[INFO] fetching crate pretty-table 0.1.3...
[INFO] checking pretty-table-0.1.3 against master#75530e9f72a1990ed2305e16fd51d02f47048f12 for pr-138676
[INFO] extracting crate pretty-table 0.1.3 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate pretty-table 0.1.3 on toolchain 75530e9f72a1990ed2305e16fd51d02f47048f12
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+75530e9f72a1990ed2305e16fd51d02f47048f12" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pretty-table 0.1.3
[INFO] finished tweaking crates.io crate pretty-table 0.1.3
[INFO] tweaked toml for crates.io crate pretty-table 0.1.3 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate pretty-table 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" "+75530e9f72a1990ed2305e16fd51d02f47048f12" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:6475c868a6d27846ca172efb246699580b64b57a5b3744ef73949e850a31b38a" "/opt/rustwide/cargo-home/bin/cargo" "+75530e9f72a1990ed2305e16fd51d02f47048f12" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fb611a60fd15780153a8d73124196c1ad2787b2f7df6765aec1fd5c7860e0440
[INFO] running `Command { std: "docker" "start" "-a" "fb611a60fd15780153a8d73124196c1ad2787b2f7df6765aec1fd5c7860e0440", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb611a60fd15780153a8d73124196c1ad2787b2f7df6765aec1fd5c7860e0440", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb611a60fd15780153a8d73124196c1ad2787b2f7df6765aec1fd5c7860e0440", kill_on_drop: false }`
[INFO] [stdout] fb611a60fd15780153a8d73124196c1ad2787b2f7df6765aec1fd5c7860e0440
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:6475c868a6d27846ca172efb246699580b64b57a5b3744ef73949e850a31b38a" "/opt/rustwide/cargo-home/bin/cargo" "+75530e9f72a1990ed2305e16fd51d02f47048f12" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c087e33fa90ae579a9ef06feb22fc9cc3721bd317b990fff4be3601a1ec5d6a7
[INFO] running `Command { std: "docker" "start" "-a" "c087e33fa90ae579a9ef06feb22fc9cc3721bd317b990fff4be3601a1ec5d6a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling thiserror v1.0.56
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]     Checking pretty-table v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/printing_table.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     write_table_to_file("table.txt", table_data);
[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] 17 |     let _ = write_table_to_file("table.txt", table_data);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.84s
[INFO] running `Command { std: "docker" "inspect" "c087e33fa90ae579a9ef06feb22fc9cc3721bd317b990fff4be3601a1ec5d6a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c087e33fa90ae579a9ef06feb22fc9cc3721bd317b990fff4be3601a1ec5d6a7", kill_on_drop: false }`
[INFO] [stdout] c087e33fa90ae579a9ef06feb22fc9cc3721bd317b990fff4be3601a1ec5d6a7