[INFO] fetching crate nightfall 0.1.3... [INFO] checking nightfall-0.1.3 against master#fc81ad22c453776de16acf9938976930cf8c9401 for pr-77325 [INFO] extracting crate nightfall 0.1.3 into /workspace/builds/worker-0/source [INFO] validating manifest of crates.io crate nightfall 0.1.3 on toolchain fc81ad22c453776de16acf9938976930cf8c9401 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate nightfall 0.1.3 [INFO] finished tweaking crates.io crate nightfall 0.1.3 [INFO] tweaked toml for crates.io crate nightfall 0.1.3 written to /workspace/builds/worker-0/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6d2a500df792ac32550ea6b1a260a0d42a83f59b9f40d5981894216b0aee1f3f [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" "6d2a500df792ac32550ea6b1a260a0d42a83f59b9f40d5981894216b0aee1f3f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6d2a500df792ac32550ea6b1a260a0d42a83f59b9f40d5981894216b0aee1f3f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6d2a500df792ac32550ea6b1a260a0d42a83f59b9f40d5981894216b0aee1f3f", kill_on_drop: false }` [INFO] [stdout] 6d2a500df792ac32550ea6b1a260a0d42a83f59b9f40d5981894216b0aee1f3f [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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] d85f14563aa7095760654b3a7b96cb199f49c19d050cd10058db7cbae5a5a9e2 [INFO] running `Command { std: "docker" "start" "-a" "d85f14563aa7095760654b3a7b96cb199f49c19d050cd10058db7cbae5a5a9e2", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.27 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling libc v0.2.96 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling version_check v0.9.3 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Compiling proc-macro-nested v0.1.7 [INFO] [stderr] Compiling futures-task v0.3.15 [INFO] [stderr] Checking pin-project-lite v0.2.6 [INFO] [stderr] Compiling async-trait v0.1.50 [INFO] [stderr] Checking futures-sink v0.3.15 [INFO] [stderr] Checking pin-utils v0.1.0 [INFO] [stderr] Checking spin v0.7.1 [INFO] [stderr] Compiling slog v2.7.0 [INFO] [stderr] Checking bytes v1.0.1 [INFO] [stderr] Checking pollster v0.2.4 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Checking platforms v0.2.1 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling serde_derive v1.0.126 [INFO] [stderr] Compiling serde v1.0.126 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling serde_json v1.0.64 [INFO] [stderr] Checking catty v0.1.4 [INFO] [stderr] Checking spinning_top v0.2.4 [INFO] [stderr] Checking spinny v0.2.2 [INFO] [stderr] Compiling err-derive v0.3.0 [INFO] [stderr] Checking barrage v0.2.1 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling futures-macro v0.3.15 [INFO] [stderr] Compiling futures-util v0.3.15 [INFO] [stderr] Compiling tokio v1.6.1 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling syn v1.0.72 [INFO] [stderr] Checking signal-hook-registry v1.4.0 [INFO] [stderr] Checking mio v0.7.11 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking getrandom v0.2.3 [INFO] [stderr] Checking nix v0.17.0 [INFO] [stderr] Checking nix v0.20.0 [INFO] [stderr] Checking uuid v0.8.2 [INFO] [stderr] Compiling synstructure v0.12.4 [INFO] [stderr] Compiling pin-project-internal v1.0.7 [INFO] [stderr] Compiling thiserror-impl v1.0.25 [INFO] [stderr] Compiling tokio-macros v1.2.0 [INFO] [stderr] Compiling derive_more v0.99.14 [INFO] [stderr] Compiling xtra_proc v0.1.0 [INFO] [stderr] Checking thiserror v1.0.25 [INFO] [stderr] Checking psutil v3.2.1 [INFO] [stderr] Checking pin-project v1.0.7 [INFO] [stderr] Checking flume v0.10.5 [INFO] [stderr] Checking xtra v0.5.1 [INFO] [stderr] Checking tokio-stream v0.1.6 [INFO] [stderr] Checking nightfall v0.1.3 (/opt/rustwide/workdir) [INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result` [INFO] [stdout] --> src/session.rs:264:33 [INFO] [stdout] | [INFO] [stdout] 262 | / pub fn get_key(&self, k: &str) -> Result { [INFO] [stdout] 263 | | let session = STREAMING_SESSION.read().unwrap(); [INFO] [stdout] 264 | | Ok(session.get(&self.id)?.get(k)?.clone()) [INFO] [stdout] | | ^ use `.ok_or(...)?` to provide an error compatible with `std::result::Result` [INFO] [stdout] 265 | | } [INFO] [stdout] | |_____- this function returns a `Result` [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromResidual>` is not implemented for `std::result::Result` [INFO] [stdout] = note: required by `from_residual` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result` [INFO] [stdout] --> src/session.rs:264:41 [INFO] [stdout] | [INFO] [stdout] 262 | / pub fn get_key(&self, k: &str) -> Result { [INFO] [stdout] 263 | | let session = STREAMING_SESSION.read().unwrap(); [INFO] [stdout] 264 | | Ok(session.get(&self.id)?.get(k)?.clone()) [INFO] [stdout] | | ^ use `.ok_or(...)?` to provide an error compatible with `std::result::Result` [INFO] [stdout] 265 | | } [INFO] [stdout] | |_____- this function returns a `Result` [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromResidual>` is not implemented for `std::result::Result` [INFO] [stdout] = note: required by `from_residual` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] error: could not compile `nightfall` [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] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result` [INFO] [stdout] --> src/session.rs:264:33 [INFO] [stdout] | [INFO] [stdout] 262 | / pub fn get_key(&self, k: &str) -> Result { [INFO] [stdout] 263 | | let session = STREAMING_SESSION.read().unwrap(); [INFO] [stdout] 264 | | Ok(session.get(&self.id)?.get(k)?.clone()) [INFO] [stdout] | | ^ use `.ok_or(...)?` to provide an error compatible with `std::result::Result` [INFO] [stdout] 265 | | } [INFO] [stdout] | |_____- this function returns a `Result` [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromResidual>` is not implemented for `std::result::Result` [INFO] [stdout] = note: required by `from_residual` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result` [INFO] [stdout] --> src/session.rs:264:41 [INFO] [stdout] | [INFO] [stdout] 262 | / pub fn get_key(&self, k: &str) -> Result { [INFO] [stdout] 263 | | let session = STREAMING_SESSION.read().unwrap(); [INFO] [stdout] 264 | | Ok(session.get(&self.id)?.get(k)?.clone()) [INFO] [stdout] | | ^ use `.ok_or(...)?` to provide an error compatible with `std::result::Result` [INFO] [stdout] 265 | | } [INFO] [stdout] | |_____- this function returns a `Result` [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromResidual>` is not implemented for `std::result::Result` [INFO] [stdout] = note: required by `from_residual` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "d85f14563aa7095760654b3a7b96cb199f49c19d050cd10058db7cbae5a5a9e2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d85f14563aa7095760654b3a7b96cb199f49c19d050cd10058db7cbae5a5a9e2", kill_on_drop: false }` [INFO] [stdout] d85f14563aa7095760654b3a7b96cb199f49c19d050cd10058db7cbae5a5a9e2