[INFO] fetching crate persistence 0.0.6...
[INFO] building persistence-0.0.6 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate persistence 0.0.6 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate persistence 0.0.6
[INFO] finished tweaking crates.io crate persistence 0.0.6
[INFO] tweaked toml for crates.io crate persistence 0.0.6 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate persistence 0.0.6 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 23 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 66b3a1f4fa0b3262a4909c0adb41c3cd4180003ba4e0c3c0374653d685f82125
[INFO] running `Command { std: "docker" "start" "-a" "66b3a1f4fa0b3262a4909c0adb41c3cd4180003ba4e0c3c0374653d685f82125", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66b3a1f4fa0b3262a4909c0adb41c3cd4180003ba4e0c3c0374653d685f82125", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66b3a1f4fa0b3262a4909c0adb41c3cd4180003ba4e0c3c0374653d685f82125", kill_on_drop: false }`
[INFO] [stdout] 66b3a1f4fa0b3262a4909c0adb41c3cd4180003ba4e0c3c0374653d685f82125
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4635f27088abb9bfc63232784b889db8bb86df6673ace78a54f9b199a6a90a4
[INFO] running `Command { std: "docker" "start" "-a" "f4635f27088abb9bfc63232784b889db8bb86df6673ace78a54f9b199a6a90a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling persistence v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:258:9
[INFO] [stdout]     |
[INFO] [stdout] 258 |     let mut mm = unsafe { MmapMut::map_mut(&file)? };
[INFO] [stdout]     |         ----^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `file` and `mm` are never read
[INFO] [stdout]    --> src/lib.rs:146:3
[INFO] [stdout]     |
[INFO] [stdout] 144 | pub struct MmapedVec<T>
[INFO] [stdout]     |            --------- fields in this struct
[INFO] [stdout] 145 | {
[INFO] [stdout] 146 |   file: File,
[INFO] [stdout]     |   ^^^^
[INFO] [stdout] 147 |   mm: MmapMut,
[INFO] [stdout]     |   ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "f4635f27088abb9bfc63232784b889db8bb86df6673ace78a54f9b199a6a90a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4635f27088abb9bfc63232784b889db8bb86df6673ace78a54f9b199a6a90a4", kill_on_drop: false }`
[INFO] [stdout] f4635f27088abb9bfc63232784b889db8bb86df6673ace78a54f9b199a6a90a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c15b145ff1d1579e771a7cb5fb1fb2a577c3286bce5a71c699b7ec391061a20d
[INFO] running `Command { std: "docker" "start" "-a" "c15b145ff1d1579e771a7cb5fb1fb2a577c3286bce5a71c699b7ec391061a20d", kill_on_drop: false }`
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:258:9
[INFO] [stdout]     |
[INFO] [stdout] 258 |     let mut mm = unsafe { MmapMut::map_mut(&file)? };
[INFO] [stdout]     |         ----^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `file` and `mm` are never read
[INFO] [stdout]    --> src/lib.rs:146:3
[INFO] [stdout]     |
[INFO] [stdout] 144 | pub struct MmapedVec<T>
[INFO] [stdout]     |            --------- fields in this struct
[INFO] [stdout] 145 | {
[INFO] [stdout] 146 |   file: File,
[INFO] [stdout]     |   ^^^^
[INFO] [stdout] 147 |   mm: MmapMut,
[INFO] [stdout]     |   ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tempfile v3.23.0
[INFO] [stderr]    Compiling persistence v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:400:20
[INFO] [stdout]     |
[INFO] [stdout] 400 |     assert!(mv_err.description().ends_with("Magic bytes mismatch."));
[INFO] [stdout]     |                    ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:456:20
[INFO] [stdout]     |
[INFO] [stdout] 456 |     assert!(mv_err.description().ends_with("Endianness-marker invalid."));
[INFO] [stdout]     |                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:482:20
[INFO] [stdout]     |
[INFO] [stdout] 482 |     assert!(mv_err.description().ends_with("Wrong endianness."));
[INFO] [stdout]     |                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:418:20
[INFO] [stdout]     |
[INFO] [stdout] 418 |     assert!(mv_err.description().contains("shorter than the expected header size"));
[INFO] [stdout]     |                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:436:20
[INFO] [stdout]     |
[INFO] [stdout] 436 |     assert!(mv_err.description().contains("not an integer multiple of the size of the data type"));
[INFO] [stdout]     |                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:258:9
[INFO] [stdout]     |
[INFO] [stdout] 258 |     let mut mm = unsafe { MmapMut::map_mut(&file)? };
[INFO] [stdout]     |         ----^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `file` and `mm` are never read
[INFO] [stdout]    --> src/lib.rs:146:3
[INFO] [stdout]     |
[INFO] [stdout] 144 | pub struct MmapedVec<T>
[INFO] [stdout]     |            --------- fields in this struct
[INFO] [stdout] 145 | {
[INFO] [stdout] 146 |   file: File,
[INFO] [stdout]     |   ^^^^
[INFO] [stdout] 147 |   mm: MmapMut,
[INFO] [stdout]     |   ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.51s
[INFO] running `Command { std: "docker" "inspect" "c15b145ff1d1579e771a7cb5fb1fb2a577c3286bce5a71c699b7ec391061a20d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c15b145ff1d1579e771a7cb5fb1fb2a577c3286bce5a71c699b7ec391061a20d", kill_on_drop: false }`
[INFO] [stdout] c15b145ff1d1579e771a7cb5fb1fb2a577c3286bce5a71c699b7ec391061a20d