[INFO] cloning repository https://github.com/redox-os/netutils
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/redox-os/netutils" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredox-os%2Fnetutils", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredox-os%2Fnetutils'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 85c159fdd8bbdc562afb5041ae40dde566bed538
[INFO] checking redox-os/netutils against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredox-os%2Fnetutils" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/redox-os/netutils 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 git repo https://github.com/redox-os/netutils
[INFO] finished tweaking git repo https://github.com/redox-os/netutils
[INFO] tweaked toml for git repo https://github.com/redox-os/netutils written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/redox-os/netutils 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]     Updating git repository `https://gitlab.redox-os.org/redox-os/arg-parser.git`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Updating git repository `https://gitlab.redox-os.org/redox-os/mio`
[INFO] [stderr]     Updating git repository `https://github.com/willem66745/ntpclient-rust`
[INFO] [stderr]     Updating git repository `https://github.com/a8m/pb`
[INFO] [stderr]     Updating git repository `https://gitlab.redox-os.org/redox-os/tokio`
[INFO] [stderr]     Updating git repository `https://gitlab.redox-os.org/redox-os/mio-uds`
[INFO] [stderr] error: the lock file /workspace/builds/worker-3/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://gitlab.redox-os.org/redox-os/arg-parser.git`
[INFO] [stderr]     Updating git repository `https://gitlab.redox-os.org/redox-os/libextra.git`
[INFO] [stderr]     Updating git repository `https://gitlab.redox-os.org/redox-os/mio`
[INFO] [stderr]     Updating git repository `https://github.com/willem66745/ntpclient-rust`
[INFO] [stderr]     Updating git repository `https://github.com/a8m/pb`
[INFO] [stderr]     Updating git repository `https://gitlab.redox-os.org/redox-os/event.git`
[INFO] [stderr]     Updating git repository `https://gitlab.redox-os.org/redox-os/tokio`
[INFO] [stderr]     Updating git repository `https://gitlab.redox-os.org/redox-os/mio-uds`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 49e6975496cb9b68641745f0bedf1649301d7212e09ee677465e986b670904a6
[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" "49e6975496cb9b68641745f0bedf1649301d7212e09ee677465e986b670904a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49e6975496cb9b68641745f0bedf1649301d7212e09ee677465e986b670904a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49e6975496cb9b68641745f0bedf1649301d7212e09ee677465e986b670904a6", kill_on_drop: false }`
[INFO] [stdout] 49e6975496cb9b68641745f0bedf1649301d7212e09ee677465e986b670904a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 104f019029165f4595031bb246616f62f81106dd0c034f53f65e326da18cc4b8
[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" "104f019029165f4595031bb246616f62f81106dd0c034f53f65e326da18cc4b8", kill_on_drop: false }`
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking arg_parser v0.1.0 (https://gitlab.redox-os.org/redox-os/arg-parser.git#1c434b55)
[INFO] [stderr]     Checking redox_syscall v0.1.57
[INFO] [stderr]     Checking extra v0.1.0 (https://gitlab.redox-os.org/redox-os/libextra.git#0b50f3f2)
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking tokio-executor v0.1.5 (https://gitlab.redox-os.org/redox-os/tokio#6c1f7a23)
[INFO] [stderr]    Compiling ring v0.13.5
[INFO] [stderr]    Compiling crossbeam-utils v0.8.4
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stdout] error[E0658]: trait bounds other than `Sized` on const fn parameters are unstable
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/redox_syscall-0.1.57/src/io/io.rs:29:6
[INFO] [stdout]    |
[INFO] [stdout] 29 | impl<I: Io> ReadOnly<I> {
[INFO] [stdout]    |      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #57563 <https://github.com/rust-lang/rust/issues/57563> for more information
[INFO] [stdout]    = help: add `#![feature(const_fn_trait_bound)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: trait bounds other than `Sized` on const fn parameters are unstable
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/redox_syscall-0.1.57/src/io/io.rs:51:6
[INFO] [stdout]    |
[INFO] [stdout] 51 | impl<I: Io> WriteOnly<I> {
[INFO] [stdout]    |      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #57563 <https://github.com/rust-lang/rust/issues/57563> for more information
[INFO] [stdout]    = help: add `#![feature(const_fn_trait_bound)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking ntpclient v0.0.1 (https://github.com/willem66745/ntpclient-rust#7e3bdf60)
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr]     Checking tokio-current-thread v0.1.4 (https://gitlab.redox-os.org/redox-os/tokio#6c1f7a23)
[INFO] [stderr] error: could not compile `redox_syscall`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "104f019029165f4595031bb246616f62f81106dd0c034f53f65e326da18cc4b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "104f019029165f4595031bb246616f62f81106dd0c034f53f65e326da18cc4b8", kill_on_drop: false }`
[INFO] [stdout] 104f019029165f4595031bb246616f62f81106dd0c034f53f65e326da18cc4b8