[INFO] cloning repository https://github.com/pelyams/lock-freedom
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pelyams/lock-freedom" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpelyams%2Flock-freedom", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpelyams%2Flock-freedom'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1df862aff487da26d53489432a3e8ac1fae62abc
[INFO] checking pelyams/lock-freedom against try#f3dc08d20a1589b87bde75bb82ee6423307f9bde for pr-135733
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpelyams%2Flock-freedom" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pelyams/lock-freedom on toolchain f3dc08d20a1589b87bde75bb82ee6423307f9bde
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f3dc08d20a1589b87bde75bb82ee6423307f9bde" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pelyams/lock-freedom
[INFO] finished tweaking git repo https://github.com/pelyams/lock-freedom
[INFO] tweaked toml for git repo https://github.com/pelyams/lock-freedom written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/pelyams/lock-freedom 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" "+f3dc08d20a1589b87bde75bb82ee6423307f9bde" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+f3dc08d20a1589b87bde75bb82ee6423307f9bde" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 46ef06bc6a848467e7ac73a27104d55be0bc932ed35eef3eb340251490898856
[INFO] running `Command { std: "docker" "start" "-a" "46ef06bc6a848467e7ac73a27104d55be0bc932ed35eef3eb340251490898856", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46ef06bc6a848467e7ac73a27104d55be0bc932ed35eef3eb340251490898856", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46ef06bc6a848467e7ac73a27104d55be0bc932ed35eef3eb340251490898856", kill_on_drop: false }`
[INFO] [stdout] 46ef06bc6a848467e7ac73a27104d55be0bc932ed35eef3eb340251490898856
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+f3dc08d20a1589b87bde75bb82ee6423307f9bde" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e90101d871d233d625cb1b0faa7fc57a7e23583a0ea51bd13c881edd2f80213c
[INFO] running `Command { std: "docker" "start" "-a" "e90101d871d233d625cb1b0faa7fc57a7e23583a0ea51bd13c881edd2f80213c", kill_on_drop: false }`
[INFO] [stderr]     Checking lock-freedom v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0585]: found a documentation comment that doesn't document anything
[INFO] [stdout]   --> src/mechanisms/rcu.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |         /// need to design a mechanism for releasing after grace period
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: doc comments must come before what they document, if a comment was intended use `//`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0585]: found a documentation comment that doesn't document anything
[INFO] [stdout]   --> src/mechanisms/rcu.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         /// hence, should we have a lock or wri
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: doc comments must come before what they document, if a comment was intended use `//`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0585]: found a documentation comment that doesn't document anything
[INFO] [stdout]   --> src/mechanisms/rcu.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |         /// need to design a mechanism for releasing after grace period
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: doc comments must come before what they document, if a comment was intended use `//`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0585]: found a documentation comment that doesn't document anything
[INFO] [stdout]   --> src/mechanisms/rcu.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         /// hence, should we have a lock or wri
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: doc comments must come before what they document, if a comment was intended use `//`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Ordering`
[INFO] [stdout]  --> src/mechanisms/rcu.rs:2:48
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::sync::atomic::{AtomicPtr, AtomicBool, Ordering};
[INFO] [stdout]   |                                                ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Ordering`
[INFO] [stdout]  --> src/mechanisms/rcu.rs:2:48
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::sync::atomic::{AtomicPtr, AtomicBool, Ordering};
[INFO] [stdout]   |                                                ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/mechanisms/rcu.rs:11:21
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn new() -> Self {}
[INFO] [stdout]    |            ---      ^^^^ expected `RCU<T>`, found `()`
[INFO] [stdout]    |            |
[INFO] [stdout]    |            implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `RCU<T>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/mechanisms/rcu.rs:11:21
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn new() -> Self {}
[INFO] [stdout]    |            ---      ^^^^ expected `RCU<T>`, found `()`
[INFO] [stdout]    |            |
[INFO] [stdout]    |            implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `RCU<T>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0585.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0585.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lock-freedom` (lib test) due to 3 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `lock-freedom` (lib) due to 3 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "e90101d871d233d625cb1b0faa7fc57a7e23583a0ea51bd13c881edd2f80213c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e90101d871d233d625cb1b0faa7fc57a7e23583a0ea51bd13c881edd2f80213c", kill_on_drop: false }`
[INFO] [stdout] e90101d871d233d625cb1b0faa7fc57a7e23583a0ea51bd13c881edd2f80213c