[INFO] cloning repository https://github.com/ConnorBP/benchme
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ConnorBP/benchme" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FConnorBP%2Fbenchme", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FConnorBP%2Fbenchme'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e8e43ba6ba7b146cf1412d794a71837fd24ffee9
[INFO] testing ConnorBP/benchme against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FConnorBP%2Fbenchme" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ConnorBP/benchme on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ConnorBP/benchme
[INFO] finished tweaking git repo https://github.com/ConnorBP/benchme
[INFO] tweaked toml for git repo https://github.com/ConnorBP/benchme written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/ConnorBP/benchme already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-12/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[INFO] the lockfile is outdated, regenerating it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" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 47c21bd8eefd21cdc2291e2c96582fe784bfc737c218f0925692999262379e4b
[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" "47c21bd8eefd21cdc2291e2c96582fe784bfc737c218f0925692999262379e4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47c21bd8eefd21cdc2291e2c96582fe784bfc737c218f0925692999262379e4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47c21bd8eefd21cdc2291e2c96582fe784bfc737c218f0925692999262379e4b", kill_on_drop: false }`
[INFO] [stdout] 47c21bd8eefd21cdc2291e2c96582fe784bfc737c218f0925692999262379e4b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ce98635c38e51fd6de7c104891a9b9bd4a6e321cf3fa3dd85578b1b70657c78
[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" "0ce98635c38e51fd6de7c104891a9b9bd4a6e321cf3fa3dd85578b1b70657c78", kill_on_drop: false }`
[INFO] [stderr]    Compiling benchme v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "0ce98635c38e51fd6de7c104891a9b9bd4a6e321cf3fa3dd85578b1b70657c78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ce98635c38e51fd6de7c104891a9b9bd4a6e321cf3fa3dd85578b1b70657c78", kill_on_drop: false }`
[INFO] [stdout] 0ce98635c38e51fd6de7c104891a9b9bd4a6e321cf3fa3dd85578b1b70657c78
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5868f35d225003c5de51fafce6708692c122bdb1650e6cd3500a71408efe41dc
[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" "5868f35d225003c5de51fafce6708692c122bdb1650e6cd3500a71408efe41dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling benchme v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Duration`
[INFO] [stdout]   --> src/lib.rs:50:30
[INFO] [stdout]    |
[INFO] [stdout] 50 |     use std::time::{Instant, Duration};
[INFO] [stdout]    |                              ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/lib.rs:20:21
[INFO] [stdout]    |
[INFO] [stdout] 20 |               $($lines;)*
[INFO] [stdout]    |                       ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 61 | /         benchmarknamed! {
[INFO] [stdout] 62 | |             #[IhaveAname]
[INFO] [stdout] 63 | |             for x in 0..10 {
[INFO] [stdout] 64 | |                 let y = x * 2;
[INFO] [stdout] 65 | |             };
[INFO] [stdout] 66 | |         }
[INFO] [stdout]    | |_________- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/lib.rs:64:21
[INFO] [stdout]    |
[INFO] [stdout] 64 |                 let y = x * 2;
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `Command { std: "docker" "inspect" "5868f35d225003c5de51fafce6708692c122bdb1650e6cd3500a71408efe41dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5868f35d225003c5de51fafce6708692c122bdb1650e6cd3500a71408efe41dc", kill_on_drop: false }`
[INFO] [stdout] 5868f35d225003c5de51fafce6708692c122bdb1650e6cd3500a71408efe41dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] ca7222de37e86be738dd9cd068f49be2c6b4974e9487ad96d60c857f1484c30a
[INFO] running `Command { std: "docker" "start" "-a" "ca7222de37e86be738dd9cd068f49be2c6b4974e9487ad96d60c857f1484c30a", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `Duration`
[INFO] [stderr]   --> src/lib.rs:50:30
[INFO] [stderr]    |
[INFO] [stderr] 50 |     use std::time::{Instant, Duration};
[INFO] [stderr]    |                              ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> src/lib.rs:20:21
[INFO] [stderr]    |
[INFO] [stderr] 20 |               $($lines;)*
[INFO] [stderr]    |                       ^ help: remove this semicolon
[INFO] [stderr] ...
[INFO] [stderr] 61 | /         benchmarknamed! {
[INFO] [stderr] 62 | |             #[IhaveAname]
[INFO] [stderr] 63 | |             for x in 0..10 {
[INFO] [stderr] 64 | |                 let y = x * 2;
[INFO] [stderr] 65 | |             };
[INFO] [stderr] 66 | |         }
[INFO] [stderr]    | |_________- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> src/lib.rs:64:21
[INFO] [stderr]    |
[INFO] [stderr] 64 |                 let y = x * 2;
[INFO] [stderr]    |                     ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/benchme-fd3cb34a08084f3a
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::test_benchmark ... ok
[INFO] [stderr]    Doc-tests benchme
[INFO] [stdout] test tests::test_benchmark_named ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ca7222de37e86be738dd9cd068f49be2c6b4974e9487ad96d60c857f1484c30a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca7222de37e86be738dd9cd068f49be2c6b4974e9487ad96d60c857f1484c30a", kill_on_drop: false }`
[INFO] [stdout] ca7222de37e86be738dd9cd068f49be2c6b4974e9487ad96d60c857f1484c30a