[INFO] fetching crate env_derive 0.1.0...
[INFO] testing env_derive-0.1.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate env_derive 0.1.0 into /workspace/builds/worker-28/source
[INFO] validating manifest of crates.io crate env_derive 0.1.0 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 env_derive 0.1.0
[INFO] finished tweaking crates.io crate env_derive 0.1.0
[INFO] tweaked toml for crates.io crate env_derive 0.1.0 written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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] dcb6ddcdfcce96fc767fda5692f8c192c674036d94f37171c9d1cf74dd4ddc21
[INFO] running `Command { std: "docker" "start" "-a" "dcb6ddcdfcce96fc767fda5692f8c192c674036d94f37171c9d1cf74dd4ddc21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dcb6ddcdfcce96fc767fda5692f8c192c674036d94f37171c9d1cf74dd4ddc21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcb6ddcdfcce96fc767fda5692f8c192c674036d94f37171c9d1cf74dd4ddc21", kill_on_drop: false }`
[INFO] [stdout] dcb6ddcdfcce96fc767fda5692f8c192c674036d94f37171c9d1cf74dd4ddc21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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] f003381bb59036f00af906acc13ead4f0fe506eb068cf42d6e01ac35ff896cbf
[INFO] running `Command { std: "docker" "start" "-a" "f003381bb59036f00af906acc13ead4f0fe506eb068cf42d6e01ac35ff896cbf", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling darling_core v0.13.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling darling_macro v0.13.1
[INFO] [stderr]    Compiling darling v0.13.1
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling proc-macro-crate v1.1.3
[INFO] [stderr]    Compiling env_derive v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `attrs`
[INFO] [stdout]   --> src/env.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     attrs: Vec<syn::Attribute>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` 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 14.32s
[INFO] running `Command { std: "docker" "inspect" "f003381bb59036f00af906acc13ead4f0fe506eb068cf42d6e01ac35ff896cbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f003381bb59036f00af906acc13ead4f0fe506eb068cf42d6e01ac35ff896cbf", kill_on_drop: false }`
[INFO] [stdout] f003381bb59036f00af906acc13ead4f0fe506eb068cf42d6e01ac35ff896cbf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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] 3b1eba6f0aac85b654f44f657b6b6b7890664458a9d6e10d8f996799ca75af0c
[INFO] running `Command { std: "docker" "start" "-a" "3b1eba6f0aac85b654f44f657b6b6b7890664458a9d6e10d8f996799ca75af0c", kill_on_drop: false }`
[INFO] [stderr]    Compiling env_derive v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `attrs`
[INFO] [stdout]   --> src/env.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     attrs: Vec<syn::Attribute>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `attrs`
[INFO] [stdout]   --> src/env.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     attrs: Vec<syn::Attribute>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "3b1eba6f0aac85b654f44f657b6b6b7890664458a9d6e10d8f996799ca75af0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b1eba6f0aac85b654f44f657b6b6b7890664458a9d6e10d8f996799ca75af0c", kill_on_drop: false }`
[INFO] [stdout] 3b1eba6f0aac85b654f44f657b6b6b7890664458a9d6e10d8f996799ca75af0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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] 2b6e33aa38cd5788676fbbc8c0b214510fa2b12eb83c7cc52a26547976da517c
[INFO] running `Command { std: "docker" "start" "-a" "2b6e33aa38cd5788676fbbc8c0b214510fa2b12eb83c7cc52a26547976da517c", 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] [stderr] warning: field is never read: `attrs`
[INFO] [stderr]   --> src/env.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     attrs: Vec<syn::Attribute>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `env_derive` (lib) generated 1 warning
[INFO] [stderr] warning: `env_derive` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.23s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/env_derive-896178468bf52a7b)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests env_derive
[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] [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" "2b6e33aa38cd5788676fbbc8c0b214510fa2b12eb83c7cc52a26547976da517c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b6e33aa38cd5788676fbbc8c0b214510fa2b12eb83c7cc52a26547976da517c", kill_on_drop: false }`
[INFO] [stdout] 2b6e33aa38cd5788676fbbc8c0b214510fa2b12eb83c7cc52a26547976da517c