[INFO] crate docopt 1.1.1 is already in cache
[INFO] checking docopt-1.1.1 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate docopt 1.1.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate docopt 1.1.1 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate docopt 1.1.1
[INFO] finished tweaking crates.io crate docopt 1.1.1
[INFO] tweaked toml for crates.io crate docopt 1.1.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate docopt 1.1.1 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a4733b5df3f68b75058c2801b5eca5bfac1e43d6e6ccd35b53bbfb0920e6cc2
[INFO] running `Command { std: "docker" "start" "-a" "0a4733b5df3f68b75058c2801b5eca5bfac1e43d6e6ccd35b53bbfb0920e6cc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a4733b5df3f68b75058c2801b5eca5bfac1e43d6e6ccd35b53bbfb0920e6cc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a4733b5df3f68b75058c2801b5eca5bfac1e43d6e6ccd35b53bbfb0920e6cc2", kill_on_drop: false }`
[INFO] [stdout] 0a4733b5df3f68b75058c2801b5eca5bfac1e43d6e6ccd35b53bbfb0920e6cc2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce9f3ce501d50df8631fb3c3b08a727d39745adc5a749f74bb764d5f6fe59f8c
[INFO] running `Command { std: "docker" "start" "-a" "ce9f3ce501d50df8631fb3c3b08a727d39745adc5a749f74bb764d5f6fe59f8c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.63
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking docopt v1.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `arg_command` is never read
[INFO] [stdout]   --> examples/optional_command.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | struct Args {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] 25 |     arg_command: Command,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Args` 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 `0` is never read
[INFO] [stdout]   --> examples/optional_command.rs:63:13
[INFO] [stdout]    |
[INFO] [stdout] 63 |     Unknown(String),
[INFO] [stdout]    |     ------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[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] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 63 |     Unknown(()),
[INFO] [stdout]    |             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `arg_source`, `arg_dest`, `arg_dir`, `flag_archive`, and `flag_verbose` are never read
[INFO] [stdout]   --> examples/verbose_multiple.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct Args {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 22 |     arg_source: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 23 |     arg_dest: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 24 |     arg_dir: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 25 |     flag_archive: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 26 |     flag_verbose: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Args` 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: fields `arg_x`, `arg_y`, and `cmd_mine` are never read
[INFO] [stdout]   --> examples/decode.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | struct Args {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 28 |     arg_x: Option<isize>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 29 |     arg_y: Option<isize>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 30 |     cmd_ship: bool,
[INFO] [stdout] 31 |     cmd_mine: bool,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Args` 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: fields `arg_source`, `arg_dest`, `arg_dir`, and `flag_archive` are never read
[INFO] [stdout]   --> examples/cp.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct Args {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 15 |     arg_source: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 16 |     arg_dest: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 17 |     arg_dir: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 18 |     flag_archive: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Args` 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `arg_command`, `arg_args`, `flag_list`, and `flag_verbose` are never read
[INFO] [stdout]   --> examples/cargo.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct Args {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 33 |     arg_command: Option<Command>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 34 |     arg_args: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 35 |     flag_list: bool,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 36 |     flag_verbose: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Args` 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `arg_file`, `cmd_info`, `cmd_update`, and `arg_value` are never read
[INFO] [stdout]   --> src/test/mod.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |     struct Args {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 86 |         arg_file: String,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 87 |         cmd_info: bool,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 88 |         cmd_update: bool,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 89 |         arg_timestamp: u64,
[INFO] [stdout] 90 |         arg_value: f64,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Args` 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.17s
[INFO] running `Command { std: "docker" "inspect" "ce9f3ce501d50df8631fb3c3b08a727d39745adc5a749f74bb764d5f6fe59f8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce9f3ce501d50df8631fb3c3b08a727d39745adc5a749f74bb764d5f6fe59f8c", kill_on_drop: false }`
[INFO] [stdout] ce9f3ce501d50df8631fb3c3b08a727d39745adc5a749f74bb764d5f6fe59f8c