[INFO] fetching crate mascheroni 0.2.0... [INFO] testing mascheroni-0.2.0 against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530 [INFO] extracting crate mascheroni 0.2.0 into /workspace/builds/worker-5/source [INFO] validating manifest of crates.io crate mascheroni 0.2.0 on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate mascheroni 0.2.0 [INFO] finished tweaking crates.io crate mascheroni 0.2.0 [INFO] tweaked toml for crates.io crate mascheroni 0.2.0 written to /workspace/builds/worker-5/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ac0ba35edac451a58fe0bdba90547b025fb1a3d5cbbe32cee2985939f9b42acd [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" "ac0ba35edac451a58fe0bdba90547b025fb1a3d5cbbe32cee2985939f9b42acd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ac0ba35edac451a58fe0bdba90547b025fb1a3d5cbbe32cee2985939f9b42acd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ac0ba35edac451a58fe0bdba90547b025fb1a3d5cbbe32cee2985939f9b42acd", kill_on_drop: false }` [INFO] [stdout] ac0ba35edac451a58fe0bdba90547b025fb1a3d5cbbe32cee2985939f9b42acd [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 810314ad33b659ff2fd95f756a47eab67e8765392d3375e55456e8a931631bc2 [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" "810314ad33b659ff2fd95f756a47eab67e8765392d3375e55456e8a931631bc2", kill_on_drop: false }` [INFO] [stderr] Compiling mascheroni v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `ret` [INFO] [stdout] --> src/lib.rs:40:13 [INFO] [stdout] | [INFO] [stdout] 40 | let mut ret: u64 = 0; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_ret` [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:40:9 [INFO] [stdout] | [INFO] [stdout] 40 | let mut ret: u64 = 0; [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: function is never used: `test_is_not_palindrome` [INFO] [stdout] --> src/lib.rs:112:4 [INFO] [stdout] | [INFO] [stdout] 112 | fn test_is_not_palindrome() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/lib.rs:113:32 [INFO] [stdout] | [INFO] [stdout] 113 | assert!(is_palindrome(71), false); [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_fmt_panic)]` on by default [INFO] [stdout] = note: this is no longer accepted in Rust 2021 [INFO] [stdout] help: add a "{}" format string to Display the message [INFO] [stdout] | [INFO] [stdout] 113 | assert!(is_palindrome(71), "{}", false); [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.26s [INFO] running `Command { std: "docker" "inspect" "810314ad33b659ff2fd95f756a47eab67e8765392d3375e55456e8a931631bc2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "810314ad33b659ff2fd95f756a47eab67e8765392d3375e55456e8a931631bc2", kill_on_drop: false }` [INFO] [stdout] 810314ad33b659ff2fd95f756a47eab67e8765392d3375e55456e8a931631bc2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5edd6aa6e222cd4bc25d9c58f7e724887c828c0f3b176c148557c7541b10d915 [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" "5edd6aa6e222cd4bc25d9c58f7e724887c828c0f3b176c148557c7541b10d915", kill_on_drop: false }` [INFO] [stdout] warning: unused variable: `ret` [INFO] [stdout] --> src/lib.rs:40:13 [INFO] [stdout] | [INFO] [stdout] 40 | let mut ret: u64 = 0; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_ret` [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:40:9 [INFO] [stdout] | [INFO] [stdout] 40 | let mut ret: u64 = 0; [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] [stderr] Compiling mascheroni v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: function is never used: `test_is_not_palindrome` [INFO] [stdout] --> src/lib.rs:112:4 [INFO] [stdout] | [INFO] [stdout] 112 | fn test_is_not_palindrome() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/lib.rs:113:32 [INFO] [stdout] | [INFO] [stdout] 113 | assert!(is_palindrome(71), false); [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_fmt_panic)]` on by default [INFO] [stdout] = note: this is no longer accepted in Rust 2021 [INFO] [stdout] help: add a "{}" format string to Display the message [INFO] [stdout] | [INFO] [stdout] 113 | assert!(is_palindrome(71), "{}", false); [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ret` [INFO] [stdout] --> src/lib.rs:40:13 [INFO] [stdout] | [INFO] [stdout] 40 | let mut ret: u64 = 0; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_ret` [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:40:9 [INFO] [stdout] | [INFO] [stdout] 40 | let mut ret: u64 = 0; [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: function is never used: `test_is_not_palindrome` [INFO] [stdout] --> src/lib.rs:112:4 [INFO] [stdout] | [INFO] [stdout] 112 | fn test_is_not_palindrome() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/lib.rs:113:32 [INFO] [stdout] | [INFO] [stdout] 113 | assert!