[INFO] crate minimad 0.6.4 is already in cache
[INFO] checking minimad-0.6.4 against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] extracting crate minimad 0.6.4 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate minimad 0.6.4 on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate minimad 0.6.4
[INFO] finished tweaking crates.io crate minimad 0.6.4
[INFO] tweaked toml for crates.io crate minimad 0.6.4 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 93417e5f569ab98b7c4f94a85177673ac986bdd67053807514713202a6c1dd2d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "93417e5f569ab98b7c4f94a85177673ac986bdd67053807514713202a6c1dd2d"`
[INFO] [stderr]     Checking minimad v0.6.4 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:56:1
[INFO] [stderr]    |
[INFO] [stderr] 56 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `arg_idx`
[INFO] [stderr]    --> src/inline_template.rs:103:13
[INFO] [stderr]     |
[INFO] [stderr] 103 |         let mut arg_idx = 0;
[INFO] [stderr]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_arg_idx`
[INFO] [stderr] ...
[INFO] [stderr] 176 |         let composite = mad_inline!("some `code`");
[INFO] [stderr]     |                         -------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `arg_idx` is never read
[INFO] [stderr]    --> src/inline_template.rs:107:13
[INFO] [stderr]     |
[INFO] [stderr] 107 |             arg_idx += 1;
[INFO] [stderr]     |             ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 188 |         let composite = mad_inline!("**$1:** `$0`", "π*r²", "area");
[INFO] [stderr]     |                         ------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/inline_template.rs:103:13
[INFO] [stderr]     |
[INFO] [stderr] 103 |         let mut arg_idx = 0;
[INFO] [stderr]     |             ----^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 176 |         let composite = mad_inline!("some `code`");
[INFO] [stderr]     |                         -------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/inline_template.rs:104:13
[INFO] [stderr]     |
[INFO] [stderr] 104 |         let mut composite = TEMPLATE.raw_composite();
[INFO] [stderr]     |             ----^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 176 |         let composite = mad_inline!("some `code`");
[INFO] [stderr]     |                         -------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `"docker" "inspect" "93417e5f569ab98b7c4f94a85177673ac986bdd67053807514713202a6c1dd2d"`
[INFO] running `"docker" "rm" "-f" "93417e5f569ab98b7c4f94a85177673ac986bdd67053807514713202a6c1dd2d"`
[INFO] [stdout] 93417e5f569ab98b7c4f94a85177673ac986bdd67053807514713202a6c1dd2d