[INFO] fetching crate allow-me 0.1.1...
[INFO] testing allow-me-0.1.1 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate allow-me 0.1.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate allow-me 0.1.1
[INFO] finished tweaking crates.io crate allow-me 0.1.1
[INFO] tweaked toml for crates.io crate allow-me 0.1.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate allow-me 0.1.1 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 allow-me 0.1.1 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded assert_matches v1.4.0
[INFO] [stderr]   Downloaded thread_local v1.1.0
[INFO] [stderr]   Downloaded test-case v1.0.0
[INFO] [stderr]   Downloaded rusty-fork v0.2.2
[INFO] [stderr]   Downloaded proptest v0.9.6
[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] 9cb23a1961316af8ebd84613fcdb9d4053ed4e97aa1f522f9d08cf68d5471ace
[INFO] running `Command { std: "docker" "start" "-a" "9cb23a1961316af8ebd84613fcdb9d4053ed4e97aa1f522f9d08cf68d5471ace", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9cb23a1961316af8ebd84613fcdb9d4053ed4e97aa1f522f9d08cf68d5471ace", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cb23a1961316af8ebd84613fcdb9d4053ed4e97aa1f522f9d08cf68d5471ace", kill_on_drop: false }`
[INFO] [stdout] 9cb23a1961316af8ebd84613fcdb9d4053ed4e97aa1f522f9d08cf68d5471ace
[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] 2f6c7bd0e52569b0b73b46344221aeec5a2eca28a3a54a37bd7992ca8a4e4b9d
[INFO] running `Command { std: "docker" "start" "-a" "2f6c7bd0e52569b0b73b46344221aeec5a2eca28a3a54a37bd7992ca8a4e4b9d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling thread_local v1.1.0
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling thiserror v1.0.23
[INFO] [stderr]    Compiling allow-me v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: variable does not need to be mutable
[INFO] [stdout]    --> src/core/builder.rs:130:21
[INFO] [stdout]     |
[INFO] [stdout] 130 |         for (order, mut statement) in definition.statements.iter_mut().enumerate() {
[INFO] [stdout]     |                     ----^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:51:27
[INFO] [stdout]     |
[INFO] [stdout] 51  | #![deny(rust_2018_idioms, warnings)]
[INFO] [stdout]     |                           ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(unused_mut)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `allow-me` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "2f6c7bd0e52569b0b73b46344221aeec5a2eca28a3a54a37bd7992ca8a4e4b9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f6c7bd0e52569b0b73b46344221aeec5a2eca28a3a54a37bd7992ca8a4e4b9d", kill_on_drop: false }`
[INFO] [stdout] 2f6c7bd0e52569b0b73b46344221aeec5a2eca28a3a54a37bd7992ca8a4e4b9d