[INFO] fetching crate scirs2-sparse 0.1.0-rc.2...
[INFO] checking scirs2-sparse-0.1.0-rc.2 against master#3391c0133661be933c3ef24edf1867d71b9f206b for pr-149195-2
[INFO] extracting crate scirs2-sparse 0.1.0-rc.2 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate scirs2-sparse 0.1.0-rc.2
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate scirs2-sparse 0.1.0-rc.2
[INFO] tweaked toml for crates.io crate scirs2-sparse 0.1.0-rc.2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate scirs2-sparse 0.1.0-rc.2 on toolchain 3391c0133661be933c3ef24edf1867d71b9f206b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3391c0133661be933c3ef24edf1867d71b9f206b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate scirs2-sparse 0.1.0-rc.2 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" "+3391c0133661be933c3ef24edf1867d71b9f206b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
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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_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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+3391c0133661be933c3ef24edf1867d71b9f206b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c060f42f9bf540a75beaf999691888dec67316e1f4b5acb72fd623b78b691c9
[INFO] running `Command { std: "docker" "start" "-a" "4c060f42f9bf540a75beaf999691888dec67316e1f4b5acb72fd623b78b691c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c060f42f9bf540a75beaf999691888dec67316e1f4b5acb72fd623b78b691c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c060f42f9bf540a75beaf999691888dec67316e1f4b5acb72fd623b78b691c9", kill_on_drop: false }`
[INFO] [stdout] 4c060f42f9bf540a75beaf999691888dec67316e1f4b5acb72fd623b78b691c9
[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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+3391c0133661be933c3ef24edf1867d71b9f206b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bfdfbcf7ae10478fec1ec29bf1e0f5abcc2b5d425fafbb2b18c44da66fcd10b6
[INFO] running `Command { std: "docker" "start" "-a" "bfdfbcf7ae10478fec1ec29bf1e0f5abcc2b5d425fafbb2b18c44da66fcd10b6", kill_on_drop: false }`
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[INFO] [stdout] warning: value assigned to `total_removed` is never read
[INFO] [stdout]    --> src/adaptive_memory_compression/out_of_core.rs:170:17
[INFO] [stdout]     |
[INFO] [stdout] 170 |                 total_removed += metadata.len() as usize;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `total_removed` is never read
[INFO] [stdout]    --> src/adaptive_memory_compression/out_of_core.rs:170:17
[INFO] [stdout]     |
[INFO] [stdout] 170 |                 total_removed += metadata.len() as usize;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 32.71s
[INFO] running `Command { std: "docker" "inspect" "bfdfbcf7ae10478fec1ec29bf1e0f5abcc2b5d425fafbb2b18c44da66fcd10b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfdfbcf7ae10478fec1ec29bf1e0f5abcc2b5d425fafbb2b18c44da66fcd10b6", kill_on_drop: false }`
[INFO] [stdout] bfdfbcf7ae10478fec1ec29bf1e0f5abcc2b5d425fafbb2b18c44da66fcd10b6