[INFO] cloning repository https://github.com/koralle/file-inout [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/koralle/file-inout" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkoralle%2Ffile-inout", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkoralle%2Ffile-inout'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] de00a74828f296fb722a237ea66120ec09ccaf84 [INFO] checking koralle/file-inout against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkoralle%2Ffile-inout" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/koralle/file-inout [INFO] finished tweaking git repo https://github.com/koralle/file-inout [INFO] tweaked toml for git repo https://github.com/koralle/file-inout written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/koralle/file-inout on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/koralle/file-inout 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d9c08fd9b77e853f69861776164ed27c4f27934d3644189e508afd8b3c22836d [INFO] running `Command { std: "docker" "start" "-a" "d9c08fd9b77e853f69861776164ed27c4f27934d3644189e508afd8b3c22836d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d9c08fd9b77e853f69861776164ed27c4f27934d3644189e508afd8b3c22836d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d9c08fd9b77e853f69861776164ed27c4f27934d3644189e508afd8b3c22836d", kill_on_drop: false }` [INFO] [stdout] d9c08fd9b77e853f69861776164ed27c4f27934d3644189e508afd8b3c22836d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Dunmustuse_in_always_ok" "-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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 33183ba0521bd665dbe253d6f9ed5caa7e7caa047fe8c61eac94a922bc761126 [INFO] running `Command { std: "docker" "start" "-a" "33183ba0521bd665dbe253d6f9ed5caa7e7caa047fe8c61eac94a922bc761126", kill_on_drop: false }` [INFO] [stderr] Compiling semver v1.0.5 [INFO] [stderr] Compiling libc v0.2.117 [INFO] [stderr] Compiling unicode-segmentation v1.9.0 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling syn v0.14.9 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling rustc_version v0.4.0 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling rstest v0.12.0 [INFO] [stderr] Compiling structopt-derive v0.4.18 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking structopt v0.3.26 [INFO] [stderr] Compiling speculate v0.1.2 [INFO] [stderr] Checking file-inout v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::io::prelude::*` [INFO] [stdout] --> src/file.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::io::prelude::*; [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 imports: `ErrorKind`, `Read`, `Write`, and `self` [INFO] [stdout] --> src/file.rs:2:15 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::{self, ErrorKind, Read, Write}; [INFO] [stdout] | ^^^^ ^^^^^^^^^ ^^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rstest::*` [INFO] [stdout] --> src/file.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use rstest::*; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `speculate::speculate` [INFO] [stdout] --> src/file.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use speculate::speculate; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `OpenOptions` [INFO] [stdout] --> src/main.rs:7:21 [INFO] [stdout] | [INFO] [stdout] 7 | use std::fs::{File, OpenOptions}; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `ErrorKind` and `Write` [INFO] [stdout] --> src/main.rs:8:21 [INFO] [stdout] | [INFO] [stdout] 8 | use std::io::{self, ErrorKind, Read, Write}; [INFO] [stdout] | ^^^^^^^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Read` [INFO] [stdout] --> src/main.rs:8:32 [INFO] [stdout] | [INFO] [stdout] 8 | use std::io::{self, ErrorKind, Read, Write}; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::prelude::*` [INFO] [stdout] --> src/file.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::io::prelude::*; [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 imports: `ErrorKind`, `Read`, `Write`, and `self` [INFO] [stdout] --> src/file.rs:2:15 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::{self, ErrorKind, Read, Write}; [INFO] [stdout] | ^^^^ ^^^^^^^^^ ^^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `OpenOptions` [INFO] [stdout] --> src/main.rs:7:21 [INFO] [stdout] | [INFO] [stdout] 7 | use std::fs::{File, OpenOptions}; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `file-inout` (bin "file-inout") due to 1 previous error; 5 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unused imports: `ErrorKind` and `Write` [INFO] [stdout] --> src/main.rs:8:21 [INFO] [stdout] | [INFO] [stdout] 8 | use std::io::{self, ErrorKind, Read, Write}; [INFO] [stdout] | ^^^^^^^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Read` [INFO] [stdout] --> src/main.rs:8:32 [INFO] [stdout] | [INFO] [stdout] 8 | use std::io::{self, ErrorKind, Read, Write}; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | / #[structopt( [INFO] [stdout] 17 | | name = "INPUT_FILE", [INFO] [stdout] 18 | | short = "i", [INFO] [stdout] 19 | | long = "input_file", [INFO] [stdout] 20 | | help = "Input a path to simple text file." [INFO] [stdout] 21 | | )] [INFO] [stdout] 22 | | input: PathBuf, [INFO] [stdout] | |__________________^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | / #[structopt( [INFO] [stdout] 17 | | name = "INPUT_FILE", [INFO] [stdout] 18 | | short = "i", [INFO] [stdout] 19 | | long = "input_file", [INFO] [stdout] 20 | | help = "Input a path to simple text file." [INFO] [stdout] 21 | | )] [INFO] [stdout] 22 | | input: PathBuf, [INFO] [stdout] | |__________________^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `file-inout` (bin "file-inout" test) due to 1 previous error; 7 warnings emitted [INFO] running `Command { std: "docker" "inspect" "33183ba0521bd665dbe253d6f9ed5caa7e7caa047fe8c61eac94a922bc761126", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "33183ba0521bd665dbe253d6f9ed5caa7e7caa047fe8c61eac94a922bc761126", kill_on_drop: false }` [INFO] [stdout] 33183ba0521bd665dbe253d6f9ed5caa7e7caa047fe8c61eac94a922bc761126