[INFO] fetching crate gc-gcm 0.10.0...
[INFO] testing gc-gcm-0.10.0 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate gc-gcm 0.10.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate gc-gcm 0.10.0
[INFO] finished tweaking crates.io crate gc-gcm 0.10.0
[INFO] tweaked toml for crates.io crate gc-gcm 0.10.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate gc-gcm 0.10.0 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate gc-gcm 0.10.0 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3ec31e92df89af428e1f67fb688f55057fba3279d5937da238820ee1a7240fd4
[INFO] running `Command { std: "docker" "start" "-a" "3ec31e92df89af428e1f67fb688f55057fba3279d5937da238820ee1a7240fd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ec31e92df89af428e1f67fb688f55057fba3279d5937da238820ee1a7240fd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ec31e92df89af428e1f67fb688f55057fba3279d5937da238820ee1a7240fd4", kill_on_drop: false }`
[INFO] [stdout] 3ec31e92df89af428e1f67fb688f55057fba3279d5937da238820ee1a7240fd4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 89c210b117dee452318d60bc91313f700aa8f389ec5416c8f42f1779fba29ddd
[INFO] running `Command { std: "docker" "start" "-a" "89c210b117dee452318d60bc91313f700aa8f389ec5416c8f42f1779fba29ddd", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling binread_derive v1.4.3
[INFO] [stderr]    Compiling binread v1.4.1
[INFO] [stderr]    Compiling gc-gcm v0.10.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: derive helper attribute is used before it is introduced
[INFO] [stdout]    --> src/lib.rs:167:3
[INFO] [stdout]     |
[INFO] [stdout] 167 | #[br(import(root_offset: u64, name_offset: u64))]
[INFO] [stdout]     |   ^^
[INFO] [stdout] 168 | #[derive(BinRead, Debug)]
[INFO] [stdout]     |          ------- the attribute is introduced here
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout]     = note: `#[deny(legacy_derive_helpers)]` (part of `#[deny(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `fs_offset`, `fs_size`, and `max_fs_size` are never read
[INFO] [stdout]   --> src/lib.rs:93:5
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub struct GcmFile {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 93 |     fs_offset: u32,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 94 |     fs_size: u32,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 95 |     max_fs_size: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `GcmFile` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `date`, `entrypoint_ptr`, and `padding` are never read
[INFO] [stdout]    --> src/lib.rs:129:5
[INFO] [stdout]     |
[INFO] [stdout] 128 | pub struct ApploaderHeader {
[INFO] [stdout]     |            --------------- fields in this struct
[INFO] [stdout] 129 |     date: [u8; 0x10],
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 130 |     entrypoint_ptr: u32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 133 |     padding: [u8; 4],
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ApploaderHeader` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/dir_listing.rs:27:22
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn get_child(&self, child_name: &str) -> Option<DirEntry> {
[INFO] [stdout]    |                      ^^^^^ the lifetime is elided here  ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn get_child(&self, child_name: &str) -> Option<DirEntry<'_>> {
[INFO] [stdout]    |                                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gc-gcm` (lib) due to 2 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "89c210b117dee452318d60bc91313f700aa8f389ec5416c8f42f1779fba29ddd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89c210b117dee452318d60bc91313f700aa8f389ec5416c8f42f1779fba29ddd", kill_on_drop: false }`
[INFO] [stdout] 89c210b117dee452318d60bc91313f700aa8f389ec5416c8f42f1779fba29ddd
