[INFO] fetching crate drcov2lcov 0.2.1...
[INFO] checking drcov2lcov-0.2.1 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate drcov2lcov 0.2.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate drcov2lcov 0.2.1 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 drcov2lcov 0.2.1
[INFO] finished tweaking crates.io crate drcov2lcov 0.2.1
[INFO] tweaked toml for crates.io crate drcov2lcov 0.2.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate drcov2lcov 0.2.1 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ouroboros_macro v0.18.0
[INFO] [stderr]   Downloaded memmap2 v0.9.0
[INFO] [stderr]   Downloaded ouroboros v0.18.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 28322de8a2c4f5e362be07c2cd37368e6763f85e949cff39d05464bf5f915b3c
[INFO] running `Command { std: "docker" "start" "-a" "28322de8a2c4f5e362be07c2cd37368e6763f85e949cff39d05464bf5f915b3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "28322de8a2c4f5e362be07c2cd37368e6763f85e949cff39d05464bf5f915b3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28322de8a2c4f5e362be07c2cd37368e6763f85e949cff39d05464bf5f915b3c", kill_on_drop: false }`
[INFO] [stdout] 28322de8a2c4f5e362be07c2cd37368e6763f85e949cff39d05464bf5f915b3c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 512e1925d75d9bcbec762ccf690781bc6c770c766054225f0636217356f78e27
[INFO] running `Command { std: "docker" "start" "-a" "512e1925d75d9bcbec762ccf690781bc6c770c766054225f0636217356f78e27", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
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[INFO] [stderr]    Compiling crc32fast v1.3.2
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[INFO] [stderr]     Checking ouroboros v0.18.0
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[INFO] [stderr]     Checking drcov2lcov v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `version` is never read
[INFO] [stdout]    --> src/drcov.rs:188:9
[INFO] [stdout]     |
[INFO] [stdout] 187 | pub struct Modules {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] 188 |     pub version: u32,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Modules` 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` and `flavor` are never read
[INFO] [stdout]    --> src/drcov.rs:269:9
[INFO] [stdout]     |
[INFO] [stdout] 268 | pub struct Drcov {
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] 269 |     pub version: u32,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 270 |     pub flavor: String,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Drcov` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `version` is never read
[INFO] [stdout]    --> src/drcov.rs:188:9
[INFO] [stdout]     |
[INFO] [stdout] 187 | pub struct Modules {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] 188 |     pub version: u32,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Modules` 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` and `flavor` are never read
[INFO] [stdout]    --> src/drcov.rs:269:9
[INFO] [stdout]     |
[INFO] [stdout] 268 | pub struct Drcov {
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] 269 |     pub version: u32,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 270 |     pub flavor: String,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Drcov` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.19s
[INFO] running `Command { std: "docker" "inspect" "512e1925d75d9bcbec762ccf690781bc6c770c766054225f0636217356f78e27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "512e1925d75d9bcbec762ccf690781bc6c770c766054225f0636217356f78e27", kill_on_drop: false }`
[INFO] [stdout] 512e1925d75d9bcbec762ccf690781bc6c770c766054225f0636217356f78e27