[INFO] fetching crate lockspot 0.0.5...
[INFO] checking lockspot-0.0.5 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate lockspot 0.0.5 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate lockspot 0.0.5 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lockspot 0.0.5
[INFO] finished tweaking crates.io crate lockspot 0.0.5
[INFO] tweaked toml for crates.io crate lockspot 0.0.5 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate lockspot 0.0.5 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ryu v0.2.8
[INFO] [stderr]   Downloaded utf8-ranges v1.0.3
[INFO] [stderr]   Downloaded serde_json v1.0.39
[INFO] [stderr]   Downloaded serde_derive v1.0.92
[INFO] [stderr]   Downloaded serde v1.0.92
[INFO] [stderr]   Downloaded regex v1.1.7
[INFO] [stderr]   Downloaded regex-syntax v0.6.7
[INFO] [stderr]   Downloaded libc v0.2.58
[INFO] [stderr]   Downloaded syn v0.15.35
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c73ad26e8ed45ee84622d47c627ca265fe5d9f183e90e8cd99345c327a67a0f
[INFO] running `Command { std: "docker" "start" "-a" "1c73ad26e8ed45ee84622d47c627ca265fe5d9f183e90e8cd99345c327a67a0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c73ad26e8ed45ee84622d47c627ca265fe5d9f183e90e8cd99345c327a67a0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c73ad26e8ed45ee84622d47c627ca265fe5d9f183e90e8cd99345c327a67a0f", kill_on_drop: false }`
[INFO] [stdout] 1c73ad26e8ed45ee84622d47c627ca265fe5d9f183e90e8cd99345c327a67a0f
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 45ec8ccf0e2405128358a4ea8e849021c3720931d41c07f764c03c5157ae2beb
[INFO] running `Command { std: "docker" "start" "-a" "45ec8ccf0e2405128358a4ea8e849021c3720931d41c07f764c03c5157ae2beb", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.35
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling serde v1.0.92
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling ryu v0.2.8
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]    Compiling regex v1.1.7
[INFO] [stderr]     Checking utf8-ranges v1.0.3
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking regex-syntax v0.6.7
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking aho-corasick v0.7.3
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling serde_derive v1.0.92
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking lockspot v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `version`, `integrity`, `bundled`, `optional`, and `requires` are never read
[INFO] [stdout]   --> src/lib.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct Dependency {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 24 |     version: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 25 |     integrity: String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 26 |     #[serde(default = "default_bool")]
[INFO] [stdout] 27 |     bundled: bool,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     optional: bool,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 32 |     #[serde(default = "default_requires")]
[INFO] [stdout] 33 |     requires: HashMap<String, String>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Dependency` 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 `version`, `integrity`, `bundled`, `optional`, and `requires` are never read
[INFO] [stdout]   --> src/lib.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct Dependency {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 24 |     version: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 25 |     integrity: String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 26 |     #[serde(default = "default_bool")]
[INFO] [stdout] 27 |     bundled: bool,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     optional: bool,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 32 |     #[serde(default = "default_requires")]
[INFO] [stdout] 33 |     requires: HashMap<String, String>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Dependency` 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.43s
[INFO] running `Command { std: "docker" "inspect" "45ec8ccf0e2405128358a4ea8e849021c3720931d41c07f764c03c5157ae2beb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45ec8ccf0e2405128358a4ea8e849021c3720931d41c07f764c03c5157ae2beb", kill_on_drop: false }`
[INFO] [stdout] 45ec8ccf0e2405128358a4ea8e849021c3720931d41c07f764c03c5157ae2beb