[INFO] cloning repository https://github.com/satanson/rust_etudes [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/satanson/rust_etudes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsatanson%2Frust_etudes", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsatanson%2Frust_etudes'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0501fe82134be8ab3428a96b7818367e4bb95d77 [INFO] testing satanson/rust_etudes against beta-2022-02-22 for beta-1.60-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsatanson%2Frust_etudes" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/satanson/rust_etudes on toolchain beta-2022-02-22 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/satanson/rust_etudes [INFO] finished tweaking git repo https://github.com/satanson/rust_etudes [INFO] tweaked toml for git repo https://github.com/satanson/rust_etudes written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/satanson/rust_etudes already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1f7061c4d3ff225519b1944f1e0d46a31c50fad1ee309e593f94842f0aa20b89 [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" "1f7061c4d3ff225519b1944f1e0d46a31c50fad1ee309e593f94842f0aa20b89", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1f7061c4d3ff225519b1944f1e0d46a31c50fad1ee309e593f94842f0aa20b89", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1f7061c4d3ff225519b1944f1e0d46a31c50fad1ee309e593f94842f0aa20b89", kill_on_drop: false }` [INFO] [stdout] 1f7061c4d3ff225519b1944f1e0d46a31c50fad1ee309e593f94842f0aa20b89 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] c033edf8f4db14acefea275111e92fa64489f8213615c6abc1fa49cf929ec63a [INFO] running `Command { std: "docker" "start" "-a" "c033edf8f4db14acefea275111e92fa64489f8213615c6abc1fa49cf929ec63a", kill_on_drop: false }` [INFO] [stderr] Compiling common v0.1.0 (/opt/rustwide/workdir/common) [INFO] [stderr] Compiling my_proc_macro v1.0.0 (/opt/rustwide/workdir/my_proc_macro) [INFO] [stderr] Compiling n049_Group_Anagrams v0.1.0 (/opt/rustwide/workdir/n049_Group_Anagrams) [INFO] [stderr] Compiling n032_Longest_Valid_Parentheses v0.1.0 (/opt/rustwide/workdir/n032_Longest_Valid_Parentheses) [INFO] [stderr] Compiling two_sum v0.1.0 (/opt/rustwide/workdir/two_sum) [INFO] [stderr] Compiling n016_3Sum_Closest v0.1.0 (/opt/rustwide/workdir/n016_3Sum_Closest) [INFO] [stderr] Compiling n050_Pow_x_n v0.1.0 (/opt/rustwide/workdir/n050_Pow_x_n) [INFO] [stderr] Compiling n013_Roman_to_Integer v0.1.0 (/opt/rustwide/workdir/n013_Roman_to_Integer) [INFO] [stderr] Compiling Longest_Substring_Without_Repeating_Characters v0.1.0 (/opt/rustwide/workdir/Longest_Substring_Without_Repeating_Characters) [INFO] [stderr] Compiling conditional_compiling v0.1.0 (/opt/rustwide/workdir/conditional_compiling) [INFO] [stderr] Compiling n035_Search_Insert_Position v0.1.0 (/opt/rustwide/workdir/n035_Search_Insert_Position) [INFO] [stderr] Compiling Median_of_Two_Sorted_Arrays v0.1.0 (/opt/rustwide/workdir/Median_of_Two_Sorted_Arrays) [INFO] [stderr] Compiling n043_Multiply_Strings v0.1.0 (/opt/rustwide/workdir/n043_Multiply_Strings) [INFO] [stderr] Compiling n033_Search_in_Rotated_Sorted_Array v0.1.0 (/opt/rustwide/workdir/n033_Search_in_Rotated_Sorted_Array) [INFO] [stderr] Compiling n051_N_Queens v0.1.0 (/opt/rustwide/workdir/n051_N_Queens) [INFO] [stderr] Compiling etudes v0.1.0 (/opt/rustwide/workdir/etudes) [INFO] [stdout] warning: crate `n050_Pow_x_n` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `n050_pow_x_n` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `...` range patterns are deprecated [INFO] [stdout] --> common/src/lib.rs:62:12 [INFO] [stdout] | [INFO] [stdout] 62 | '1'...'9' => { [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `k` [INFO] [stdout] --> n032_Longest_Valid_Parentheses/src/main.rs:18:17 [INFO] [stdout] | [INFO] [stdout] 18 | (Some(&(k, 'M')), ')') => { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_k` [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] --> n032_Longest_Valid_Parentheses/src/main.rs:12:15 [INFO] [stdout] | [INFO] [stdout] 12 | let mut tmp = i + 1 - j; [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] --> n032_Longest_Valid_Parentheses/src/main.rs:23:19 [INFO] [stdout] | [INFO] [stdout] 23 | let mut tmp = i + 1 - l; [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `n032_Longest_Valid_Parentheses` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `n032_longest_valid_parentheses` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `n035_Search_Insert_Position` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `n035_search_insert_position` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `Pair` in this scope [INFO] [stdout] --> n051_N_Queens/src/main.rs:6:21 [INFO] [stdout] | [INFO] [stdout] 4 | struct StkElm { [INFO] [stdout] | - help: you might be missing a type parameter: `` [INFO] [stdout] 5 | pos: Pos, [INFO] [stdout] 6 | alternatives: Vec [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `Median_of_Two_Sorted_Arrays` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `median_of_two_sorted_arrays` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: comparison is useless due to type limits [INFO] [stdout] --> Median_of_Two_Sorted_Arrays/src/main.rs:11:16 [INFO] [stdout] | [INFO] [stdout] 11 | assert_eq!(0 <= k && k < a_len + b_len, true); [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_comparisons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `n016_3Sum_Closest` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `n016_3_sum_closest` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0412`. [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> n043_Multiply_Strings/src/main.rs:25:11 [INFO] [stdout] | [INFO] [stdout] 25 | let mut m = k + a.len(); [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: crate `n043_Multiply_Strings` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `n043_multiply_strings` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `i` is never read [INFO] [stdout] --> n013_Roman_to_Integer/src/main.rs:98:7 [INFO] [stdout] | [INFO] [stdout] 98 | i += advance; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `n051_N_Queens` due to 2 previous errors [INFO] [stdout] warning: crate `n013_Roman_to_Integer` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `n013_roman_to_integer` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unused variable: `s1` [INFO] [stdout] --> Longest_Substring_Without_Repeating_Characters/src/main.rs:44:7 [INFO] [stdout] | [INFO] [stdout] 44 | let s1 = "abcdefg"; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s2` [INFO] [stdout] --> Longest_Substring_Without_Repeating_Characters/src/main.rs:45:7 [INFO] [stdout] | [INFO] [stdout] 45 | let s2 = "aaaaaaa"; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s3` [INFO] [stdout] --> Longest_Substring_Without_Repeating_Characters/src/main.rs:46:7 [INFO] [stdout] | [INFO] [stdout] 46 | let s3 = "abcdaabc"; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s3` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `Longest_Substring_Without_Repeating_Characters` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `longest_substring_without_repeating_characters` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> etudes/src/util/mod.rs:153:11 [INFO] [stdout] | [INFO] [stdout] 153 | let a: &TraitA = &StructA {}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 153 - let a: &TraitA = &StructA {}; [INFO] [stdout] 153 + let a: &dyn TraitA = &StructA {}; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> etudes/src/util/mod.rs:153:7 [INFO] [stdout] | [INFO] [stdout] 153 | let a: &TraitA = &StructA {}; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [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] --> etudes/src/util/mod.rs:124:7 [INFO] [stdout] | [INFO] [stdout] 124 | let mut a = Wrapper(&s); [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: crate `n033_Search_in_Rotated_Sorted_Array` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `n033_search_in_rotated_sorted_array` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `n049_Group_Anagrams` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `n049_group_anagrams` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "c033edf8f4db14acefea275111e92fa64489f8213615c6abc1fa49cf929ec63a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c033edf8f4db14acefea275111e92fa64489f8213615c6abc1fa49cf929ec63a", kill_on_drop: false }` [INFO] [stdout] c033edf8f4db14acefea275111e92fa64489f8213615c6abc1fa49cf929ec63a