[INFO] fetching crate copy_arena 0.1.1...
[INFO] testing copy_arena-0.1.1 against 1.54.0 for beta-1.55-1
[INFO] extracting crate copy_arena 0.1.1 into /workspace/builds/worker-55/source
[INFO] validating manifest of crates.io crate copy_arena 0.1.1 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate copy_arena 0.1.1
[INFO] finished tweaking crates.io crate copy_arena 0.1.1
[INFO] tweaked toml for crates.io crate copy_arena 0.1.1 written to /workspace/builds/worker-55/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b9896b5ac073fcc633a568b6b081fddbfafa910819afe0bf19ad15cb5f932cbe
[INFO] running `Command { std: "docker" "start" "-a" "b9896b5ac073fcc633a568b6b081fddbfafa910819afe0bf19ad15cb5f932cbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9896b5ac073fcc633a568b6b081fddbfafa910819afe0bf19ad15cb5f932cbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9896b5ac073fcc633a568b6b081fddbfafa910819afe0bf19ad15cb5f932cbe", kill_on_drop: false }`
[INFO] [stdout] b9896b5ac073fcc633a568b6b081fddbfafa910819afe0bf19ad15cb5f932cbe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 959f68084d98be54b72978cd3629e603024d6afbb9efe2839666f4d9349effad
[INFO] running `Command { std: "docker" "start" "-a" "959f68084d98be54b72978cd3629e603024d6afbb9efe2839666f4d9349effad", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling copy_arena v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `std::mem::min_align_of`: use `align_of` instead
[INFO] [stdout]    --> src/lib.rs:180:58
[INFO] [stdout]     |
[INFO] [stdout] 180 |         let memory = self.alloc_raw(mem::size_of::<T>(), mem::min_align_of::<T>());
[INFO] [stdout]     |                                                          ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::min_align_of`: use `align_of` instead
[INFO] [stdout]    --> src/lib.rs:196:49
[INFO] [stdout]     |
[INFO] [stdout] 196 |         let memory = self.alloc_raw(byte_count, mem::min_align_of::<T>());
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:203:13
[INFO] [stdout]     |
[INFO] [stdout] 203 |         let mut slice = self.alloc_slice_raw(elems.len());
[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] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:215:13
[INFO] [stdout]     |
[INFO] [stdout] 215 |         let mut slice = self.alloc_slice_raw(len);
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "959f68084d98be54b72978cd3629e603024d6afbb9efe2839666f4d9349effad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "959f68084d98be54b72978cd3629e603024d6afbb9efe2839666f4d9349effad", kill_on_drop: false }`
[INFO] [stdout] 959f68084d98be54b72978cd3629e603024d6afbb9efe2839666f4d9349effad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 14baac0e5ee8715b7a3b51104a74d24bf79b894654446d9959532c4044918f40
[INFO] running `Command { std: "docker" "start" "-a" "14baac0e5ee8715b7a3b51104a74d24bf79b894654446d9959532c4044918f40", kill_on_drop: false }`
[INFO] [stdout] warning: use of deprecated function `std::mem::min_align_of`: use `align_of` instead
[INFO] [stdout]    --> src/lib.rs:180:58
[INFO] [stdout]     |
[INFO] [stdout] 180 |         let memory = self.alloc_raw(mem::size_of::<T>(), mem::min_align_of::<T>());
[INFO] [stdout]     |                                                          ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::min_align_of`: use `align_of` instead
[INFO] [stdout]    --> src/lib.rs:196:49
[INFO] [stdout]     |
[INFO] [stdout] 196 |         let memory = self.alloc_raw(byte_count, mem::min_align_of::<T>());
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:203:13
[INFO] [stdout]     |
[INFO] [stdout] 203 |         let mut slice = self.alloc_slice_raw(elems.len());
[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] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:215:13
[INFO] [stdout]     |
[INFO] [stdout] 215 |         let mut slice = self.alloc_slice_raw(len);
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling copy_arena v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `std::mem::min_align_of`: use `align_of` instead
[INFO] [stdout]    --> src/lib.rs:180:58
[INFO] [stdout]     |
[INFO] [stdout] 180 |         let memory = self.alloc_raw(mem::size_of::<T>(), mem::min_align_of::<T>());
