[INFO] fetching crate wxf-converter 0.3.0... [INFO] checking wxf-converter-0.3.0 against master#fc81ad22c453776de16acf9938976930cf8c9401 for pr-77325 [INFO] extracting crate wxf-converter 0.3.0 into /workspace/builds/worker-8/source [INFO] validating manifest of crates.io crate wxf-converter 0.3.0 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 wxf-converter 0.3.0 [INFO] finished tweaking crates.io crate wxf-converter 0.3.0 [INFO] tweaked toml for crates.io crate wxf-converter 0.3.0 written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate crates.io crate wxf-converter 0.3.0 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] c32affd6ff8b1cccce3440872308453047bbe49b2ee156511627c3cd9dafae4b [INFO] running `Command { std: "docker" "start" "-a" "c32affd6ff8b1cccce3440872308453047bbe49b2ee156511627c3cd9dafae4b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c32affd6ff8b1cccce3440872308453047bbe49b2ee156511627c3cd9dafae4b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c32affd6ff8b1cccce3440872308453047bbe49b2ee156511627c3cd9dafae4b", kill_on_drop: false }` [INFO] [stdout] c32affd6ff8b1cccce3440872308453047bbe49b2ee156511627c3cd9dafae4b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stdout] aa31bb05ff2aa89450dffb1a5bdef5fe53ef80f1150fada1faeb0e35c5903a8d [INFO] running `Command { std: "docker" "start" "-a" "aa31bb05ff2aa89450dffb1a5bdef5fe53ef80f1150fada1faeb0e35c5903a8d", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling serde v1.0.105 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking unicode-width v0.1.7 [INFO] [stderr] Checking iter-read v0.2.1 [INFO] [stderr] Checking bitflags v0.9.1 [INFO] [stderr] Checking ansi_term v0.9.0 [INFO] [stderr] Checking strsim v0.6.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking crc32fast v1.2.0 [INFO] [stderr] Checking textwrap v0.9.0 [INFO] [stderr] Checking clap v2.27.1 [INFO] [stderr] Checking flate2 v1.0.14 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Compiling num-integer v0.1.42 [INFO] [stderr] Compiling num-bigint v0.2.6 [INFO] [stderr] Compiling num-complex v0.2.4 [INFO] [stderr] Compiling num-rational v0.2.4 [INFO] [stderr] Compiling num-iter v0.1.40 [INFO] [stderr] Checking num v0.2.1 [INFO] [stderr] Checking serde_json v1.0.48 [INFO] [stderr] Checking serde-pickle v0.6.0 [INFO] [stderr] Checking wolfram_wxf v0.2.2 [INFO] [stderr] Checking wxf-converter v0.3.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a function that returns `Result` [INFO] [stdout] --> src/utils.rs:13:39 [INFO] [stdout] | [INFO] [stdout] 9 | / pub fn parse_file(path: &str, format: Option<&str>) -> Result { [INFO] [stdout] 10 | | let s = fs::read_to_string(path)?; [INFO] [stdout] 11 | | let suffix = match format { [INFO] [stdout] 12 | | Some(s) => s, [INFO] [stdout] 13 | | None => path.split('/').last()?.split('.').last()?, [INFO] [stdout] | | ^ use `.ok_or(...)?` to provide an error compatible with `Result` [INFO] [stdout] ... | [INFO] [stdout] 26 | | } [INFO] [stdout] 27 | | } [INFO] [stdout] | |_- this function returns a `Result` [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromResidual>` is not implemented for `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 function that returns `Result` [INFO] [stdout] --> src/utils.rs:13:58 [INFO] [stdout] | [INFO] [stdout] 9 | / pub fn parse_file(path: &str, format: Option<&str>) -> Result { [INFO] [stdout] 10 | | let s = fs::read_to_string(path)?; [INFO] [stdout] 11 | | let suffix = match format { [INFO] [stdout] 12 | | Some(s) => s, [INFO] [stdout] 13 | | None => path.split('/').last()?.split('.').last()?, [INFO] [stdout] | | ^ use `.ok_or(...)?` to provide an error compatible with `Result` [INFO] [stdout] ... | [INFO] [stdout] 26 | | } [INFO] [stdout] 27 | | } [INFO] [stdout] | |_- this function returns a `Result` [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromResidual>` is not implemented for `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 function that returns `Result` [INFO] [stdout] --> src/utils.rs:13:39 [INFO] [stdout] | [INFO] [stdout] 9 | / pub fn parse_file(path: &str, format: Option<&str>) -> Result { [INFO] [stdout] 10 | | let s = fs::read_to_string(path)?; [INFO] [stdout] 11 | | let suffix = match format { [INFO] [stdout] 12 | | Some(s) => s, [INFO] [stdout] 13 | | None => path.split('/').last()?.split('.').last()?, [INFO] [stdout] | | ^ use `.ok_or(...)?` to provide an error compatible with `Result` [INFO] [stdout] ... | [INFO] [stdout] 26 | | } [INFO] [stdout] 27 | | } [INFO] [stdout] | |_- this function returns a `Result` [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromResidual>` is not implemented for `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 function that returns `Result` [INFO] [stdout] --> src/utils.rs:13:58 [INFO] [stdout] | [INFO] [stdout] 9 | / pub fn parse_file(path: &str, format: Option<&str>) -> Result { [INFO] [stdout] 10 | | let s = fs::read_to_string(path)?; [INFO] [stdout] 11 | | let suffix = match format { [INFO] [stdout] 12 | | Some(s) => s, [INFO] [stdout] 13 | | None => path.split('/').last()?.split('.').last()?, [INFO] [stdout] | | ^ use `.ok_or(...)?` to provide an error compatible with `Result` [INFO] [stdout] ... | [INFO] [stdout] 26 | | } [INFO] [stdout] 27 | | } [INFO] [stdout] | |_- this function returns a `Result` [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromResidual>` is not implemented for `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] [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 `wxf-converter` [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" "aa31bb05ff2aa89450dffb1a5bdef5fe53ef80f1150fada1faeb0e35c5903a8d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "aa31bb05ff2aa89450dffb1a5bdef5fe53ef80f1150fada1faeb0e35c5903a8d", kill_on_drop: false }` [INFO] [stdout] aa31bb05ff2aa89450dffb1a5bdef5fe53ef80f1150fada1faeb0e35c5903a8d