[INFO] fetching crate pleaser 0.5.6... [INFO] checking pleaser-0.5.6 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170 [INFO] extracting crate pleaser 0.5.6 into /workspace/builds/worker-5-tc2/source [INFO] started tweaking crates.io crate pleaser 0.5.6 [INFO] finished tweaking crates.io crate pleaser 0.5.6 [INFO] tweaked toml for crates.io crate pleaser 0.5.6 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate pleaser 0.5.6 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate pleaser 0.5.6 already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 221459b7951612b698b260f13dc0e2d4a56a2918c466df171c4a73f935a3af47 [INFO] running `Command { std: "docker" "start" "-a" "221459b7951612b698b260f13dc0e2d4a56a2918c466df171c4a73f935a3af47", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "221459b7951612b698b260f13dc0e2d4a56a2918c466df171c4a73f935a3af47", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "221459b7951612b698b260f13dc0e2d4a56a2918c466df171c4a73f935a3af47", kill_on_drop: false }` [INFO] [stdout] 221459b7951612b698b260f13dc0e2d4a56a2918c466df171c4a73f935a3af47 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d35ea5dfe3ed7d71b25859930fd90d11ce9c3372cacc4c43eb298ceb3a176da2 [INFO] running `Command { std: "docker" "start" "-a" "d35ea5dfe3ed7d71b25859930fd90d11ce9c3372cacc4c43eb298ceb3a176da2", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling pam-sys v0.5.6 [INFO] [stderr] Checking ppv-lite86 v0.2.16 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling error-chain v0.12.4 [INFO] [stderr] Compiling num-integer v0.1.45 [INFO] [stderr] Checking num_threads v0.1.6 [INFO] [stderr] Checking itoa v1.0.2 [INFO] [stderr] Checking unicode-width v0.1.9 [INFO] [stderr] Checking regex-syntax v0.6.27 [INFO] [stderr] Checking getopts v0.2.21 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking getrandom v0.2.6 [INFO] [stderr] Checking rtoolbox v0.0.2 [INFO] [stderr] Checking time v0.3.9 [INFO] [stderr] Checking time v0.1.43 [INFO] [stderr] Checking hostname v0.3.1 [INFO] [stderr] Checking users v0.8.1 [INFO] [stderr] Checking nix v0.27.1 [INFO] [stderr] Checking rpassword v7.3.1 [INFO] [stderr] Checking uzers v0.11.3 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking pam v0.7.0 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking regex v1.7.1 [INFO] [stderr] Checking syslog v6.0.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking pleaser v0.5.6 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused return value of `exec` that must be used [INFO] [stdout] --> src/bin/pleaseedit.rs:438:9 [INFO] [stdout] | [INFO] [stdout] 438 | / Command::new(editor.as_str()) [INFO] [stdout] 439 | | .arg(edit_file.as_ref().unwrap()) [INFO] [stdout] 440 | | .exec(); [INFO] [stdout] | |___________________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 438 | let _ = Command::new(editor.as_str()) [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `exec` that must be used [INFO] [stdout] --> src/bin/pleaseedit.rs:442:9 [INFO] [stdout] | [INFO] [stdout] 442 | / Command::new(args[0]) [INFO] [stdout] 443 | | .args(&args[1..]) [INFO] [stdout] 444 | | .arg(edit_file.as_ref().unwrap()) [INFO] [stdout] 445 | | .exec(); [INFO] [stdout] | |___________________^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 442 | let _ = Command::new(args[0]) [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `exec` that must be used [INFO] [stdout] --> src/bin/please.rs:348:9 [INFO] [stdout] | [INFO] [stdout] 348 | / Command::new(&ro.cloned_args.as_ref().unwrap()[0]) [INFO] [stdout] 349 | | .args(ro.cloned_args.as_ref().unwrap().clone().split_off(1)) [INFO] [stdout] 350 | | .exec(); [INFO] [stdout] | |___________________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 348 | let _ = Command::new(&ro.cloned_args.as_ref().unwrap()[0]) [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `exec` that must be used [INFO] [stdout] --> src/bin/please.rs:352:9 [INFO] [stdout] | [INFO] [stdout] 352 | Command::new(&ro.cloned_args.as_ref().unwrap()[0]).exec(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 352 | let _ = Command::new(&ro.cloned_args.as_ref().unwrap()[0]).exec(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `exec` that must be used [INFO] [stdout] --> src/bin/pleaseedit.rs:438:9 [INFO] [stdout] | [INFO] [stdout] 438 | / Command::new(editor.as_str()) [INFO] [stdout] 439 | | .arg(edit_file.as_ref().unwrap()) [INFO] [stdout] 440 | | .exec(); [INFO] [stdout] | |___________________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 438 | let _ = Command::new(editor.as_str()) [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `exec` that must be used [INFO] [stdout] --> src/bin/pleaseedit.rs:442:9 [INFO] [stdout] | [INFO] [stdout] 442 | / Command::new(args[0]) [INFO] [stdout] 443 | | .args(&args[1..]) [INFO] [stdout] 444 | | .arg(edit_file.as_ref().unwrap()) [INFO] [stdout] 445 | | .exec(); [INFO] [stdout] | |___________________^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 442 | let _ = Command::new(args[0]) [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `exec` that must be used [INFO] [stdout] --> src/bin/please.rs:348:9 [INFO] [stdout] | [INFO] [stdout] 348 | / Command::new(&ro.cloned_args.as_ref().unwrap()[0]) [INFO] [stdout] 349 | | .args(ro.cloned_args.as_ref().unwrap().clone().split_off(1)) [INFO] [stdout] 350 | | .exec(); [INFO] [stdout] | |___________________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 348 | let _ = Command::new(&ro.cloned_args.as_ref().unwrap()[0]) [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `exec` that must be used [INFO] [stdout] --> src/bin/please.rs:352:9 [INFO] [stdout] | [INFO] [stdout] 352 | Command::new(&ro.cloned_args.as_ref().unwrap()[0]).exec(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 352 | let _ = Command::new(&ro.cloned_args.as_ref().unwrap()[0]).exec(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.64s [INFO] running `Command { std: "docker" "inspect" "d35ea5dfe3ed7d71b25859930fd90d11ce9c3372cacc4c43eb298ceb3a176da2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d35ea5dfe3ed7d71b25859930fd90d11ce9c3372cacc4c43eb298ceb3a176da2", kill_on_drop: false }` [INFO] [stdout] d35ea5dfe3ed7d71b25859930fd90d11ce9c3372cacc4c43eb298ceb3a176da2