(is_palindrome(71), false); [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_fmt_panic)]` on by default [INFO] [stdout] = note: this is no longer accepted in Rust 2021 [INFO] [stdout] help: add a "{}" format string to Display the message [INFO] [stdout] | [INFO] [stdout] 113 | assert!(is_palindrome(71), "{}", false); [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/lib.rs:118:37 [INFO] [stdout] | [INFO] [stdout] 118 | assert!(is_palindrome(1001001), true); [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this is no longer accepted in Rust 2021 [INFO] [stdout] help: add a "{}" format string to Display the message [INFO] [stdout] | [INFO] [stdout] 118 | assert!(is_palindrome(1001001), "{}", true); [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.47s [INFO] running `Command { std: "docker" "inspect" "5edd6aa6e222cd4bc25d9c58f7e724887c828c0f3b176c148557c7541b10d915", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5edd6aa6e222cd4bc25d9c58f7e724887c828c0f3b176c148557c7541b10d915", kill_on_drop: false }` [INFO] [stdout] 5edd6aa6e222cd4bc25d9c58f7e724887c828c0f3b176c148557c7541b10d915 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] ab679cb678a738ba5f2b121d045754995fd4fbbc03255e792afc07787533ab0c [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" "ab679cb678a738ba5f2b121d045754995fd4fbbc03255e792afc07787533ab0c", kill_on_drop: false }` [INFO] [stderr] warning: unused variable: `ret` [INFO] [stderr] --> src/lib.rs:40:13 [INFO] [stderr] | [INFO] [stderr] 40 | let mut ret: u64 = 0; [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_ret` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:40:9 [INFO] [stderr] | [INFO] [stderr] 40 | let mut ret: u64 = 0; [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_is_not_palindrome` [INFO] [stderr] --> src/lib.rs:112:4 [INFO] [stderr] | [INFO] [stderr] 112 | fn test_is_not_palindrome() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: panic message is not a string literal [INFO] [stderr] --> src/lib.rs:113:32 [INFO] [stderr] | [INFO] [stderr] 113 | assert!(is_palindrome(71), false); [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_fmt_panic)]` on by default [INFO] [stderr] = note: this is no longer accepted in Rust 2021 [INFO] [stderr] help: add a "{}" format string to Display the message [INFO] [stderr] | [INFO] [stderr] 113 | assert!(is_palindrome(71), "{}", false); [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 4 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ret` [INFO] [stderr] --> src/lib.rs:40:13 [INFO] [stderr] | [INFO] [stderr] 40 | let mut ret: u64 = 0; [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_ret` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:40:9 [INFO] [stderr] | [INFO] [stderr] 40 | let mut ret: u64 = 0; [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_is_not_palindrome` [INFO] [stderr] --> src/lib.rs:112:4 [INFO] [stderr] | [INFO] [stderr] 112 | fn test_is_not_palindrome() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: panic message is not a string literal [INFO] [stderr] --> src/lib.rs:113:32 [INFO] [stderr] | [INFO] [stderr] 113 | assert!(is_palindrome(71), false); [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_fmt_panic)]` on by default [INFO] [stderr] = note: this is no longer accepted in Rust 2021 [INFO] [stderr] help: add a "{}" format string to Display the message [INFO] [stderr] | [INFO] [stderr] 113 | assert!(is_palindrome(71), "{}", false); [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: panic message is not a string literal [INFO] [stderr] --> src/lib.rs:118:37 [INFO] [stderr] | [INFO] [stderr] 118 | assert!(is_palindrome(1001001), true); [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this is no longer accepted in Rust 2021 [INFO] [stderr] help: add a "{}" format string to Display the message [INFO] [stderr] | [INFO] [stderr] 118 | assert!(is_palindrome(1001001), "{}", true); [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 5 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/mascheroni-226270b0ae1cb371) [INFO] [stdout] [INFO] [stderr] Doc-tests mascheroni [INFO] [stdout] running 2 tests [INFO] [stdout] test test_is_palindrome ... ok [INFO] [stdout] test test_string2u64 ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "ab679cb678a738ba5f2b121d045754995fd4fbbc03255e792afc07787533ab0c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ab679cb678a738ba5f2b121d045754995fd4fbbc03255e792afc07787533ab0c", kill_on_drop: false }` [INFO] [stdout] ab679cb678a738ba5f2b121d045754995fd4fbbc03255e792afc07787533ab0c