[INFO] crate free-list 0.2.0 is already in cache [INFO] extracting crate free-list 0.2.0 into work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/reg/free-list/0.2.0 [INFO] extracting crate free-list 0.2.0 into work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/reg/free-list/0.2.0 [INFO] validating manifest of free-list-0.2.0 on toolchain master#efe2f32a6b8217425f361ec7c206910c611c03ee [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of free-list-0.2.0 on toolchain try#78b0bd8441ef961f6475e3d47fe3bca38cb83432 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing free-list-0.2.0 [INFO] finished frobbing free-list-0.2.0 [INFO] frobbed toml for free-list-0.2.0 written to work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/reg/free-list/0.2.0/Cargo.toml [INFO] started frobbing free-list-0.2.0 [INFO] finished frobbing free-list-0.2.0 [INFO] frobbed toml for free-list-0.2.0 written to work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/reg/free-list/0.2.0/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking free-list-0.2.0 against try#78b0bd8441ef961f6475e3d47fe3bca38cb83432 for pr-60039 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039/worker-5/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/reg/free-list/0.2.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 3cff1232c3becae325035a106a995948f4b59f8a5b2f1f9924ee9a75c6467b4d [INFO] running `"docker" "start" "-a" "3cff1232c3becae325035a106a995948f4b59f8a5b2f1f9924ee9a75c6467b4d"` [INFO] [stderr] Checking free-list v0.2.0 (/opt/crater/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/list/mod.rs:35:13 [INFO] [stderr] | [INFO] [stderr] 35 | let mut node_pool = Vec::with_capacity(initial_capacity); [INFO] [stderr] | ----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `empty` [INFO] [stderr] --> src/list/mod.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 17 | pub fn empty(next: FreeListId) -> FreeListNode { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a` [INFO] [stderr] --> src/list/tests.rs:38:10 [INFO] [stderr] | [INFO] [stderr] 38 | let (a, b, c) = (list.allocate(0), list.allocate(0), list.allocate(0)); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_a` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `c` [INFO] [stderr] --> src/list/tests.rs:38:16 [INFO] [stderr] | [INFO] [stderr] 38 | let (a, b, c) = (list.allocate(0), list.allocate(0), list.allocate(0)); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_c` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/list/mod.rs:35:13 [INFO] [stderr] | [INFO] [stderr] 35 | let mut node_pool = Vec::with_capacity(initial_capacity); [INFO] [stderr] | ----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `empty` [INFO] [stderr] --> src/list/mod.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 17 | pub fn empty(next: FreeListId) -> FreeListNode { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `Rng` [INFO] [stderr] --> benches/locality.rs:9:12 [INFO] [stderr] | [INFO] [stderr] 9 | use rand::{Rng, XorShiftRng}; [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> benches/locality.rs:64:13 [INFO] [stderr] | [INFO] [stderr] 64 | for i in 0..NON_CONTIGUOUS_BLOCK_SIZE { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.76s [INFO] running `"docker" "inspect" "3cff1232c3becae325035a106a995948f4b59f8a5b2f1f9924ee9a75c6467b4d"` [INFO] running `"docker" "rm" "-f" "3cff1232c3becae325035a106a995948f4b59f8a5b2f1f9924ee9a75c6467b4d"` [INFO] [stdout] 3cff1232c3becae325035a106a995948f4b59f8a5b2f1f9924ee9a75c6467b4d