[INFO] fetching crate prs-lib 0.5.7...
[INFO] checking prs-lib-0.5.7 against try#6284d7b4bd27983dba388146648ab844ca7d032f for pr-152971
[INFO] extracting crate prs-lib 0.5.7 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate prs-lib 0.5.7
[INFO] finished tweaking crates.io crate prs-lib 0.5.7
[INFO] tweaked toml for crates.io crate prs-lib 0.5.7 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate prs-lib 0.5.7 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 prs-lib 0.5.7 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] cc013e770223b18321e00fdff1df011da0b496479dd486681a71b311ef21ca8d
[INFO] running `Command { std: "docker" "start" "-a" "cc013e770223b18321e00fdff1df011da0b496479dd486681a71b311ef21ca8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc013e770223b18321e00fdff1df011da0b496479dd486681a71b311ef21ca8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc013e770223b18321e00fdff1df011da0b496479dd486681a71b311ef21ca8d", kill_on_drop: false }`
[INFO] [stdout] cc013e770223b18321e00fdff1df011da0b496479dd486681a71b311ef21ca8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] a1a8b841864b66acc370aefe751bbe26029460e4f074ba428b6e98c66cf8080e
[INFO] running `Command { std: "docker" "start" "-a" "a1a8b841864b66acc370aefe751bbe26029460e4f074ba428b6e98c66cf8080e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.179
[INFO] [stderr]    Compiling rustix v1.1.3
[INFO] [stderr]     Checking linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling procfs v0.18.0
[INFO] [stderr]    Compiling nix v0.30.1
[INFO] [stderr]     Checking regex-syntax v0.8.8
[INFO] [stderr]     Checking procfs-core v0.18.0
[INFO] [stderr]    Compiling prs-lib v0.5.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking env_home v0.1.0
[INFO] [stderr]     Checking version-compare v0.2.1
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]     Checking git-state v0.1.0
[INFO] [stderr]     Checking regex-automata v0.4.13
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking dirs-sys v0.5.0
[INFO] [stderr]     Checking secstr v0.5.1
[INFO] [stderr]     Checking dirs v6.0.0
[INFO] [stderr]     Checking shellexpand v3.1.1
[INFO] [stderr]     Checking rand_core v0.6.4
[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" "a1a8b841864b66acc370aefe751bbe26029460e4f074ba428b6e98c66cf8080e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1a8b841864b66acc370aefe751bbe26029460e4f074ba428b6e98c66cf8080e", kill_on_drop: false }`
[INFO] [stdout] a1a8b841864b66acc370aefe751bbe26029460e4f074ba428b6e98c66cf8080e