[INFO] fetching crate mkdosfs 0.2.5...
[INFO] testing mkdosfs-0.2.5 against 1.90.0 for beta-1.91-3
[INFO] extracting crate mkdosfs 0.2.5 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate mkdosfs 0.2.5
[INFO] finished tweaking crates.io crate mkdosfs 0.2.5
[INFO] tweaked toml for crates.io crate mkdosfs 0.2.5 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mkdosfs 0.2.5 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mkdosfs 0.2.5 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num_threads v0.1.6
[INFO] [stderr]   Downloaded time-macros v0.2.4
[INFO] [stderr]   Downloaded time v0.3.13
[INFO] [stderr]   Downloaded libc v0.2.129
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5fd0b4e6183a0e9aeb609226ed7ab0d84ae8b43f98c5f4b0e66ee4412b13dc3b
[INFO] running `Command { std: "docker" "start" "-a" "5fd0b4e6183a0e9aeb609226ed7ab0d84ae8b43f98c5f4b0e66ee4412b13dc3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5fd0b4e6183a0e9aeb609226ed7ab0d84ae8b43f98c5f4b0e66ee4412b13dc3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fd0b4e6183a0e9aeb609226ed7ab0d84ae8b43f98c5f4b0e66ee4412b13dc3b", kill_on_drop: false }`
[INFO] [stdout] 5fd0b4e6183a0e9aeb609226ed7ab0d84ae8b43f98c5f4b0e66ee4412b13dc3b
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad3b2803f57d676a9dff335ba8ccce625da8aaee5cc33d0dbce77751ba95727f
[INFO] running `Command { std: "docker" "start" "-a" "ad3b2803f57d676a9dff335ba8ccce625da8aaee5cc33d0dbce77751ba95727f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling once_cell v1.13.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling libc v0.2.129
[INFO] [stderr]    Compiling encoding_rs v0.8.31
[INFO] [stderr]    Compiling time-macros v0.2.4
[INFO] [stderr]    Compiling num_threads v0.1.6
[INFO] [stderr]    Compiling smallvec v1.9.0
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling regex v1.6.0
[INFO] [stderr]    Compiling sharded-slab v0.1.4
[INFO] [stderr]    Compiling bytes v1.2.1
[INFO] [stderr]    Compiling tracing-core v0.1.29
[INFO] [stderr]    Compiling thread_local v1.1.4
[INFO] [stderr]    Compiling tracing-log v0.1.3
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling matchers v0.1.0
[INFO] [stderr]    Compiling time v0.3.13
[INFO] [stderr]    Compiling tracing-attributes v0.1.22
[INFO] [stderr]    Compiling thiserror-impl v1.0.32
[INFO] [stderr]    Compiling thiserror v1.0.32
[INFO] [stderr]    Compiling tracing v0.1.36
[INFO] [stderr]    Compiling tracing-subscriber v0.3.15
[INFO] [stderr]    Compiling mkdosfs v0.2.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:616:13
[INFO] [stdout]     |
[INFO] [stdout] 616 |         for mut ent in self.entries.iter_mut() {
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.54s
[INFO] running `Command { std: "docker" "inspect" "ad3b2803f57d676a9dff335ba8ccce625da8aaee5cc33d0dbce77751ba95727f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad3b2803f57d676a9dff335ba8ccce625da8aaee5cc33d0dbce77751ba95727f", kill_on_drop: false }`
[INFO] [stdout] ad3b2803f57d676a9dff335ba8ccce625da8aaee5cc33d0dbce77751ba95727f
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] adfb7a8b673ffb5d853e4d777937e03cb7c436ffd8442e0136c8913b15781d97
[INFO] running `Command { std: "docker" "start" "-a" "adfb7a8b673ffb5d853e4d777937e03cb7c436ffd8442e0136c8913b15781d97", kill_on_drop: false }`
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:616:13
[INFO] [stdout]     |
[INFO] [stdout] 616 |         for mut ent in self.entries.iter_mut() {
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling mkdosfs v0.2.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:616:13
[INFO] [stdout]     |
[INFO] [stdout] 616 |         for mut ent in self.entries.iter_mut() {
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "adfb7a8b673ffb5d853e4d777937e03cb7c436ffd8442e0136c8913b15781d97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adfb7a8b673ffb5d853e4d777937e03cb7c436ffd8442e0136c8913b15781d97", kill_on_drop: false }`
[INFO] [stdout] adfb7a8b673ffb5d853e4d777937e03cb7c436ffd8442e0136c8913b15781d97
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f15ead063864e57411cd6ed33040524407d74b8f888e5c8a99166a71633562d9
[INFO] running `Command { std: "docker" "start" "-a" "f15ead063864e57411cd6ed33040524407d74b8f888e5c8a99166a71633562d9", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stdout] 
[INFO] [stderr]    --> src/lib.rs:616:13
[INFO] [stdout] running 0 tests
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr] 616 |         for mut ent in self.entries.iter_mut() {
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]     |             ----^^^
[INFO] [stdout] 
[INFO] [stderr]     |             |
[INFO] [stdout] 
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stdout] running 0 tests
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: `mkdosfs` (lib) generated 1 warning (run `cargo fix --lib -p mkdosfs` to apply 1 suggestion)
[INFO] [stderr] warning: `mkdosfs` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mkdosfs-dcfa4b099e68e1f9)
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/mkdosfs-c6e4de970cb95027)
[INFO] running `Command { std: "docker" "inspect" "f15ead063864e57411cd6ed33040524407d74b8f888e5c8a99166a71633562d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f15ead063864e57411cd6ed33040524407d74b8f888e5c8a99166a71633562d9", kill_on_drop: false }`
[INFO] [stdout] f15ead063864e57411cd6ed33040524407d74b8f888e5c8a99166a71633562d9