[INFO] cloning repository https://github.com/ose20/oselib [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ose20/oselib" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fose20%2Foselib", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fose20%2Foselib'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7564e17742da0f25ee636e02a813a68fccd40554 [INFO] checking ose20/oselib against master#cd805f09ffbfa3896c8f50a619de9b67e1d9f3c3 for pr-135841 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fose20%2Foselib" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ose20/oselib on toolchain cd805f09ffbfa3896c8f50a619de9b67e1d9f3c3 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cd805f09ffbfa3896c8f50a619de9b67e1d9f3c3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ose20/oselib [INFO] finished tweaking git repo https://github.com/ose20/oselib [INFO] tweaked toml for git repo https://github.com/ose20/oselib written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/ose20/oselib 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" "+cd805f09ffbfa3896c8f50a619de9b67e1d9f3c3" "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-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+cd805f09ffbfa3896c8f50a619de9b67e1d9f3c3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c7ba64f946f5e3dfd28041a7dad799ac0a7282313edc758f83e57bb221e733c3 [INFO] running `Command { std: "docker" "start" "-a" "c7ba64f946f5e3dfd28041a7dad799ac0a7282313edc758f83e57bb221e733c3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c7ba64f946f5e3dfd28041a7dad799ac0a7282313edc758f83e57bb221e733c3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c7ba64f946f5e3dfd28041a7dad799ac0a7282313edc758f83e57bb221e733c3", kill_on_drop: false }` [INFO] [stdout] c7ba64f946f5e3dfd28041a7dad799ac0a7282313edc758f83e57bb221e733c3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+cd805f09ffbfa3896c8f50a619de9b67e1d9f3c3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2a04df34cd2b0d09cf22b43b03fcb2f1e963ec24152c73158a26b0bbf351d232 [INFO] running `Command { std: "docker" "start" "-a" "2a04df34cd2b0d09cf22b43b03fcb2f1e963ec24152c73158a26b0bbf351d232", kill_on_drop: false }` [INFO] [stderr] Checking oselib v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/lib.rs:144:17 [INFO] [stdout] | [INFO] [stdout] 144 | let mut t = vec![0; len + 1]; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [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:144:13 [INFO] [stdout] | [INFO] [stdout] 144 | let mut t = vec![0; len + 1]; [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: struct `CumulativeSum` is never constructed [INFO] [stdout] --> src/lib.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | struct CumulativeSum [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/lib.rs:144:17 [INFO] [stdout] | [INFO] [stdout] 144 | let mut t = vec![0; len + 1]; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `get_interval_sum` are never used [INFO] [stdout] --> src/lib.rs:19:8 [INFO] [stdout] | [INFO] [stdout] 15 | / impl CumulativeSum [INFO] [stdout] 16 | | where [INFO] [stdout] 17 | | T: Add + Sub + Copy, [INFO] [stdout] | |________________________________________________- associated items in this implementation [INFO] [stdout] 18 | { [INFO] [stdout] 19 | fn new(v: &Vec) -> CumulativeSum { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 30 | fn get_interval_sum(&self, left: usize, right: usize) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Comb` is never constructed [INFO] [stdout] --> src/lib.rs:56:8 [INFO] [stdout] | [INFO] [stdout] 56 | struct Comb { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `init` and `com` are never used [INFO] [stdout] --> src/lib.rs:67:8 [INFO] [stdout] | [INFO] [stdout] 66 | impl Comb { [INFO] [stdout] | --------- associated items in this implementation [INFO] [stdout] 67 | fn init(n: i64, modulo: i64) -> Comb { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 97 | fn com(&self, n: i64, k: i64) -> i64 { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `StringHash` is never constructed [INFO] [stdout] --> src/lib.rs:118:8 [INFO] [stdout] | [INFO] [stdout] 118 | struct StringHash { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `alpha_to_u64`, `init`, and `hash` are never used [INFO] [stdout] --> src/lib.rs:132:8 [INFO] [stdout] | [INFO] [stdout] 131 | impl StringHash { [INFO] [stdout] | --------------- associated items in this implementation [INFO] [stdout] 132 | fn alpha_to_u64(c: char) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 139 | fn init(string: &String) -> StringHash { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 172 | fn hash(&self, l: usize, r: usize) -> u64 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Monoid` is never used [INFO] [stdout] --> src/lib.rs:188:7 [INFO] [stdout] | [INFO] [stdout] 188 | trait Monoid { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `SegmentTree` is never constructed [INFO] [stdout] --> src/lib.rs:200:8 [INFO] [stdout] | [INFO] [stdout] 200 | struct SegmentTree { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `init`, `update`, and `fold` are never used [INFO] [stdout] --> src/lib.rs:215:8 [INFO] [stdout] | [INFO] [stdout] 209 | / impl SegmentTree [INFO] [stdout] 210 | | where [INFO] [stdout] 211 | | T: Monoid + Clone + Copy, [INFO] [stdout] | |_____________________________- associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 215 | fn init(v: &Vec) -> SegmentTree { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 237 | fn update(&mut self, i: usize, val: T) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 256 | fn fold(&self, l: usize, r: usize) -> T { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `dijkstra` is