[INFO] fetching crate mplx 0.1.2...
[INFO] checking mplx-0.1.2 against try#6284d7b4bd27983dba388146648ab844ca7d032f for pr-152971
[INFO] extracting crate mplx 0.1.2 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate mplx 0.1.2
[INFO] finished tweaking crates.io crate mplx 0.1.2
[INFO] tweaked toml for crates.io crate mplx 0.1.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mplx 0.1.2 on toolchain 6284d7b4bd27983dba388146648ab844ca7d032f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6284d7b4bd27983dba388146648ab844ca7d032f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mplx 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6284d7b4bd27983dba388146648ab844ca7d032f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+6284d7b4bd27983dba388146648ab844ca7d032f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2d4bcffecb4d721878ab8a4be8a09b4be463d63780a064a8d7c33808542aba0d
[INFO] running `Command { std: "docker" "start" "-a" "2d4bcffecb4d721878ab8a4be8a09b4be463d63780a064a8d7c33808542aba0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d4bcffecb4d721878ab8a4be8a09b4be463d63780a064a8d7c33808542aba0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d4bcffecb4d721878ab8a4be8a09b4be463d63780a064a8d7c33808542aba0d", kill_on_drop: false }`
[INFO] [stdout] 2d4bcffecb4d721878ab8a4be8a09b4be463d63780a064a8d7c33808542aba0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+6284d7b4bd27983dba388146648ab844ca7d032f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1209ccf0281d893289a0002aa509c1de13762b3225365b09fdffb8ac49d8f28
[INFO] running `Command { std: "docker" "start" "-a" "a1209ccf0281d893289a0002aa509c1de13762b3225365b09fdffb8ac49d8f28", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.111
[INFO] [stderr]     Checking tracing-core v0.1.35
[INFO] [stderr]    Compiling find-msvc-tools v0.1.5
[INFO] [stderr]     Checking http v1.4.0
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling libc v0.2.178
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]     Checking regex-automata v0.4.13
[INFO] [stderr]    Compiling crunchy v0.2.4
[INFO] [stderr]     Checking serde_json v1.0.145
[INFO] [stderr]     Checking uuid v1.19.0
[INFO] [stderr]     Checking bit-vec v0.8.0
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking murmur3 v0.4.1
[INFO] [stderr]    Compiling cc v1.2.49
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking iri-string v0.7.9
[INFO] [stderr]    Compiling time-core v0.1.6
[INFO] [stderr]     Checking typed-arena v2.0.2
[INFO] [stderr]     Checking better_any v0.2.0
[INFO] [stderr]     Checking bit-set v0.8.0
[INFO] [stderr]     Checking rustls-pki-types v1.13.1
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking nom v8.0.0
[INFO] [stderr]    Compiling time-macros v0.2.24
[INFO] [stderr]     Checking antlr4rust v0.3.0-rc2
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]    Compiling protobuf v2.28.0
[INFO] [stderr]     Checking fraction v0.15.3
[INFO] [stderr]     Checking bytecount v0.6.9
[INFO] [stderr]    Compiling prometheus v0.13.4
[INFO] [stderr]     Checking num-cmp v0.1.0
[INFO] [stderr]     Checking arraydeque v0.5.1
[INFO] [stderr]     Checking http-body v1.0.1
[INFO] [stderr]     Checking dirs-sys v0.5.0
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking hdrhistogram v7.5.4
[INFO] [stderr]     Checking serde_path_to_error v0.1.20
[INFO] [stderr]     Checking http-body-util v0.1.3
[INFO] [stderr]     Checking console v0.15.11
[INFO] [stderr]     Checking dirs v6.0.0
[INFO] [stderr]     Checking number_prefix v0.4.0
[INFO] [stderr]     Checking shellexpand v3.1.1
[INFO] [stderr]     Checking open v5.3.3
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/shellexpand-3.1.1/src/funcs.rs:395:21
[INFO] [stdout]     |
[INFO] [stdout] 394 |                 let var_name = match var_name.as_str() {
[INFO] [stdout]     |                                      ----------------- this expression has type `&str`
[INFO] [stdout] 395 |                     Some(var_name) => var_name,
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^ expected `str`, found `Option<_>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected type `str`
[INFO] [stdout]                found enum `Option<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/shellexpand-3.1.1/src/funcs.rs:397:21
[INFO] [stdout]     |
[INFO] [stdout] 394 |                 let var_name = match var_name.as_str() {
[INFO] [stdout]     |                                      ----------------- this expression has type `&str`
[INFO] [stdout] ...
[INFO] [stdout] 397 |                     None => return Ok(None),
[INFO] [stdout]     |                     ^^^^ expected `str`, found `Option<_>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected type `str`
[INFO] [stdout]                found enum `Option<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `shellexpand` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "a1209ccf0281d893289a0002aa509c1de13762b3225365b09fdffb8ac49d8f28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1209ccf0281d893289a0002aa509c1de13762b3225365b09fdffb8ac49d8f28", kill_on_drop: false }`
[INFO] [stdout] a1209ccf0281d893289a0002aa509c1de13762b3225365b09fdffb8ac49d8f28