[INFO] fetching crate twelf 0.1.7... [INFO] testing twelf-0.1.7 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031 [INFO] extracting crate twelf 0.1.7 into /workspace/builds/worker-9/source [INFO] validating manifest of crates.io crate twelf 0.1.7 on toolchain 722e1797249a965b6335aebd65d777f917e498f1 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate twelf 0.1.7 [INFO] finished tweaking crates.io crate twelf 0.1.7 [INFO] tweaked toml for crates.io crate twelf 0.1.7 written to /workspace/builds/worker-9/source/Cargo.toml [INFO] crate crates.io crate twelf 0.1.7 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded result v1.0.0 [INFO] [stderr] Downloaded sha2 v0.9.3 [INFO] [stderr] Downloaded wasm-bindgen-macro-support v0.2.71 [INFO] [stderr] Downloaded wasm-bindgen-backend v0.2.71 [INFO] [stderr] Downloaded wasm-bindgen v0.2.71 [INFO] [stderr] Downloaded mio v0.7.9 [INFO] [stderr] Downloaded security-framework-sys v2.1.1 [INFO] [stderr] Downloaded elsa v1.4.0 [INFO] [stderr] Downloaded h2 v0.3.1 [INFO] [stderr] Downloaded openssl-sys v0.9.61 [INFO] [stderr] Downloaded pretty v0.5.2 [INFO] [stderr] Downloaded abnf_to_pest v0.5.0 [INFO] [stderr] Downloaded pest_consume v1.0.6 [INFO] [stderr] Downloaded abnf v0.6.1 [INFO] [stderr] Downloaded annotate-snippets v0.9.0 [INFO] [stderr] Downloaded tokio-util v0.6.4 [INFO] [stderr] Downloaded security-framework v2.1.2 [INFO] [stderr] Downloaded envy v0.4.1 [INFO] [stderr] Downloaded url v2.2.1 [INFO] [stderr] Downloaded reqwest v0.11.2 [INFO] [stderr] Downloaded config-derive v0.1.7 [INFO] [stderr] Downloaded tracing v0.1.25 [INFO] [stderr] Downloaded wasm-bindgen-futures v0.4.21 [INFO] [stderr] Downloaded pest_consume_macros v1.0.6 [INFO] [stderr] Downloaded wasm-bindgen-shared v0.2.71 [INFO] [stderr] Downloaded serde_ini v0.2.0 [INFO] [stderr] Downloaded js-sys v0.3.48 [INFO] [stderr] Downloaded dhall_proc_macros v0.5.0 [INFO] [stderr] Downloaded wasm-bindgen-macro v0.2.71 [INFO] [stderr] Downloaded serde_dhall v0.10.0 [INFO] [stderr] Downloaded dhall v0.10.0 [INFO] [stderr] Downloaded syn v1.0.64 [INFO] [stderr] Downloaded lexical-core v0.7.5 [INFO] [stderr] Downloaded tokio v1.3.0 [INFO] [stderr] Downloaded openssl v0.10.33 [INFO] [stderr] Downloaded idna v0.2.2 [INFO] [stderr] Downloaded web-sys v0.3.48 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", 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] 251661e8a45f976d5b82db972c94d13f1f541ecf2c23b4e0c7b7670bd468c5bd [INFO] running `Command { std: "docker" "start" "-a" "251661e8a45f976d5b82db972c94d13f1f541ecf2c23b4e0c7b7670bd468c5bd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "251661e8a45f976d5b82db972c94d13f1f541ecf2c23b4e0c7b7670bd468c5bd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "251661e8a45f976d5b82db972c94d13f1f541ecf2c23b4e0c7b7670bd468c5bd", kill_on_drop: false }` [INFO] [stdout] 251661e8a45f976d5b82db972c94d13f1f541ecf2c23b4e0c7b7670bd468c5bd [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 96cd2e9f4cb7b89f71c46a8a2c8206915fae739f63741bb0f16a5726796bf185 [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" "96cd2e9f4cb7b89f71c46a8a2c8206915fae739f63741bb0f16a5726796bf185", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.64 [INFO] [stderr] Compiling libc v0.2.88 [INFO] [stderr] Compiling cc v1.0.67 [INFO] [stderr] Compiling itoa v0.4.7 [INFO] [stderr] Compiling openssl v0.10.33 [INFO] [stderr] Compiling foreign-types-shared v0.1.1 [INFO] [stderr] Compiling typenum v1.13.0 [INFO] [stderr] Compiling fnv v1.0.7 [INFO] [stderr] Compiling tinyvec_macros v0.1.0 [INFO] [stderr] Compiling pin-utils v0.1.0 [INFO] [stderr] Compiling percent-encoding v2.1.0 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Compiling try-lock v0.2.3 [INFO] [stderr] Compiling httpdate v0.3.2 [INFO] [stderr] Compiling tower-service v0.3.1 [INFO] [stderr] Compiling linked-hash-map v0.5.4 [INFO] [stderr] Compiling unicode-segmentation v1.7.1 [INFO] [stderr] Compiling dtoa v0.4.7 [INFO] [stderr] Compiling result v1.0.0 [INFO] [stderr] Compiling void v1.0.2 [INFO] [stderr] Compiling indexmap v1.6.2 [INFO] [stderr] Compiling tokio v1.3.0 [INFO] [stderr] Compiling nom v5.1.2 [INFO] [stderr] Compiling tracing-core v0.1.17 [INFO] [stderr] Compiling