never used [INFO] [stdout] --> src/lib.rs:300:4 [INFO] [stdout] | [INFO] [stdout] 300 | fn dijkstra(start: usize, adj: &Vec>) -> Vec { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `UnionFind` is never constructed [INFO] [stdout] --> src/lib.rs:330:8 [INFO] [stdout] | [INFO] [stdout] 330 | struct UnionFind { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `init`, `root`, `is_same`, `unite`, and `size` are never used [INFO] [stdout] --> src/lib.rs:341:8 [INFO] [stdout] | [INFO] [stdout] 340 | impl UnionFind { [INFO] [stdout] | -------------- associated items in this implementation [INFO] [stdout] 341 | fn init(n: usize) -> Self { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 349 | fn root(&mut self, x: usize) -> usize { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 358 | fn is_same(&mut self, x: usize, y: usize) -> bool { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 362 | fn unite(&mut self, x: usize, y: usize) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 385 | fn size(&mut self, x: usize) -> usize { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:144:13 [INFO] [stdout] | [INFO] [stdout] 144 | let mut t = vec![0; len + 1]; [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: struct `CumulativeSum` is never constructed [INFO] [stdout] --> src/lib.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | struct CumulativeSum [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `get_interval_sum` are never used [INFO] [stdout] --> src/lib.rs:19:8 [INFO] [stdout] | [INFO] [stdout] 15 | / impl CumulativeSum [INFO] [stdout] 16 | | where [INFO] [stdout] 17 | | T: Add + Sub + Copy, [INFO] [stdout] | |________________________________________________- associated items in this implementation [INFO] [stdout] 18 | { [INFO] [stdout] 19 | fn new(v: &Vec) -> CumulativeSum { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 30 | fn get_interval_sum(&self, left: usize, right: usize) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Comb` is never constructed [INFO] [stdout] --> src/lib.rs:56:8 [INFO] [stdout] | [INFO] [stdout] 56 | struct Comb { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `init` and `com` are never used [INFO] [stdout] --> src/lib.rs:67:8 [INFO] [stdout] | [INFO] [stdout] 66 | impl Comb { [INFO] [stdout] | --------- associated items in this implementation [INFO] [stdout] 67 | fn init(n: i64, modulo: i64) -> Comb { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 97 | fn com(&self, n: i64, k: i64) -> i64 { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `StringHash` is never constructed [INFO] [stdout] --> src/lib.rs:118:8 [INFO] [stdout] | [INFO] [stdout] 118 | struct StringHash { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `alpha_to_u64`, `init`, and `hash` are never used [INFO] [stdout] --> src/lib.rs:132:8 [INFO] [stdout] | [INFO] [stdout] 131 | impl StringHash { [INFO] [stdout] | --------------- associated items in this implementation [INFO] [stdout] 132 | fn alpha_to_u64(c: char) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 139 | fn init(string: &String) -> StringHash { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 172 | fn hash(&self, l: usize, r: usize) -> u64 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Monoid` is never used [INFO] [stdout] --> src/lib.rs:188:7 [INFO] [stdout] | [INFO] [stdout] 188 | trait Monoid { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `SegmentTree` is never constructed [INFO] [stdout] --> src/lib.rs:200:8 [INFO] [stdout] | [INFO] [stdout] 200 | struct SegmentTree { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `init`, `update`, and `fold` are never used [INFO] [stdout] --> src/lib.rs:215:8 [INFO] [stdout] | [INFO] [stdout] 209 | / impl SegmentTree [INFO] [stdout] 210 | | where [INFO] [stdout] 211 | | T: Monoid + Clone + Copy, [INFO] [stdout] | |_____________________________- associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 215 | fn init(v: &Vec) -> SegmentTree { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 237 | fn update(&mut self, i: usize, val: T) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 256 | fn fold(&self, l: usize, r: usize) -> T { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `dijkstra` is never used [INFO] [stdout] --> src/lib.rs:300:4 [INFO] [stdout] | [INFO] [stdout] 300 | fn dijkstra(start: usize, adj: &Vec>) -> Vec { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `UnionFind` is never constructed [INFO] [stdout] --> src/lib.rs:330:8 [INFO] [stdout] | [INFO] [stdout] 330 | struct UnionFind { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `init`, `root`, `is_same`, `unite`, and `size` are never used [INFO] [stdout] --> src/lib.rs:341:8 [INFO] [stdout] | [INFO] [stdout] 340 | impl UnionFind { [INFO] [stdout] | -------------- associated items in this implementation [INFO] [stdout] 341 | fn init(n: usize) -> Self { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 349 | fn root(&mut self, x: usize) -> usize { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 358 | fn is_same(&mut self, x: usize, y: usize) -> bool { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 362 | fn unite(&mut self, x: usize, y: usize) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 385 | fn size(&mut self, x: usize) -> usize { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.29s [INFO] running `Command { std: "docker" "inspect" "2a04df34cd2b0d09cf22b43b03fcb2f1e963ec24152c73158a26b0bbf351d232", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2a04df34cd2b0d09cf22b43b03fcb2f1e963ec24152c73158a26b0bbf351d232", kill_on_drop: false }` [INFO] [stdout] 2a04df34cd2b0d09cf22b43b03fcb2f1e963ec24152c73158a26b0bbf351d232