[INFO] fetching crate perftacho 0.4.2...
[INFO] testing perftacho-0.4.2 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate perftacho 0.4.2 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate perftacho 0.4.2 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 crates.io crate perftacho 0.4.2
[INFO] finished tweaking crates.io crate perftacho 0.4.2
[INFO] tweaked toml for crates.io crate perftacho 0.4.2 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate perftacho 0.4.2 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 76748d0a57481933969638b26de1fedf8ca9028c72516441dbb6dbc825ef4afd
[INFO] running `Command { std: "docker" "start" "-a" "76748d0a57481933969638b26de1fedf8ca9028c72516441dbb6dbc825ef4afd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76748d0a57481933969638b26de1fedf8ca9028c72516441dbb6dbc825ef4afd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76748d0a57481933969638b26de1fedf8ca9028c72516441dbb6dbc825ef4afd", kill_on_drop: false }`
[INFO] [stdout] 76748d0a57481933969638b26de1fedf8ca9028c72516441dbb6dbc825ef4afd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 28d8f242e8ef4e8d53814268a85dd1c119cf505eebb74da11c2541c1a4cee5b7
[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" "28d8f242e8ef4e8d53814268a85dd1c119cf505eebb74da11c2541c1a4cee5b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.6.16
[INFO] [stderr]    Compiling yaml-rust v0.4.3
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]    Compiling regex v1.3.4
[INFO] [stderr]    Compiling perftacho v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/process/mod.rs:72:25
[INFO] [stdout]    |
[INFO] [stdout] 72 |         Err(e) => Err(e.description().to_owned()),
[INFO] [stdout]    |                         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.40s
[INFO] running `Command { std: "docker" "inspect" "28d8f242e8ef4e8d53814268a85dd1c119cf505eebb74da11c2541c1a4cee5b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28d8f242e8ef4e8d53814268a85dd1c119cf505eebb74da11c2541c1a4cee5b7", kill_on_drop: false }`
[INFO] [stdout] 28d8f242e8ef4e8d53814268a85dd1c119cf505eebb74da11c2541c1a4cee5b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ed7de6ce9aef2ec8d638fed8eaeac1c4e9df12c0b908275fdb8f611d1bce7142
[INFO] running `Command { std: "docker" "start" "-a" "ed7de6ce9aef2ec8d638fed8eaeac1c4e9df12c0b908275fdb8f611d1bce7142", kill_on_drop: false }`
[INFO] [stderr]    Compiling perftacho v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/process/mod.rs:72:25
[INFO] [stdout]    |
[INFO] [stdout] 72 |         Err(e) => Err(e.description().to_owned()),
[INFO] [stdout]    |                         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.92s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ed7de6ce9aef2ec8d638fed8eaeac1c4e9df12c0b908275fdb8f611d1bce7142", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed7de6ce9aef2ec8d638fed8eaeac1c4e9df12c0b908275fdb8f611d1bce7142", kill_on_drop: false }`
[INFO] [stdout] ed7de6ce9aef2ec8d638fed8eaeac1c4e9df12c0b908275fdb8f611d1bce7142
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] [stdout] ca14c9bbd290ddf619e9f2782fa5193230022c974e22fe0f228fe1126ff07631
[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" "ca14c9bbd290ddf619e9f2782fa5193230022c974e22fe0f228fe1126ff07631", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/process/mod.rs:72:25
[INFO] [stderr]    |
[INFO] [stderr] 72 |         Err(e) => Err(e.description().to_owned()),
[INFO] [stderr]    |                         ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/perftacho-2b89f12395a67704
[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" "ca14c9bbd290ddf619e9f2782fa5193230022c974e22fe0f228fe1126ff07631", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca14c9bbd290ddf619e9f2782fa5193230022c974e22fe0f228fe1126ff07631", kill_on_drop: false }`
[INFO] [stdout] ca14c9bbd290ddf619e9f2782fa5193230022c974e22fe0f228fe1126ff07631