[INFO] updating cached repository steffenhaug/freelist [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/steffenhaug/freelist [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/steffenhaug/freelist" "work/ex/beta-1.38-1/sources/1.37.0/gh/steffenhaug/freelist"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/steffenhaug/freelist'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/steffenhaug/freelist" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/steffenhaug/freelist"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/steffenhaug/freelist'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] ee8b8506532e043996fb4c8fdd7f15e72f942fef [INFO] sha for GitHub repo steffenhaug/freelist: ee8b8506532e043996fb4c8fdd7f15e72f942fef [INFO] validating manifest of steffenhaug/freelist on toolchain 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of steffenhaug/freelist on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing steffenhaug/freelist [INFO] finished frobbing steffenhaug/freelist [INFO] frobbed toml for steffenhaug/freelist written to work/ex/beta-1.38-1/sources/1.37.0/gh/steffenhaug/freelist/Cargo.toml [INFO] started frobbing steffenhaug/freelist [INFO] finished frobbing steffenhaug/freelist [INFO] frobbed toml for steffenhaug/freelist written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/steffenhaug/freelist/Cargo.toml [INFO] crate steffenhaug/freelist already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing steffenhaug/freelist against 1.37.0 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/steffenhaug/freelist:/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=warn" "-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" "+1.37.0" "build" "--frozen"` [INFO] [stdout] a665669072d4df7340bdcc0d8fbfe70e7bb05f6c7317bc4a292620e2504e57b7 [INFO] running `"docker" "start" "-a" "a665669072d4df7340bdcc0d8fbfe70e7bb05f6c7317bc4a292620e2504e57b7"` [INFO] [stderr] Compiling allocators v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused imports: `RefMut`, `Ref` [INFO] [stderr] --> src/pile.rs:2:26 [INFO] [stderr] | [INFO] [stderr] 2 | use std::cell::{RefCell, Ref, RefMut}; [INFO] [stderr] | ^^^ ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::fmt` [INFO] [stderr] --> src/pile.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::fmt; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `data` [INFO] [stderr] --> src/slotmap.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | data: Vec>, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `slots` [INFO] [stderr] --> src/slotmap.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | slots: Vec, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `free_data` [INFO] [stderr] --> src/slotmap.rs:12:5 [INFO] [stderr] | [INFO] [stderr] 12 | free_data: Option, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `free_slots` [INFO] [stderr] --> src/slotmap.rs:13:5 [INFO] [stderr] | [INFO] [stderr] 13 | free_slots: Option [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `t` [INFO] [stderr] --> src/main.rs:11:9 [INFO] [stderr] | [INFO] [stderr] 11 | let t = fl.remove(x); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_t` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `u` [INFO] [stderr] --> src/main.rs:17:9 [INFO] [stderr] | [INFO] [stderr] 17 | let u = fl.insert(42); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_u` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v` [INFO] [stderr] --> src/main.rs:18:9 [INFO] [stderr] | [INFO] [stderr] 18 | let v = fl.insert(69); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_v` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.18s [INFO] running `"docker" "inspect" "a665669072d4df7340bdcc0d8fbfe70e7bb05f6c7317bc4a292620e2504e57b7"` [INFO] running `"docker" "rm" "-f" "a665669072d4df7340bdcc0d8fbfe70e7bb05f6c7317bc4a292620e2504e57b7"` [INFO] [stdout] a665669072d4df7340bdcc0d8fbfe70e7bb05f6c7317bc4a292620e2504e57b7 