[INFO] crate compiler-builtins-snapshot 0.1.20170127+764557f0b669bb0e28817c5ae70c9d718685e35a is already in cache
[INFO] testing compiler-builtins-snapshot-0.1.20170127+764557f0b669bb0e28817c5ae70c9d718685e35a against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] extracting crate compiler-builtins-snapshot 0.1.20170127+764557f0b669bb0e28817c5ae70c9d718685e35a into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate compiler-builtins-snapshot 0.1.20170127+764557f0b669bb0e28817c5ae70c9d718685e35a on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate compiler-builtins-snapshot 0.1.20170127+764557f0b669bb0e28817c5ae70c9d718685e35a
[INFO] finished tweaking crates.io crate compiler-builtins-snapshot 0.1.20170127+764557f0b669bb0e28817c5ae70c9d718685e35a
[INFO] tweaked toml for crates.io crate compiler-builtins-snapshot 0.1.20170127+764557f0b669bb0e28817c5ae70c9d718685e35a written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9e5d0a0e4047af31f9c52bcd274e90587c439ea641efe2d00eae2c04dc07b63d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9e5d0a0e4047af31f9c52bcd274e90587c439ea641efe2d00eae2c04dc07b63d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e5d0a0e4047af31f9c52bcd274e90587c439ea641efe2d00eae2c04dc07b63d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e5d0a0e4047af31f9c52bcd274e90587c439ea641efe2d00eae2c04dc07b63d", kill_on_drop: false }`
[INFO] [stdout] 9e5d0a0e4047af31f9c52bcd274e90587c439ea641efe2d00eae2c04dc07b63d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7c97712bf6839634a2605a3e4de745707743ec484fc03560fa0b745eef527b6f
[INFO] running `Command { std: "docker" "start" "-a" "7c97712bf6839634a2605a3e4de745707743ec484fc03560fa0b745eef527b6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc-cfg v0.3.0
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling compiler-builtins-snapshot v0.1.20170127+764557f0b669bb0e28817c5ae70c9d718685e35a (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'gcc::Config': gcc::Config has been renamed to gcc::Build
[INFO] [stdout]   --> build.rs:66:24
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let cfg = &mut gcc::Config::new();
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'gcc::Build::new': crate has been renamed to `cc`, the `gcc` name is not maintained
[INFO] [stdout]   --> build.rs:66:24
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let cfg = &mut gcc::Config::new();
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unused macro definition
[INFO] [stdout]   --> src/lib.rs:70:1
[INFO] [stdout]    |
[INFO] [stdout] 70 | / macro_rules! srem {
[INFO] [stdout] 71 | |     ($sty:ty, $a:expr, $b:expr) => {
[INFO] [stdout] 72 | |         unsafe {
[INFO] [stdout] 73 | |             let a = $a;
[INFO] [stdout] ...  |
[INFO] [stdout] 82 | |     }
[INFO] [stdout] 83 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:1:31
[INFO] [stdout]    |
[INFO] [stdout] 1  | #![cfg_attr(not(stage0), deny(warnings))]
[INFO] [stdout]    |                               ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(unused_macros)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: use of deprecated item 'core::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/int/udiv.rs:112:28
[INFO] [stdout]     |
[INFO] [stdout] 112 |     let mut rem = unsafe { mem::uninitialized() };
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:1:31
[INFO] [stdout]     |
[INFO] [stdout] 1   | #![cfg_attr(not(stage0), deny(warnings))]
[INFO] [stdout]     |                               ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(deprecated)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `compiler-builtins-snapshot`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "7c97712bf6839634a2605a3e4de745707743ec484fc03560fa0b745eef527b6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c97712bf6839634a2605a3e4de745707743ec484fc03560fa0b745eef527b6f", kill_on_drop: false }`
[INFO] [stdout] 7c97712bf6839634a2605a3e4de745707743ec484fc03560fa0b745eef527b6f