[INFO] updating cached repository https://github.com/iafisher/popquiz [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 2403e4c7a35927c24a2bc80c309d61dd1bb78a80 [INFO] checking iafisher/popquiz against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiafisher%2Fpopquiz" "/workspace/builds/worker-7/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/iafisher/popquiz on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7 [INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/iafisher/popquiz [INFO] finished tweaking git repo https://github.com/iafisher/popquiz [INFO] tweaked toml for git repo https://github.com/iafisher/popquiz written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/iafisher/popquiz already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 5af2321e30c292a60fad4af2df7c46c881e61dc073e3d76149ea6f5caee988b3 [INFO] running `"docker" "start" "-a" "5af2321e30c292a60fad4af2df7c46c881e61dc073e3d76149ea6f5caee988b3"` [INFO] [stderr] Compiling libc v0.2.65 [INFO] [stderr] Compiling syn v0.15.35 [INFO] [stderr] Compiling winapi v0.3.7 [INFO] [stderr] Compiling nix v0.13.1 [INFO] [stderr] Checking aho-corasick v0.7.6 [INFO] [stderr] Checking regex v1.1.9 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking time v0.1.42 [INFO] [stderr] Checking term_size v0.3.1 [INFO] [stderr] Checking dirs v1.0.5 [INFO] [stderr] Checking nix v0.15.0 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking rand v0.6.5 [INFO] [stderr] Checking cgmath v0.16.1 [INFO] [stderr] Compiling serde_derive v1.0.92 [INFO] [stderr] Checking rustyline v4.1.0 [INFO] [stderr] Checking winconsole v0.10.0 [INFO] [stderr] Checking colored v1.8.0 [INFO] [stderr] Checking serde v1.0.101 [INFO] [stderr] Checking serde_json v1.0.39 [INFO] [stderr] Checking chrono v0.4.6 [INFO] [stderr] Checking drill v1.0.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/common.rs:88:32 [INFO] [stderr] | [INFO] [stderr] 88 | fn cause(&self) -> Option<&error::Error> { [INFO] [stderr] | ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/persistence.rs:144:48 [INFO] [stderr] | [INFO] [stderr] 144 | old_results: &StoredResults) -> Result> { [INFO] [stderr] | ^^^^^^^^ help: use `dyn`: `dyn Question` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/repetition.rs:38:28 [INFO] [stderr] | [INFO] [stderr] 38 | questions: &'a Vec>, [INFO] [stderr] | ^^^^^^^^ help: use `dyn`: `dyn Question` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/repetition.rs:39:43 [INFO] [stderr] | [INFO] [stderr] 39 | options: &TakeOptions) -> Vec<&'a Box> { [INFO] [stderr] | ^^^^^^^^ help: use `dyn`: `dyn Question` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/repetition.rs:115:36 [INFO] [stderr] | [INFO] [stderr] 115 | fn cmp_questions_in_order(a: &&Box, b: &&Box) -> cmp::Ordering { [INFO] [stderr] | ^^^^^^^^ help: use `dyn`: `dyn Question` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/repetition.rs:115:56 [INFO] [stderr] | [INFO] [stderr] 115 | fn cmp_questions_in_order(a: &&Box, b: &&Box) -> cmp::Ordering { [INFO] [stderr] | ^^^^^^^^ help: use `dyn`: `dyn Question` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/repetition.rs:134:15 [INFO] [stderr] | [INFO] [stderr] 134 | a: &&&Box, b: &&&Box) -> cmp::Ordering { [INFO] [stderr] | ^^^^^^^^ help: use `dyn`: `dyn Question` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/repetition.rs:134:36 [INFO] [stderr] | [INFO] [stderr] 134 | a: &&&Box, b: &&&Box) -> cmp::Ordering { [INFO] [stderr] | ^^^^^^^^ help: use `dyn`: `dyn Question` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/common.rs:88:32 [INFO] [stderr] | [INFO] [stderr] 88 | fn cause(&self) -> Option<&error::Error> { [INFO] [stderr] | ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/persistence.rs:144:48 [INFO] [stderr] | [INFO] [stderr] 144 | old_results: &StoredResults) -> Result> { [INFO] [stderr] | ^^^^^^^^ help: use `dyn`: `dyn Question` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/repetition.rs:38:28 [INFO] [stderr] | [INFO] [stderr] 38 | questions: &'a Vec>, [INFO] [stderr] | ^^^^^^^^ help: use `dyn`: `dyn Question` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/repetition.rs:39:43 [INFO] [stderr] | [INFO] [stderr] 39 | options: &TakeOptions) -> Vec<&'a Box> { [INFO] [stderr] | ^^^^^^^^ help: use `dyn`: `dyn Question` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/repetition.rs:115:36 [INFO] [stderr] | [INFO] [stderr] 115 | fn cmp_questions_in_order(a: &&Box, b: &&Box) -> cmp::Ordering { [INFO] [stderr] | ^^^^^^^^ help: use `dyn`: `dyn Question` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/repetition.rs:115:56 [INFO] [stderr] | [INFO] [stderr] 115 | fn cmp_questions_in_order(a: &&Box, b: &&Box) -> cmp::Ordering { [INFO] [stderr] | ^^^^^^^^ help: use `dyn`: `dyn Question` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/repetition.rs:134:15 [INFO] [stderr] | [INFO] [stderr] 134 | a: &&&Box, b: &&&Box) -> cmp::Ordering { [INFO] [stderr] | ^^^^^^^^ help: use `dyn`: `dyn Question` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/repetition.rs:134:36 [INFO] [stderr] | [INFO] [stderr] 134 | a: &&&Box, b: &&&Box) -> cmp::Ordering { [INFO] [stderr] | ^^^^^^^^ help: use `dyn`: `dyn Question` [INFO] [stderr] [INFO] [stderr] warning: cannot borrow `tags` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/main.rs:484:17 [INFO] [stderr] | [INFO] [stderr] 483 | if let Some(n) = tags.get(tag.as_str()) { [INFO] [stderr] | ---- immutable borrow occurs here [INFO] [stderr] 484 | tags.insert(tag.as_str(), n+1); [INFO] [stderr] | ^^^^ - immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stderr] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stderr] = note: for more information, see issue #59159 [INFO] [stderr] [INFO] [stderr] warning: cannot borrow `tags` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/main.rs:484:17 [INFO] [stderr] | [INFO] [stderr] 483 | if let Some(n) = tags.get(tag.as_str()) { [INFO] [stderr] | ---- immutable borrow occurs here [INFO] [stderr] 484 | tags.insert(tag.as_str(), n+1); [INFO] [stderr] | ^^^^ - immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stderr] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stderr] = note: for more information, see issue #59159 [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 11s [INFO] running `"docker" "inspect" "5af2321e30c292a60fad4af2df7c46c881e61dc073e3d76149ea6f5caee988b3"` [INFO] running `"docker" "rm" "-f" "5af2321e30c292a60fad4af2df7c46c881e61dc073e3d76149ea6f5caee988b3"` [INFO] [stdout] 5af2321e30c292a60fad4af2df7c46c881e61dc073e3d76149ea6f5caee988b3