[INFO] cloning repository https://github.com/kvinwang/gramine-bug-report-mem-test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kvinwang/gramine-bug-report-mem-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkvinwang%2Fgramine-bug-report-mem-test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkvinwang%2Fgramine-bug-report-mem-test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 83c1033527f5e55b168f036cd1b06cf4a959d214
[INFO] checking kvinwang/gramine-bug-report-mem-test against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkvinwang%2Fgramine-bug-report-mem-test" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kvinwang/gramine-bug-report-mem-test on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kvinwang/gramine-bug-report-mem-test
[INFO] finished tweaking git repo https://github.com/kvinwang/gramine-bug-report-mem-test
[INFO] tweaked toml for git repo https://github.com/kvinwang/gramine-bug-report-mem-test written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kvinwang/gramine-bug-report-mem-test 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mimalloc v0.1.34
[INFO] [stderr]   Downloaded libmimalloc-sys v0.1.30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 032f536c343597f6d04dd507091a5f426a62c9dcf1c72cfc4ac02e0a1edca672
[INFO] running `Command { std: "docker" "start" "-a" "032f536c343597f6d04dd507091a5f426a62c9dcf1c72cfc4ac02e0a1edca672", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "032f536c343597f6d04dd507091a5f426a62c9dcf1c72cfc4ac02e0a1edca672", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "032f536c343597f6d04dd507091a5f426a62c9dcf1c72cfc4ac02e0a1edca672", kill_on_drop: false }`
[INFO] [stdout] 032f536c343597f6d04dd507091a5f426a62c9dcf1c72cfc4ac02e0a1edca672
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d04c0a03fad83daeae90d43d5c88eef2f699a5a132abe739e76de5cd080eab25
[INFO] running `Command { std: "docker" "start" "-a" "d04c0a03fad83daeae90d43d5c88eef2f699a5a132abe739e76de5cd080eab25", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling libmimalloc-sys v0.1.30
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking mimalloc v0.1.34
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking mem-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `current_used` is never read
[INFO] [stdout]   --> src/allocator.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Stats {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 12 |     /// The current heap usage of the allocator.
[INFO] [stdout] 13 |     pub current_used: usize,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Stats` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `current_used` is never read
[INFO] [stdout]   --> src/allocator.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Stats {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 12 |     /// The current heap usage of the allocator.
[INFO] [stdout] 13 |     pub current_used: usize,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Stats` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.79s
[INFO] running `Command { std: "docker" "inspect" "d04c0a03fad83daeae90d43d5c88eef2f699a5a132abe739e76de5cd080eab25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d04c0a03fad83daeae90d43d5c88eef2f699a5a132abe739e76de5cd080eab25", kill_on_drop: false }`
[INFO] [stdout] d04c0a03fad83daeae90d43d5c88eef2f699a5a132abe739e76de5cd080eab25
[INFO] checking kvinwang/gramine-bug-report-mem-test against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkvinwang%2Fgramine-bug-report-mem-test" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kvinwang/gramine-bug-report-mem-test on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kvinwang/gramine-bug-report-mem-test
[INFO] finished tweaking git repo https://github.com/kvinwang/gramine-bug-report-mem-test
[INFO] tweaked toml for git repo https://github.com/kvinwang/gramine-bug-report-mem-test written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/kvinwang/gramine-bug-report-mem-test 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f26b028fced9606c9e36dd0a5265bca75ad58081db9c8bb25bbb88b2238397de
[INFO] running `Command { std: "docker" "start" "-a" "f26b028fced9606c9e36dd0a5265bca75ad58081db9c8bb25bbb88b2238397de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f26b028fced9606c9e36dd0a5265bca75ad58081db9c8bb25bbb88b2238397de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f26b028fced9606c9e36dd0a5265bca75ad58081db9c8bb25bbb88b2238397de", kill_on_drop: false }`
[INFO] [stdout] f26b028fced9606c9e36dd0a5265bca75ad58081db9c8bb25bbb88b2238397de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92a70f027e185fcff0026fbb366fe51d5bddd3ae31d19253dc4f91a6c950478d
[INFO] running `Command { std: "docker" "start" "-a" "92a70f027e185fcff0026fbb366fe51d5bddd3ae31d19253dc4f91a6c950478d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling libmimalloc-sys v0.1.30
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking mimalloc v0.1.34
[INFO] [stderr]     Checking mem-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `current_used` is never read
[INFO] [stdout]   --> src/allocator.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Stats {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 12 |     /// The current heap usage of the allocator.
[INFO] [stdout] 13 |     pub current_used: usize,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Stats` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `current_used` is never read
[INFO] [stdout]   --> src/allocator.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Stats {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 12 |     /// The current heap usage of the allocator.
[INFO] [stdout] 13 |     pub current_used: usize,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Stats` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.93s
[INFO] running `Command { std: "docker" "inspect" "92a70f027e185fcff0026fbb366fe51d5bddd3ae31d19253dc4f91a6c950478d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92a70f027e185fcff0026fbb366fe51d5bddd3ae31d19253dc4f91a6c950478d", kill_on_drop: false }`
[INFO] [stdout] 92a70f027e185fcff0026fbb366fe51d5bddd3ae31d19253dc4f91a6c950478d