[INFO] fetching crate ribosome 0.1.2...
[INFO] checking ribosome-0.1.2 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate ribosome 0.1.2 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate ribosome 0.1.2 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 ribosome 0.1.2
[INFO] finished tweaking crates.io crate ribosome 0.1.2
[INFO] tweaked toml for crates.io crate ribosome 0.1.2 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate ribosome 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.9
[INFO] [stderr]   Downloaded hermit-abi v0.1.8
[INFO] [stderr]   Downloaded quote v1.0.3
[INFO] [stderr]   Downloaded flate2 v0.2.20
[INFO] [stderr]   Downloaded syn v1.0.16
[INFO] [stderr]   Downloaded cesu8 v1.1.0
[INFO] [stderr]   Downloaded libc v0.2.67
[INFO] [stderr]   Downloaded hematite-nbt v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 6b627e16e7613e05621f6e3935ec44800b78e616ba92f1784ae848f576d9f9ac
[INFO] running `Command { std: "docker" "start" "-a" "6b627e16e7613e05621f6e3935ec44800b78e616ba92f1784ae848f576d9f9ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b627e16e7613e05621f6e3935ec44800b78e616ba92f1784ae848f576d9f9ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b627e16e7613e05621f6e3935ec44800b78e616ba92f1784ae848f576d9f9ac", kill_on_drop: false }`
[INFO] [stdout] 6b627e16e7613e05621f6e3935ec44800b78e616ba92f1784ae848f576d9f9ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] eb22b70c4b060b2bdfb1bd80683559ab56341f5d5ad353ecb00412e66a84b437
[INFO] running `Command { std: "docker" "start" "-a" "eb22b70c4b060b2bdfb1bd80683559ab56341f5d5ad353ecb00412e66a84b437", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]     Checking cesu8 v1.1.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking hematite-nbt v0.4.1
[INFO] [stderr]     Checking ribosome v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `data_version`
[INFO] [stdout]  --> src/structure.rs:6:2
[INFO] [stdout]   |
[INFO] [stdout] 6 |     data_version: i32,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `data_version`
[INFO] [stdout]  --> src/structure.rs:6:2
[INFO] [stdout]   |
[INFO] [stdout] 6 |     data_version: i32,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.49s
[INFO] running `Command { std: "docker" "inspect" "eb22b70c4b060b2bdfb1bd80683559ab56341f5d5ad353ecb00412e66a84b437", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb22b70c4b060b2bdfb1bd80683559ab56341f5d5ad353ecb00412e66a84b437", kill_on_drop: false }`
[INFO] [stdout] eb22b70c4b060b2bdfb1bd80683559ab56341f5d5ad353ecb00412e66a84b437