[INFO] fetching crate get_env 0.1.0...
[INFO] checking get_env-0.1.0 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] extracting crate get_env 0.1.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate get_env 0.1.0 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate get_env 0.1.0
[INFO] finished tweaking crates.io crate get_env 0.1.0
[INFO] tweaked toml for crates.io crate get_env 0.1.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cb6decdc78d4352024b9e0221d959c6eb6b4d274c23e9f63bf11cc9ac20651fd
[INFO] running `Command { std: "docker" "start" "-a" "cb6decdc78d4352024b9e0221d959c6eb6b4d274c23e9f63bf11cc9ac20651fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb6decdc78d4352024b9e0221d959c6eb6b4d274c23e9f63bf11cc9ac20651fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb6decdc78d4352024b9e0221d959c6eb6b4d274c23e9f63bf11cc9ac20651fd", kill_on_drop: false }`
[INFO] [stdout] cb6decdc78d4352024b9e0221d959c6eb6b4d274c23e9f63bf11cc9ac20651fd
[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=forbid" "-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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1aab2cbebdcfb0975350be9a2ea8de694d87b0dfab02a9658c87bb9d14494816
[INFO] running `Command { std: "docker" "start" "-a" "1aab2cbebdcfb0975350be9a2ea8de694d87b0dfab02a9658c87bb9d14494816", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling escargot v0.2.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking get_env v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking float-cmp v0.4.0
[INFO] [stdout] warning: the feature `used` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:35:10
[INFO] [stdout]    |
[INFO] [stdout] 35 |     feature(used)
[INFO] [stdout]    |             ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking predicates v0.5.2
[INFO] [stderr]     Checking assert_cmd v0.6.0
[INFO] [stdout] warning: the feature `used` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:35:10
[INFO] [stdout]    |
[INFO] [stdout] 35 |     feature(used)
[INFO] [stdout]    |             ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` 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 23.30s
[INFO] running `Command { std: "docker" "inspect" "1aab2cbebdcfb0975350be9a2ea8de694d87b0dfab02a9658c87bb9d14494816", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1aab2cbebdcfb0975350be9a2ea8de694d87b0dfab02a9658c87bb9d14494816", kill_on_drop: false }`
[INFO] [stdout] 1aab2cbebdcfb0975350be9a2ea8de694d87b0dfab02a9658c87bb9d14494816