[INFO] fetching crate env2js 1.0.1...
[INFO] testing env2js-1.0.1 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate env2js 1.0.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate env2js 1.0.1 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate env2js 1.0.1
[INFO] finished tweaking crates.io crate env2js 1.0.1
[INFO] tweaked toml for crates.io crate env2js 1.0.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate env2js 1.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94dfc2d714f8eeae668b0dc76f4b8416846d0dc7e0c4a2d97300a2a7b008afbd
[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" "94dfc2d714f8eeae668b0dc76f4b8416846d0dc7e0c4a2d97300a2a7b008afbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94dfc2d714f8eeae668b0dc76f4b8416846d0dc7e0c4a2d97300a2a7b008afbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94dfc2d714f8eeae668b0dc76f4b8416846d0dc7e0c4a2d97300a2a7b008afbd", kill_on_drop: false }`
[INFO] [stdout] 94dfc2d714f8eeae668b0dc76f4b8416846d0dc7e0c4a2d97300a2a7b008afbd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 50d15939f8949bbc2d874e9e76de73677a4e85de926d2a8bf490347e4d5e582b
[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" "50d15939f8949bbc2d874e9e76de73677a4e85de926d2a8bf490347e4d5e582b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling serde_json v1.0.48
[INFO] [stderr]    Compiling env2js v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/main.rs:64:13
[INFO] [stdout]    |
[INFO] [stdout] 64 | /             (prefix.is_none()
[INFO] [stdout] 65 | |                 || prefix.is_some() && k.starts_with(prefix.as_deref().unwrap()) == true)
[INFO] [stdout]    | |_________________________________________________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 64 |             prefix.is_none()
[INFO] [stdout] 65 |                 || prefix.is_some() && k.starts_with(prefix.as_deref().unwrap()) == true
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.06s
[INFO] running `Command { std: "docker" "inspect" "50d15939f8949bbc2d874e9e76de73677a4e85de926d2a8bf490347e4d5e582b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50d15939f8949bbc2d874e9e76de73677a4e85de926d2a8bf490347e4d5e582b", kill_on_drop: false }`
[INFO] [stdout] 50d15939f8949bbc2d874e9e76de73677a4e85de926d2a8bf490347e4d5e582b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8cd8ddc24dec61a5bfdeb566c07e64ddc9a929de5302bc59296f6fed037e4fdd
[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" "8cd8ddc24dec61a5bfdeb566c07e64ddc9a929de5302bc59296f6fed037e4fdd", kill_on_drop: false }`
[INFO] [stderr]    Compiling env2js v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/main.rs:64:13
[INFO] [stdout]    |
[INFO] [stdout] 64 | /             (prefix.is_none()
[INFO] [stdout] 65 | |                 || prefix.is_some() && k.starts_with(prefix.as_deref().unwrap()) == true)
[INFO] [stdout]    | |_________________________________________________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 64 |             prefix.is_none()
[INFO] [stdout] 65 |                 || prefix.is_some() && k.starts_with(prefix.as_deref().unwrap()) == true
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `Command { std: "docker" "inspect" "8cd8ddc24dec61a5bfdeb566c07e64ddc9a929de5302bc59296f6fed037e4fdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cd8ddc24dec61a5bfdeb566c07e64ddc9a929de5302bc59296f6fed037e4fdd", kill_on_drop: false }`
[INFO] [stdout] 8cd8ddc24dec61a5bfdeb566c07e64ddc9a929de5302bc59296f6fed037e4fdd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2021-08-01" "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] 911962db26cf407d2167b5db0dced5d914de65b1bac2bf4a5c9fbaa8eecc7fa9
[INFO] running `Command { std: "docker" "start" "-a" "911962db26cf407d2167b5db0dced5d914de65b1bac2bf4a5c9fbaa8eecc7fa9", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/main.rs:64:13
[INFO] [stderr]    |
[INFO] [stderr] 64 | /             (prefix.is_none()
[INFO] [stderr] 65 | |                 || prefix.is_some() && k.starts_with(prefix.as_deref().unwrap()) == true)
[INFO] [stderr]    | |_________________________________________________________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 64 |             prefix.is_none()
[INFO] [stderr] 65 |                 || prefix.is_some() && k.starts_with(prefix.as_deref().unwrap()) == true
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `env2js` (bin "env2js" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/env2js-4b8e2190f0b542cd)
[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" "911962db26cf407d2167b5db0dced5d914de65b1bac2bf4a5c9fbaa8eecc7fa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "911962db26cf407d2167b5db0dced5d914de65b1bac2bf4a5c9fbaa8eecc7fa9", kill_on_drop: false }`
[INFO] [stdout] 911962db26cf407d2167b5db0dced5d914de65b1bac2bf4a5c9fbaa8eecc7fa9