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/steffenhaug/freelist:/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=warn" "-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" "+1.37.0" "test" "--frozen" "--no-run"` [INFO] [stdout] 135cd28fbafab3fbe443ced8d45d6100f93d500e149a5843e8533e2a3be61fcf [INFO] running `"docker" "start" "-a" "135cd28fbafab3fbe443ced8d45d6100f93d500e149a5843e8533e2a3be61fcf"` [INFO] [stderr] Compiling failure_derive v0.1.4 [INFO] [stderr] Compiling pest_derive v1.0.8 [INFO] [stderr] Compiling itertools-num v0.1.3 [INFO] [stderr] Compiling csv-core v0.1.5 [INFO] [stderr] Compiling serde_derive v1.0.83 [INFO] [stderr] Compiling criterion-stats v0.3.0 [INFO] [stderr] Compiling regex v1.1.0 [INFO] [stderr] Compiling csv v1.0.5 [INFO] [stderr] Compiling failure v0.1.4 [INFO] [stderr] Compiling criterion-plot v0.2.7 [INFO] [stderr] Compiling handlebars v1.0.5 [INFO] [stderr] Compiling criterion v0.2.7 [INFO] [stderr] Compiling allocators v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused imports: `RefMut`, `Ref` [INFO] [stderr] --> src/pile.rs:2:26 [INFO] [stderr] | [INFO] [stderr] 2 | use std::cell::{RefCell, Ref, RefMut}; [INFO] [stderr] | ^^^ ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::fmt` [INFO] [stderr] --> src/pile.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::fmt; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `t` [INFO] [stderr] --> src/main.rs:11:9 [INFO] [stderr] | [INFO] [stderr] 11 | let t = fl.remove(x); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_t` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `u` [INFO] [stderr] --> src/main.rs:17:9 [INFO] [stderr] | [INFO] [stderr] 17 | let u = fl.insert(42); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_u` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v` [INFO] [stderr] --> src/main.rs:18:9 [INFO] [stderr] | [INFO] [stderr] 18 | let v = fl.insert(69); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_v` [INFO] [stderr] [INFO] [stderr] warning: field is never used: `data` [INFO] [stderr] --> src/slotmap.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | data: Vec>, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `slots` [INFO] [stderr] --> src/slotmap.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | slots: Vec, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `free_data` [INFO] [stderr] --> src/slotmap.rs:12:5 [INFO] [stderr] | [INFO] [stderr] 12 | free_data: Option, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `free_slots` [INFO] [stderr] --> src/slotmap.rs:13:5 [INFO] [stderr] | [INFO] [stderr] 13 | free_slots: Option [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 00s [INFO] running `"docker" "inspect" "135cd28fbafab3fbe443ced8d45d6100f93d500e149a5843e8533e2a3be61fcf"` [INFO] running `"docker" "rm" "-f" "135cd28fbafab3fbe443ced8d45d6100f93d500e149a5843e8533e2a3be61fcf"` [INFO] [stdout] 135cd28fbafab3fbe443ced8d45d6100f93d500e149a5843e8533e2a3be61fcf [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/steffenhaug/freelist:/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=warn" "-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" "+1.37.0" "test" "--frozen"` [INFO] [stdout] 548ffd7292f9c55ea779f21cbcb6ce5911bb781e01f27cb7c7e9de5fd65e7fe2 [INFO] running `"docker" "start" "-a" "548ffd7292f9c55ea779f21cbcb6ce5911bb781e01f27cb7c7e9de5fd65e7fe2"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.10s [INFO] [stderr] Running /opt/crater/target/debug/deps/allocators-45a41a25315db900 [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/executable-f8bc3fe497332ff1 [INFO] [stdout] running 0 tests [INFO] [stderr] Doc-tests allocators [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [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 [INFO] [stdout] [INFO] running `"docker" "inspect" "548ffd7292f9c55ea779f21cbcb6ce5911bb781e01f27cb7c7e9de5fd65e7fe2"` [INFO] running `"docker" "rm" "-f" "548ffd7292f9c55ea779f21cbcb6ce5911bb781e01f27cb7c7e9de5fd65e7fe2"` [INFO] [stdout] 548ffd7292f9c55ea779f21cbcb6ce5911bb781e01f27cb7c7e9de5fd65e7fe2