[INFO] cloning repository https://github.com/valarauca/bechmark_ct
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/valarauca/bechmark_ct" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvalarauca%2Fbechmark_ct", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvalarauca%2Fbechmark_ct'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f94c084e899e5428d0e317bf832d2c6102d889eb
[INFO] testing valarauca/bechmark_ct against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvalarauca%2Fbechmark_ct" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/valarauca/bechmark_ct on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/valarauca/bechmark_ct
[INFO] removed path dependency amd64_timer from git repo https://github.com/valarauca/bechmark_ct
[INFO] finished tweaking git repo https://github.com/valarauca/bechmark_ct
[INFO] tweaked toml for git repo https://github.com/valarauca/bechmark_ct written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/valarauca/bechmark_ct already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (amd64_timer) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-8/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (amd64_timer) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a29b4138e86a5afd35b4a997f5cc6d089419fd8c534766f758b14a6187bb555
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0a29b4138e86a5afd35b4a997f5cc6d089419fd8c534766f758b14a6187bb555", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a29b4138e86a5afd35b4a997f5cc6d089419fd8c534766f758b14a6187bb555", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a29b4138e86a5afd35b4a997f5cc6d089419fd8c534766f758b14a6187bb555", kill_on_drop: false }`
[INFO] [stdout] 0a29b4138e86a5afd35b4a997f5cc6d089419fd8c534766f758b14a6187bb555
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 69df9cda213c8957330d1adc0e1fbce04a2568edb1a6055a9473f485b8fb90e2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "69df9cda213c8957330d1adc0e1fbce04a2568edb1a6055a9473f485b8fb90e2", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (amd64_timer) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling consistenttime v0.2.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling amd64_timer v1.3.0
[INFO] [stderr]    Compiling benchmark_ct v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> src/cli.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::time::precise_time_ns as now`
[INFO] [stdout]  --> src/nt.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::time::precise_time_ns as now;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::exit`
[INFO] [stdout]  --> src/nt.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::process::exit;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::thread::sleep_ms`: replaced by `std::thread::sleep`
[INFO] [stdout]  --> src/bench.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::thread::sleep_ms;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::thread::sleep_ms`: replaced by `std::thread::sleep`
[INFO] [stdout]   --> src/bench.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |         sleep_ms(sleep);
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::thread::sleep_ms`: replaced by `std::thread::sleep`
[INFO] [stdout]   --> src/bench.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |         sleep_ms(sleep);
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::thread::sleep_ms`: replaced by `std::thread::sleep`
[INFO] [stdout]   --> src/bench.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 |         sleep_ms(sleep);
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::thread::sleep_ms`: replaced by `std::thread::sleep`
[INFO] [stdout]   --> src/bench.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |         sleep_ms(sleep);
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ct` is never read
[INFO] [stdout]   --> src/nt.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |         let mut ct = 0u64;
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `v1` is never read
[INFO] [stdout]   --> src/bench.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut v1 = 0u64;
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `a` is never read
[INFO] [stdout]   --> src/bench.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut a = 0u8;
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `b` is never read
[INFO] [stdout]   --> src/bench.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut b = 0u8;
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `start` is never read
[INFO] [stdout]   --> src/bench.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut start = 0u64;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `end` is never read
[INFO] [stdout]   --> src/bench.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let mut end = 0u64;
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `delta` is never read
[INFO] [stdout]   --> src/bench.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut delta = 0u64;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `delta` is never read
[INFO] [stdout]   --> src/bench.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     delta = 0u64;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `delta` is never read
[INFO] [stdout]   --> src/bench.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     delta = 0u64;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `delta` is never read
[INFO] [stdout]   --> src/bench.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     delta = 0u64;
[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/nt.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let mut avg = (running_avg/1000000u64) as f64;
[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: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.41s
[INFO] running `Command { std: "docker" "inspect" "69df9cda213c8957330d1adc0e1fbce04a2568edb1a6055a9473f485b8fb90e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69df9cda213c8957330d1adc0e1fbce04a2568edb1a6055a9473f485b8fb90e2", kill_on_drop: false }`
[INFO] [stdout] 69df9cda213c8957330d1adc0e1fbce04a2568edb1a6055a9473f485b8fb90e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 93e184e6ec40d6a2034ff3814c3d188a482f63c2b95b22b762e5b56cbf282b60
[INFO] running `Command { std: "docker" "start" "-a" "93e184e6ec40d6a2034ff3814c3d188a482f63c2b95b22b762e5b56cbf282b60", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (amd64_timer) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling benchmark_ct v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> src/cli.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::time::precise_time_ns as now`
[INFO] [stdout]  --> src/nt.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::time::precise_time_ns as now;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::exit`
[INFO] [stdout]  --> src/nt.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::process::exit;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::thread::sleep_ms`: replaced by `std::thread::sleep`
[INFO] [stdout]  --> src/bench.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::thread::sleep_ms;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::thread::sleep_ms`: replaced by `std::thread::sleep`
[INFO] [stdout]   --> src/bench.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |         sleep_ms(sleep);
