[INFO] fetching crate ctplt 0.0.1...
[INFO] checking ctplt-0.0.1 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate ctplt 0.0.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate ctplt 0.0.1 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 ctplt 0.0.1
[INFO] finished tweaking crates.io crate ctplt 0.0.1
[INFO] tweaked toml for crates.io crate ctplt 0.0.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate ctplt 0.0.1 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]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 9a900fcc191c8e8c628abc9be7e392c9077d7882ac69398761f729ffe66de038
[INFO] running `Command { std: "docker" "start" "-a" "9a900fcc191c8e8c628abc9be7e392c9077d7882ac69398761f729ffe66de038", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a900fcc191c8e8c628abc9be7e392c9077d7882ac69398761f729ffe66de038", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a900fcc191c8e8c628abc9be7e392c9077d7882ac69398761f729ffe66de038", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] bb33d664e1790b6c12a9e81ff0fdb0ffc27686133391a305c2cd9cc6c2e241a8
[INFO] running `Command { std: "docker" "start" "-a" "bb33d664e1790b6c12a9e81ff0fdb0ffc27686133391a305c2cd9cc6c2e241a8", kill_on_drop: false }`
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[INFO] [stderr]     Checking ctplt v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `LinkTargetPtr` is never constructed
[INFO] [stdout]   --> src/target.rs:37:19
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub(super) struct LinkTargetPtr(pub Arc<dyn LinkTarget>);
[INFO] [stdout]    |                   ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `StaticLinker` is never used
[INFO] [stdout]   --> src/toolchain/compiler.rs:38:11
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub trait StaticLinker {
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LinkTargetPtr` is never constructed
[INFO] [stdout]   --> src/target.rs:37:19
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub(super) struct LinkTargetPtr(pub Arc<dyn LinkTarget>);
[INFO] [stdout]    |                   ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `StaticLinker` is never used
[INFO] [stdout]   --> src/toolchain/compiler.rs:38:11
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub trait StaticLinker {
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 08s
[INFO] running `Command { std: "docker" "inspect" "bb33d664e1790b6c12a9e81ff0fdb0ffc27686133391a305c2cd9cc6c2e241a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb33d664e1790b6c12a9e81ff0fdb0ffc27686133391a305c2cd9cc6c2e241a8", kill_on_drop: false }`
[INFO] [stdout] bb33d664e1790b6c12a9e81ff0fdb0ffc27686133391a305c2cd9cc6c2e241a8