[INFO] cloning repository https://github.com/nuts-rice/linked_list_rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nuts-rice/linked_list_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnuts-rice%2Flinked_list_rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnuts-rice%2Flinked_list_rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] bdcb61d29b95c9325bc000569728e15a34f5640a [INFO] testing nuts-rice/linked_list_rust against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnuts-rice%2Flinked_list_rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/nuts-rice/linked_list_rust [INFO] finished tweaking git repo https://github.com/nuts-rice/linked_list_rust [INFO] tweaked toml for git repo https://github.com/nuts-rice/linked_list_rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/nuts-rice/linked_list_rust on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/nuts-rice/linked_list_rust 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 64923d5f30f05d806d313dbcdd90a6e244cbbdea71bb6b58d3ec6fe9b191ee72 [INFO] running `Command { std: "docker" "start" "-a" "64923d5f30f05d806d313dbcdd90a6e244cbbdea71bb6b58d3ec6fe9b191ee72", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "64923d5f30f05d806d313dbcdd90a6e244cbbdea71bb6b58d3ec6fe9b191ee72", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "64923d5f30f05d806d313dbcdd90a6e244cbbdea71bb6b58d3ec6fe9b191ee72", kill_on_drop: false }` [INFO] [stdout] 64923d5f30f05d806d313dbcdd90a6e244cbbdea71bb6b58d3ec6fe9b191ee72 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e448c2d8fd8ebe6e199ca7ed7c8a635584a328b1347850ed33d3ac36a9225f2b [INFO] running `Command { std: "docker" "start" "-a" "e448c2d8fd8ebe6e199ca7ed7c8a635584a328b1347850ed33d3ac36a9225f2b", kill_on_drop: false }` [INFO] [stderr] Compiling linked-list v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::mem` [INFO] [stdout] --> src/queue.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use std::mem; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::List` [INFO] [stdout] --> src/queue.rs:73:9 [INFO] [stdout] | [INFO] [stdout] 73 | use super::List; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::mem` [INFO] [stdout] --> src/second.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::mem; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `core::fmt::Debug` [INFO] [stdout] --> src/MergeSort.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use core::fmt::Debug; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::mem` [INFO] [stdout] --> src/unsafe_queue.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::mem; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::List` [INFO] [stdout] --> src/unsafe_queue.rs:128:9 [INFO] [stdout] | [INFO] [stdout] 128 | use super::List; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/fourth.rs:48:24 [INFO] [stdout] | [INFO] [stdout] 48 | pub struct Iter<'a, T>(Option>>); [INFO] [stdout] | ---- ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `partition` is never used [INFO] [stdout] --> src/QuickSort.rs:1:4 [INFO] [stdout] | [INFO] [stdout] 1 | fn partition(slice: &mut[i32]) -> usize { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `quick_sort` is never used [INFO] [stdout] --> src/QuickSort.rs:18:4 [INFO] [stdout] | [INFO] [stdout] 18 | fn quick_sort(slice: &mut [i32]) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `assert_sorted` is never used [INFO] [stdout] --> src/QuickSort.rs:29:4 [INFO] [stdout] | [INFO] [stdout] 29 | fn assert_sorted(slice: &[i32]) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: module `MergeSort` should have a snake case name [INFO] [stdout] --> src/main.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | pub mod MergeSort; [INFO] [stdout] | ^^^^^^^^^ help: convert the identifier to snake case: `merge_sort` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: module `QuickSort` should have a snake case name [INFO] [stdout] --> src/main.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | pub mod QuickSort; [INFO] [stdout] | ^^^^^^^^^ help: convert the identifier to snake case: `quick_sort` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/fourth.rs:110:23 [INFO] [stdout] | [INFO] [stdout] 110 | pub fn peek_front(&self) -> Option> { [INFO] [stdout] | ^^^^^ ^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 110 | pub fn peek_front(&self) -> Option> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/fourth.rs:152:22 [INFO] [stdout] | [INFO] [stdout] 152 | pub fn peek_back(&self) -> Option> { [INFO] [stdout] | ^^^^^ ^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 152 | pub fn peek_back(&self) -> Option> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/fourth.rs:158:26 [INFO] [stdout] | [INFO] [stdout] 158 | pub fn peek_back_mut(&mut self) -> Option> { [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 158 | pub fn peek_back_mut(&mut self) -> Option> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/fourth.rs:164:27 [INFO] [stdout] | [INFO] [stdout] 164 | pub fn peek_front_mut(&mut self) -> Option> { [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 164 | pub fn peek_front_mut(&mut