[INFO] updating cached repository Gopiandcode/observable-rs [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/Gopiandcode/observable-rs [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/Gopiandcode/observable-rs" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/Gopiandcode/observable-rs"` [INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/Gopiandcode/observable-rs'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/Gopiandcode/observable-rs" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/Gopiandcode/observable-rs"` [INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/Gopiandcode/observable-rs'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] f30920c76c5e15904055c5a736b23b817e998a50 [INFO] sha for GitHub repo Gopiandcode/observable-rs: f30920c76c5e15904055c5a736b23b817e998a50 [INFO] validating manifest of Gopiandcode/observable-rs on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of Gopiandcode/observable-rs on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing Gopiandcode/observable-rs [INFO] finished frobbing Gopiandcode/observable-rs [INFO] frobbed toml for Gopiandcode/observable-rs written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/Gopiandcode/observable-rs/Cargo.toml [INFO] started frobbing Gopiandcode/observable-rs [INFO] finished frobbing Gopiandcode/observable-rs [INFO] frobbed toml for Gopiandcode/observable-rs written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/Gopiandcode/observable-rs/Cargo.toml [INFO] crate Gopiandcode/observable-rs already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/Gopiandcode/observable-rs/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] the lockfile is outdated, regenerating it [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded dependent_view v1.0.2 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking Gopiandcode/observable-rs against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-0/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/Gopiandcode/observable-rs:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 4b963f7be7db068a96d46cfd9336261ba8e76b79ab0032fd58577a5464862e76 [INFO] running `"docker" "start" "-a" "4b963f7be7db068a96d46cfd9336261ba8e76b79ab0032fd58577a5464862e76"` [INFO] [stderr] Checking observable_rs v0.5.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `Rc` [INFO] [stderr] --> src/lib.rs:5:21 [INFO] [stderr] | [INFO] [stderr] 5 | use std::rc::{Weak, Rc}; [INFO] [stderr] | ^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `AsRef` [INFO] [stderr] --> src/lib.rs:6:20 [INFO] [stderr] | [INFO] [stderr] 6 | use std::convert::{AsRef, AsMut}; [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `Rc` [INFO] [stderr] --> src/lib.rs:5:21 [INFO] [stderr] | [INFO] [stderr] 5 | use std::rc::{Weak, Rc}; [INFO] [stderr] | ^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `AsRef` [INFO] [stderr] --> src/lib.rs:6:20 [INFO] [stderr] | [INFO] [stderr] 6 | use std::convert::{AsRef, AsMut}; [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.65s [INFO] running `"docker" "inspect" "4b963f7be7db068a96d46cfd9336261ba8e76b79ab0032fd58577a5464862e76"` [INFO] running `"docker" "rm" "-f" "4b963f7be7db068a96d46cfd9336261ba8e76b79ab0032fd58577a5464862e76"` [INFO] [stdout] 4b963f7be7db068a96d46cfd9336261ba8e76b79ab0032fd58577a5464862e76