[INFO] fetching crate mmap_json_file 0.1.5... [INFO] checking mmap_json_file-0.1.5 against try#7b3565da729099dbe807466fcd118fb2815986e0 for pr-81789 [INFO] extracting crate mmap_json_file 0.1.5 into /workspace/builds/worker-8/source [INFO] validating manifest of crates.io crate mmap_json_file 0.1.5 on toolchain 7b3565da729099dbe807466fcd118fb2815986e0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate mmap_json_file 0.1.5 [INFO] finished tweaking crates.io crate mmap_json_file 0.1.5 [INFO] tweaked toml for crates.io crate mmap_json_file 0.1.5 written to /workspace/builds/worker-8/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 57a050c8c5cb01d503261233d70075d101153d00ba20763e1dbb5c584a2d3ae2 [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" "57a050c8c5cb01d503261233d70075d101153d00ba20763e1dbb5c584a2d3ae2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "57a050c8c5cb01d503261233d70075d101153d00ba20763e1dbb5c584a2d3ae2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "57a050c8c5cb01d503261233d70075d101153d00ba20763e1dbb5c584a2d3ae2", kill_on_drop: false }` [INFO] [stdout] 57a050c8c5cb01d503261233d70075d101153d00ba20763e1dbb5c584a2d3ae2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+7b3565da729099dbe807466fcd118fb2815986e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0271b51bc91d63f178c758a41c6c37e59da4f383fb0c53fedbf73cb90f6c9de3 [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" "0271b51bc91d63f178c758a41c6c37e59da4f383fb0c53fedbf73cb90f6c9de3", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling proc-macro2 v1.0.26 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.70 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling standback v0.2.17 [INFO] [stderr] Compiling time v0.2.26 [INFO] [stderr] Checking memmap v0.7.0 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling memoffset v0.5.6 [INFO] [stderr] Compiling miniz_oxide v0.4.4 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking crossbeam-channel v0.4.4 [INFO] [stderr] Checking crossbeam-queue v0.2.3 [INFO] [stderr] Checking backtrace v0.3.57 [INFO] [stderr] Checking crossbeam-deque v0.7.3 [INFO] [stderr] Checking crossbeam v0.7.3 [INFO] [stderr] Compiling synstructure v0.12.4 [INFO] [stderr] Compiling time-macros-impl v0.1.1 [INFO] [stderr] Compiling serde_derive v1.0.125 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Checking failure v0.1.8 [INFO] [stderr] Checking time-macros v0.1.1 [INFO] [stderr] Checking serde v1.0.125 [INFO] [stderr] Checking serde_json v1.0.64 [INFO] [stderr] Checking mmap_json_file v0.1.5 (/opt/rustwide/workdir) [INFO] [stdout] warning: irrefutable `while let` pattern [INFO] [stdout] --> src/lib.rs:101:9 [INFO] [stdout] | [INFO] [stdout] 101 | / while let record = receiver.recv() { [INFO] [stdout] 102 | | match record { [INFO] [stdout] 103 | | Err(_reason) => { [INFO] [stdout] 104 | | break; [INFO] [stdout] ... | [INFO] [stdout] 119 | | } [INFO] [stdout] 120 | | } [INFO] [stdout] | |_________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(irrefutable_let_patterns)]` on by default [INFO] [stdout] = note: this pattern will always match, so the loop will never exit [INFO] [stdout] = help: consider instead using a `loop { ... }` with a `let` inside it [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: irrefutable `while let` pattern [INFO] [stdout] --> src/lib.rs:419:9 [INFO] [stdout] | [INFO] [stdout] 419 | / while let record = receiver.recv() { [INFO] [stdout] 420 | | match record { [INFO] [stdout] 421 | | Err(_reason) => { [INFO] [stdout] 422 | | break; [INFO] [stdout] ... | [INFO] [stdout] 435 | | } [INFO] [stdout] 436 | | } [INFO] [stdout] | |_________^ [INFO] [stdout] | [INFO] [stdout] = note: this pattern will always match, so the loop will never exit [INFO] [stdout] = help: consider instead using a `loop { ... }` with a `let` inside it [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `reason` [INFO] [stdout] --> src/lib.rs:128:17 [INFO] [stdout] | [INFO] [stdout] 128 | Err(reason) => { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_reason` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: irrefutable `while let` pattern [INFO] [stdout] --> src/lib.rs:101:9 [INFO] [stdout] | [INFO] [stdout] 101 | / while let record = receiver.recv() { [INFO] [stdout] 102 | | match record { [INFO] [stdout] 103 | | Err(_reason) => { [INFO] [stdout] 104 | | break; [INFO] [stdout] ... | [INFO] [stdout] 119 | | } [INFO] [stdout] 120 | | } [INFO] [stdout] | |_________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(irrefutable_let_patterns)]` on by default [INFO] [stdout] = note: this pattern will always match, so the loop will never exit [INFO] [stdout] = help: consider instead using a `loop { ... }` with a `let` inside it [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: irrefutable `while let` pattern [INFO] [stdout] --> src/lib.rs:419:9 [INFO] [stdout] | [INFO] [stdout] 419 | / while let record = receiver.recv() { [INFO] [stdout] 420 | | match record { [INFO] [stdout] 421 | | Err(_reason) => { [INFO] [stdout] 422 | | break; [INFO] [stdout] ... | [INFO] [stdout] 435 | | } [INFO] [stdout] 436 | | } [INFO] [stdout] | |_________^ [INFO] [stdout] | [INFO] [stdout] = note: this pattern will always match, so the loop will never exit [INFO] [stdout] = help: consider instead using a `loop { ... }` with a `let` inside it [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `reason` [INFO] [stdout] --> src/lib.rs:128:17 [INFO] [stdout] | [INFO] [stdout] 128 | Err(reason) => { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_reason` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:414:9 [INFO] [stdout] | [INFO] [stdout] 414 | let mut output = File::create(o.clone()).unwrap(); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:414:9 [INFO] [stdout] | [INFO] [stdout] 414 | let mut output = File::create(o.clone()).unwrap(); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [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] [stdout] warning: unused variable: `filter` [INFO] [stdout] --> tests/main.rs:214:13 [INFO] [stdout] | [INFO] [stdout] 214 | let filter = |record: AirportCodes| -> bool { record.iso_country.unwrap() == "IN" }; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_filter` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 35.63s [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "0271b51bc91d63f178c758a41c6c37e59da4f383fb0c53fedbf73cb90f6c9de3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0271b51bc91d63f178c758a41c6c37e59da4f383fb0c53fedbf73cb90f6c9de3", kill_on_drop: false }` [INFO] [stdout] 0271b51bc91d63f178c758a41c6c37e59da4f383fb0c53fedbf73cb90f6c9de3