[INFO] fetching crate b_error 0.1.0...
[INFO] checking b_error-0.1.0 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate b_error 0.1.0 into /workspace/builds/worker-62/source
[INFO] validating manifest of crates.io crate b_error 0.1.0 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate b_error 0.1.0
[INFO] finished tweaking crates.io crate b_error 0.1.0
[INFO] tweaked toml for crates.io crate b_error 0.1.0 written to /workspace/builds/worker-62/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "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" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "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-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f382970cb74e830fe2a9340452f7d6d8a329ff645f29a8e3672aa6a8bcc25a9e
[INFO] running `Command { std: "docker" "start" "-a" "f382970cb74e830fe2a9340452f7d6d8a329ff645f29a8e3672aa6a8bcc25a9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f382970cb74e830fe2a9340452f7d6d8a329ff645f29a8e3672aa6a8bcc25a9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f382970cb74e830fe2a9340452f7d6d8a329ff645f29a8e3672aa6a8bcc25a9e", kill_on_drop: false }`
[INFO] [stdout] f382970cb74e830fe2a9340452f7d6d8a329ff645f29a8e3672aa6a8bcc25a9e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 95baeccb06d302e4b3ddbfe726a494c40ea8803c0892c13b0a6072986f2064ec
[INFO] running `Command { std: "docker" "start" "-a" "95baeccb06d302e4b3ddbfe726a494c40ea8803c0892c13b0a6072986f2064ec", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking b_error v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `c` found for enum `Result` in the current scope
[INFO] [stdout]    --> error.rs:130:19
[INFO] [stdout]     |
[INFO] [stdout] 130 |         ret_s_t().c("test")?;
[INFO] [stdout]     |                   ^ method not found in `Result<(), TestError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `c` found for enum `Result` in the current scope
[INFO] [stdout]    --> error.rs:131:19
[INFO] [stdout]     |
[INFO] [stdout] 131 |         ret_s_b().c("test")?;
[INFO] [stdout]     |                   ^ method not found in `Result<(), BError>`
[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 E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `b_error` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "95baeccb06d302e4b3ddbfe726a494c40ea8803c0892c13b0a6072986f2064ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95baeccb06d302e4b3ddbfe726a494c40ea8803c0892c13b0a6072986f2064ec", kill_on_drop: false }`
[INFO] [stdout] 95baeccb06d302e4b3ddbfe726a494c40ea8803c0892c13b0a6072986f2064ec