[INFO] fetching crate fmedia 0.2.0...
[INFO] checking fmedia-0.2.0 against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] extracting crate fmedia 0.2.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate fmedia 0.2.0
[INFO] finished tweaking crates.io crate fmedia 0.2.0
[INFO] tweaked toml for crates.io crate fmedia 0.2.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fmedia 0.2.0 on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate fmedia 0.2.0 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c8588f7076b2f5c325c9dfa274fcdf0e8e48e7df2bebfebeec8710a26da5401c
[INFO] running `Command { std: "docker" "start" "-a" "c8588f7076b2f5c325c9dfa274fcdf0e8e48e7df2bebfebeec8710a26da5401c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8588f7076b2f5c325c9dfa274fcdf0e8e48e7df2bebfebeec8710a26da5401c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8588f7076b2f5c325c9dfa274fcdf0e8e48e7df2bebfebeec8710a26da5401c", kill_on_drop: false }`
[INFO] [stdout] c8588f7076b2f5c325c9dfa274fcdf0e8e48e7df2bebfebeec8710a26da5401c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd68bab01d28724d67cd7b8729c767dc95ba47af994d280f0047ec13fa6171c7
[INFO] running `Command { std: "docker" "start" "-a" "bd68bab01d28724d67cd7b8729c767dc95ba47af994d280f0047ec13fa6171c7", kill_on_drop: false }`
[INFO] [stderr]     Checking fmedia v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: mutation of an interior mutable `const` item with call to `call_once`
[INFO] [stdout]   --> src/lib.rs:72:17
[INFO] [stdout]    |
[INFO] [stdout] 72 |                 Self::ONCE_INIT.call_once(|| found = true);
[INFO] [stdout]    |                 ---------------^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 `ONCE_INIT` is a interior mutable `const` item of type `std::sync::Once`
[INFO] [stdout]    |
[INFO] [stdout]    = note: each usage of a `const` item creates a new temporary
[INFO] [stdout]    = note: only the temporaries and never the original `const ONCE_INIT` will be modified
[INFO] [stdout]    = help: for more details on interior mutability see <https://doc.rust-lang.org/reference/interior-mutability.html>
[INFO] [stdout]    = note: `#[warn(const_item_interior_mutations)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: mutation of an interior mutable `const` item with call to `call_once`
[INFO] [stdout]   --> src/lib.rs:72:17
[INFO] [stdout]    |
[INFO] [stdout] 72 |                 Self::ONCE_INIT.call_once(|| found = true);
[INFO] [stdout]    |                 ---------------^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 `ONCE_INIT` is a interior mutable `const` item of type `std::sync::Once`
[INFO] [stdout]    |
[INFO] [stdout]    = note: each usage of a `const` item creates a new temporary
[INFO] [stdout]    = note: only the temporaries and never the original `const ONCE_INIT` will be modified
[INFO] [stdout]    = help: for more details on interior mutability see <https://doc.rust-lang.org/reference/interior-mutability.html>
[INFO] [stdout]    = note: `#[warn(const_item_interior_mutations)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "bd68bab01d28724d67cd7b8729c767dc95ba47af994d280f0047ec13fa6171c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd68bab01d28724d67cd7b8729c767dc95ba47af994d280f0047ec13fa6171c7", kill_on_drop: false }`
[INFO] [stdout] bd68bab01d28724d67cd7b8729c767dc95ba47af994d280f0047ec13fa6171c7
