[INFO] cloning repository iafisher/popquiz [INFO] running `"git" "clone" "--bare" "git://github.com/iafisher/popquiz.git" "work/cache/sources/gh/iafisher/popquiz"` [INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/iafisher/popquiz'... [INFO] running `"git" "clone" "work/cache/sources/gh/iafisher/popquiz" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/iafisher/popquiz"` [INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/iafisher/popquiz'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/iafisher/popquiz" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/iafisher/popquiz"` [INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/iafisher/popquiz'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] dac227f210920091ecd02ecfad475ce5f4fb6b96 [INFO] sha for GitHub repo iafisher/popquiz: dac227f210920091ecd02ecfad475ce5f4fb6b96 [INFO] validating manifest of iafisher/popquiz on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of iafisher/popquiz on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049 [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing iafisher/popquiz [INFO] finished frobbing iafisher/popquiz [INFO] frobbed toml for iafisher/popquiz written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/iafisher/popquiz/Cargo.toml [INFO] started frobbing iafisher/popquiz [INFO] finished frobbing iafisher/popquiz [INFO] frobbed toml for iafisher/popquiz written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/iafisher/popquiz/Cargo.toml [INFO] crate iafisher/popquiz already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] checking iafisher/popquiz against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008 [INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-3/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/iafisher/popquiz:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 82587d0e0759f3e7afd829126525c6c8fd3cb3af605e016fa9500799376ff034 [INFO] running `"docker" "start" "-a" "82587d0e0759f3e7afd829126525c6c8fd3cb3af605e016fa9500799376ff034"` [INFO] [stderr] Compiling winapi v0.3.7 [INFO] [stderr] Checking term_size v0.3.1 [INFO] [stderr] Compiling structopt-derive v0.2.16 [INFO] [stderr] Checking rustyline v4.1.0 [INFO] [stderr] Checking chrono v0.4.6 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking winconsole v0.10.0 [INFO] [stderr] Checking colored v1.8.0 [INFO] [stderr] Checking structopt v0.2.16 [INFO] [stderr] Checking popquiz v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib.rs:1559:32 [INFO] [stderr] | [INFO] [stderr] 1559 | 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/lib.rs:1559:32 [INFO] [stderr] | [INFO] [stderr] 1559 | 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: cannot borrow `tags` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/lib.rs:1105:17 [INFO] [stderr] | [INFO] [stderr] 1104 | if let Some(n) = tags.get(tag.as_str()) { [INFO] [stderr] | ---- immutable borrow occurs here [INFO] [stderr] 1105 | 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 `ret` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/lib.rs:1282:13 [INFO] [stderr] | [INFO] [stderr] 1280 | if let Some(text) = ret.get("text") { [INFO] [stderr] | --- immutable borrow occurs here [INFO] [stderr] 1281 | if text.is_string() { [INFO] [stderr] 1282 | ret.insert(String::from("text"), serde_json::json!([text])); [INFO] [stderr] | ^^^ mutable borrow occurs here ------------------------- immutable borrow later used here [INFO] [stderr] | [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] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: cannot borrow `ret` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/lib.rs:1292:17 [INFO] [stderr] | [INFO] [stderr] 1289 | if let Some(answer) = ret.get("answer") { [INFO] [stderr] | --- immutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 1292 | ret.insert( [INFO] [stderr] | ^^^ mutable borrow occurs here [INFO] [stderr] 1293 | String::from("answer_list"), [INFO] [stderr] 1294 | serde_json::json!([{"variants": answer.clone()}]) [INFO] [stderr] | ------ immutable borrow later used here [INFO] [stderr] | [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 `ret` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/lib.rs:1298:17 [INFO] [stderr] | [INFO] [stderr] 1289 | if let Some(answer) = ret.get("answer") { [INFO] [stderr] | --- immutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 1298 | ret.insert( [INFO] [stderr] | ^^^ mutable borrow occurs here [INFO] [stderr] 1299 | String::from("answer_list"), [INFO] [stderr] 1300 | serde_json::json!([{"variants": [answer.clone()]}]) [INFO] [stderr] | ------ immutable borrow later used here [INFO] [stderr] | [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/lib.rs:1105:17 [INFO] [stderr] | [INFO] [stderr] 1104 | if let Some(n) = tags.get(tag.as_str()) { [INFO] [stderr] | ---- immutable borrow occurs here [INFO] [stderr] 1105 | 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 `ret` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/lib.rs:1282:13 [INFO] [stderr] | [INFO] [stderr] 1280 | if let Some(text) = ret.get("text") { [INFO] [stderr] | --- immutable borrow occurs here [INFO] [stderr] 1281 | if text.is_string() { [INFO] [stderr] 1282 | ret.insert(String::from("text"), serde_json::json!([text])); [INFO] [stderr] | ^^^ mutable borrow occurs here ------------------------- immutable borrow later used here [INFO] [stderr] | [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] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: cannot borrow `ret` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/lib.rs:1292:17 [INFO] [stderr] | [INFO] [stderr] 1289 | if let Some(answer) = ret.get("answer") { [INFO] [stderr] | --- immutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 1292 | ret.insert( [INFO] [stderr] | ^^^ mutable borrow occurs here [INFO] [stderr] 1293 | String::from("answer_list"), [INFO] [stderr] 1294 | serde_json::json!([{"variants": answer.clone()}]) [INFO] [stderr] | ------ immutable borrow later used here [INFO] [stderr] | [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 `ret` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/lib.rs:1298:17 [INFO] [stderr] | [INFO] [stderr] 1289 | if let Some(answer) = ret.get("answer") { [INFO] [stderr] | --- immutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 1298 | ret.insert( [INFO] [stderr] | ^^^ mutable borrow occurs here [INFO] [stderr] 1299 | String::from("answer_list"), [INFO] [stderr] 1300 | serde_json::json!([{"variants": [answer.clone()]}]) [INFO] [stderr] | ------ immutable borrow later used here [INFO] [stderr] | [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 22.56s [INFO] running `"docker" "inspect" "82587d0e0759f3e7afd829126525c6c8fd3cb3af605e016fa9500799376ff034"` [INFO] running `"docker" "rm" "-f" "82587d0e0759f3e7afd829126525c6c8fd3cb3af605e016fa9500799376ff034"` [INFO] [stdout] 82587d0e0759f3e7afd829126525c6c8fd3cb3af605e016fa9500799376ff034