[INFO] fetching crate espresso 0.0.1...
[INFO] checking espresso-0.0.1 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate espresso 0.0.1 into /workspace/builds/worker-102/source
[INFO] validating manifest of crates.io crate espresso 0.0.1 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate espresso 0.0.1
[INFO] finished tweaking crates.io crate espresso 0.0.1
[INFO] tweaked toml for crates.io crate espresso 0.0.1 written to /workspace/builds/worker-102/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-102/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-102/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0918d949e621306d2e88479a7414c0eabd9c00ec894df80a90395dd7b4fa8365
[INFO] running `Command { std: "docker" "start" "-a" "0918d949e621306d2e88479a7414c0eabd9c00ec894df80a90395dd7b4fa8365", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0918d949e621306d2e88479a7414c0eabd9c00ec894df80a90395dd7b4fa8365", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0918d949e621306d2e88479a7414c0eabd9c00ec894df80a90395dd7b4fa8365", kill_on_drop: false }`
[INFO] [stdout] 0918d949e621306d2e88479a7414c0eabd9c00ec894df80a90395dd7b4fa8365
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-102/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-102/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 576b60a3b5c0f1432a68f10af6a6d59e7d6bc82712122d620672d6cf7bd07ff6
[INFO] running `Command { std: "docker" "start" "-a" "576b60a3b5c0f1432a68f10af6a6d59e7d6bc82712122d620672d6cf7bd07ff6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling anyhow v1.0.44
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]     Checking thiserror v1.0.29
[INFO] [stderr]     Checking serde v1.0.130
[INFO] [stderr]     Checking ron v0.5.1
[INFO] [stderr]     Checking espresso v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::convert::TryInto`
[INFO] [stdout]  --> src/buf_ext.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/class.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `RefCell`, `Ref`
[INFO] [stdout]  --> src/class.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::cell::{RefCell, Ref};
[INFO] [stdout]   |                 ^^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ValueTooLarge`
[INFO] [stdout]   --> src/buf_ext.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     ValueTooLarge,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `access_flags`
[INFO] [stdout]    --> src/class.rs:443:5
[INFO] [stdout]     |
[INFO] [stdout] 443 |     access_flags: AccessFlags,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name_index`
[INFO] [stdout]    --> src/class.rs:444:5
[INFO] [stdout]     |
[INFO] [stdout] 444 |     name_index: u16,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `descriptor_index`
[INFO] [stdout]    --> src/class.rs:445:5
[INFO] [stdout]     |
[INFO] [stdout] 445 |     descriptor_index: u16,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::TryInto`
[INFO] [stdout]  --> src/buf_ext.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/class.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `RefCell`, `Ref`
[INFO] [stdout]  --> src/class.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::cell::{RefCell, Ref};
[INFO] [stdout]   |                 ^^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ValueTooLarge`
[INFO] [stdout]   --> src/buf_ext.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     ValueTooLarge,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `access_flags`
[INFO] [stdout]    --> src/class.rs:443:5
[INFO] [stdout]     |
[INFO] [stdout] 443 |     access_flags: AccessFlags,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name_index`
[INFO] [stdout]    --> src/class.rs:444:5
[INFO] [stdout]     |
[INFO] [stdout] 444 |     name_index: u16,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `descriptor_index`
[INFO] [stdout]    --> src/class.rs:445:5
[INFO] [stdout]     |
[INFO] [stdout] 445 |     descriptor_index: u16,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.24s
[INFO] running `Command { std: "docker" "inspect" "576b60a3b5c0f1432a68f10af6a6d59e7d6bc82712122d620672d6cf7bd07ff6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "576b60a3b5c0f1432a68f10af6a6d59e7d6bc82712122d620672d6cf7bd07ff6", kill_on_drop: false }`
[INFO] [stdout] 576b60a3b5c0f1432a68f10af6a6d59e7d6bc82712122d620672d6cf7bd07ff6