self) -> Option> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/fourth.rs:174:17 [INFO] [stdout] | [INFO] [stdout] 174 | pub fn iter(&self) -> Iter { [INFO] [stdout] | ^^^^^ ^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 174 | pub fn iter(&self) -> Iter<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.35s [INFO] running `Command { std: "docker" "inspect" "e448c2d8fd8ebe6e199ca7ed7c8a635584a328b1347850ed33d3ac36a9225f2b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e448c2d8fd8ebe6e199ca7ed7c8a635584a328b1347850ed33d3ac36a9225f2b", kill_on_drop: false }` [INFO] [stdout] e448c2d8fd8ebe6e199ca7ed7c8a635584a328b1347850ed33d3ac36a9225f2b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 033b087043011ad55d02b61de0d3ad047db359838a4474c811bf251f54688d67 [INFO] running `Command { std: "docker" "start" "-a" "033b087043011ad55d02b61de0d3ad047db359838a4474c811bf251f54688d67", kill_on_drop: false }` [INFO] [stderr] Compiling linked-list v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::mem` [INFO] [stdout] --> src/queue.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use std::mem; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::mem` [INFO] [stdout] --> src/second.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::mem; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `core::fmt::Debug` [INFO] [stdout] --> src/MergeSort.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use core::fmt::Debug; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::mem` [INFO] [stdout] --> src/unsafe_queue.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::mem; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/fourth.rs:48:24 [INFO] [stdout] | [INFO] [stdout] 48 | pub struct Iter<'a, T>(Option>>); [INFO] [stdout] | ---- ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `iter` is never used [INFO] [stdout] --> src/third.rs:103:8 [INFO] [stdout] | [INFO] [stdout] 103 | fn iter() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: module `MergeSort` should have a snake case name [INFO] [stdout] --> src/main.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | pub mod MergeSort; [INFO] [stdout] | ^^^^^^^^^ help: convert the identifier to snake case: `merge_sort` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: module `QuickSort` should have a snake case name [INFO] [stdout] --> src/main.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | pub mod QuickSort; [INFO] [stdout] | ^^^^^^^^^ help: convert the identifier to snake case: `quick_sort` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/fourth.rs:110:23 [INFO] [stdout] | [INFO] [stdout] 110 | pub fn peek_front(&self) -> Option> { [INFO] [stdout] | ^^^^^ ^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 110 | pub fn peek_front(&self) -> Option> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/fourth.rs:152:22 [INFO] [stdout] | [INFO] [stdout] 152 | pub fn peek_back(&self) -> Option> { [INFO] [stdout] | ^^^^^ ^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 152 | pub fn peek_back(&self) -> Option> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/fourth.rs:158:26 [INFO] [stdout] | [INFO] [stdout] 158 | pub fn peek_back_mut(&mut self) -> Option> { [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 158 | pub fn peek_back_mut(&mut self) -> Option> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/fourth.rs:164:27 [INFO] [stdout] | [INFO] [stdout] 164 | pub fn peek_front_mut(&mut self) -> Option> { [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 164 | pub fn peek_front_mut(&mut self) -> Option> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/fourth.rs:174:17 [INFO] [stdout] | [INFO] [stdout] 174 | pub fn iter(&self) -> Iter { [INFO] [stdout] | ^^^^^ ^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 174 | pub fn iter(&self) -> Iter<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.95s [INFO] running `Command { std: "docker" "inspect" "033b087043011ad55d02b61de0d3ad047db359838a4474c811bf251f54688d67", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "033b087043011ad55d02b61de0d3ad047db359838a4474c811bf251f54688d67", kill_on_drop: false }` [INFO] [stdout] 033b087043011ad55d02b61de0d3ad047db359838a4474c811bf251f54688d67 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] f8e28413a941fb69a7beafd6bc575ba97541143e890a36979a2164454a985e33 [INFO] running `Command { std: "docker" "start" "-a" "f8e28413a941fb69a7beafd6bc575ba97541143e890a36979a2164454a985e33", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `std::mem` [INFO] [stderr] --> src/queue.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | use std::mem; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::mem` [INFO] [stderr] --> src/second.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::mem; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `core::fmt::Debug` [INFO] [stderr] --> src/MergeSort.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use core::fmt::Debug; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::mem` [INFO] [stderr] --> src/unsafe_queue.