[INFO] cloning repository https://github.com/wjlewis/little_scheme [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wjlewis/little_scheme" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwjlewis%2Flittle_scheme", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwjlewis%2Flittle_scheme'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] be5bdc48658ddf85626e38b87afe71f9097d7a54 [INFO] checking wjlewis/little_scheme against try#3fada14ee01d755dc8076e611f11bf65b28ffd21 for pr-154971 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwjlewis%2Flittle_scheme" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/wjlewis/little_scheme [INFO] finished tweaking git repo https://github.com/wjlewis/little_scheme [INFO] tweaked toml for git repo https://github.com/wjlewis/little_scheme written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/wjlewis/little_scheme on toolchain 3fada14ee01d755dc8076e611f11bf65b28ffd21 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3fada14ee01d755dc8076e611f11bf65b28ffd21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/wjlewis/little_scheme 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" "+3fada14ee01d755dc8076e611f11bf65b28ffd21" "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 [ERROR] error running command: no output for 300 seconds [INFO] checking wjlewis/little_scheme against try#3fada14ee01d755dc8076e611f11bf65b28ffd21 for pr-154971 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwjlewis%2Flittle_scheme" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/wjlewis/little_scheme [INFO] finished tweaking git repo https://github.com/wjlewis/little_scheme [INFO] tweaked toml for git repo https://github.com/wjlewis/little_scheme written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/wjlewis/little_scheme on toolchain 3fada14ee01d755dc8076e611f11bf65b28ffd21 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3fada14ee01d755dc8076e611f11bf65b28ffd21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/wjlewis/little_scheme 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" "+3fada14ee01d755dc8076e611f11bf65b28ffd21" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+3fada14ee01d755dc8076e611f11bf65b28ffd21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0f7a6fbb77d95d3ca4ca02f18f539b439bef66dac1858a7560ab249dda6a7b4e [INFO] running `Command { std: "docker" "start" "-a" "0f7a6fbb77d95d3ca4ca02f18f539b439bef66dac1858a7560ab249dda6a7b4e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0f7a6fbb77d95d3ca4ca02f18f539b439bef66dac1858a7560ab249dda6a7b4e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0f7a6fbb77d95d3ca4ca02f18f539b439bef66dac1858a7560ab249dda6a7b4e", kill_on_drop: false }` [INFO] [stdout] 0f7a6fbb77d95d3ca4ca02f18f539b439bef66dac1858a7560ab249dda6a7b4e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+3fada14ee01d755dc8076e611f11bf65b28ffd21" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 89ecd8b52cbc61bb5e691111304099f0eefd3e1259cdf588c4674db666b27253 [INFO] running `Command { std: "docker" "start" "-a" "89ecd8b52cbc61bb5e691111304099f0eefd3e1259cdf588c4674db666b27253", kill_on_drop: false }` [INFO] [stderr] Checking little_scheme v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: enum `SchemeObj` is never used [INFO] [stdout] --> src/data.rs:8:10 [INFO] [stdout] | [INFO] [stdout] 8 | pub enum SchemeObj { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Heap` is never constructed [INFO] [stdout] --> src/heap.rs:4:12 [INFO] [stdout] | [INFO] [stdout] 4 | pub struct Heap { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `alloc_bytes`, `alloc_block`, `collect`, `mark`, and `sweep` are never used [INFO] [stdout] --> src/heap.rs:25:12 [INFO] [stdout] | [INFO] [stdout] 24 | impl Heap { [INFO] [stdout] | --------- associated items in this implementation [INFO] [stdout] 25 | pub fn new(size: usize, get_roots: Box Vec>) -> Heap { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 45 | fn alloc_bytes(&mut self, n: usize, attempt_collect: bool) -> usize { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 81 | fn alloc_block(&mut self, header: &mut Header, n: usize) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 97 | fn collect(&mut self) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 102 | fn mark(&mut self) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 122 | fn sweep(&mut self) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `children` is never used [INFO] [stdout] --> src/heap.rs:159:8 [INFO] [stdout] | [INFO] [stdout] 159 | pub fn children(mem: &M, parent_addr: usize) -> Vec { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Mem` is never used [INFO] [stdout] --> src/memory.rs:9:11 [INFO] [stdout] | [INFO] [stdout] 9 | pub trait Mem { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `MemRead` is never used [INFO] [stdout] --> src/memory.rs:30:11 [INFO] [stdout] | [INFO] [stdout] 30 | pub trait MemRead { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `MemWrite` is never used [INFO] [stdout] --> src/memory.rs:37:11 [INFO] [stdout] | [INFO] [stdout] 37 | pub trait MemWrite { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Header` is never constructed [INFO] [stdout] --> src/memory/header.rs:15:12 [INFO] [stdout] | [INFO] [stdout] 15 | pub struct Header { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/memory/header.rs:24:12 [INFO] [stdout] | [INFO] [stdout] 22 | impl Header { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 23 | /// Creates a header for a freshly allocated block of memory. [INFO] [stdout] 24 | pub fn new(next: usize, size: usize, allocd: bool) -> Header { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `obj` [INFO] [stdout] --> src/memory/header.rs:97:42 [INFO] [stdout] | [INFO] [stdout] 97 | fn alloc(&mut self, obj: &T) -> usize { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_obj` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s [INFO] running `Command { std: "docker" "inspect" "89ecd8b52cbc61bb5e691111304099f0eefd3e1259cdf588c4674db666b27253", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "89ecd8b52cbc61bb5e691111304099f0eefd3e1259cdf588c4674db666b27253", kill_on_drop: false }` [INFO] [stdout] 89ecd8b52cbc61bb5e691111304099f0eefd3e1259cdf588c4674db666b27253