[INFO] fetching crate fast_io 1.2.2...
[INFO] building fast_io-1.2.2 against try#d5c88c22807925c189328ef9d923c5d2b11a95b8+rustflags=-Zprofile-closures for pr-87066-3
[INFO] extracting crate fast_io 1.2.2 into /workspace/builds/worker-41/source
[INFO] validating manifest of crates.io crate fast_io 1.2.2 on toolchain d5c88c22807925c189328ef9d923c5d2b11a95b8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fast_io 1.2.2
[INFO] finished tweaking crates.io crate fast_io 1.2.2
[INFO] tweaked toml for crates.io crate fast_io 1.2.2 written to /workspace/builds/worker-41/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a5a15f31011802998eba82bed770a31d5e4a4f044f4147c03298a1e0fc49ad80
[INFO] running `Command { std: "docker" "start" "-a" "a5a15f31011802998eba82bed770a31d5e4a4f044f4147c03298a1e0fc49ad80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5a15f31011802998eba82bed770a31d5e4a4f044f4147c03298a1e0fc49ad80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5a15f31011802998eba82bed770a31d5e4a4f044f4147c03298a1e0fc49ad80", kill_on_drop: false }`
[INFO] [stdout] a5a15f31011802998eba82bed770a31d5e4a4f044f4147c03298a1e0fc49ad80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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 -Zprofile-closures" "-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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8fece0cd9ad0f2188810a43d7149bb408aafeb367087c8ebf7cfe1388dbd9f7f
[INFO] running `Command { std: "docker" "start" "-a" "8fece0cd9ad0f2188810a43d7149bb408aafeb367087c8ebf7cfe1388dbd9f7f", kill_on_drop: false }`
[INFO] [stderr]    Compiling fast_io v1.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]  --> src/copy_io.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::mem::{uninitialized, size_of};
[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::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/copy_io.rs:16:34
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let mut t : T = unsafe { uninitialized() };
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/copy_io.rs:37:31
[INFO] [stdout]    |
[INFO] [stdout] 37 |             let mut ts = vec![uninitialized::<T>(); size];
[INFO] [stdout]    |                               ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/copy_io.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 |         let mut buffer = unsafe {
[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/copy_io.rs:38:17
[INFO] [stdout]    |
[INFO] [stdout] 38 |             let mut buffer = slice::from_raw_parts_mut(
[INFO] [stdout]    |                 ----^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "8fece0cd9ad0f2188810a43d7149bb408aafeb367087c8ebf7cfe1388dbd9f7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fece0cd9ad0f2188810a43d7149bb408aafeb367087c8ebf7cfe1388dbd9f7f", kill_on_drop: false }`
[INFO] [stdout] 8fece0cd9ad0f2188810a43d7149bb408aafeb367087c8ebf7cfe1388dbd9f7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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 -Zprofile-closures" "-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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] caa7a7a42a07e92f9242beb5d764afc27653beaf91da1b98014f665ede4e668e
[INFO] running `Command { std: "docker" "start" "-a" "caa7a7a42a07e92f9242beb5d764afc27653beaf91da1b98014f665ede4e668e", kill_on_drop: false }`
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]  --> src/copy_io.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::mem::{uninitialized, size_of};
[INFO] [stdout]   |                ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling fast_io v1.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/copy_io.rs:16:34
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let mut t : T = unsafe { uninitialized() };
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/copy_io.rs:37:31
[INFO] [stdout]    |
[INFO] [stdout] 37 |             let mut ts = vec![uninitialized::<T>(); size];
[INFO] [stdout]    |                               ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/copy_io.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 |         let mut buffer = unsafe {
[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/copy_io.rs:38:17
[INFO] [stdout]    |
[INFO] [stdout] 38 |             let mut buffer = slice::from_raw_parts_mut(
[INFO] [stdout]    |                 ----^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]  --> src/copy_io.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::mem::{uninitialized, size_of};
[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::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/copy_io.rs:16:34
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let mut t : T = unsafe { uninitialized() };
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/copy_io.rs:37:31
[INFO] [stdout]    |
[INFO] [stdout] 37 |             let mut ts = vec![uninitialized::<T>(); size];
[INFO] [stdout]    |                               ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/copy_io.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 |         let mut buffer = unsafe {
[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/copy_io.rs:38:17
[INFO] [stdout]    |
[INFO] [stdout] 38 |             let mut buffer = slice::from_raw_parts_mut(
[INFO] [stdout]    |                 ----^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] SG_CR_Eslkdjf: fast_io, (9c3befacc23125ba, c6fd6c74835fa37e), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: fast_io, (ae61bec38885253b, 974ce479894e04ca), 0, 0
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `Command { std: "docker" "inspect" "caa7a7a42a07e92f9242beb5d764afc27653beaf91da1b98014f665ede4e668e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "caa7a7a42a07e92f9242beb5d764afc27653beaf91da1b98014f665ede4e668e", kill_on_drop: false }`
[INFO] [stdout] caa7a7a42a07e92f9242beb5d764afc27653beaf91da1b98014f665ede4e668e