[INFO] crate env2js 1.0.1 is already in cache
[INFO] testing env2js-1.0.1 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate env2js 1.0.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate env2js 1.0.1 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", 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-1/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-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8678f9c45c3fb3af773f450a3e4297a5ae90900c96d4d80b8c587e1d80d7b2f4
[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" "8678f9c45c3fb3af773f450a3e4297a5ae90900c96d4d80b8c587e1d80d7b2f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8678f9c45c3fb3af773f450a3e4297a5ae90900c96d4d80b8c587e1d80d7b2f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8678f9c45c3fb3af773f450a3e4297a5ae90900c96d4d80b8c587e1d80d7b2f4", kill_on_drop: false }`
[INFO] [stdout] 8678f9c45c3fb3af773f450a3e4297a5ae90900c96d4d80b8c587e1d80d7b2f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--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] f91c2ed24bd051fc73be49f6b50e4413f1149f8448221daf265398c2f4e1f350
[INFO] running `Command { std: "docker" "start" "-a" "f91c2ed24bd051fc73be49f6b50e4413f1149f8448221daf265398c2f4e1f350", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling dotenv v0.15.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[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 22.05s
[INFO] running `Command { std: "docker" "inspect" "f91c2ed24bd051fc73be49f6b50e4413f1149f8448221daf265398c2f4e1f350", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f91c2ed24bd051fc73be49f6b50e4413f1149f8448221daf265398c2f4e1f350", kill_on_drop: false }`
[INFO] [stdout] f91c2ed24bd051fc73be49f6b50e4413f1149f8448221daf265398c2f4e1f350
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "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] 84e04dcc0ea64aea5458cf04b7ab1927892498c0b883184792ea6b2acc148dcc
[INFO] running `Command { std: "docker" "start" "-a" "84e04dcc0ea64aea5458cf04b7ab1927892498c0b883184792ea6b2acc148dcc", 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 0.70s
[INFO] running `Command { std: "docker" "inspect" "84e04dcc0ea64aea5458cf04b7ab1927892498c0b883184792ea6b2acc148dcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84e04dcc0ea64aea5458cf04b7ab1927892498c0b883184792ea6b2acc148dcc", kill_on_drop: false }`
[INFO] [stdout] 84e04dcc0ea64aea5458cf04b7ab1927892498c0b883184792ea6b2acc148dcc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7db55c4eee1c618ebde22935d8d1a656f03a9e166f2fae46159ba4ac77b33f3d
[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" "7db55c4eee1c618ebde22935d8d1a656f03a9e166f2fae46159ba4ac77b33f3d", 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: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/env2js-77ed737aa7185255
[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" "7db55c4eee1c618ebde22935d8d1a656f03a9e166f2fae46159ba4ac77b33f3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7db55c4eee1c618ebde22935d8d1a656f03a9e166f2fae46159ba4ac77b33f3d", kill_on_drop: false }`
[INFO] [stdout] 7db55c4eee1c618ebde22935d8d1a656f03a9e166f2fae46159ba4ac77b33f3d