[INFO] fetching crate cj_ascii 0.2.0... [INFO] checking cj_ascii-0.2.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate cj_ascii 0.2.0 into /workspace/builds/worker-7-tc1/source [INFO] validating manifest of crates.io crate cj_ascii 0.2.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "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-7-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 38 packages [INFO] [stderr] Adding object v0.32.2 (latest: v0.34.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 63050e31bc73b368c7f71fcf94b2da258ccb45af5c83605bd2ba1ea03d0eb966 [INFO] running `Command { std: "docker" "start" "-a" "63050e31bc73b368c7f71fcf94b2da258ccb45af5c83605bd2ba1ea03d0eb966", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "63050e31bc73b368c7f71fcf94b2da258ccb45af5c83605bd2ba1ea03d0eb966", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "63050e31bc73b368c7f71fcf94b2da258ccb45af5c83605bd2ba1ea03d0eb966", kill_on_drop: false }` [INFO] [stdout] 63050e31bc73b368c7f71fcf94b2da258ccb45af5c83605bd2ba1ea03d0eb966 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9cd02a87240a9fae536d80748ea01fd224e905461d3bec5cb5a937f05c0c9ee9 [INFO] running `Command { std: "docker" "start" "-a" "9cd02a87240a9fae536d80748ea01fd224e905461d3bec5cb5a937f05c0c9ee9", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.79 [INFO] [stderr] Checking futures-io v0.3.30 [INFO] [stderr] Checking futures-task v0.3.30 [INFO] [stderr] Checking futures-channel v0.3.30 [INFO] [stderr] Compiling serde v1.0.197 [INFO] [stderr] Compiling serde_json v1.0.115 [INFO] [stderr] Checking bytes v1.6.0 [INFO] [stderr] Compiling quote v1.0.35 [INFO] [stderr] Compiling syn v2.0.58 [INFO] [stderr] Compiling futures-macro v0.3.30 [INFO] [stderr] Compiling tokio-macros v2.2.0 [INFO] [stderr] Checking tokio v1.37.0 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking tokio-util v0.7.10 [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 17.30s [INFO] running `Command { std: "docker" "inspect" "9cd02a87240a9fae536d80748ea01fd224e905461d3bec5cb5a937f05c0c9ee9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9cd02a87240a9fae536d80748ea01fd224e905461d3bec5cb5a937f05c0c9ee9", kill_on_drop: false }` [INFO] [stdout] 9cd02a87240a9fae536d80748ea01fd224e905461d3bec5cb5a937f05c0c9ee9 [INFO] checking cj_ascii-0.2.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] extracting crate cj_ascii 0.2.0 into /workspace/builds/worker-7-tc2/source [INFO] validating manifest of crates.io crate cj_ascii 0.2.0 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "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-7-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6e9e1c801d1e240f206747d81ad86597492dde96829e9ad03d4fefc46d523161 [INFO] running `Command { std: "docker" "start" "-a" "6e9e1c801d1e240f206747d81ad86597492dde96829e9ad03d4fefc46d523161", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6e9e1c801d1e240f206747d81ad86597492dde96829e9ad03d4fefc46d523161", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6e9e1c801d1e240f206747d81ad86597492dde96829e9ad03d4fefc46d523161", kill_on_drop: false }` [INFO] [stdout] 6e9e1c801d1e240f206747d81ad86597492dde96829e9ad03d4fefc46d523161 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] adfa3834218183ec6dc357c8b44b333b005d2dea5dccf2d7b8f40824f4322a25 [INFO] running `Command { std: "docker" "start" "-a" "adfa3834218183ec6dc357c8b44b333b005d2dea5dccf2d7b8f40824f4322a25", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.79 [INFO] [stderr] Checking futures-io v0.3.30 [INFO] [stderr] Checking futures-task v0.3.30 [INFO] [stderr] Checking futures-channel v0.3.30 [INFO] [stderr] Compiling serde v1.0.197 [INFO] [stderr] Compiling serde_json v1.0.115 [INFO] [stderr] Checking bytes v1.6.0 [INFO] [stderr] Compiling quote v1.0.35 [INFO] [stderr] Compiling syn v2.0.58 [INFO] [stderr] Compiling futures-macro v0.3.30 [INFO] [stderr] Compiling tokio-macros v2.2.0 [INFO] [stderr] Checking tokio v1.37.0 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking tokio-util v0.7.10 [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 17.12s [INFO] running `Command { std: "docker" "inspect" "adfa3834218183ec6dc357c8b44b333b005d2dea5dccf2d7b8f40824f4322a25", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "adfa3834218183ec6dc357c8b44b333b005d2dea5dccf2d7b8f40824f4322a25", kill_on_drop: false }` [INFO] [stdout] adfa3834218183ec6dc357c8b44b333b005d2dea5dccf2d7b8f40824f4322a25