[INFO] fetching crate env2js 1.0.1...
[INFO] testing env2js-1.0.1 against 1.59.0 for beta-1.60-1
[INFO] extracting crate env2js 1.0.1 into /workspace/builds/worker-62/source
[INFO] validating manifest of crates.io crate env2js 1.0.1 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-62/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" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e27be0505557ae16c4e8cb3a80ade94803980d0ad6988924aa80417c671748f8
[INFO] running `Command { std: "docker" "start" "-a" "e27be0505557ae16c4e8cb3a80ade94803980d0ad6988924aa80417c671748f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e27be0505557ae16c4e8cb3a80ade94803980d0ad6988924aa80417c671748f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e27be0505557ae16c4e8cb3a80ade94803980d0ad6988924aa80417c671748f8", kill_on_drop: false }`
[INFO] [stdout] e27be0505557ae16c4e8cb3a80ade94803980d0ad6988924aa80417c671748f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c3f6077bd2db782458244ff415ff9778e5a49b8d35460793a56aa05dbc5be70e
[INFO] running `Command { std: "docker" "start" "-a" "c3f6077bd2db782458244ff415ff9778e5a49b8d35460793a56aa05dbc5be70e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[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]    |             ^
[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 7.60s
[INFO] running `Command { std: "docker" "inspect" "c3f6077bd2db782458244ff415ff9778e5a49b8d35460793a56aa05dbc5be70e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3f6077bd2db782458244ff415ff9778e5a49b8d35460793a56aa05dbc5be70e", kill_on_drop: false }`
[INFO] [stdout] c3f6077bd2db782458244ff415ff9778e5a49b8d35460793a56aa05dbc5be70e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f364782a81d230cd84afa5cf3b48bf84c5e88ae2b84963dd2a72bcc7478af306
[INFO] running `Command { std: "docker" "start" "-a" "f364782a81d230cd84afa5cf3b48bf84c5e88ae2b84963dd2a72bcc7478af306", 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]    |             ^
[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 0.36s
[INFO] running `Command { std: "docker" "inspect" "f364782a81d230cd84afa5cf3b48bf84c5e88ae2b84963dd2a72bcc7478af306", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f364782a81d230cd84afa5cf3b48bf84c5e88ae2b84963dd2a72bcc7478af306", kill_on_drop: false }`
[INFO] [stdout] f364782a81d230cd84afa5cf3b48bf84c5e88ae2b84963dd2a72bcc7478af306
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 26a3feccd531a7afe872113f81fb39eded12fbb3ec6dfe273b82f86b3ebaa0e3
[INFO] running `Command { std: "docker" "start" "-a" "26a3feccd531a7afe872113f81fb39eded12fbb3ec6dfe273b82f86b3ebaa0e3", 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]    |             ^
[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 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/env2js-212fba7cd3c50ef9)
[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" "26a3feccd531a7afe872113f81fb39eded12fbb3ec6dfe273b82f86b3ebaa0e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26a3feccd531a7afe872113f81fb39eded12fbb3ec6dfe273b82f86b3ebaa0e3", kill_on_drop: false }`
[INFO] [stdout] 26a3feccd531a7afe872113f81fb39eded12fbb3ec6dfe273b82f86b3ebaa0e3