[INFO] cloning repository https://github.com/ahouts/rwc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ahouts/rwc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fahouts%2Frwc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fahouts%2Frwc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f8d8d1e5f7463d8e1ac672b3d3cd4bb248c8b4c4
[INFO] checking ahouts/rwc against try#b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8 for pr-78363
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fahouts%2Frwc" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ahouts/rwc on toolchain b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ahouts/rwc
[INFO] finished tweaking git repo https://github.com/ahouts/rwc
[INFO] tweaked toml for git repo https://github.com/ahouts/rwc written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/ahouts/rwc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded utf-8 v0.7.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7794a391f2e115e76b6084229e76e659225a9d40d3b8550270fb5a5909ad9d96
[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" "7794a391f2e115e76b6084229e76e659225a9d40d3b8550270fb5a5909ad9d96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7794a391f2e115e76b6084229e76e659225a9d40d3b8550270fb5a5909ad9d96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7794a391f2e115e76b6084229e76e659225a9d40d3b8550270fb5a5909ad9d96", kill_on_drop: false }`
[INFO] [stdout] 7794a391f2e115e76b6084229e76e659225a9d40d3b8550270fb5a5909ad9d96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d488be9690ecf6473121425b2a2317db9cda52b7c98f1f05caf290b8702b49b
[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" "4d488be9690ecf6473121425b2a2317db9cda52b7c98f1f05caf290b8702b49b", kill_on_drop: false }`
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking arrayvec v0.4.8
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking rwc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/counts.rs:25:42
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn display<'a>(&self, w: &'a mut Write, filename: &str, opt: &Options) -> io::Result<()> {
[INFO] [stdout]    |                                          ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reader.rs:12:53
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn get_buff_reader<'a>(&'a mut self) -> Box<BufRead + 'a> {
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^ help: use `dyn`: `dyn BufRead + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/counts.rs:25:42
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn display<'a>(&self, w: &'a mut Write, filename: &str, opt: &Options) -> io::Result<()> {
[INFO] [stdout]    |                                          ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reader.rs:12:53
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn get_buff_reader<'a>(&'a mut self) -> Box<BufRead + 'a> {
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^ help: use `dyn`: `dyn BufRead + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.94s
[INFO] running `Command { std: "docker" "inspect" "4d488be9690ecf6473121425b2a2317db9cda52b7c98f1f05caf290b8702b49b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d488be9690ecf6473121425b2a2317db9cda52b7c98f1f05caf290b8702b49b", kill_on_drop: false }`
[INFO] [stdout] 4d488be9690ecf6473121425b2a2317db9cda52b7c98f1f05caf290b8702b49b