[INFO] fetching crate salph 0.2.1...
[INFO] checking salph-0.2.1 against try#8330aa5198c56eb493d06cd9c4cc91d00d70e3b6 for pr-103872
[INFO] extracting crate salph 0.2.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate salph 0.2.1 on toolchain 8330aa5198c56eb493d06cd9c4cc91d00d70e3b6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8330aa5198c56eb493d06cd9c4cc91d00d70e3b6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate salph 0.2.1
[INFO] finished tweaking crates.io crate salph 0.2.1
[INFO] tweaked toml for crates.io crate salph 0.2.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate salph 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8330aa5198c56eb493d06cd9c4cc91d00d70e3b6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+8330aa5198c56eb493d06cd9c4cc91d00d70e3b6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 663c0b6ced796125990550d76f6e4d7934ac886c4afe5288bbd2bcd91e9178bf
[INFO] running `Command { std: "docker" "start" "-a" "663c0b6ced796125990550d76f6e4d7934ac886c4afe5288bbd2bcd91e9178bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "663c0b6ced796125990550d76f6e4d7934ac886c4afe5288bbd2bcd91e9178bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "663c0b6ced796125990550d76f6e4d7934ac886c4afe5288bbd2bcd91e9178bf", kill_on_drop: false }`
[INFO] [stdout] 663c0b6ced796125990550d76f6e4d7934ac886c4afe5288bbd2bcd91e9178bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+8330aa5198c56eb493d06cd9c4cc91d00d70e3b6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a67adc6fe42803624d231a9b42b6c1a4d4f8bf3b20cd713ae953d4a0485339c9
[INFO] running `Command { std: "docker" "start" "-a" "a67adc6fe42803624d231a9b42b6c1a4d4f8bf3b20cd713ae953d4a0485339c9", kill_on_drop: false }`
[INFO] [stderr] warning: salph v0.2.1 (/opt/rustwide/workdir) ignoring invalid dependency `cargo-bump` which is missing a lib target
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling syn v1.0.96
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling cpufeatures v0.2.2
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling rustversion v1.0.6
[INFO] [stderr]     Checking os_str_bytes v6.1.0
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking clap_lex v0.2.2
[INFO] [stderr]     Checking tabular v0.2.0
[INFO] [stderr]     Checking strum v0.24.1
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling indexmap v1.8.2
[INFO] [stderr]    Compiling substring v1.4.5
[INFO] [stderr] error: failed to run custom build command for `rustversion v1.0.6`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/rustversion-b2baf8bde27c8632/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Error: unexpected output from `rustc --version`: ""
[INFO] [stderr] 
[INFO] [stderr]   Please file an issue in https://github.com/dtolnay/rustversion
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "a67adc6fe42803624d231a9b42b6c1a4d4f8bf3b20cd713ae953d4a0485339c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a67adc6fe42803624d231a9b42b6c1a4d4f8bf3b20cd713ae953d4a0485339c9", kill_on_drop: false }`
[INFO] [stdout] a67adc6fe42803624d231a9b42b6c1a4d4f8bf3b20cd713ae953d4a0485339c9