itertools v0.9.0 [INFO] [stderr] Compiling pretty v0.5.2 [INFO] [stderr] Compiling annotate-snippets v0.9.0 [INFO] [stderr] Compiling elsa v1.4.0 [INFO] [stderr] Compiling tinyvec v1.1.1 [INFO] [stderr] Compiling foreign-types v0.3.2 [INFO] [stderr] Compiling http v0.2.3 [INFO] [stderr] Compiling form_urlencoded v1.0.1 [INFO] [stderr] Compiling yaml-rust v0.4.5 [INFO] [stderr] Compiling encoding_rs v0.8.28 [INFO] [stderr] Compiling futures-util v0.3.13 [INFO] [stderr] Compiling want v0.3.0 [INFO] [stderr] Compiling lexical-core v0.7.5 [INFO] [stderr] Compiling heck v0.3.2 [INFO] [stderr] Compiling tracing v0.1.25 [INFO] [stderr] Compiling mio v0.7.9 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling socket2 v0.3.19 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling clap v2.33.3 [INFO] [stderr] Compiling unicode-normalization v0.1.17 [INFO] [stderr] Compiling openssl-sys v0.9.61 [INFO] [stderr] Compiling generic-array v0.14.4 [INFO] [stderr] Compiling block-buffer v0.9.0 [INFO] [stderr] Compiling digest v0.9.0 [INFO] [stderr] Compiling sha2 v0.9.3 [INFO] [stderr] Compiling idna v0.2.2 [INFO] [stderr] Compiling native-tls v0.2.7 [INFO] [stderr] Compiling http-body v0.4.0 [INFO] [stderr] Compiling url v2.2.1 [INFO] [stderr] Compiling tokio-util v0.6.4 [INFO] [stderr] Compiling abnf v0.6.1 [INFO] [stderr] Compiling h2 v0.3.1 [INFO] [stderr] Compiling abnf_to_pest v0.5.0 [INFO] [stderr] Compiling pest_generator v2.1.3 [INFO] [stderr] Compiling tokio-native-tls v0.3.0 [INFO] [stderr] Compiling serde_derive v1.0.117 [INFO] [stderr] Compiling pin-project-internal v1.0.5 [INFO] [stderr] Compiling dhall v0.10.0 [INFO] [stderr] Compiling pest_consume_macros v1.0.6 [INFO] [stderr] Compiling pest_derive v2.1.0 [INFO] [stderr] Compiling dhall_proc_macros v0.5.0 [INFO] [stderr] Compiling thiserror-impl v1.0.24 [INFO] [stderr] Compiling config-derive v0.1.7 [INFO] [stderr] Compiling thiserror v1.0.24 [INFO] [stderr] Compiling pest_consume v1.0.6 [INFO] [stderr] Compiling pin-project v1.0.5 [INFO] [stderr] Compiling hyper v0.14.4 [INFO] [stderr] Compiling serde v1.0.117 [INFO] [stderr] Compiling hyper-tls v0.5.0 [INFO] [stderr] Compiling serde_urlencoded v0.7.0 [INFO] [stderr] Compiling serde_cbor v0.11.1 [INFO] [stderr] Compiling serde_json v1.0.64 [INFO] [stderr] Compiling toml v0.5.8 [INFO] [stderr] Compiling serde_yaml v0.8.17 [INFO] [stderr] Compiling envy v0.4.1 [INFO] [stderr] Compiling serde_ini v0.2.0 [INFO] [stderr] Compiling reqwest v0.11.2 [INFO] [stderr] Compiling serde_dhall v0.10.0 [INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a closure that returns `Result` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_dhall-0.10.0/src/value.rs:481:62 [INFO] [stdout] | [INFO] [stdout] 481 | ... .map(|v| Ok(Self::from_nir(v)?)) [INFO] [stdout] | ------------------------^- [INFO] [stdout] | | | [INFO] [stdout] | | use `.ok_or(...)?` to provide an error compatible with `std::result::Result` [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 `Option`s, not `Result`s, in a closure that returns `Option` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_dhall-0.10.0/src/value.rs:482:45 [INFO] [stdout] | [INFO] [stdout] 477 | .map(|(k, v)| { [INFO] [stdout] | __________________________- [INFO] [stdout] 478 | | Some(( [INFO] [stdout] 479 | | k.into(), [INFO] [stdout] 480 | | v.as_ref() [INFO] [stdout] 481 | | .map(|v| Ok(Self::from_nir(v)?)) [INFO] [stdout] 482 | | .transpose()?, [INFO] [stdout] | | ^ use `.ok()?` if you want to discard the `std::result::Result` error information [INFO] [stdout] 483 | | )) [INFO] [stdout] 484 | | }) [INFO] [stdout] | |_____________________- this function returns an `Option` [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromResidual>` is not implemented for `std::option::Option<(_, std::option::Option)>` [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 `serde_dhall` due to 3 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "96cd2e9f4cb7b89f71c46a8a2c8206915fae739f63741bb0f16a5726796bf185", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "96cd2e9f4cb7b89f71c46a8a2c8206915fae739f63741bb0f16a5726796bf185", kill_on_drop: false }` [INFO] [stdout] 96cd2e9f4cb7b89f71c46a8a2c8206915fae739f63741bb0f16a5726796bf185