[INFO] cloning repository https://github.com/nevakrien/no-heap-lisp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nevakrien/no-heap-lisp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnevakrien%2Fno-heap-lisp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnevakrien%2Fno-heap-lisp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 849b35998c7045ee6d6fd7038ad0e866a586443e
[INFO] checking nevakrien/no-heap-lisp against try#028201683a76a5cd349729c6819c46607119c4e8 for pr-144157
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnevakrien%2Fno-heap-lisp" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/nevakrien/no-heap-lisp
[INFO] finished tweaking git repo https://github.com/nevakrien/no-heap-lisp
[INFO] tweaked toml for git repo https://github.com/nevakrien/no-heap-lisp written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nevakrien/no-heap-lisp on toolchain 028201683a76a5cd349729c6819c46607119c4e8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+028201683a76a5cd349729c6819c46607119c4e8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/nevakrien/no-heap-lisp 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" "+028201683a76a5cd349729c6819c46607119c4e8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+028201683a76a5cd349729c6819c46607119c4e8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 198a6c64885b0be8394e5ecea966819eb9f3099fd7a57bf4cbd8ec78319d184c
[INFO] running `Command { std: "docker" "start" "-a" "198a6c64885b0be8394e5ecea966819eb9f3099fd7a57bf4cbd8ec78319d184c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "198a6c64885b0be8394e5ecea966819eb9f3099fd7a57bf4cbd8ec78319d184c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "198a6c64885b0be8394e5ecea966819eb9f3099fd7a57bf4cbd8ec78319d184c", kill_on_drop: false }`
[INFO] [stdout] 198a6c64885b0be8394e5ecea966819eb9f3099fd7a57bf4cbd8ec78319d184c
[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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+028201683a76a5cd349729c6819c46607119c4e8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52af86580a0708cd68fea86a979569870539d8b75aa685d9f01bb77d8668dcfd
[INFO] running `Command { std: "docker" "start" "-a" "52af86580a0708cd68fea86a979569870539d8b75aa685d9f01bb77d8668dcfd", kill_on_drop: false }`
[INFO] [stderr]     Checking no-heap-lisp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::stack::take_last_mut`
[INFO] [stdout]  --> src/value.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::stack::take_last_mut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::stack::take_last_mut`
[INFO] [stdout]  --> src/value.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::stack::take_last_mut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "52af86580a0708cd68fea86a979569870539d8b75aa685d9f01bb77d8668dcfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52af86580a0708cd68fea86a979569870539d8b75aa685d9f01bb77d8668dcfd", kill_on_drop: false }`
[INFO] [stdout] 52af86580a0708cd68fea86a979569870539d8b75aa685d9f01bb77d8668dcfd