[INFO] cloning repository https://github.com/aaarland/rust-in-action [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aaarland/rust-in-action" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faaarland%2Frust-in-action", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faaarland%2Frust-in-action'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b81aba9aa7370f1f014c4c77d9a73e1b10ef4a81 [INFO] checking aaarland/rust-in-action against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faaarland%2Frust-in-action" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/aaarland/rust-in-action on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/aaarland/rust-in-action [INFO] finished tweaking git repo https://github.com/aaarland/rust-in-action [INFO] tweaked toml for git repo https://github.com/aaarland/rust-in-action written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/aaarland/rust-in-action 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded libc v0.2.143 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3af3e08f63beb8131bc8dfaa9364f34b65fcb505831ae17529a0473fbc9a1127 [INFO] running `Command { std: "docker" "start" "-a" "3af3e08f63beb8131bc8dfaa9364f34b65fcb505831ae17529a0473fbc9a1127", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3af3e08f63beb8131bc8dfaa9364f34b65fcb505831ae17529a0473fbc9a1127", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3af3e08f63beb8131bc8dfaa9364f34b65fcb505831ae17529a0473fbc9a1127", kill_on_drop: false }` [INFO] [stdout] 3af3e08f63beb8131bc8dfaa9364f34b65fcb505831ae17529a0473fbc9a1127 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a31d64231043b16eab38bec38f3902f823d1503b74df7ca37be6017d7be5c8f0 [INFO] running `Command { std: "docker" "start" "-a" "a31d64231043b16eab38bec38f3902f823d1503b74df7ca37be6017d7be5c8f0", kill_on_drop: false }` [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling num-integer v0.1.45 [INFO] [stderr] Compiling num-bigint v0.4.3 [INFO] [stderr] Compiling libc v0.2.143 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling num-rational v0.4.1 [INFO] [stderr] Compiling num-iter v0.1.43 [INFO] [stderr] Checking unicode-width v0.1.10 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Checking regex-syntax v0.7.1 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking cpu v0.1.0 (/opt/rustwide/workdir/cpu) [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking aho-corasick v1.0.1 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking num-complex v0.4.3 [INFO] [stderr] Checking regex v1.8.1 [INFO] [stderr] Checking grep_lite v0.1.0 (/opt/rustwide/workdir/grep_lite) [INFO] [stderr] Checking num v0.4.0 [INFO] [stderr] Checking mandlebrot v0.1.0 (/opt/rustwide/workdir/mandlebrot) [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> mandlebrot/src/main.rs:20:23 [INFO] [stdout] | [INFO] [stdout] 20 | let x_percent = (img_x as f64 / width as f64); [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 20 - let x_percent = (img_x as f64 / width as f64); [INFO] [stdout] 20 + let x_percent = img_x as f64 / width as f64; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> mandlebrot/src/main.rs:20:23 [INFO] [stdout] | [INFO] [stdout] 20 | let x_percent = (img_x as f64 / width as f64); [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 20 - let x_percent = (img_x as f64 / width as f64); [INFO] [stdout] 20 + let x_percent = img_x as f64 / width as f64; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> mandlebrot/src/main.rs:21:23 [INFO] [stdout] | [INFO] [stdout] 21 | let y_percent = (img_y as f64 / height as f64); [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 21 - let y_percent = (img_y as f64 / height as f64); [INFO] [stdout] 21 + let y_percent = img_y as f64 / height as f64; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> mandlebrot/src/main.rs:21:23 [INFO] [stdout] | [INFO] [stdout] 21 | let y_percent = (img_y as f64 / height as f64); [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 21 - let y_percent = (img_y as f64 / height as f64); [INFO] [stdout] 21 + let y_percent = img_y as f64 / height as f64; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.07s [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "a31d64231043b16eab38bec38f3902f823d1503b74df7ca37be6017d7be5c8f0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a31d64231043b16eab38bec38f3902f823d1503b74df7ca37be6017d7be5c8f0", kill_on_drop: false }` [INFO] [stdout] a31d64231043b16eab38bec38f3902f823d1503b74df7ca37be6017d7be5c8f0 [INFO] checking aaarland/rust-in-action against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faaarland%2Frust-in-action" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/aaarland/rust-in-action on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/aaarland/rust-in-action [INFO] finished tweaking git repo https://github.com/aaarland/rust-in-action [INFO] tweaked toml for git repo https://github.com/aaarland/rust-in-action written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/aaarland/rust-in-action 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] bf03aefad6309eed0dff1e01178e37ca4f7b2abb1d6f42335e1136752f6e201c [INFO] running `Command { std: "docker" "start" "-a" "bf03aefad6309eed0dff1e01178e37ca4f7b2abb1d6f42335e1136752f6e201c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bf03aefad6309eed0dff1e01178e37ca4f7b2abb1d6f42335e1136752f6e201c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bf03aefad6309eed0dff1e01178e37ca4f7b2abb1d6f42335e1136752f6e201c", kill_on_drop: false }` [INFO] [stdout] bf03aefad6309eed0dff1e01178e37ca4f7b2abb1d6f42335e1136752f6e201c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6cb349ff95db2437a080fc69b7bbbbb195d48dfaeb7206be36ddd1970aa32c18 [INFO] running `Command { std: "docker" "start" "-a" "6cb349ff95db2437a080fc69b7bbbbb195d48dfaeb7206be36ddd1970aa32c18", kill_on_drop: false }` [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling num-integer v0.1.45 [INFO] [stderr] Compiling num-bigint v0.4.3 [INFO] [stderr] Compiling libc v0.2.143 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling num-iter v0.1.43 [INFO] [stderr] Compiling num-rational v0.4.1 [INFO] [stderr] Checking unicode-width v0.1.10 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Checking regex-syntax v0.7.1 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking cpu v0.1.0 (/opt/rustwide/workdir/cpu) [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking aho-corasick v1.0.1 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking num-complex v0.4.3 [INFO] [stderr] Checking regex v1.8.1 [INFO] [stderr] Checking grep_lite v0.1.0 (/opt/rustwide/workdir/grep_lite) [INFO] [stderr] Checking num v0.4.0 [INFO] [stderr] Checking mandlebrot v0.1.0 (/opt/rustwide/workdir/mandlebrot) [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> mandlebrot/src/main.rs:20:23 [INFO] [stdout] | [INFO] [stdout] 20 | let x_percent = (img_x as f64 / width as f64); [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 20 - let x_percent = (img_x as f64 / width as f64); [INFO] [stdout] 20 + let x_percent = img_x as f64 / width as f64; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> mandlebrot/src/main.rs:21:23 [INFO] [stdout] | [INFO] [stdout] 21 | let y_percent = (img_y as f64 / height as f64); [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 21 - let y_percent = (img_y as f64 / height as f64); [INFO] [stdout] 21 + let y_percent = img_y as f64 / height as f64; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> mandlebrot/src/main.rs:20:23 [INFO] [stdout] | [INFO] [stdout] 20 | let x_percent = (img_x as f64 / width as f64); [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 20 - let x_percent = (img_x as f64 / width as f64); [INFO] [stdout] 20 + let x_percent = img_x as f64 / width as f64; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> mandlebrot/src/main.rs:21:23 [INFO] [stdout] | [INFO] [stdout] 21 | let y_percent = (img_y as f64 / height as f64); [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 21 - let y_percent = (img_y as f64 / height as f64); [INFO] [stdout] 21 + let y_percent = img_y as f64 / height as f64; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.25s [INFO] running `Command { std: "docker" "inspect" "6cb349ff95db2437a080fc69b7bbbbb195d48dfaeb7206be36ddd1970aa32c18", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6cb349ff95db2437a080fc69b7bbbbb195d48dfaeb7206be36ddd1970aa32c18", kill_on_drop: false }` [INFO] [stdout] 6cb349ff95db2437a080fc69b7bbbbb195d48dfaeb7206be36ddd1970aa32c18