[INFO] fetching crate cf-quick-scanf-like-input 0.1.0... [INFO] checking cf-quick-scanf-like-input-0.1.0 against master#9fa580b1175018b0a276b0bc68f9827a106f7260 for pr-82565 [INFO] extracting crate cf-quick-scanf-like-input 0.1.0 into /workspace/builds/worker-6/source [INFO] validating manifest of crates.io crate cf-quick-scanf-like-input 0.1.0 on toolchain 9fa580b1175018b0a276b0bc68f9827a106f7260 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate cf-quick-scanf-like-input 0.1.0 [INFO] finished tweaking crates.io crate cf-quick-scanf-like-input 0.1.0 [INFO] tweaked toml for crates.io crate cf-quick-scanf-like-input 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate crates.io crate cf-quick-scanf-like-input 0.1.0 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 72269d4e6434b78753e2d2926445bee1d80e935d3ced3290b31bee78eccb7e34 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "72269d4e6434b78753e2d2926445bee1d80e935d3ced3290b31bee78eccb7e34", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "72269d4e6434b78753e2d2926445bee1d80e935d3ced3290b31bee78eccb7e34", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "72269d4e6434b78753e2d2926445bee1d80e935d3ced3290b31bee78eccb7e34", kill_on_drop: false }` [INFO] [stdout] 72269d4e6434b78753e2d2926445bee1d80e935d3ced3290b31bee78eccb7e34 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5d03aacee03b2038325978a521af624a10c81e3a5fe4ec600fbe2ccdb419fc78 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "5d03aacee03b2038325978a521af624a10c81e3a5fe4ec600fbe2ccdb419fc78", kill_on_drop: false }` [INFO] [stderr] Checking cf-quick-scanf-like-input v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `Read`, `Write`, `self` [INFO] [stdout] --> src/lib.rs:1:15 [INFO] [stdout] | [INFO] [stdout] 1 | use std::io::{self, Read, Write}; [INFO] [stdout] | ^^^^ ^^^^ ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused macro definition [INFO] [stdout] --> src/lib.rs:3:1 [INFO] [stdout] | [INFO] [stdout] 3 | / macro_rules! read_input_lines { [INFO] [stdout] 4 | | ($buf:ident) => { [INFO] [stdout] 5 | | { [INFO] [stdout] 6 | | let mut stdin = io::stdin(); [INFO] [stdout] ... | [INFO] [stdout] 10 | | } [INFO] [stdout] 11 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_macros)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused macro definition [INFO] [stdout] --> src/lib.rs:13:1 [INFO] [stdout] | [INFO] [stdout] 13 | / macro_rules! read_line_of_vars { [INFO] [stdout] 14 | | ($type:ty, $lines:ident, $($var:ident),+) => { [INFO] [stdout] 15 | | { [INFO] [stdout] 16 | | let (line, rest) = $lines.split_first().unwrap(); [INFO] [stdout] ... | [INFO] [stdout] 41 | | } [INFO] [stdout] 42 | | } [INFO] [stdout] | |_^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Read`, `Write`, `self` [INFO] [stdout] --> src/lib.rs:1:15 [INFO] [stdout] | [INFO] [stdout] 1 | use std::io::{self, Read, Write}; [INFO] [stdout] | ^^^^ ^^^^ ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused macro definition [INFO] [stdout] --> src/lib.rs:3:1 [INFO] [stdout] | [INFO] [stdout] 3 | / macro_rules! read_input_lines { [INFO] [stdout] 4 | | ($buf:ident) => { [INFO] [stdout] 5 | | { [INFO] [stdout] 6 | | let mut stdin = io::stdin(); [INFO] [stdout] ... | [INFO] [stdout] 10 | | } [INFO] [stdout] 11 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_macros)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused macro definition [INFO] [stdout] --> src/lib.rs:13:1 [INFO] [stdout] | [INFO] [stdout] 13 | / macro_rules! read_line_of_vars { [INFO] [stdout] 14 | | ($type:ty, $lines:ident, $($var:ident),+) => { [INFO] [stdout] 15 | | { [INFO] [stdout] 16 | | let (line, rest) = $lines.split_first().unwrap(); [INFO] [stdout] ... | [INFO] [stdout] 41 | | } [INFO] [stdout] 42 | | } [INFO] [stdout] | |_^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Write` [INFO] [stdout] --> src/main.rs:1:27 [INFO] [stdout] | [INFO] [stdout] 1 | use std::io::{self, Read, Write}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Write` [INFO] [stdout] --> src/main.rs:1:27 [INFO] [stdout] | [INFO] [stdout] 1 | use std::io::{self, Read, Write}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `parsed` [INFO] [stdout] --> src/main.rs:30:20 [INFO] [stdout] | [INFO] [stdout] 30 | Some((value, parsed)) => { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parsed` [INFO] [stdout] ... [INFO] [stdout] 54 | read_line_of_vars!(i32, lines, t); [INFO] [stdout] | ---------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `parsed` [INFO] [stdout] --> src/main.rs:30:20 [INFO] [stdout] | [INFO] [stdout] 30 | Some((value, parsed)) => { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parsed` [INFO] [stdout] ... [INFO] [stdout] 58 | read_line_of_vars!(i32, lines, n, x); [INFO] [stdout] | ------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `parsed` [INFO] [stdout] --> src/main.rs:30:20 [INFO] [stdout] | [INFO] [stdout] 30 | Some((value, parsed)) => { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parsed` [INFO] [stdout] ... [INFO] [stdout] 54 | read_line_of_vars!(i32, lines, t); [INFO] [stdout] | ---------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `parsed` [INFO] [stdout] --> src/main.rs:30:20 [INFO] [stdout] | [INFO] [stdout] 30 | Some((value, parsed)) => { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parsed` [INFO] [stdout] ... [INFO] [stdout] 58 | read_line_of_vars!(i32, lines, n, x); [INFO] [stdout] | ------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:7:6 [INFO] [stdout] | [INFO] [stdout] 7 | stdin.read_to_string(&mut $buf); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 50 | let mut lines: &[&str] = read_input_lines!(buf); [INFO] [stdout] | ---------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:7:6 [INFO] [stdout] | [INFO] [stdout] 7 | stdin.read_to_string(&mut $buf); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 50 | let mut lines: &[&str] = read_input_lines!(buf); [INFO] [stdout] | ---------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.67s [INFO] running `Command { std: "docker" "inspect" "5d03aacee03b2038325978a521af624a10c81e3a5fe4ec600fbe2ccdb419fc78", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5d03aacee03b2038325978a521af624a10c81e3a5fe4ec600fbe2ccdb419fc78", kill_on_drop: false }` [INFO] [stdout] 5d03aacee03b2038325978a521af624a10c81e3a5fe4ec600fbe2ccdb419fc78