[INFO] fetching crate borrowing_exerci 0.4.51... [INFO] checking borrowing_exerci-0.4.51 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920 [INFO] extracting crate borrowing_exerci 0.4.51 into /workspace/builds/worker-2/source [INFO] validating manifest of crates.io crate borrowing_exerci 0.4.51 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate borrowing_exerci 0.4.51 [INFO] finished tweaking crates.io crate borrowing_exerci 0.4.51 [INFO] tweaked toml for crates.io crate borrowing_exerci 0.4.51 written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate crates.io crate borrowing_exerci 0.4.51 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c22685edbfdaf1bcb88363713359f7dfe5229c499dc9c4cea41d28a397a1cf6c [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "c22685edbfdaf1bcb88363713359f7dfe5229c499dc9c4cea41d28a397a1cf6c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c22685edbfdaf1bcb88363713359f7dfe5229c499dc9c4cea41d28a397a1cf6c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c22685edbfdaf1bcb88363713359f7dfe5229c499dc9c4cea41d28a397a1cf6c", kill_on_drop: false }` [INFO] [stdout] c22685edbfdaf1bcb88363713359f7dfe5229c499dc9c4cea41d28a397a1cf6c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0aa19dc5b94099f1f223147bfd94d2fc4f85e11e9ba2101af4859678dc0e52a3 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "0aa19dc5b94099f1f223147bfd94d2fc4f85e11e9ba2101af4859678dc0e52a3", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.65 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling getrandom v0.1.12 [INFO] [stderr] Compiling serde v1.0.101 [INFO] [stderr] Compiling ryu v1.0.2 [INFO] [stderr] Checking ppv-lite86 v0.2.5 [INFO] [stderr] Checking unicode-width v0.1.6 [INFO] [stderr] Checking itoa v0.4.4 [INFO] [stderr] Checking stable_deref_trait v1.1.1 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking regex-syntax v0.6.12 [INFO] [stderr] Checking encode_unicode v0.3.6 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking regex-automata v0.1.8 [INFO] [stderr] Checking owning_ref v0.4.0 [INFO] [stderr] Checking c2-chacha v0.2.2 [INFO] [stderr] Checking atty v0.2.13 [INFO] [stderr] Checking term_size v0.3.1 [INFO] [stderr] Checking dirs v1.0.5 [INFO] [stderr] Checking users v0.9.1 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking term v0.5.2 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking rand_chacha v0.2.1 [INFO] [stderr] Checking csv-core v0.1.6 [INFO] [stderr] Checking aho-corasick v0.7.6 [INFO] [stderr] Checking rand v0.7.2 [INFO] [stderr] Checking regex v1.3.1 [INFO] [stderr] Checking run_script v0.3.2 [INFO] [stderr] Checking bstr v0.2.8 [INFO] [stderr] Checking csv v1.1.1 [INFO] [stderr] Checking prettytable-rs v0.8.0 [INFO] [stderr] Checking borrowing_exerci v0.4.51 (/opt/rustwide/workdir) [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/lib.rs:259:65 [INFO] [stdout] | [INFO] [stdout] 259 | Err(why) => panic!("couldn't open {}: {}", display, why.description()), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/lib.rs:266:65 [INFO] [stdout] | [INFO] [stdout] 266 | Err(why) => panic!("couldn't read {}: {}", display, why.description()), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/lib.rs:285:71 [INFO] [stdout] | [INFO] [stdout] 285 | Err(why) => panic!("couldn't create {}: {}", new_display, why.description()), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/lib.rs:291:73 [INFO] [stdout] | [INFO] [stdout] 291 | Err(why) => panic!("couldn't write to {}: {}", new_display, why.description()), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/lib.rs:259:65 [INFO] [stdout] | [INFO] [stdout] 259 | Err(why) => panic!("couldn't open {}: {}", display, why.description()), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/lib.rs:266:65 [INFO] [stdout] | [INFO] [stdout] 266 | Err(why) => panic!("couldn't read {}: {}", display, why.description()), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/lib.rs:285:71 [INFO] [stdout] | [INFO] [stdout] 285 | Err(why) => panic!("couldn't create {}: {}", new_display, why.description()), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/lib.rs:291:73 [INFO] [stdout] | [INFO] [stdout] 291 | Err(why) => panic!("couldn't write to {}: {}", new_display, why.description()), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 22.19s [INFO] running `Command { std: "docker" "inspect" "0aa19dc5b94099f1f223147bfd94d2fc4f85e11e9ba2101af4859678dc0e52a3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0aa19dc5b94099f1f223147bfd94d2fc4f85e11e9ba2101af4859678dc0e52a3", kill_on_drop: false }` [INFO] [stdout] 0aa19dc5b94099f1f223147bfd94d2fc4f85e11e9ba2101af4859678dc0e52a3