[INFO] cloning repository https://github.com/Tazoeur/projecteuler [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Tazoeur/projecteuler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTazoeur%2Fprojecteuler", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTazoeur%2Fprojecteuler'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d03ead78fbc180812af3d7b482dd9dd3e4c2125f [INFO] checking Tazoeur/projecteuler against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTazoeur%2Fprojecteuler" "/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/Tazoeur/projecteuler on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Tazoeur/projecteuler [INFO] finished tweaking git repo https://github.com/Tazoeur/projecteuler [INFO] tweaked toml for git repo https://github.com/Tazoeur/projecteuler written to /workspace/builds/worker-4/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded elastic-array-plus v0.10.0 [INFO] [stderr] Downloaded etcommon-bigint v0.2.10 [INFO] [stderr] Downloaded etcommon-hexutil v0.2.4 [INFO] [stderr] Downloaded etcommon-rlp v0.2.5 [INFO] [stderr] Downloaded fraction v0.6.3 [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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 21af56bbc25909fa85d96703629b5dabd781d2d4eab548ed95622c58cb41ad80 [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" "21af56bbc25909fa85d96703629b5dabd781d2d4eab548ed95622c58cb41ad80", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "21af56bbc25909fa85d96703629b5dabd781d2d4eab548ed95622c58cb41ad80", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "21af56bbc25909fa85d96703629b5dabd781d2d4eab548ed95622c58cb41ad80", kill_on_drop: false }` [INFO] [stdout] 21af56bbc25909fa85d96703629b5dabd781d2d4eab548ed95622c58cb41ad80 [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=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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9b1a44db7db051729898f2d52aa31655283ba6ffe804cf667f20d939bd081687 [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" "9b1a44db7db051729898f2d52aa31655283ba6ffe804cf667f20d939bd081687", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling libc v0.2.88 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Checking adler v1.0.2 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking object v0.23.0 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking etcommon-hexutil v0.2.4 [INFO] [stderr] Checking elastic-array-plus v0.10.0 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Checking svg v0.5.12 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling num-bigint v0.2.6 [INFO] [stderr] Compiling miniz_oxide v0.4.4 [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Compiling num-complex v0.2.4 [INFO] [stderr] Compiling num-rational v0.2.4 [INFO] [stderr] Checking etcommon-rlp v0.2.5 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Compiling syn v1.0.64 [INFO] [stderr] Checking rand v0.3.23 [INFO] [stderr] Checking etcommon-bigint v0.2.10 [INFO] [stderr] Checking backtrace v0.3.56 [INFO] [stderr] Checking num v0.2.1 [INFO] [stderr] Checking fraction v0.6.3 [INFO] [stderr] Compiling synstructure v0.12.4 [INFO] [stderr] Checking failure v0.1.8 [INFO] [stderr] Checking plotlib v0.4.0 [INFO] [stderr] Checking projecteuler v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: value assigned to `result` is never read [INFO] [stdout] --> src/hugeint/mod.rs:28:13 [INFO] [stdout] | [INFO] [stdout] 28 | let mut result = 0; [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] [stdout] warning: value assigned to `self_value` is never read [INFO] [stdout] --> src/hugeint/mod.rs:31:13 [INFO] [stdout] | [INFO] [stdout] 31 | let mut self_value = 0; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `n_value` is never read [INFO] [stdout] --> src/hugeint/mod.rs:32:13 [INFO] [stdout] | [INFO] [stdout] 32 | let mut n_value = 0; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `report` is never read [INFO] [stdout] --> src/hugeint/mod.rs:56:13 [INFO] [stdout] | [INFO] [stdout] 56 | report = 0; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/hugeint/mod.rs:76:17 [INFO] [stdout] | [INFO] [stdout] 76 | for v in 0..value { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `j` [INFO] [stdout] --> src/hugeint/mod.rs:80:17 [INFO] [stdout] | [INFO] [stdout] 80 | for j in 0..i { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_j` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/hugeint/mod.rs:97:13 [INFO] [stdout] | [INFO] [stdout] 97 | for i in 1..n { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `total` is never read [INFO] [stdout] --> src/coin_sums.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let mut total: u64 = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `p_str` is never read [INFO] [stdout] --> src/pandigital_products.rs:80:9 [INFO] [stdout] | [INFO] [stdout] 80 | let mut p_str = String::new(); [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tu` [INFO] [stdout] --> src/pandigital_products.rs:145:10 [INFO] [stdout] | [INFO] [stdout] 145 | for (tu, p) in &tab { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_tu` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tab` [INFO] [stdout] --> src/quadratic_primes.