[INFO] fetching crate cj_ascii 0.2.0... [INFO] checking cj_ascii-0.2.0 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] extracting crate cj_ascii 0.2.0 into /workspace/builds/worker-2-tc1/source [INFO] validating manifest of crates.io crate cj_ascii 0.2.0 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate cj_ascii 0.2.0 [INFO] finished tweaking crates.io crate cj_ascii 0.2.0 [INFO] tweaked toml for crates.io crate cj_ascii 0.2.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 39 packages to latest compatible versions [INFO] [stderr] Adding addr2line v0.22.0 (latest: v0.24.1) [INFO] [stderr] Adding gimli v0.29.0 (latest: v0.31.0) [INFO] [stderr] Adding miniz_oxide v0.7.4 (latest: v0.8.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 391c0ed3be694ebf2ba7f741165946991bd76a80f7bb5b284752efe38e790fcb [INFO] running `Command { std: "docker" "start" "-a" "391c0ed3be694ebf2ba7f741165946991bd76a80f7bb5b284752efe38e790fcb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "391c0ed3be694ebf2ba7f741165946991bd76a80f7bb5b284752efe38e790fcb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "391c0ed3be694ebf2ba7f741165946991bd76a80f7bb5b284752efe38e790fcb", kill_on_drop: false }` [INFO] [stdout] 391c0ed3be694ebf2ba7f741165946991bd76a80f7bb5b284752efe38e790fcb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c9fe823fd3edf6482e7739c639485f81f109e24ee4e08ce5af0dd0545ecd9a36 [INFO] running `Command { std: "docker" "start" "-a" "c9fe823fd3edf6482e7739c639485f81f109e24ee4e08ce5af0dd0545ecd9a36", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.3.0 [INFO] [stderr] Checking futures-core v0.3.30 [INFO] [stderr] Checking futures-sink v0.3.30 [INFO] [stderr] Checking pin-project-lite v0.2.14 [INFO] [stderr] Checking futures-io v0.3.30 [INFO] [stderr] Checking futures-task v0.3.30 [INFO] [stderr] Checking pin-utils v0.1.0 [INFO] [stderr] Compiling syn v2.0.76 [INFO] [stderr] Compiling serde v1.0.209 [INFO] [stderr] Compiling serde_json v1.0.127 [INFO] [stderr] Checking ryu v1.0.18 [INFO] [stderr] Checking futures-channel v0.3.30 [INFO] [stderr] Checking bytes v1.7.1 [INFO] [stderr] Checking itoa v1.0.11 [INFO] [stderr] Compiling slab v0.4.9 [INFO] [stderr] Compiling futures-macro v0.3.30 [INFO] [stderr] Compiling tokio-macros v2.4.0 [INFO] [stderr] Checking tokio v1.39.3 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking tokio-util v0.7.11 [INFO] [stderr] Checking futures-executor v0.3.30 [INFO] [stderr] Checking futures v0.3.30 [INFO] [stderr] Checking cj_ascii v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Write` [INFO] [stdout] --> src/ascii_stream.rs:239:27 [INFO] [stdout] | [INFO] [stdout] 239 | use std::io::{Cursor, Write}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/ascii_stream.rs:268:9 [INFO] [stdout] | [INFO] [stdout] 268 | stream.read_bytes(&mut buf, 14); [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)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 268 | let _ = stream.read_bytes(&mut buf, 14); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/ascii_stream.rs:270:9 [INFO] [stdout] | [INFO] [stdout] 270 | stream.read_bytes(&mut buf, 15); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 270 | let _ = stream.read_bytes(&mut buf, 15); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/ascii_stream.rs:272:9 [INFO] [stdout] | [INFO] [stdout] 272 | stream.read_bytes(&mut buf, 13); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 272 | let _ = stream.read_bytes(&mut buf, 13); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.99s [INFO] running `Command { std: "docker" "inspect" "c9fe823fd3edf6482e7739c639485f81f109e24ee4e08ce5af0dd0545ecd9a36", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c9fe823fd3edf6482e7739c639485f81f109e24ee4e08ce5af0dd0545ecd9a36", kill_on_drop: false }` [INFO] [stdout] c9fe823fd3edf6482e7739c639485f81f109e24ee4e08ce5af0dd0545ecd9a36