[INFO] fetching crate caravan 0.1.0...
[INFO] checking caravan-0.1.0 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate caravan 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate caravan 0.1.0
[INFO] finished tweaking crates.io crate caravan 0.1.0
[INFO] tweaked toml for crates.io crate caravan 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate caravan 0.1.0 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate caravan 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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bb01e953f3da69da1b85ff611f0f3eb6d5fb9b8e78667fb23bebfe213421ee6c
[INFO] running `Command { std: "docker" "start" "-a" "bb01e953f3da69da1b85ff611f0f3eb6d5fb9b8e78667fb23bebfe213421ee6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb01e953f3da69da1b85ff611f0f3eb6d5fb9b8e78667fb23bebfe213421ee6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb01e953f3da69da1b85ff611f0f3eb6d5fb9b8e78667fb23bebfe213421ee6c", kill_on_drop: false }`
[INFO] [stdout] bb01e953f3da69da1b85ff611f0f3eb6d5fb9b8e78667fb23bebfe213421ee6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85c5555d6513264d1c11ad530367f468000e29cd41b5a678c7aebd327ccd3e8a
[INFO] running `Command { std: "docker" "start" "-a" "85c5555d6513264d1c11ad530367f468000e29cd41b5a678c7aebd327ccd3e8a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.21
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.18
[INFO] [stderr]    Compiling derive_more v0.99.7
[INFO] [stderr]    Compiling structopt-derive v0.4.7
[INFO] [stderr]     Checking thiserror v1.0.18
[INFO] [stderr]     Checking structopt v0.3.14
[INFO] [stderr]     Checking caravan v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `debug`, `config_file`, and `prefix` are never read
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Options {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     debug: bool,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     config_file: Option<PathBuf>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     prefix: Option<PathBuf>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Options` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `package` is never read
[INFO] [stdout]   --> src/main.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Install {
[INFO] [stdout]    |     ------- field in this variant
[INFO] [stdout] ...
[INFO] [stdout] 44 |         package: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Command` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `debug`, `config_file`, and `prefix` are never read
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Options {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     debug: bool,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     config_file: Option<PathBuf>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     prefix: Option<PathBuf>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Options` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `package` is never read
[INFO] [stdout]   --> src/main.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Install {
[INFO] [stdout]    |     ------- field in this variant
[INFO] [stdout] ...
[INFO] [stdout] 44 |         package: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Command` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.02s
[INFO] running `Command { std: "docker" "inspect" "85c5555d6513264d1c11ad530367f468000e29cd41b5a678c7aebd327ccd3e8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85c5555d6513264d1c11ad530367f468000e29cd41b5a678c7aebd327ccd3e8a", kill_on_drop: false }`
[INFO] [stdout] 85c5555d6513264d1c11ad530367f468000e29cd41b5a678c7aebd327ccd3e8a