stderr]   Downloaded rand v0.4.3
[INFO] [stderr]   Downloaded unicode-segmentation v1.2.1
[INFO] [stderr]   Downloaded proc-macro2 v0.4.24
[INFO] [stderr]   Downloaded textwrap v0.10.0
[INFO] [stderr]   Downloaded scroll_derive v0.9.4
[INFO] [stderr]   Downloaded unicode-width v0.1.5
[INFO] [stderr]   Downloaded cargo-toml2 v1.3.2
[INFO] [stderr]   Downloaded argon2rs v0.2.5
[INFO] [stderr]   Downloaded cmac v0.2.0
[INFO] [stderr]   Downloaded redox_users v0.2.0
[INFO] [stderr]   Downloaded cargo_metadata v0.9.1
[INFO] [stderr]   Downloaded block-cipher-trait v0.6.2
[INFO] [stderr]   Downloaded generic-array v0.12.0
[INFO] [stderr]   Downloaded derive_more v0.13.0
[INFO] [stderr]   Downloaded bit_field v0.10.0
[INFO] [stderr]   Downloaded structopt-derive v0.2.13
[INFO] [stderr]   Downloaded arrayvec v0.4.8
[INFO] [stderr]   Downloaded digest v0.7.5
[INFO] [stderr]   Downloaded syn v0.14.7
[INFO] [stderr]   Downloaded elf v0.0.10
[INFO] [stderr]   Downloaded byteorder v0.5.3
[INFO] [stderr]   Downloaded failure v0.1.3
[INFO] [stderr]   Downloaded synstructure v0.10.1
[INFO] [stderr]   Downloaded byte-tools v0.2.0
[INFO] [stderr]   Downloaded arrayref v0.3.4
[INFO] [stderr]   Downloaded ryu v0.2.8
[INFO] [stderr]   Downloaded typenum v1.11.2
[INFO] [stderr]   Downloaded dbl v0.2.0
[INFO] [stderr]   Downloaded atty v0.2.11
[INFO] [stderr]   Downloaded goblin v0.0.17
[INFO] [stderr]   Downloaded quote v0.6.4
[INFO] [stderr]   Downloaded failure_derive v0.1.3
[INFO] [stderr]   Downloaded byteorder v1.2.3
[INFO] [stderr]   Downloaded skeptic v0.13.3
[INFO] [stderr]   Downloaded scroll v0.9.0
[INFO] [stderr]   Downloaded structopt v0.2.13
[INFO] [stderr]   Downloaded aes-soft v0.3.2
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f75b3916b2b5c85119467b84230867d36f015c0931520b2b090dd992c88dd166
[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" "f75b3916b2b5c85119467b84230867d36f015c0931520b2b090dd992c88dd166", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f75b3916b2b5c85119467b84230867d36f015c0931520b2b090dd992c88dd166", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f75b3916b2b5c85119467b84230867d36f015c0931520b2b090dd992c88dd166", kill_on_drop: false }`
[INFO] [stdout] f75b3916b2b5c85119467b84230867d36f015c0931520b2b090dd992c88dd166
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 86a381edba43d1c356a1f84804933bf849263f21e51628b554e4abc5191bfc1a
[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" "86a381edba43d1c356a1f84804933bf849263f21e51628b554e4abc5191bfc1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling ryu v0.2.8
[INFO] [stderr]    Compiling rustc-demangle v0.1.9
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]    Compiling bytecount v0.3.2
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]     Checking byteorder v1.2.3
[INFO] [stderr]     Checking opaque-debug v0.2.1
[INFO] [stderr]     Checking byte-tools v0.3.0
[INFO] [stderr]     Checking arrayref v0.3.4
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking bit_field v0.10.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling lz4-sys v1.8.3
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]     Checking block-padding v0.1.2
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]     Checking block-buffer v0.3.3
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]     Checking dirs v1.0.4
[INFO] [stderr]     Checking generic-array v0.12.0
[INFO] [stderr]     Checking generic-array v0.9.0
[INFO] [stderr]    Compiling pulldown-cmark v0.1.2
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]     Checking elf v0.0.10
[INFO] [stderr]     Checking blz-nx v1.0.1
[INFO] [stderr]     Checking digest v0.7.5
[INFO] [stderr]     Checking block-cipher-trait v0.6.2
[INFO] [stderr]     Checking dbl v0.2.0
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking sha2 v0.7.1
[INFO] [stderr]     Checking aes-soft v0.3.2
[INFO] [stderr]     Checking block-modes v0.2.0
[INFO] [stderr]     Checking cmac v0.2.0
[INFO] [stderr]    Compiling rand v0.4.3
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling quote v0.6.4
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]     Checking aes v0.3.2
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling derive_more v0.13.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]     Checking failure v0.1.3
[INFO] [stderr]    Compiling cargo_metadata v0.5.8
[INFO] [stderr]    Compiling skeptic v0.13.3
[INFO] [stderr]    Compiling lz4 v1.23.1
[INFO] [stderr]     Checking linkle v0.2.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 18s
[INFO] running `Command { std: "docker" "inspect" "86a381edba43d1c356a1f84804933bf849263f21e51628b554e4abc5191bfc1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86a381edba43d1c356a1f84804933bf849263f21e51628b554e4abc5191bfc1a", kill_on_drop: false }`
[INFO] [stdout] 86a381edba43d1c356a1f84804933bf849263f21e51628b554e4abc5191bfc1a