[INFO] fetching crate rust_demos 0.1.0... [INFO] testing rust_demos-0.1.0 against 1.91.0 for beta-1.92-2 [INFO] extracting crate rust_demos 0.1.0 into /workspace/builds/worker-7-tc1/source [INFO] started tweaking crates.io crate rust_demos 0.1.0 [INFO] finished tweaking crates.io crate rust_demos 0.1.0 [INFO] tweaked toml for crates.io crate rust_demos 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate rust_demos 0.1.0 on toolchain 1.91.0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate rust_demos 0.1.0 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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f77d3d62c432977e69c1dff83c12c4447db50774fad1641b2d768178ca08a716 [INFO] running `Command { std: "docker" "start" "-a" "f77d3d62c432977e69c1dff83c12c4447db50774fad1641b2d768178ca08a716", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f77d3d62c432977e69c1dff83c12c4447db50774fad1641b2d768178ca08a716", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f77d3d62c432977e69c1dff83c12c4447db50774fad1641b2d768178ca08a716", kill_on_drop: false }` [INFO] [stdout] f77d3d62c432977e69c1dff83c12c4447db50774fad1641b2d768178ca08a716 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 755b82cbf7bc3dfccb476ba6fc392a2593c9db390b0f12eda4739240eb732dde [INFO] running `Command { std: "docker" "start" "-a" "755b82cbf7bc3dfccb476ba6fc392a2593c9db390b0f12eda4739240eb732dde", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.95 [INFO] [stderr] Compiling serde v1.0.219 [INFO] [stderr] Compiling smallvec v1.15.0 [INFO] [stderr] Compiling serde_json v1.0.140 [INFO] [stderr] Compiling minimal-lexical v0.2.1 [INFO] [stderr] Compiling socket2 v0.5.9 [INFO] [stderr] Compiling mio v1.0.3 [INFO] [stderr] Compiling signal-hook-registry v1.4.2 [INFO] [stderr] Compiling parking_lot_core v0.9.10 [INFO] [stderr] Compiling nom v7.1.3 [INFO] [stderr] Compiling parking_lot v0.12.3 [INFO] [stderr] Compiling quote v1.0.40 [INFO] [stderr] Compiling syn v2.0.100 [INFO] [stderr] Compiling serde_derive v1.0.219 [INFO] [stderr] Compiling tokio-macros v2.5.0 [INFO] [stderr] Compiling tokio v1.44.2 [INFO] [stderr] Compiling rust_demos v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `prime` [INFO] [stdout] --> src/bin/error.rs:3:6 [INFO] [stdout] | [INFO] [stdout] 3 | let prime=match is_prime(n){ [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_prime` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `get_username` is never used [INFO] [stdout] --> src/bin/slice_input.rs:15:4 [INFO] [stdout] | [INFO] [stdout] 15 | fn get_username(mail:&String)->&str{ [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `empid` is never read [INFO] [stdout] --> src/bin/empl_struct.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 2 | struct Emp{ [INFO] [stdout] | --- field in this struct [INFO] [stdout] 3 | empid:i16, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Emp` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/bin/lifetime.rs:4:6 [INFO] [stdout] | [INFO] [stdout] 4 | let a:u8 = 25; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `example` is assigned to, but never used [INFO] [stdout] --> src/bin/basics.rs:23:13 [INFO] [stdout] | [INFO] [stdout] 23 | let mut example; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_example` instead [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `INCR` [INFO] [stdout] | [INFO] [stdout] 23 - let mut example; [INFO] [stdout] 23 + let mut main::INCR; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `example` is never read [INFO] [stdout] --> src/bin/basics.rs:24:5 [INFO] [stdout] | [INFO] [stdout] 24 | example=10; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p` [INFO] [stdout] --> src/bin/lifetime.rs:5:6 [INFO] [stdout] | [INFO] [stdout] 5 | let p:&u8; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/bin/lifetime.rs:7:7 [INFO] [stdout] | [INFO] [stdout] 7 | let b:u8 = 50; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/basics.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 23 | let mut example; [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/unique.rs:6:6 [INFO] [stdout] | [INFO] [stdout] 6 | let mut word=input.trim().replace("\t","").replace(" ",""); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `must_use` that must be used [INFO] [stdout] --> src/bin/struct.rs:14:4 [INFO] [stdout] | [INFO] [stdout] 14 | format!{"Name is {} age is {} got {} marks",self.name,self.age,self.marks}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 14 | let _ = format!