[INFO] [stdout]     |                                                          ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::min_align_of`: use `align_of` instead
[INFO] [stdout]    --> src/lib.rs:196:49
[INFO] [stdout]     |
[INFO] [stdout] 196 |         let memory = self.alloc_raw(byte_count, mem::min_align_of::<T>());
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:203:13
[INFO] [stdout]     |
[INFO] [stdout] 203 |         let mut slice = self.alloc_slice_raw(elems.len());
[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] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:215:13
[INFO] [stdout]     |
[INFO] [stdout] 215 |         let mut slice = self.alloc_slice_raw(len);
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "14baac0e5ee8715b7a3b51104a74d24bf79b894654446d9959532c4044918f40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14baac0e5ee8715b7a3b51104a74d24bf79b894654446d9959532c4044918f40", kill_on_drop: false }`
[INFO] [stdout] 14baac0e5ee8715b7a3b51104a74d24bf79b894654446d9959532c4044918f40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] aaf9f65ca383d5f1a2681c6d7642be14cb1b9af936058c9c637cf5b03babdfd2
[INFO] running `Command { std: "docker" "start" "-a" "aaf9f65ca383d5f1a2681c6d7642be14cb1b9af936058c9c637cf5b03babdfd2", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated function `std::mem::min_align_of`: use `align_of` instead
[INFO] [stderr]    --> src/lib.rs:180:58
[INFO] [stderr]     |
[INFO] [stderr] 180 |         let memory = self.alloc_raw(mem::size_of::<T>(), mem::min_align_of::<T>());
[INFO] [stderr]     |                                                          ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::mem::min_align_of`: use `align_of` instead
[INFO] [stderr]    --> src/lib.rs:196:49
[INFO] [stderr]     |
[INFO] [stderr] 196 |         let memory = self.alloc_raw(byte_count, mem::min_align_of::<T>());
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:203:13
[INFO] [stderr]     |
[INFO] [stderr] 203 |         let mut slice = self.alloc_slice_raw(elems.len());
[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: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:215:13
[INFO] [stderr]     |
[INFO] [stderr] 215 |         let mut slice = self.alloc_slice_raw(len);
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::mem::min_align_of`: use `align_of` instead
[INFO] [stderr]    --> src/lib.rs:180:58
[INFO] [stderr]     |
[INFO] [stderr] 180 |         let memory = self.alloc_raw(mem::size_of::<T>(), mem::min_align_of::<T>());
[INFO] [stderr]     |                                                          ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::mem::min_align_of`: use `align_of` instead
[INFO] [stderr]    --> src/lib.rs:196:49
[INFO] [stderr]     |
[INFO] [stderr] 196 |         let memory = self.alloc_raw(byte_count, mem::min_align_of::<T>());
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:203:13
[INFO] [stderr]     |
[INFO] [stderr] 203 |         let mut slice = self.alloc_slice_raw(elems.len());
[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: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:215:13
[INFO] [stderr]     |
[INFO] [stderr] 215 |         let mut slice = self.alloc_slice_raw(len);
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/copy_arena-a327ac313be0745a)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test barely_too_little_capacity ... ok
[INFO] [stdout] test construct_simple ... ok
[INFO] [stdout] test construct_slices ... ok
[INFO] [stdout] test just_enough_capacity ... ok
[INFO] [stdout] test many_u8s ... ok
[INFO] [stdout] test surprisingly_large ... ok
[INFO] [stdout] test zero_capacity ... ok
[INFO] [stdout] test zero_size ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests copy_arena
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 30) ... ok
[INFO] [stdout] test src/lib.rs - (line 14) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.49s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "aaf9f65ca383d5f1a2681c6d7642be14cb1b9af936058c9c637cf5b03babdfd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aaf9f65ca383d5f1a2681c6d7642be14cb1b9af936058c9c637cf5b03babdfd2", kill_on_drop: false }`
[INFO] [stdout] aaf9f65ca383d5f1a2681c6d7642be14cb1b9af936058c9c637cf5b03babdfd2