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | let mut tab: Vec<(i64, i64)> = Vec::new(); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tab` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `n` is never read [INFO] [stdout] --> src/quadratic_primes.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let mut n: u64 = 0; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `eq` is never read [INFO] [stdout] --> src/quadratic_primes.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let mut eq: i64 = 0; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `abs_eq` is never read [INFO] [stdout] --> src/quadratic_primes.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let mut abs_eq: u64 = 0; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/quadratic_primes.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | let mut tab: Vec<(i64, i64)> = Vec::new(); [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: value assigned to `result` is never read [INFO] [stdout] --> src/hugeint/mod.rs:28:13 [INFO] [stdout] | [INFO] [stdout] 28 | let mut result = 0; [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] [stdout] warning: value assigned to `self_value` is never read [INFO] [stdout] --> src/hugeint/mod.rs:31:13 [INFO] [stdout] | [INFO] [stdout] 31 | let mut self_value = 0; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `n_value` is never read [INFO] [stdout] --> src/hugeint/mod.rs:32:13 [INFO] [stdout] | [INFO] [stdout] 32 | let mut n_value = 0; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `report` is never read [INFO] [stdout] --> src/hugeint/mod.rs:56:13 [INFO] [stdout] | [INFO] [stdout] 56 | report = 0; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/hugeint/mod.rs:76:17 [INFO] [stdout] | [INFO] [stdout] 76 | for v in 0..value { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `j` [INFO] [stdout] --> src/hugeint/mod.rs:80:17 [INFO] [stdout] | [INFO] [stdout] 80 | for j in 0..i { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_j` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/hugeint/mod.rs:97:13 [INFO] [stdout] | [INFO] [stdout] 97 | for i in 1..n { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `total` is never read [INFO] [stdout] --> src/coin_sums.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let mut total: u64 = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `p_str` is never read [INFO] [stdout] --> src/pandigital_products.rs:80:9 [INFO] [stdout] | [INFO] [stdout] 80 | let mut p_str = String::new(); [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tu` [INFO] [stdout] --> src/pandigital_products.rs:145:10 [INFO] [stdout] | [INFO] [stdout] 145 | for (tu, p) in &tab { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_tu` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tab` [INFO] [stdout] --> src/quadratic_primes.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | let mut tab: Vec<(i64, i64)> = Vec::new(); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tab` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `n` is never read [INFO] [stdout] --> src/quadratic_primes.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let mut n: u64 = 0; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `eq` is never read [INFO] [stdout] --> src/quadratic_primes.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let mut eq: i64 = 0; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `abs_eq` is never read [INFO] [stdout] --> src/quadratic_primes.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let mut abs_eq: u64 = 0; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/quadratic_primes.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | let mut tab: Vec<(i64, i64)> = Vec::new(); [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: unused `Result` that must be used [INFO] [stdout] --> src/digit_fifth_powers.rs:50:5 [INFO] [stdout] | [INFO] [stdout] 50 | Page::single(&v).save("scatter.svg"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 16 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/digit_fifth_powers.rs:50:5 [INFO] [stdout] | [INFO] [stdout] 50 | Page::single(&v).save("scatter.svg"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 16 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `lib_euler::utils::math` [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use lib_euler::utils::math; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `lib_euler::utils::math` [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use lib_euler::utils::math; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [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] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 19.68s [INFO] running `Command { std: "docker" "inspect" "9b1a44db7db051729898f2d52aa31655283ba6ffe804cf667f20d939bd081687", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9b1a44db7db051729898f2d52aa31655283ba6ffe804cf667f20d939bd081687", kill_on_drop: false }` [INFO] [stdout] 9b1a44db7db051729898f2d52aa31655283ba6ffe804cf667f20d939bd081687