[INFO] fetching crate rust_demos 0.1.0... [INFO] testing rust_demos-0.1.0 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1 [INFO] extracting crate rust_demos 0.1.0 into /workspace/builds/worker-3-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-3-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate rust_demos 0.1.0 on toolchain caccb4d0368bd918ef6668af8e13834d07040417 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "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" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded redox_syscall v0.5.11 [INFO] [stderr] Downloaded tokio v1.44.2 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 07c8ae59cd6cc7a0a51ae6f27285c07ad4254a080f07823a76708678b2954674 [INFO] running `Command { std: "docker" "start" "-a" "07c8ae59cd6cc7a0a51ae6f27285c07ad4254a080f07823a76708678b2954674", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "07c8ae59cd6cc7a0a51ae6f27285c07ad4254a080f07823a76708678b2954674", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "07c8ae59cd6cc7a0a51ae6f27285c07ad4254a080f07823a76708678b2954674", kill_on_drop: false }` [INFO] [stdout] 07c8ae59cd6cc7a0a51ae6f27285c07ad4254a080f07823a76708678b2954674 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 847aea5988a41cc4d067adeef6126334cbf6d293aeeeac252c9aaa9f8d9ec806 [INFO] running `Command { std: "docker" "start" "-a" "847aea5988a41cc4d067adeef6126334cbf6d293aeeeac252c9aaa9f8d9ec806", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.95 [INFO] [stderr] Compiling libc v0.2.172 [INFO] [stderr] Compiling smallvec v1.15.0 [INFO] [stderr] Compiling memchr v2.7.4 [INFO] [stderr] Compiling nom v7.1.3 [INFO] [stderr] Compiling quote v1.0.40 [INFO] [stderr] Compiling parking_lot_core v0.9.10 [INFO] [stderr] Compiling mio v1.0.3 [INFO] [stderr] Compiling signal-hook-registry v1.4.2 [INFO] [stderr] Compiling socket2 v0.5.9 [INFO] [stderr] Compiling syn v2.0.100 [INFO] [stderr] Compiling parking_lot v0.12.3 [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 serde v1.0.219 [INFO] [stderr] Compiling serde_json v1.0.140 [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: `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: 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: 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: 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/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 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: 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 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/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 17.56s [INFO] running `Command { std: "docker" "inspect" "847aea5988a41cc4d067adeef6126334cbf6d293aeeeac252c9aaa9f8d9ec806", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "847aea5988a41cc4d067adeef6126334cbf6d293aeeeac252c9aaa9f8d9ec806", kill_on_drop: false }` [INFO] [stdout] 847aea5988a41cc4d067adeef6126334cbf6d293aeeeac252c9aaa9f8d9ec806 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8c08e01332191f957033ba1823e9af5b1a11c0583ba39481180a1cfb9ddd0320 [INFO] running `Command { std: "docker" "start" "-a" "8c08e01332191f957033ba1823e9af5b1a11c0583ba39481180a1cfb9ddd0320", kill_on_drop: false }` [INFO] [stderr] Compiling rust_demos v0.1.0 (/opt/rustwide/workdir) [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: 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: 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: 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 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: 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 `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] [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: `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] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.82s [INFO] running `Command { std: "docker" "inspect" "8c08e01332191f957033ba1823e9af5b1a11c0583ba39481180a1cfb9ddd0320", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8c08e01332191f957033ba1823e9af5b1a11c0583ba39481180a1cfb9ddd0320", kill_on_drop: false }` [INFO] [stdout] 8c08e01332191f957033ba1823e9af5b1a11c0583ba39481180a1cfb9ddd0320 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] ad9e1d137b0aec02000cf3d701e03a9afb4514d043382997dda62175b32b2160 [INFO] running `Command { std: "docker" "start" "-a" "ad9e1d137b0aec02000cf3d701e03a9afb4514d043382997dda62175b32b2160", kill_on_drop: false }` [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: unused variable: `prime` [INFO] [stderr] --> src/bin/error.rs:3:6 [INFO] [stderr] | [INFO] [stderr] 3 | let prime=match is_prime(n){ [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_prime` [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/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: unused variable: `a` [INFO] [stderr] --> src/bin/lifetime.rs:4:6 [INFO] [stderr] | [INFO] [stderr] 4 | let a:u8 = 25; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `p` [INFO] [stderr] --> src/bin/lifetime.rs:5:6 [INFO] [stderr] | [INFO] [stderr] 5 | let p:&u8; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `b` [INFO] [stderr] --> src/bin/lifetime.rs:7:7 [INFO] [stderr] | [INFO] [stderr] 7 | let b:u8 = 50; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stderr] [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: `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: `rust_demos` (bin "error" test) generated 1 warning [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 "lifetime" test) generated 3 warnings [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: 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: unused variable: `error` [INFO] [stderr] --> src/bin/reading.rs:7:21 [INFO] [stderr] | [INFO] [stderr] 7 | unwrap_or_else(|error|{ [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused return value of `must_use` that must be used [INFO] [stderr] --> src/bin/struct.rs:14:4 [INFO] [stderr] | [INFO] [stderr] 14 | format!{"Name is {} age is {} got {} marks",self.name,self.age,self.marks}; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 14 | let _ = format!{"Name is {} age is {} got {} marks",self.name,self.age,self.marks}; [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: `rust_demos` (bin "unique" test) generated 1 warning (run `cargo fix --bin "unique" --tests` to apply 1 suggestion) [INFO] [stderr] warning: `rust_demos` (bin "reading" test) generated 1 warning [INFO] [stderr] warning: `rust_demos` (bin "struct" test) generated 1 warning [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_demos-e7171ededc097784) [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/addAssign_trait.rs (/opt/rustwide/target/debug/deps/addAssign_trait-a6e1ee3811484e15) [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/add_trait.rs (/opt/rustwide/target/debug/deps/add_trait-0b0dfba1fcc76814) [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/area_peri.rs (/opt/rustwide/target/debug/deps/area_peri-de0f3dd961fe98df) [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/arithProg.rs (/opt/rustwide/target/debug/deps/arithProg-317bc0a868367070) [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/basics.rs (/opt/rustwide/target/debug/deps/basics-d756769c3dab890a) [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/closure_factorial.rs (/opt/rustwide/target/debug/deps/closure_factorial-8e57f0b83f2ed8a6) [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/closure_sqrt.rs (/opt/rustwide/target/debug/deps/closure_sqrt-b14bfb2d72e70667) [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/closures.rs (/opt/rustwide/target/debug/deps/closures-fec79387cd6d6bf8) [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/cmdLineArgs.rs (/opt/rustwide/target/debug/deps/cmdLineArgs-239e1a225742bb85) [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/bin/empl_struct.rs (/opt/rustwide/target/debug/deps/empl_struct-02860a72b50b1741) [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/error.rs (/opt/rustwide/target/debug/deps/error-f69bb977319509a7) [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-2ef8a92f0730756f) [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-f4c633a98a3b1f48) [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-947f0e72189ff7a4) [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/largest.rs (/opt/rustwide/target/debug/deps/largest-bcf3c8edd8d70ac5) [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/lifetime.rs (/opt/rustwide/target/debug/deps/lifetime-952794b836b6109d) [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-00fe9e0c822ac6d4) [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_exercise.rs (/opt/rustwide/target/debug/deps/ownership_exercise-7b5ffb72f22b53dc) [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-17e25c56feb30511) [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-f9c8fc5588391aeb) [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-26e56fff95c69aa5) [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/main.rs (/opt/rustwide/target/debug/deps/rust_demos-96c6087d96fa92d3) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/sample.rs (/opt/rustwide/target/debug/deps/sample-daee23287440fc65) [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/slice_input.rs (/opt/rustwide/target/debug/deps/slice_input-7e472d0a74e7ca1f) [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] [stderr] Running unittests src/bin/struct.rs (/opt/rustwide/target/debug/deps/struct-156aa76fe6382b05) [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-de6408cbc2c0fb24) [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" "ad9e1d137b0aec02000cf3d701e03a9afb4514d043382997dda62175b32b2160", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ad9e1d137b0aec02000cf3d701e03a9afb4514d043382997dda62175b32b2160", kill_on_drop: false }` [INFO] [stdout] ad9e1d137b0aec02000cf3d701e03a9afb4514d043382997dda62175b32b2160