[INFO] fetching crate serde-with-expand-env 1.1.0...
[INFO] checking serde-with-expand-env-1.1.0 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate serde-with-expand-env 1.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate serde-with-expand-env 1.1.0 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde-with-expand-env 1.1.0
[INFO] finished tweaking crates.io crate serde-with-expand-env 1.1.0
[INFO] tweaked toml for crates.io crate serde-with-expand-env 1.1.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate serde-with-expand-env 1.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f2a95345997bef49839a00da50b5753d0c12bdc2b80fe7e267803b4d848e38c
[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" "5f2a95345997bef49839a00da50b5753d0c12bdc2b80fe7e267803b4d848e38c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f2a95345997bef49839a00da50b5753d0c12bdc2b80fe7e267803b4d848e38c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f2a95345997bef49839a00da50b5753d0c12bdc2b80fe7e267803b4d848e38c", kill_on_drop: false }`
[INFO] [stdout] 5f2a95345997bef49839a00da50b5753d0c12bdc2b80fe7e267803b4d848e38c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 665342cd42cdbdf75c5162f8ebd0f43a8e3302ad8f37679eaa67b3c70588cb62
[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" "665342cd42cdbdf75c5162f8ebd0f43a8e3302ad8f37679eaa67b3c70588cb62", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking shellexpand v2.0.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking serde v1.0.104
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking serde-with-expand-env v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `number`
[INFO] [stdout]  --> examples/serde_toml.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     number: f32,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `string`
[INFO] [stdout]   --> examples/serde_toml.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     string: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> examples/serde_toml.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `inner`
[INFO] [stdout]   --> examples/serde_toml.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     inner: Vec<Inner>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `number`
[INFO] [stdout]  --> examples/serde_json.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     number: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `string`
[INFO] [stdout]   --> examples/serde_json.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     string: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `with_defaut`
[INFO] [stdout]   --> examples/serde_json.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     with_defaut: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.76s
[INFO] running `Command { std: "docker" "inspect" "665342cd42cdbdf75c5162f8ebd0f43a8e3302ad8f37679eaa67b3c70588cb62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "665342cd42cdbdf75c5162f8ebd0f43a8e3302ad8f37679eaa67b3c70588cb62", kill_on_drop: false }`
[INFO] [stdout] 665342cd42cdbdf75c5162f8ebd0f43a8e3302ad8f37679eaa67b3c70588cb62