[INFO] fetching crate composable-allocators 0.3.5...
[INFO] checking composable-allocators-0.3.5 against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] extracting crate composable-allocators 0.3.5 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate composable-allocators 0.3.5
[INFO] finished tweaking crates.io crate composable-allocators 0.3.5
[INFO] tweaked toml for crates.io crate composable-allocators 0.3.5 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate composable-allocators 0.3.5 on toolchain 93086cfebfccb79083c59d0d3b2052944bba643c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate composable-allocators 0.3.5 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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8fb9014657d73ec4a4dc49fbdcedb573ed784f970db7f9192270815e41a5fd94
[INFO] running `Command { std: "docker" "start" "-a" "8fb9014657d73ec4a4dc49fbdcedb573ed784f970db7f9192270815e41a5fd94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8fb9014657d73ec4a4dc49fbdcedb573ed784f970db7f9192270815e41a5fd94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fb9014657d73ec4a4dc49fbdcedb573ed784f970db7f9192270815e41a5fd94", kill_on_drop: false }`
[INFO] [stdout] 8fb9014657d73ec4a4dc49fbdcedb573ed784f970db7f9192270815e41a5fd94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c42a6c8aea8ef5ab2877d3634c51824be752981f4c54b0234688759a2a4caf35
[INFO] running `Command { std: "docker" "start" "-a" "c42a6c8aea8ef5ab2877d3634c51824be752981f4c54b0234688759a2a4caf35", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling toml_datetime v0.6.11
[INFO] [stderr]    Compiling winnow v0.5.40
[INFO] [stderr]     Checking const-default v1.0.0
[INFO] [stderr]    Compiling cc v1.2.49
[INFO] [stderr]    Compiling indexmap v2.12.1
[INFO] [stderr]     Checking panicking v0.5.0
[INFO] [stderr]     Checking sync-no-std v0.1.4
[INFO] [stderr]    Compiling errno-sys v0.2.0
[INFO] [stderr]     Checking errno-no-std v0.2.2
[INFO] [stderr]     Checking print-no-std v0.3.0
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling const-default-derive v0.2.0
[INFO] [stderr]     Checking composable-allocators v0.3.5 (/opt/rustwide/workdir)
[INFO] [stdout] error: struct `FixedLimit` is never constructed
[INFO] [stdout]   --> src/freelist.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub struct FixedLimit {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `composable-allocators` (lib test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: struct `FixedLimit` is never constructed
[INFO] [stdout]   --> src/freelist.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub struct FixedLimit {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `composable-allocators` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "c42a6c8aea8ef5ab2877d3634c51824be752981f4c54b0234688759a2a4caf35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c42a6c8aea8ef5ab2877d3634c51824be752981f4c54b0234688759a2a4caf35", kill_on_drop: false }`
[INFO] [stdout] c42a6c8aea8ef5ab2877d3634c51824be752981f4c54b0234688759a2a4caf35
