[INFO] updating cached repository dmichiels/temp_rustfbp [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/dmichiels/temp_rustfbp [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/dmichiels/temp_rustfbp" "work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/dmichiels/temp_rustfbp"` [INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/dmichiels/temp_rustfbp'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/dmichiels/temp_rustfbp" "work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/dmichiels/temp_rustfbp"` [INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/dmichiels/temp_rustfbp'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 105878fe08b40256bdcf35d7b94412919d25f2ea [INFO] sha for GitHub repo dmichiels/temp_rustfbp: 105878fe08b40256bdcf35d7b94412919d25f2ea [INFO] validating manifest of dmichiels/temp_rustfbp on toolchain master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504 [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of dmichiels/temp_rustfbp on toolchain try#58b21121d0b447ceb3f1a655155d802191acf044 [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing dmichiels/temp_rustfbp [INFO] finished frobbing dmichiels/temp_rustfbp [INFO] frobbed toml for dmichiels/temp_rustfbp written to work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/dmichiels/temp_rustfbp/Cargo.toml [INFO] started frobbing dmichiels/temp_rustfbp [INFO] finished frobbing dmichiels/temp_rustfbp [INFO] frobbed toml for dmichiels/temp_rustfbp written to work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/dmichiels/temp_rustfbp/Cargo.toml [INFO] crate dmichiels/temp_rustfbp already has a lockfile, it will not be regenerated [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] error: the lock file /mnt/crater-raid/crater/work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/dmichiels/temp_rustfbp/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] the lockfile is outdated, regenerating it [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache lock [INFO] checking dmichiels/temp_rustfbp against try#58b21121d0b447ceb3f1a655155d802191acf044 for pr-61100 [INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-61100/worker-0/try#58b21121d0b447ceb3f1a655155d802191acf044:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/dmichiels/temp_rustfbp:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] c07bafea335ac940f73e51c168adfacd13cca43b80db38eb080830d577a626d5 [INFO] running `"docker" "start" "-a" "c07bafea335ac940f73e51c168adfacd13cca43b80db38eb080830d577a626d5"` [INFO] [stderr] Compiling serde v0.8.23 [INFO] [stderr] Checking capnp v0.7.5 [INFO] [stderr] Compiling target_build_utils v0.1.2 [INFO] [stderr] warning[E0502]: cannot borrow `*reff` as immutable because it is also borrowed as mutable [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/capnp-0.7.5/src/private/layout.rs:643:47 [INFO] [stderr] | [INFO] [stderr] 643 | let ptr = try!(follow_fars(&mut reff, (*reff).target(), &mut segment)); [INFO] [stderr] | ----------- --------- ^^^^^^^ immutable borrow occurs here [INFO] [stderr] | | | [INFO] [stderr] | | mutable borrow occurs here [INFO] [stderr] | mutable borrow later used by call [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] = note: for more information, try `rustc --explain E0729` [INFO] [stderr] [INFO] [stderr] Checking capnpc v0.7.5 [INFO] [stderr] Compiling serde_json v0.8.6 [INFO] [stderr] Compiling libloading v0.2.4 [INFO] [stderr] Checking rustfbp v0.3.16 (/opt/crater/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/scheduler.rs:344:32 [INFO] [stderr] | [INFO] [stderr] 344 | .and_then(|mut port| { [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/scheduler.rs:339:24 [INFO] [stderr] | [INFO] [stderr] 339 | .and_then(|mut comp| { [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/scheduler.rs:589:17 [INFO] [stderr] | [INFO] [stderr] 589 | let mut o_comp = self.components.get_mut(&name).expect("SchedState remove : component doesn't exist"); [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/scheduler.rs:646:13 [INFO] [stderr] | [INFO] [stderr] 646 | let mut o_comp = self.components.get_mut(&name).expect("SchedSate run : component doesn't exist"); [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/scheduler.rs:661:13 [INFO] [stderr] | [INFO] [stderr] 661 | let mut comp = self.components.get_mut(&name).expect("SchedState edit_component : component doesn't exist"); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/scheduler.rs:671:22 [INFO] [stderr] | [INFO] [stderr] 671 | fn edit_one_comp(mut c: &mut BoxedComp, msg: EditCmp) -> Result<()> { [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/scheduler.rs:672:13 [INFO] [stderr] | [INFO] [stderr] 672 | let mut c = c.get_ports(); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/scheduler.rs:344:32 [INFO] [stderr] | [INFO] [stderr] 344 | .and_then(|mut port| { [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/scheduler.rs:339:24 [INFO] [stderr] | [INFO] [stderr] 339 | .and_then(|mut comp| { [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/scheduler.rs:589:17 [INFO] [stderr] | [INFO] [stderr] 589 | let mut o_comp = self.components.get_mut(&name).expect("SchedState remove : component doesn't exist"); [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/scheduler.rs:646:13 [INFO] [stderr] | [INFO] [stderr] 646 | let mut o_comp = self.components.get_mut(&name).expect("SchedSate run : component doesn't exist"); [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/scheduler.rs:661:13 [INFO] [stderr] | [INFO] [stderr] 661 | let mut comp = self.components.get_mut(&name).expect("SchedState edit_component : component doesn't exist"); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/scheduler.rs:671:22 [INFO] [stderr] | [INFO] [stderr] 671 | fn edit_one_comp(mut c: &mut BoxedComp, msg: EditCmp) -> Result<()> { [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/scheduler.rs:672:13 [INFO] [stderr] | [INFO] [stderr] 672 | let mut c = c.get_ports(); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 12.46s [INFO] running `"docker" "inspect" "c07bafea335ac940f73e51c168adfacd13cca43b80db38eb080830d577a626d5"` [INFO] running `"docker" "rm" "-f" "c07bafea335ac940f73e51c168adfacd13cca43b80db38eb080830d577a626d5"` [INFO] [stdout] c07bafea335ac940f73e51c168adfacd13cca43b80db38eb080830d577a626d5