[INFO] cloning repository https://github.com/seunlanlege/futures-shared-state-channel
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/seunlanlege/futures-shared-state-channel" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseunlanlege%2Ffutures-shared-state-channel", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseunlanlege%2Ffutures-shared-state-channel'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 715376e0ab8756b7ebf06ed4bf6281bed933eccc
[INFO] checking seunlanlege/futures-shared-state-channel against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseunlanlege%2Ffutures-shared-state-channel" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/seunlanlege/futures-shared-state-channel on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/seunlanlege/futures-shared-state-channel
[INFO] finished tweaking git repo https://github.com/seunlanlege/futures-shared-state-channel
[INFO] tweaked toml for git repo https://github.com/seunlanlege/futures-shared-state-channel written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/seunlanlege/futures-shared-state-channel already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 43924e75ad84282ba9ce38d4822e621461309b35fcdffbaeb9e29746e7118157
[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" "43924e75ad84282ba9ce38d4822e621461309b35fcdffbaeb9e29746e7118157", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43924e75ad84282ba9ce38d4822e621461309b35fcdffbaeb9e29746e7118157", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43924e75ad84282ba9ce38d4822e621461309b35fcdffbaeb9e29746e7118157", kill_on_drop: false }`
[INFO] [stdout] 43924e75ad84282ba9ce38d4822e621461309b35fcdffbaeb9e29746e7118157
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b8b7cbd307ee42475886be7733570bd1a6c9bdb39c3340eeeec19982d3c4cf9
[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" "6b8b7cbd307ee42475886be7733570bd1a6c9bdb39c3340eeeec19982d3c4cf9", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-task v0.3.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking futures-executor v0.3.1
[INFO] [stderr]     Checking futures-shared-state-channel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0412]: cannot find type `T` in this scope
[INFO] [stdout]    --> src/lib.rs:157:20
[INFO] [stdout]     |
[INFO] [stdout] 156 | struct AtomicBorrowRef<'b> {
[INFO] [stdout]     |                          - help: you might be missing a type parameter: `, T`
[INFO] [stdout] 157 |     cell: &'b RefCell<T>,
[INFO] [stdout]     |                       ^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `T` in this scope
[INFO] [stdout]    --> src/lib.rs:163:21
[INFO] [stdout]     |
[INFO] [stdout] 163 |         cell: &'b RefCell<T>,
[INFO] [stdout]     |                           ^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Arc`
[INFO] [stdout]   --> src/lib.rs:15:47
[INFO] [stdout]    |
[INFO] [stdout] 15 |     atomic::{AtomicUsize, AtomicBool, Ordering}, Arc,
[INFO] [stdout]    |                                                  ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `futures-shared-state-channel`.
[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" "6b8b7cbd307ee42475886be7733570bd1a6c9bdb39c3340eeeec19982d3c4cf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b8b7cbd307ee42475886be7733570bd1a6c9bdb39c3340eeeec19982d3c4cf9", kill_on_drop: false }`
[INFO] [stdout] 6b8b7cbd307ee42475886be7733570bd1a6c9bdb39c3340eeeec19982d3c4cf9