[INFO] fetching crate zb 0.1.0...
[INFO] checking zb-0.1.0 against master#9610dfe5a9a731ced1ea4923ecbd0c57fe367898 for beta-170-4
[INFO] extracting crate zb 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate zb 0.1.0 on toolchain 9610dfe5a9a731ced1ea4923ecbd0c57fe367898
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate zb 0.1.0
[INFO] finished tweaking crates.io crate zb 0.1.0
[INFO] tweaked toml for crates.io crate zb 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate zb 0.1.0 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" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded twoway v0.2.2
[INFO] [stderr]   Downloaded unchecked-index v0.2.2
[INFO] [stderr]   Downloaded clap_lex v0.1.1
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[INFO] [stderr]   Downloaded zstd v0.10.0+zstd.1.5.2
[INFO] [stderr]   Downloaded bytestring v1.0.0
[INFO] [stderr]   Downloaded cookie v0.16.0
[INFO] [stderr]   Downloaded local-channel v0.1.2
[INFO] [stderr]   Downloaded local-waker v0.1.2
[INFO] [stderr]   Downloaded zstd-safe v4.1.4+zstd.1.5.2
[INFO] [stderr]   Downloaded entities v1.0.1
[INFO] [stderr]   Downloaded firestorm v0.5.0
[INFO] [stderr]   Downloaded actix-web v4.0.1
[INFO] [stderr]   Downloaded actix-http v3.0.4
[INFO] [stderr]   Downloaded clap v3.1.12
[INFO] [stderr]   Downloaded actix-web-codegen v4.0.0
[INFO] [stderr]   Downloaded serde_indextree v0.2.0
[INFO] [stderr]   Downloaded indextree v4.4.0
[INFO] [stderr]   Downloaded typed-arena v1.7.0
[INFO] [stderr]   Downloaded comrak v0.10.1
[INFO] [stderr]   Downloaded orgize v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e0d50320aa060b53b2f962a0c5c8b35c5d5f3f1fc7f71993237f6e7c8c17a072
[INFO] running `Command { std: "docker" "start" "-a" "e0d50320aa060b53b2f962a0c5c8b35c5d5f3f1fc7f71993237f6e7c8c17a072", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0d50320aa060b53b2f962a0c5c8b35c5d5f3f1fc7f71993237f6e7c8c17a072", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0d50320aa060b53b2f962a0c5c8b35c5d5f3f1fc7f71993237f6e7c8c17a072", kill_on_drop: false }`
[INFO] [stdout] e0d50320aa060b53b2f962a0c5c8b35c5d5f3f1fc7f71993237f6e7c8c17a072
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd14962c30955bceced2b278f7b6ee241df69d4f558737b93b82ca69b41ff579
[INFO] running `Command { std: "docker" "start" "-a" "cd14962c30955bceced2b278f7b6ee241df69d4f558737b93b82ca69b41ff579", kill_on_drop: false }`
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[INFO] [stderr]     Checking pin-project-lite v0.2.8
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[INFO] [stderr]     Checking zip v0.6.2
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[INFO] [stderr]     Checking zb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:75:21
[INFO] [stdout]    |
[INFO] [stdout] 75 |                     file.read_to_string(&mut contents);
[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] 75 |                     let _ = file.read_to_string(&mut contents);
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:96:21
[INFO] [stdout]    |
[INFO] [stdout] 96 |                     file.read_to_end(&mut contents);
[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] 96 |                     let _ = file.read_to_end(&mut contents);
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:75:21
[INFO] [stdout]    |
[INFO] [stdout] 75 |                     file.read_to_string(&mut contents);
[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] 75 |                     let _ = file.read_to_string(&mut contents);
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:96:21
[INFO] [stdout]    |
[INFO] [stdout] 96 |                     file.read_to_end(&mut contents);
[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] 96 |                     let _ = file.read_to_end(&mut contents);
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.64s
[INFO] running `Command { std: "docker" "inspect" "cd14962c30955bceced2b278f7b6ee241df69d4f558737b93b82ca69b41ff579", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd14962c30955bceced2b278f7b6ee241df69d4f558737b93b82ca69b41ff579", kill_on_drop: false }`
[INFO] [stdout] cd14962c30955bceced2b278f7b6ee241df69d4f558737b93b82ca69b41ff579
