[INFO] cloning repository https://github.com/olvyko/rust-analyzer-tests-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/olvyko/rust-analyzer-tests-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Folvyko%2Frust-analyzer-tests-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Folvyko%2Frust-analyzer-tests-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a779074b1670702e06e2e6dcbc27f7f53042ecfe
[INFO] checking olvyko/rust-analyzer-tests-example against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Folvyko%2Frust-analyzer-tests-example" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/olvyko/rust-analyzer-tests-example on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/olvyko/rust-analyzer-tests-example
[INFO] finished tweaking git repo https://github.com/olvyko/rust-analyzer-tests-example
[INFO] tweaked toml for git repo https://github.com/olvyko/rust-analyzer-tests-example written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/olvyko/rust-analyzer-tests-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4aac39aa3cb0989f915c68b76ab2e5fd69ea80e22e9dbe9dac567d1425a7c095
[INFO] running `Command { std: "docker" "start" "-a" "4aac39aa3cb0989f915c68b76ab2e5fd69ea80e22e9dbe9dac567d1425a7c095", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4aac39aa3cb0989f915c68b76ab2e5fd69ea80e22e9dbe9dac567d1425a7c095", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4aac39aa3cb0989f915c68b76ab2e5fd69ea80e22e9dbe9dac567d1425a7c095", kill_on_drop: false }`
[INFO] [stdout] 4aac39aa3cb0989f915c68b76ab2e5fd69ea80e22e9dbe9dac567d1425a7c095
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93df75e4e4433c4f4a8af931ded03cbb3f81a547615ad3e21334be51656c4b21
[INFO] running `Command { std: "docker" "start" "-a" "93df75e4e4433c4f4a8af931ded03cbb3f81a547615ad3e21334be51656c4b21", kill_on_drop: false }`
[INFO] [stderr]     Checking module2 v0.1.0 (/opt/rustwide/workdir/modules/module2)
[INFO] [stderr]     Checking module1 v0.1.0 (/opt/rustwide/workdir/modules/module1)
[INFO] [stderr]     Checking rust-analyzer-tests-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find value `error` in this scope
[INFO] [stdout]  --> modules/module1/tests/module1.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     error?
[INFO] [stdout]   |     ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `error` in this scope
[INFO] [stdout]  --> modules/module2/tests/module2.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     error?
[INFO] [stdout]   |     ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]  --> modules/module1/tests/module1.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | / fn module1_test() {
[INFO] [stdout] 3 | |     error?
[INFO] [stdout]   | |          ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 4 | | }
[INFO] [stdout]   | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `FromResidual<_>` is not implemented for `()`
[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] Some errors have detailed explanations: E0277, E0425.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `module1` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]  --> modules/module2/tests/module2.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | / fn module2_test() {
[INFO] [stdout] 3 | |     error?
[INFO] [stdout]   | |          ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 4 | | }
[INFO] [stdout]   | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `FromResidual<_>` is not implemented for `()`
[INFO] [stdout]   = note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0425.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "93df75e4e4433c4f4a8af931ded03cbb3f81a547615ad3e21334be51656c4b21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93df75e4e4433c4f4a8af931ded03cbb3f81a547615ad3e21334be51656c4b21", kill_on_drop: false }`
[INFO] [stdout] 93df75e4e4433c4f4a8af931ded03cbb3f81a547615ad3e21334be51656c4b21