{"Name is {} age is {} got {} marks",self.name,self.age,self.marks}; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/iterators.rs:3:6 [INFO] [stdout] | [INFO] [stdout] 3 | let mut score_iter=scores.iter().clone(); [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `error` [INFO] [stdout] --> src/bin/reading.rs:7:21 [INFO] [stdout] | [INFO] [stdout] 7 | unwrap_or_else(|error|{ [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/sample.rs:46:19 [INFO] [stdout] | [INFO] [stdout] 46 | fn display_strlen(mut s:String)->(String,usize){ [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.02s [INFO] running `Command { std: "docker" "inspect" "755b82cbf7bc3dfccb476ba6fc392a2593c9db390b0f12eda4739240eb732dde", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "755b82cbf7bc3dfccb476ba6fc392a2593c9db390b0f12eda4739240eb732dde", kill_on_drop: false }` [INFO] [stdout] 755b82cbf7bc3dfccb476ba6fc392a2593c9db390b0f12eda4739240eb732dde [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e637fdcd11bc33b6bba33bef24839b5d87ca21e253a8192bade53bf47f5b8dc8 [INFO] running `Command { std: "docker" "start" "-a" "e637fdcd11bc33b6bba33bef24839b5d87ca21e253a8192bade53bf47f5b8dc8", kill_on_drop: false }` [INFO] [stderr] Compiling rust_demos v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/bin/lifetime.rs:4:6 [INFO] [stdout] | [INFO] [stdout] 4 | let a:u8 = 25; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p` [INFO] [stdout] --> src/bin/lifetime.rs:5:6 [INFO] [stdout] | [INFO] [stdout] 5 | let p:&u8; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/bin/lifetime.rs:7:7 [INFO] [stdout] | [INFO] [stdout] 7 | let b:u8 = 50; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `empid` is never read [INFO] [stdout] --> src/bin/empl_struct.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 2 | struct Emp{ [INFO] [stdout] | --- field in this struct [INFO] [stdout] 3 | empid:i16, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Emp` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `get_username` is never used [INFO] [stdout] --> src/bin/slice_input.rs:15:4 [INFO] [stdout] | [INFO] [stdout] 15 | fn get_username(mail:&String)->&str{ [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/iterators.rs:3:6 [INFO] [stdout] | [INFO] [stdout] 3 | let mut score_iter=scores.iter().clone(); [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `prime` [INFO] [stdout] --> src/bin/error.rs:3:6 [INFO] [stdout] | [INFO] [stdout] 3 | let prime=match is_prime(n){ [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_prime` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `must_use` that must be used [INFO] [stdout] --> src/bin/struct.rs:14:4 [INFO] [stdout] | [INFO] [stdout] 14 | format!{"Name is {} age is {} got {} marks",self.name,self.age,self.marks}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 14 | let _ = format!{"Name is {} age is {} got {} marks",self.name,self.age,self.marks}; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `error` [INFO] [stdout] --> src/bin/reading.rs:7:21 [INFO] [stdout] | [INFO] [stdout] 7 | unwrap_or_else(|error|{ [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/unique.rs:6:6 [INFO] [stdout] | [INFO] [stdout] 6 | let mut word=input.trim().replace("\t","").replace(" ",""); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `example` is assigned to, but never used [INFO] [stdout] --> src/bin/basics.rs:23:13 [INFO] [stdout] | [INFO] [stdout] 23 | let mut example; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_example` instead [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `INCR` [INFO] [stdout] | [INFO] [stdout] 23 - let mut example; [INFO] [stdout] 23 + let mut main::INCR; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `example` is never read [INFO] [stdout] --> src/bin/basics.rs:24:5 [INFO] [stdout] | [INFO] [stdout] 24 | example=10; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/basics.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 23 | let mut example; [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/sample.rs:46:19 [INFO] [stdout] | [INFO] [stdout] 46 | fn display_strlen(mut s:String)->(String,usize){ [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.40s [INFO] running `Command { std: "docker" "inspect" "e637fdcd11bc33b6bba33bef24839b5d87ca21e253a8192bade53bf47f5b8dc8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e637fdcd11bc33b6bba33bef24839b5d87ca21e253a8192bade53bf47f5b8dc8", kill_on_drop: false }` [INFO] [stdout] e637fdcd11bc33b6bba33bef24839b5d87ca21e253a8192bade53bf47f5b8dc8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 2c0d1f2036c6a3e22a96afa7551a6417d09adb3260c82c93cdf6f4ea4f055162 [INFO] running `Command { std: "docker" "start" "-a" "2c0d1f2036c6a3e22a96afa7551a6417d09adb3260c82c93cdf6f4ea4f055162", kill_on_drop: false }` [INFO] [stderr] warning: unused return value of `must_use` that must be used [INFO] [stdout] [INFO] [stderr] --> src/bin/struct.rs:14:4 [INFO] [stdout] running 0 tests [INFO] [stderr] | [INFO] [stdout] [INFO] [stderr] 14 | format!