[INFO] fetching crate tacoda_grrs 0.1.3... [INFO] building tacoda_grrs-0.1.3 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2 [INFO] extracting crate tacoda_grrs 0.1.3 into /workspace/builds/worker-1-tc2/source [INFO] started tweaking crates.io crate tacoda_grrs 0.1.3 [INFO] finished tweaking crates.io crate tacoda_grrs 0.1.3 [INFO] tweaked toml for crates.io crate tacoda_grrs 0.1.3 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate tacoda_grrs 0.1.3 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate tacoda_grrs 0.1.3 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 49b9cd5270a9cc379306e567f0fc0e8de552cf1e2dca4cddd5d09884bdc9ee8a [INFO] running `Command { std: "docker" "start" "-a" "49b9cd5270a9cc379306e567f0fc0e8de552cf1e2dca4cddd5d09884bdc9ee8a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "49b9cd5270a9cc379306e567f0fc0e8de552cf1e2dca4cddd5d09884bdc9ee8a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "49b9cd5270a9cc379306e567f0fc0e8de552cf1e2dca4cddd5d09884bdc9ee8a", kill_on_drop: false }` [INFO] [stdout] 49b9cd5270a9cc379306e567f0fc0e8de552cf1e2dca4cddd5d09884bdc9ee8a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7de2bf742e5854d914f6c0373d9742dfa726313061911845c0fc287a43f15461 [INFO] running `Command { std: "docker" "start" "-a" "7de2bf742e5854d914f6c0373d9742dfa726313061911845c0fc287a43f15461", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.66 [INFO] [stderr] Compiling syn v0.15.36 [INFO] [stderr] Compiling cfg-if v0.1.9 [INFO] [stderr] Compiling autocfg v0.1.4 [INFO] [stderr] Compiling getrandom v0.1.13 [INFO] [stderr] Compiling cc v1.0.37 [INFO] [stderr] Compiling memchr v2.2.0 [INFO] [stderr] Compiling serde v1.0.92 [INFO] [stderr] Compiling ryu v0.2.8 [INFO] [stderr] Compiling lazy_static v1.3.0 [INFO] [stderr] Compiling ppv-lite86 v0.2.6 [INFO] [stderr] Compiling failure_derive v0.1.5 [INFO] [stderr] Compiling regex v1.1.7 [INFO] [stderr] Compiling ucd-util v0.1.3 [INFO] [stderr] Compiling bitflags v1.1.0 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stderr] Compiling thread_local v0.3.6 [INFO] [stderr] Compiling unicode-segmentation v1.3.0 [INFO] [stderr] Compiling regex-syntax v0.6.7 [INFO] [stderr] Compiling num-traits v0.2.8 [INFO] [stderr] Compiling backtrace v0.3.30 [INFO] [stderr] Compiling rustc-demangle v0.1.15 [INFO] [stderr] Compiling utf8-ranges v1.0.3 [INFO] [stderr] Compiling itoa v0.4.4 [INFO] [stderr] Compiling predicates-core v1.0.0 [INFO] [stderr] Compiling unicode-width v0.1.5 [INFO] [stderr] Compiling c2-chacha v0.2.3 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Compiling log v0.4.6 [INFO] [stderr] Compiling treeline v0.1.0 [INFO] [stderr] Compiling vec_map v0.8.1 [INFO] [stderr] Compiling ansi_term v0.11.0 [INFO] [stderr] Compiling normalize-line-endings v0.2.2 [INFO] [stderr] Compiling difference v2.0.0 [INFO] [stderr] Compiling predicates-tree v1.0.0 [INFO] [stderr] Compiling remove_dir_all v0.5.2 [INFO] [stderr] Compiling aho-corasick v0.7.3 [INFO] [stderr] Compiling atty v0.2.11 [INFO] [stderr] Compiling float-cmp v0.4.0 [INFO] [stderr] Compiling backtrace-sys v0.1.28 [INFO] [stderr] Compiling clap v2.33.0 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling rand_chacha v0.2.1 [INFO] [stderr] Compiling rand v0.7.2 [INFO] [stderr] Compiling synstructure v0.10.2 [INFO] [stderr] Compiling tempfile v3.1.0 [INFO] [stderr] Compiling serde_derive v1.0.92 [INFO] [stderr] Compiling structopt-derive v0.2.16 [INFO] [stderr] Compiling predicates v1.0.1 [INFO] [stderr] Compiling failure v0.1.5 [INFO] [stderr] Compiling exitfailure v0.5.1 [INFO] [stderr] Compiling structopt v0.2.16 [INFO] [stderr] Compiling serde_json v1.0.39 [INFO] [stderr] Compiling assert_cmd v0.11.1 [INFO] [stderr] Compiling tacoda_grrs v0.1.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:12:13 [INFO] [stdout] | [INFO] [stdout] 12 | writeln!(writer, "{}", line); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [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] 12 | let _ = writeln!(writer, "{}", line); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.36s [INFO] running `Command { std: "docker" "inspect" "7de2bf742e5854d914f6c0373d9742dfa726313061911845c0fc287a43f15461", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7de2bf742e5854d914f6c0373d9742dfa726313061911845c0fc287a43f15461", kill_on_drop: false }` [INFO] [stdout] 7de2bf742e5854d914f6c0373d9742dfa726313061911845c0fc287a43f15461 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f1a8be6a58a9b0f44008bd9296f7a698e1bee02ea405ed4d6e4decc84d0af908 [INFO] running `Command { std: "docker" "start" "-a" "f1a8be6a58a9b0f44008bd9296f7a698e1bee02ea405ed4d6e4decc84d0af908", kill_on_drop: false }` [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:12:13 [INFO] [stdout] | [INFO] [stdout] 12 | writeln!(writer, "{}", line); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [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] 12 | let _ = writeln!(writer, "{}", line); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling tacoda_grrs v0.1.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:12:13 [INFO] [stdout] | [INFO] [stdout] 12 | writeln!(writer, "{}", line); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [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] 12 | let _ = writeln!(writer, "{}", line); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `self` [INFO] [stdout] --> tests/cli.rs:5:15 [INFO] [stdout] | [INFO] [stdout] 5 | use std::io::{self, Write}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> tests/cli.rs:20:45 [INFO] [stdout] | [INFO] [stdout] 20 | fn find_content_in_file() -> Result<(), Box> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 20 | fn find_content_in_file() -> Result<(), Box> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> tests/cli.rs:8:42 [INFO] [stdout] | [INFO] [stdout] 8 | fn file_doesnt_exist() -> Result<(), Box> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 8 | fn file_doesnt_exist() -> Result<(), Box> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.86s [INFO] running `Command { std: "docker" "inspect" "f1a8be6a58a9b0f44008bd9296f7a698e1bee02ea405ed4d6e4decc84d0af908", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f1a8be6a58a9b0f44008bd9296f7a698e1bee02ea405ed4d6e4decc84d0af908", kill_on_drop: false }` [INFO] [stdout] f1a8be6a58a9b0f44008bd9296f7a698e1bee02ea405ed4d6e4decc84d0af908