[INFO] cloning repository https://github.com/seasox/bs-poc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/seasox/bs-poc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseasox%2Fbs-poc", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b8d2bec6da03f726af27aab52c99de20d19e2647
[INFO] checking seasox/bs-poc against master#c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3 for pr-141352
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseasox%2Fbs-poc" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/seasox/bs-poc on toolchain c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3
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[INFO] started tweaking git repo https://github.com/seasox/bs-poc
[INFO] finished tweaking git repo https://github.com/seasox/bs-poc
[INFO] tweaked toml for git repo https://github.com/seasox/bs-poc written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/seasox/bs-poc already has a lockfile, it will not be regenerated
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stderr]    Compiling bs_poc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `time_access` and `flush` are never used
[INFO] [stdout]   --> src/memory/timer.rs:9:15
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub trait MemoryTimer {
[INFO] [stdout]    |           ----------- methods in this trait
[INFO] [stdout] 9  |     unsafe fn time_access(&self, a: *const u8) -> u64;
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout] 10 |     unsafe fn flush(&self, a: *const u8);
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `time_access` and `flush` are never used
[INFO] [stdout]   --> src/memory/timer.rs:9:15
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub trait MemoryTimer {
[INFO] [stdout]    |           ----------- methods in this trait
[INFO] [stdout] 9  |     unsafe fn time_access(&self, a: *const u8) -> u64;
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout] 10 |     unsafe fn flush(&self, a: *const u8);
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PAGE_COUNT` is never used
[INFO] [stdout]   --> src/bin/bait_alloc/main.rs:45:7
[INFO] [stdout]    |
[INFO] [stdout] 45 | const PAGE_COUNT: usize = 1000;
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RELEASE_COUNT` is never used
[INFO] [stdout]   --> src/bin/bait_alloc/main.rs:46:7
[INFO] [stdout]    |
[INFO] [stdout] 46 | const RELEASE_COUNT: usize = 500;
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `prog` is never used
[INFO] [stdout]   --> src/bin/bait_alloc/main.rs:50:4
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn prog() -> Option<String> {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `signal` is never used
[INFO] [stdout]   --> src/bin/bait_alloc/main.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn signal(sig: &str, pid: u32) -> anyhow::Result<()> {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PAGE_COUNT` is never used
[INFO] [stdout]   --> src/bin/bait_alloc/main.rs:45:7
[INFO] [stdout]    |
[INFO] [stdout] 45 | const PAGE_COUNT: usize = 1000;
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RELEASE_COUNT` is never used
[INFO] [stdout]   --> src/bin/bait_alloc/main.rs:46:7
[INFO] [stdout]    |
[INFO] [stdout] 46 | const RELEASE_COUNT: usize = 500;
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `prog` is never used
[INFO] [stdout]   --> src/bin/bait_alloc/main.rs:50:4
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn prog() -> Option<String> {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `signal` is never used
[INFO] [stdout]   --> src/bin/bait_alloc/main.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn signal(sig: &str, pid: u32) -> anyhow::Result<()> {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 56.60s
[INFO] running `Command { std: "docker" "inspect" "c57439c507b1713797abff4cc453fd9660e348319b75a80c0886f9934fa055d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c57439c507b1713797abff4cc453fd9660e348319b75a80c0886f9934fa055d1", kill_on_drop: false }`
[INFO] [stdout] c57439c507b1713797abff4cc453fd9660e348319b75a80c0886f9934fa055d1