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::mem; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field `0` is never read [INFO] [stderr] --> src/fourth.rs:48:24 [INFO] [stderr] | [INFO] [stderr] 48 | pub struct Iter<'a, T>(Option>>); [INFO] [stderr] | ---- ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | field in this struct [INFO] [stderr] | [INFO] [stderr] = help: consider removing this field [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: function `iter` is never used [INFO] [stderr] --> src/third.rs:103:8 [INFO] [stderr] | [INFO] [stderr] 103 | fn iter() { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: module `MergeSort` should have a snake case name [INFO] [stderr] --> src/main.rs:6:9 [INFO] [stderr] | [INFO] [stderr] 6 | pub mod MergeSort; [INFO] [stderr] | ^^^^^^^^^ help: convert the identifier to snake case: `merge_sort` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: module `QuickSort` should have a snake case name [INFO] [stderr] --> src/main.rs:8:9 [INFO] [stderr] | [INFO] [stderr] 8 | pub mod QuickSort; [INFO] [stderr] | ^^^^^^^^^ help: convert the identifier to snake case: `quick_sort` [INFO] [stderr] [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/fourth.rs:110:23 [INFO] [stderr] | [INFO] [stderr] 110 | pub fn peek_front(&self) -> Option> { [INFO] [stderr] | ^^^^^ ^^^^^^ the same lifetime is hidden here [INFO] [stderr] | | [INFO] [stderr] | the lifetime is elided here [INFO] [stderr] | [INFO] [stderr] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stderr] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stderr] help: use `'_` for type paths [INFO] [stderr] | [INFO] [stderr] 110 | pub fn peek_front(&self) -> Option> { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/fourth.rs:152:22 [INFO] [stderr] | [INFO] [stderr] 152 | pub fn peek_back(&self) -> Option> { [INFO] [stderr] | ^^^^^ ^^^^^^ the same lifetime is hidden here [INFO] [stderr] | | [INFO] [stderr] | the lifetime is elided here [INFO] [stderr] | [INFO] [stderr] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stderr] help: use `'_` for type paths [INFO] [stderr] | [INFO] [stderr] 152 | pub fn peek_back(&self) -> Option> { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/fourth.rs:158:26 [INFO] [stderr] | [INFO] [stderr] 158 | pub fn peek_back_mut(&mut self) -> Option> { [INFO] [stderr] | ^^^^^^^^^ ^^^^^^^^^ the same lifetime is hidden here [INFO] [stderr] | | [INFO] [stderr] | the lifetime is elided here [INFO] [stderr] | [INFO] [stderr] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stderr] help: use `'_` for type paths [INFO] [stderr] | [INFO] [stderr] 158 | pub fn peek_back_mut(&mut self) -> Option> { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/fourth.rs:164:27 [INFO] [stderr] | [INFO] [stderr] 164 | pub fn peek_front_mut(&mut self) -> Option> { [INFO] [stderr] | ^^^^^^^^^ ^^^^^^^^^ the same lifetime is hidden here [INFO] [stderr] | | [INFO] [stderr] | the lifetime is elided here [INFO] [stderr] | [INFO] [stderr] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stderr] help: use `'_` for type paths [INFO] [stderr] | [INFO] [stderr] 164 | pub fn peek_front_mut(&mut self) -> Option> { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/fourth.rs:174:17 [INFO] [stderr] | [INFO] [stderr] 174 | pub fn iter(&self) -> Iter { [INFO] [stderr] | ^^^^^ ^^^^^^^ the same lifetime is hidden here [INFO] [stderr] | | [INFO] [stderr] | the lifetime is elided here [INFO] [stderr] | [INFO] [stderr] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stderr] help: use `'_` for type paths [INFO] [stderr] | [INFO] [stderr] 174 | pub fn iter(&self) -> Iter<'_, T> { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: `linked-list` (bin "linked-list" test) generated 13 warnings (run `cargo fix --bin "linked-list" -p linked-list --tests` to apply 9 suggestions) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/linked_list-a52437aa8f6a11ea) [INFO] [stdout] [INFO] [stdout] running 17 tests [INFO] [stdout] test first::test::basics ... ok [INFO] [stdout] test MergeSort::test::basics ... ok [INFO] [stdout] test fourth::test::into_iter ... ok [INFO] [stdout] test fourth::test::peek ... ok [INFO] [stdout] test queue::test::basics ... ok [INFO] [stdout] test second::test::iter_mut ... ok [INFO] [stdout] test second::test::peek ... ok [INFO] [stdout] test second::test::basics ... ok [INFO] [stdout] test second::test::into_iter ... ok [INFO] [stdout] test QuickSort::test::quicksort_test ... ok [INFO] [stdout] test second::test::iter ... ok [INFO] [stdout] test unsafe_queue::test::basics ... ok [INFO] [stdout] test unsafe_queue::test::into_iter ... ok [INFO] [stdout] test unsafe_queue::test::iter ... ok [INFO] [stdout] test unsafe_queue::test::iter_mut ... ok [INFO] [stdout] test fourth::test::basics ... ok [INFO] [stdout] test third::test::basics ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "f8e28413a941fb69a7beafd6bc575ba97541143e890a36979a2164454a985e33", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f8e28413a941fb69a7beafd6bc575ba97541143e890a36979a2164454a985e33", kill_on_drop: false }` [INFO] [stdout] f8e28413a941fb69a7beafd6bc575ba97541143e890a36979a2164454a985e33