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::thread::sleep_ms`: replaced by `std::thread::sleep`
[INFO] [stdout]   --> src/bench.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |         sleep_ms(sleep);
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::thread::sleep_ms`: replaced by `std::thread::sleep`
[INFO] [stdout]   --> src/bench.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 |         sleep_ms(sleep);
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::thread::sleep_ms`: replaced by `std::thread::sleep`
[INFO] [stdout]   --> src/bench.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |         sleep_ms(sleep);
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ct` is never read
[INFO] [stdout]   --> src/nt.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |         let mut ct = 0u64;
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `v1` is never read
[INFO] [stdout]   --> src/bench.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut v1 = 0u64;
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `a` is never read
[INFO] [stdout]   --> src/bench.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut a = 0u8;
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `b` is never read
[INFO] [stdout]   --> src/bench.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut b = 0u8;
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `start` is never read
[INFO] [stdout]   --> src/bench.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut start = 0u64;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `end` is never read
[INFO] [stdout]   --> src/bench.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let mut end = 0u64;
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `delta` is never read
[INFO] [stdout]   --> src/bench.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut delta = 0u64;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `delta` is never read
[INFO] [stdout]   --> src/bench.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     delta = 0u64;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `delta` is never read
[INFO] [stdout]   --> src/bench.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     delta = 0u64;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `delta` is never read
[INFO] [stdout]   --> src/bench.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     delta = 0u64;
[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/nt.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let mut avg = (running_avg/1000000u64) as f64;
[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: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.45s
[INFO] running `Command { std: "docker" "inspect" "93e184e6ec40d6a2034ff3814c3d188a482f63c2b95b22b762e5b56cbf282b60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93e184e6ec40d6a2034ff3814c3d188a482f63c2b95b22b762e5b56cbf282b60", kill_on_drop: false }`
[INFO] [stdout] 93e184e6ec40d6a2034ff3814c3d188a482f63c2b95b22b762e5b56cbf282b60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cb2477cf8a01c7c8b825f623fe2e5df3ee5e1431925bbf609fb7964c4e9b5ecf
[INFO] running `Command { std: "docker" "start" "-a" "cb2477cf8a01c7c8b825f623fe2e5df3ee5e1431925bbf609fb7964c4e9b5ecf", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (amd64_timer) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]  --> src/cli.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::thread;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::time::precise_time_ns as now`
[INFO] [stderr]  --> src/nt.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use super::time::precise_time_ns as now;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::process::exit`
[INFO] [stderr]  --> src/nt.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::process::exit;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::thread::sleep_ms`: replaced by `std::thread::sleep`
[INFO] [stderr]  --> src/bench.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::thread::sleep_ms;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::thread::sleep_ms`: replaced by `std::thread::sleep`
[INFO] [stderr]   --> src/bench.rs:29:9
[INFO] [stderr]    |
[INFO] [stderr] 29 |         sleep_ms(sleep);
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::thread::sleep_ms`: replaced by `std::thread::sleep`
[INFO] [stderr]   --> src/bench.rs:48:9
[INFO] [stderr]    |
[INFO] [stderr] 48 |         sleep_ms(sleep);
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::thread::sleep_ms`: replaced by `std::thread::sleep`
[INFO] [stderr]   --> src/bench.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |         sleep_ms(sleep);
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::thread::sleep_ms`: replaced by `std::thread::sleep`
[INFO] [stderr]   --> src/bench.rs:93:9
[INFO] [stderr]    |
[INFO] [stderr] 93 |         sleep_ms(sleep);
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `ct` is never read
[INFO] [stderr]   --> src/nt.rs:11:13
[INFO] [stderr]    |
[INFO] [stderr] 11 |         let mut ct = 0u64;
[INFO] [stderr]    |             ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `v1` is never read
[INFO] [stderr]   --> src/bench.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let mut v1 = 0u64;
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `a` is never read
[INFO] [stderr]   --> src/bench.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let mut a = 0u8;
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `b` is never read
[INFO] [stderr]   --> src/bench.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let mut b = 0u8;
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `start` is never read
[INFO] [stderr]   --> src/bench.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let mut start = 0u64;
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `end` is never read
[INFO] [stderr]   --> src/bench.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let mut end = 0u64;
[INFO] [stderr]    |         ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `delta` is never read
[INFO] [stderr]   --> src/bench.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let mut delta = 0u64;
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `delta` is never read
[INFO] [stderr]   --> src/bench.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     delta = 0u64;
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `delta` is never read
[INFO] [stderr]   --> src/bench.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     delta = 0u64;
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `delta` is never read
[INFO] [stderr]   --> src/bench.rs:77:5
[INFO] [stderr]    |
[INFO] [stderr] 77 |     delta = 0u64;
[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/nt.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let mut avg = (running_avg/1000000u64) as f64;
[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: 19 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/benchmark_ct-1c8915735bad1ceb
[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 `Command { std: "docker" "inspect" "cb2477cf8a01c7c8b825f623fe2e5df3ee5e1431925bbf609fb7964c4e9b5ecf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb2477cf8a01c7c8b825f623fe2e5df3ee5e1431925bbf609fb7964c4e9b5ecf", kill_on_drop: false }`
[INFO] [stdout] cb2477cf8a01c7c8b825f623fe2e5df3ee5e1431925bbf609fb7964c4e9b5ecf