[INFO] updating cached repository https://github.com/ogoodman/rust-tc
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 124ce7ac75776ecdcdb96bef779251a0eafba0d4
[INFO] checking ogoodman/rust-tc against master#e1beee4992ad4b235fc700bf7af1ee86f894ea53 for pr-74130
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fogoodman%2Frust-tc" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ogoodman/rust-tc on toolchain e1beee4992ad4b235fc700bf7af1ee86f894ea53
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ogoodman/rust-tc
[INFO] finished tweaking git repo https://github.com/ogoodman/rust-tc
[INFO] tweaked toml for git repo https://github.com/ogoodman/rust-tc written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/ogoodman/rust-tc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6abc2d2b355e070f76c19644747fed203a15cd3aa865463ee8eefefd85f3e7f8
[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" "6abc2d2b355e070f76c19644747fed203a15cd3aa865463ee8eefefd85f3e7f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6abc2d2b355e070f76c19644747fed203a15cd3aa865463ee8eefefd85f3e7f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6abc2d2b355e070f76c19644747fed203a15cd3aa865463ee8eefefd85f3e7f8", kill_on_drop: false }`
[INFO] [stdout] 6abc2d2b355e070f76c19644747fed203a15cd3aa865463ee8eefefd85f3e7f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 48864af3a5e262790a1c77d25cdcf0e17aca5e85637702ce28d78d47e1e606e1
[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" "48864af3a5e262790a1c77d25cdcf0e17aca5e85637702ce28d78d47e1e606e1", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]     Checking rust-tc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/list.rs:32:34
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn next(&mut self) -> Option<(&'a [u8])> {
[INFO] [stdout]    |                                  ^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:83:36
[INFO] [stdout]    |
[INFO] [stdout] 83 |         let op = (op as *const Box<Cmp>).as_ref().unwrap();
[INFO] [stdout]    |                                    ^^^ help: use `dyn`: `dyn Cmp`
[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/lib.rs:90:25
[INFO] [stdout]    |
[INFO] [stdout] 90 | fn new_cmp_ptr(cmp: Box<Cmp>) -> *mut libc::c_void {
[INFO] [stdout]    |                         ^^^ help: use `dyn`: `dyn Cmp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:95:33
[INFO] [stdout]    |
[INFO] [stdout] 95 |     Box::from_raw(p as *mut Box<Cmp>);
[INFO] [stdout]    |                                 ^^^ help: use `dyn`: `dyn Cmp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:151:39
[INFO] [stdout]     |
[INFO] [stdout] 151 |     pub fn setcmp(&mut self, cmp: Box<Cmp>) -> Result<()> {
[INFO] [stdout]     |                                       ^^^ help: use `dyn`: `dyn Cmp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/list.rs:32:34
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn next(&mut self) -> Option<(&'a [u8])> {
[INFO] [stdout]    |                                  ^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:83:36
[INFO] [stdout]    |
[INFO] [stdout] 83 |         let op = (op as *const Box<Cmp>).as_ref().unwrap();
[INFO] [stdout]    |                                    ^^^ help: use `dyn`: `dyn Cmp`
[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/lib.rs:90:25
[INFO] [stdout]    |
[INFO] [stdout] 90 | fn new_cmp_ptr(cmp: Box<Cmp>) -> *mut libc::c_void {
[INFO] [stdout]    |                         ^^^ help: use `dyn`: `dyn Cmp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:95:33
[INFO] [stdout]    |
[INFO] [stdout] 95 |     Box::from_raw(p as *mut Box<Cmp>);
[INFO] [stdout]    |                                 ^^^ help: use `dyn`: `dyn Cmp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:151:39
[INFO] [stdout]     |
[INFO] [stdout] 151 |     pub fn setcmp(&mut self, cmp: Box<Cmp>) -> Result<()> {
[INFO] [stdout]     |                                       ^^^ help: use `dyn`: `dyn Cmp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.98s
[INFO] running `Command { std: "docker" "inspect" "48864af3a5e262790a1c77d25cdcf0e17aca5e85637702ce28d78d47e1e606e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48864af3a5e262790a1c77d25cdcf0e17aca5e85637702ce28d78d47e1e606e1", kill_on_drop: false }`
[INFO] [stdout] 48864af3a5e262790a1c77d25cdcf0e17aca5e85637702ce28d78d47e1e606e1