[INFO] fetching crate mkdosfs 0.2.5... [INFO] testing mkdosfs-0.2.5 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8 [INFO] extracting crate mkdosfs 0.2.5 into /workspace/builds/worker-4-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-4-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate mkdosfs 0.2.5 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [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-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a3e9f51bc3eeac8769dc7bb3161a29744d91a73061541cd092b3a39b00acb169 [INFO] running `Command { std: "docker" "start" "-a" "a3e9f51bc3eeac8769dc7bb3161a29744d91a73061541cd092b3a39b00acb169", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a3e9f51bc3eeac8769dc7bb3161a29744d91a73061541cd092b3a39b00acb169", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a3e9f51bc3eeac8769dc7bb3161a29744d91a73061541cd092b3a39b00acb169", kill_on_drop: false }` [INFO] [stdout] a3e9f51bc3eeac8769dc7bb3161a29744d91a73061541cd092b3a39b00acb169 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f06ea4e7afebf0aa69348ea5b3f2950376801e7ce37fe3dbb5da1e9b4bc3e62c [INFO] running `Command { std: "docker" "start" "-a" "f06ea4e7afebf0aa69348ea5b3f2950376801e7ce37fe3dbb5da1e9b4bc3e62c", kill_on_drop: false }` [INFO] [stderr] Compiling once_cell v1.13.0 [INFO] [stderr] Compiling regex-syntax v0.6.27 [INFO] [stderr] Compiling libc v0.2.129 [INFO] [stderr] Compiling time-macros v0.2.4 [INFO] [stderr] Compiling num_threads v0.1.6 [INFO] [stderr] Compiling bytes v1.2.1 [INFO] [stderr] Compiling thiserror-impl v1.0.32 [INFO] [stderr] Compiling tracing-core v0.1.29 [INFO] [stderr] Compiling thread_local v1.1.4 [INFO] [stderr] Compiling tracing v0.1.36 [INFO] [stderr] Compiling tracing-log v0.1.3 [INFO] [stderr] Compiling thiserror v1.0.32 [INFO] [stderr] Compiling time v0.3.13 [INFO] [stderr] Compiling regex-automata v0.1.10 [INFO] [stderr] Compiling regex v1.6.0 [INFO] [stderr] Compiling matchers v0.1.0 [INFO] [stderr] Compiling tracing-subscriber v0.3.15 [INFO] [stderr] Compiling mkdosfs v0.2.5 (/opt/rustwide/workdir) [INFO] [stdout] warning: value assigned to `source` is never read [INFO] [stdout] --> src/lib.rs:341:9 [INFO] [stdout] | [INFO] [stdout] 341 | source: std::io::Error, [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 `source` is never read [INFO] [stdout] --> src/lib.rs:346:9 [INFO] [stdout] | [INFO] [stdout] 346 | source: std::io::Error, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [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)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.71s [INFO] running `Command { std: "docker" "inspect" "f06ea4e7afebf0aa69348ea5b3f2950376801e7ce37fe3dbb5da1e9b4bc3e62c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f06ea4e7afebf0aa69348ea5b3f2950376801e7ce37fe3dbb5da1e9b4bc3e62c", kill_on_drop: false }` [INFO] [stdout] f06ea4e7afebf0aa69348ea5b3f2950376801e7ce37fe3dbb5da1e9b4bc3e62c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b286e7796263b764c3b9cb263e2ed4bbe4c9268f1e4e9db44f3dca276f8f5c80 [INFO] running `Command { std: "docker" "start" "-a" "b286e7796263b764c3b9cb263e2ed4bbe4c9268f1e4e9db44f3dca276f8f5c80", kill_on_drop: false }` [INFO] [stdout] warning: value assigned to `source` is never read [INFO] [stdout] --> src/lib.rs:341:9 [INFO] [stdout] | [INFO] [stdout] 341 | source: std::io::Error, [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 `source` is never read [INFO] [stdout] --> src/lib.rs:346:9 [INFO] [stdout] | [INFO] [stdout] 346 | source: std::io::Error, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [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)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `source` is never read [INFO] [stdout] --> src/lib.rs:341:9 [INFO] [stdout] | [INFO] [stdout] 341 | source: std::io::Error, [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 `source` is never read [INFO] [stdout] --> src/lib.rs:346:9 [INFO] [stdout] | [INFO] [stdout] 346 | source: std::io::Error, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [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)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.68s [INFO] running `Command { std: "docker" "inspect" "b286e7796263b764c3b9cb263e2ed4bbe4c9268f1e4e9db44f3dca276f8f5c80", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b286e7796263b764c3b9cb263e2ed4bbe4c9268f1e4e9db44f3dca276f8f5c80", kill_on_drop: false }` [INFO] [stdout] b286e7796263b764c3b9cb263e2ed4bbe4c9268f1e4e9db44f3dca276f8f5c80 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 73dcca06532de0d7107b16c6df57834f7567bd5bc500cd1b5342374274f69982 [INFO] running `Command { std: "docker" "start" "-a" "73dcca06532de0d7107b16c6df57834f7567bd5bc500cd1b5342374274f69982", kill_on_drop: false }` [INFO] [stderr] warning: value assigned to `source` is never read [INFO] [stderr] --> src/lib.rs:341:9 [INFO] [stderr] | [INFO] [stderr] 341 | source: std::io::Error, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `source` is never read [INFO] [stderr] --> src/lib.rs:346:9 [INFO] [stderr] | [INFO] [stderr] 346 | source: std::io::Error, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:616:13 [INFO] [stderr] | [INFO] [stderr] 616 | for mut ent in self.entries.iter_mut() { [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: `mkdosfs` (lib) generated 3 warnings (run `cargo fix --lib -p mkdosfs` to apply 1 suggestion) [INFO] [stderr] warning: `mkdosfs` (lib test) generated 3 warnings (3 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.40s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mkdosfs-4c33fd0fc5a1fecf) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/mkdosfs-3f2ea828320700f1) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "73dcca06532de0d7107b16c6df57834f7567bd5bc500cd1b5342374274f69982", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "73dcca06532de0d7107b16c6df57834f7567bd5bc500cd1b5342374274f69982", kill_on_drop: false }` [INFO] [stdout] 73dcca06532de0d7107b16c6df57834f7567bd5bc500cd1b5342374274f69982