{"Name is {} age is {} got {} marks",self.name,self.age,self.marks}; [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] [INFO] [stderr] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] running 0 tests [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] 14 | let _ = format!{"Name is {} age is {} got {} marks",self.name,self.age,self.marks}; [INFO] [stdout] [INFO] [stderr] | +++++++ [INFO] [stdout] [INFO] [stderr] [INFO] [stdout] running 0 tests [INFO] [stderr] warning: unused variable: `prime` [INFO] [stdout] [INFO] [stderr] --> src/bin/error.rs:3:6 [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] | [INFO] [stdout] [INFO] [stderr] 3 | let prime=match is_prime(n){ [INFO] [stdout] [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_prime` [INFO] [stdout] running 0 tests [INFO] [stderr] | [INFO] [stdout] [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] [INFO] [stdout] [INFO] [stderr] warning: unused variable: `a` [INFO] [stdout] [INFO] [stderr] --> src/bin/lifetime.rs:4:6 [INFO] [stdout] running 0 tests [INFO] [stderr] | [INFO] [stdout] [INFO] [stderr] 4 | let a:u8 = 25; [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] running 0 tests [INFO] [stderr] [INFO] [stdout] [INFO] [stderr] warning: unused variable: `p` [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] --> src/bin/lifetime.rs:5:6 [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] [INFO] [stderr] 5 | let p:&u8; [INFO] [stdout] running 0 tests [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stdout] [INFO] [stderr] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] warning: unused variable: `b` [INFO] [stdout] [INFO] [stderr] --> src/bin/lifetime.rs:7:7 [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] running 0 tests [INFO] [stderr] 7 | let b:u8 = 50; [INFO] [stdout] [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] [INFO] [stdout] [INFO] [stderr] warning: unused variable: `error` [INFO] [stdout] [INFO] [stderr] --> src/bin/reading.rs:7:21 [INFO] [stdout] running 0 tests [INFO] [stderr] | [INFO] [stdout] [INFO] [stderr] 7 | unwrap_or_else(|error|{ [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stdout] [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/sample.rs:46:19 [INFO] [stderr] | [INFO] [stderr] 46 | fn display_strlen(mut s:String)->(String,usize){ [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: function `get_username` is never used [INFO] [stderr] --> src/bin/slice_input.rs:15:4 [INFO] [stderr] | [INFO] [stderr] 15 | fn get_username(mail:&String)->&str{ [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: `rust_demos` (bin "struct" test) generated 1 warning [INFO] [stderr] warning: `rust_demos` (bin "error" test) generated 1 warning [INFO] [stderr] warning: `rust_demos` (bin "lifetime" test) generated 3 warnings [INFO] [stderr] warning: `rust_demos` (bin "reading" test) generated 1 warning [INFO] [stderr] warning: `rust_demos` (bin "sample" test) generated 1 warning (run `cargo fix --bin "sample" --tests` to apply 1 suggestion) [INFO] [stderr] warning: `rust_demos` (bin "slice_input" test) generated 1 warning [INFO] [stderr] warning: field `empid` is never read [INFO] [stderr] --> src/bin/empl_struct.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 2 | struct Emp{ [INFO] [stderr] | --- field in this struct [INFO] [stderr] 3 | empid:i16, [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `Emp` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: variable `example` is assigned to, but never used [INFO] [stderr] --> src/bin/basics.rs:23:13 [INFO] [stderr] | [INFO] [stderr] 23 | let mut example; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_example` instead [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] help: you might have meant to pattern match on the similarly named constant `INCR` [INFO] [stderr] | [INFO] [stderr] 23 - let mut example; [INFO] [stderr] 23 + let mut main::INCR; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: value assigned to `example` is never read [INFO] [stderr] --> src/bin/basics.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | example=10; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/basics.rs:23:9 [INFO] [stderr] | [INFO] [stderr] 23 | let mut example; [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/iterators.rs:3:6 [INFO] [stderr] | [INFO] [stderr] 3 | let mut score_iter=scores.iter().clone(); [INFO] [stderr] | ----^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/unique.rs:6:6 [INFO] [stderr] | [INFO] [stderr] 6 | let mut word=input.trim().replace("\t","").replace(" ",""); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: `rust_demos` (bin "empl_struct" test) generated 1 warning [INFO] [stderr] warning: `rust_demos` (bin "basics" test) generated 3 warnings (run `cargo fix --bin "basics" --tests` to apply 2 suggestions) [INFO] [stderr] warning: `rust_demos` (bin "iterators" test) generated 1 warning (run `cargo fix --bin "iterators" --tests` to apply 1 suggestion) [INFO] [stderr] warning: `rust_demos` (bin "unique" test) generated 1 warning (run `cargo fix --bin "unique" --tests` to apply 1 suggestion) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_demos-5282592498c332e5) [INFO] [stderr] Running unittests src/bin/addAssign_trait.rs (/opt/rustwide/target/debug/deps/addAssign_trait-3d05bf9c0704a4eb) [INFO] [stderr] Running unittests src/bin/add_trait.rs (/opt/rustwide/target/debug/deps/add_trait-ffccb0e7c0fc90e9) [INFO] [stderr] Running unittests src/bin/area_peri.rs (/opt/rustwide/target/debug/deps/area_peri-335458f774f70d24) [INFO] [stderr] Running unittests src/bin/arithProg.rs (/opt/rustwide/target/debug/deps/arithProg-042559cf522ad1e2) [INFO] [stderr] Running unittests src/bin/basics.rs (/opt/rustwide/target/debug/deps/basics-9caded8fa5c58556) [INFO] [stderr] Running unittests src/bin/closure_factorial.rs (/opt/rustwide/target/debug/deps/closure_factorial-2e54350808abd949) [INFO] [stderr] Running unittests src/bin/closure_sqrt.rs (/opt/rustwide/target/debug/deps/closure_sqrt-8b98c94c26b95549) [INFO] [stderr] Running unittests src/bin/closures.rs (/opt/rustwide/target/debug/deps/closures-339efd66f42f137c) [INFO] [stderr] Running unittests src/bin/cmdLineArgs.rs (/opt/rustwide/target/debug/deps/cmdLineArgs-cf2344b02b0ab962) [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] [stderr] Running unittests src/bin/empl_struct.rs (/opt/rustwide/target/debug/deps/empl_struct-07646977584a21cc) [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] [stderr] Running unittests src/bin/error.rs (/opt/rustwide/target/debug/deps/error-a414702c46af3d52) [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] [stderr] Running unittests src/bin/fibonacci.rs (/opt/rustwide/target/debug/deps/fibonacci-87cf579c08674eca) [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] [stderr] Running unittests src/bin/hashMap.rs (/opt/rustwide/target/debug/deps/hashMap-e802258f5faf0e7e) [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] [stderr] Running unittests src/bin/iterators.rs (/opt/rustwide/target/debug/deps/iterators-84856079f9daf43b) [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/largest.rs (/opt/rustwide/target/debug/deps/largest-68d52b59aa13ee99) [INFO] [stdout] running 0 tests [INFO] [stderr] Running unittests src/bin/lifetime.rs (/opt/rustwide/target/debug/deps/lifetime-12b79de975a651e4) [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] [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] [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] [stderr] Running unittests src/bin/ownership.rs (/opt/rustwide/target/debug/deps/ownership-d8e8a8c11aff97bc) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/ownership_exercise.rs (/opt/rustwide/target/debug/deps/ownership_exercise-5802055d55f58488) [INFO] [stdout] test result: ok. 0 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] [stderr] Running unittests src/bin/partialOrd_trait.rs (/opt/rustwide/target/debug/deps/partialOrd_trait-1f17bd5fe4c2c52c) [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] [stderr] Running unittests src/bin/query_search.rs (/opt/rustwide/target/debug/deps/query_search-0c4375f3cb6bf57b) [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] [stderr] Running unittests src/bin/reading.rs (/opt/rustwide/target/debug/deps/reading-25c7deee87e81a2d) [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] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_demos-2489d2fd78c06a46) [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] [stderr] Running unittests src/bin/sample.rs (/opt/rustwide/target/debug/deps/sample-01023c49c59191c8) [INFO] [stderr] Running unittests src/bin/slice_input.rs (/opt/rustwide/target/debug/deps/slice_input-883c50b6ac1f10a7) [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] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/struct.rs (/opt/rustwide/target/debug/deps/struct-baa046d184ee73c2) [INFO] [stdout] test result: ok. 0 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] [stderr] Running unittests src/bin/unique.rs (/opt/rustwide/target/debug/deps/unique-a38ff77f2e8edf0d) [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] [stderr] Doc-tests rust_demos [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" "2c0d1f2036c6a3e22a96afa7551a6417d09adb3260c82c93cdf6f4ea4f055162", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2c0d1f2036c6a3e22a96afa7551a6417d09adb3260c82c93cdf6f4ea4f055162", kill_on_drop: false }` [INFO] [stdout] 2c0d1f2036c6a3e22a96afa7551a6417d09adb3260c82c93cdf6f4ea4f055162