[INFO] cloning repository https://github.com/jcfangc/witnessed
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jcfangc/witnessed" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjcfangc%2Fwitnessed", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjcfangc%2Fwitnessed'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3e5895c7cf7f488179313cdf95b0489b24aeb449
[INFO] checking jcfangc/witnessed against try#7b3da9103634dffd4f4365cfd8642427c781d99f+rustflags=-Dinherent-method-on-receiver for 152214-denied-retry-0
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjcfangc%2Fwitnessed" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jcfangc/witnessed
[INFO] finished tweaking git repo https://github.com/jcfangc/witnessed
[INFO] tweaked toml for git repo https://github.com/jcfangc/witnessed written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jcfangc/witnessed on toolchain 7b3da9103634dffd4f4365cfd8642427c781d99f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jcfangc/witnessed already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "fetch" "--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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d51844eedb5ee867269d2af922c31ebb0ed379cc67ec90be3fac6730482e097c
[INFO] running `Command { std: "docker" "start" "-a" "d51844eedb5ee867269d2af922c31ebb0ed379cc67ec90be3fac6730482e097c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d51844eedb5ee867269d2af922c31ebb0ed379cc67ec90be3fac6730482e097c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d51844eedb5ee867269d2af922c31ebb0ed379cc67ec90be3fac6730482e097c", kill_on_drop: false }`
[INFO] [stdout] d51844eedb5ee867269d2af922c31ebb0ed379cc67ec90be3fac6730482e097c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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 -Dinherent-method-on-receiver" "-e" "RUSTDOCFLAGS=--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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd36011b4e32191edb20481f07dfe1d0e4dd7ae3a89a26103dc2cafc7d7f512a
[INFO] running `Command { std: "docker" "start" "-a" "fd36011b4e32191edb20481f07dfe1d0e4dd7ae3a89a26103dc2cafc7d7f512a", kill_on_drop: false }`
[INFO] [stderr]     Checking witnessed v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]    --> src/witnessed.rs:248:27
[INFO] [stdout]     |
[INFO] [stdout] 248 |         pub fn into_inner(self) -> T {
[INFO] [stdout]     |                           ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 273 |     impl<T, W: Witness<T>> Deref for Witnessed<T, W> {
[INFO] [stdout]     |     ------------------------------------------------ trait implemented here
[INFO] [stdout] 274 |         type Target = T;
[INFO] [stdout]     |         ----------- with `Target` set here
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D inherent-method-on-receiver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `witnessed` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `witnessed` (lib test) due to 1 previous error
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]    --> src/witnessed.rs:248:27
[INFO] [stdout]     |
[INFO] [stdout] 248 |         pub fn into_inner(self) -> T {
[INFO] [stdout]     |                           ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 273 |     impl<T, W: Witness<T>> Deref for Witnessed<T, W> {
[INFO] [stdout]     |     ------------------------------------------------ trait implemented here
[INFO] [stdout] 274 |         type Target = T;
[INFO] [stdout]     |         ----------- with `Target` set here
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D inherent-method-on-receiver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fd36011b4e32191edb20481f07dfe1d0e4dd7ae3a89a26103dc2cafc7d7f512a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd36011b4e32191edb20481f07dfe1d0e4dd7ae3a89a26103dc2cafc7d7f512a", kill_on_drop: false }`
[INFO] [stdout] fd36011b4e32191edb20481f07dfe1d0e4dd7ae3a89a26103dc2cafc7d7f512a