[INFO] fetching crate gram 0.0.4...
[INFO] testing gram-0.0.4 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate gram 0.0.4 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate gram 0.0.4
[INFO] finished tweaking crates.io crate gram 0.0.4
[INFO] tweaked toml for crates.io crate gram 0.0.4 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate gram 0.0.4 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate gram 0.0.4 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4478c0c8bb8ab374be6f5f75d308039ced2763f37c954f1d4e719f90ae451072
[INFO] running `Command { std: "docker" "start" "-a" "4478c0c8bb8ab374be6f5f75d308039ced2763f37c954f1d4e719f90ae451072", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4478c0c8bb8ab374be6f5f75d308039ced2763f37c954f1d4e719f90ae451072", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4478c0c8bb8ab374be6f5f75d308039ced2763f37c954f1d4e719f90ae451072", kill_on_drop: false }`
[INFO] [stdout] 4478c0c8bb8ab374be6f5f75d308039ced2763f37c954f1d4e719f90ae451072
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] e473c2e3ffea8f85a0a5993f73cdffe809bd44595a2c90ce200ac28a8fe2bbf8
[INFO] running `Command { std: "docker" "start" "-a" "e473c2e3ffea8f85a0a5993f73cdffe809bd44595a2c90ce200ac28a8fe2bbf8", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling pad v0.1.6
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling term_size v0.3.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling colored v1.9.3
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling gram v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] error: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/error.rs:37:20
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn source<'a>(&'a self) -> Option<&(dyn error::Error + 'static)> {
[INFO] [stdout]    |                    ^^                 ----------------------------- the lifetime gets resolved as `'a`
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/main.rs:1:40
[INFO] [stdout]    |
[INFO] [stdout] 1  | #![deny(clippy::all, clippy::pedantic, warnings)]
[INFO] [stdout]    |                                        ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(mismatched_lifetime_syntaxes)]` implied by `#[deny(warnings)]`
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn source<'a>(&'a self) -> Option<&'a (dyn error::Error + 'static)> {
[INFO] [stdout]    |                                        ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gram` (bin "gram") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "e473c2e3ffea8f85a0a5993f73cdffe809bd44595a2c90ce200ac28a8fe2bbf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e473c2e3ffea8f85a0a5993f73cdffe809bd44595a2c90ce200ac28a8fe2bbf8", kill_on_drop: false }`
[INFO] [stdout] e473c2e3ffea8f85a0a5993f73cdffe809bd44595a2c90ce200ac28a8fe2bbf8