[INFO] fetching crate spacework 0.0.3...
[INFO] checking spacework-0.0.3 against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] extracting crate spacework 0.0.3 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate spacework 0.0.3
[INFO] finished tweaking crates.io crate spacework 0.0.3
[INFO] tweaked toml for crates.io crate spacework 0.0.3 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate spacework 0.0.3 on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate spacework 0.0.3 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d6959b868d129d105b3af03214ef4fe03c989d206d810f963c21d45ccfd84e13
[INFO] running `Command { std: "docker" "start" "-a" "d6959b868d129d105b3af03214ef4fe03c989d206d810f963c21d45ccfd84e13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6959b868d129d105b3af03214ef4fe03c989d206d810f963c21d45ccfd84e13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6959b868d129d105b3af03214ef4fe03c989d206d810f963c21d45ccfd84e13", kill_on_drop: false }`
[INFO] [stdout] d6959b868d129d105b3af03214ef4fe03c989d206d810f963c21d45ccfd84e13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ea40fde6ef6d84ea816f798aae77e017192085b9c6e4fd09abfd497fa2dba0f
[INFO] running `Command { std: "docker" "start" "-a" "7ea40fde6ef6d84ea816f798aae77e017192085b9c6e4fd09abfd497fa2dba0f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.4
[INFO] [stderr]     Checking clap v3.0.0-beta.4
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking spacework v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `compiler`, `output`, `standard`, `optimization_levels`, and `warnings` are never read
[INFO] [stdout]   --> src/config/languagefile.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Language {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub compiler: String,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 18 |     pub output: String,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 19 |     pub standard: Option<String>,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub optimization_levels: Vec<String>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 23 |     pub warnings: Vec<String>,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Language` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `run` is never read
[INFO] [stdout]   --> src/config/languagefile.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct Cmd {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] 34 |     pub build: String,
[INFO] [stdout] 35 |     pub run: String,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Cmd` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `read` is never used
[INFO] [stdout]   --> src/spacework/history.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl History {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn read(&self) -> Result<String, Box<dyn Error>> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `compiler`, `output`, `standard`, `optimization_levels`, and `warnings` are never read
[INFO] [stdout]   --> src/config/languagefile.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Language {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub compiler: String,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 18 |     pub output: String,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 19 |     pub standard: Option<String>,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub optimization_levels: Vec<String>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 23 |     pub warnings: Vec<String>,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Language` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `run` is never read
[INFO] [stdout]   --> src/config/languagefile.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct Cmd {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] 34 |     pub build: String,
[INFO] [stdout] 35 |     pub run: String,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Cmd` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `read` is never used
[INFO] [stdout]   --> src/spacework/history.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl History {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn read(&self) -> Result<String, Box<dyn Error>> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.92s
[INFO] running `Command { std: "docker" "inspect" "7ea40fde6ef6d84ea816f798aae77e017192085b9c6e4fd09abfd497fa2dba0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ea40fde6ef6d84ea816f798aae77e017192085b9c6e4fd09abfd497fa2dba0f", kill_on_drop: false }`
[INFO] [stdout] 7ea40fde6ef6d84ea816f798aae77e017192085b9c6e4fd09abfd497fa2dba0f