[INFO] fetching crate realfft 2.0.1...
[INFO] checking realfft-2.0.1 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] extracting crate realfft 2.0.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate realfft 2.0.1 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] started tweaking crates.io crate realfft 2.0.1
[INFO] finished tweaking crates.io crate realfft 2.0.1
[INFO] tweaked toml for crates.io crate realfft 2.0.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate realfft 2.0.1 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 primal-check v0.3.1
[INFO] [stderr]   Downloaded strength_reduce v0.2.3
[INFO] [stderr]   Downloaded transpose v0.2.1
[INFO] [stderr]   Downloaded rustfft v6.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f25186fc4198df38d2650a093520422a0589c81a28d52639e0d86deaaabff2ad
[INFO] running `Command { std: "docker" "start" "-a" "f25186fc4198df38d2650a093520422a0589c81a28d52639e0d86deaaabff2ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f25186fc4198df38d2650a093520422a0589c81a28d52639e0d86deaaabff2ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f25186fc4198df38d2650a093520422a0589c81a28d52639e0d86deaaabff2ad", kill_on_drop: false }`
[INFO] [stdout] f25186fc4198df38d2650a093520422a0589c81a28d52639e0d86deaaabff2ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] fbcd52bcd1917ed97b9183a423e7dfe5fc47ea6bbe29eac6002dceb1e093e8b8
[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" "fbcd52bcd1917ed97b9183a423e7dfe5fc47ea6bbe29eac6002dceb1e093e8b8", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking plotters-backend v0.3.0
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking half v1.7.1
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]    Compiling cast v0.2.5
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking plotters-svg v0.3.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking bstr v0.2.15
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking crossbeam-epoch v0.9.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking plotters v0.3.0
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking primal-check v0.3.1
[INFO] [stderr]     Checking transpose v0.2.1
[INFO] [stderr]     Checking rustfft v6.0.0
[INFO] [stderr]     Checking rayon v1.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]     Checking realfft v2.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking criterion v0.3.4
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.37s
[INFO] running `Command { std: "docker" "inspect" "fbcd52bcd1917ed97b9183a423e7dfe5fc47ea6bbe29eac6002dceb1e093e8b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbcd52bcd1917ed97b9183a423e7dfe5fc47ea6bbe29eac6002dceb1e093e8b8", kill_on_drop: false }`
[INFO] [stdout] fbcd52bcd1917ed97b9183a423e7dfe5fc47ea6bbe29eac6002dceb1e093e8b8