[INFO] fetching crate jump 0.1.0... [INFO] checking jump-0.1.0 against master#f42f19b6d3d785a74dbe57aa395b6c288437dd51 for pr-107123-1 [INFO] extracting crate jump 0.1.0 into /workspace/builds/worker-6-tc1/source [INFO] validating manifest of crates.io crate jump 0.1.0 on toolchain f42f19b6d3d785a74dbe57aa395b6c288437dd51 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f42f19b6d3d785a74dbe57aa395b6c288437dd51" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate jump 0.1.0 [INFO] finished tweaking crates.io crate jump 0.1.0 [INFO] tweaked toml for crates.io crate jump 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f42f19b6d3d785a74dbe57aa395b6c288437dd51" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f42f19b6d3d785a74dbe57aa395b6c288437dd51" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded void v1.0.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+f42f19b6d3d785a74dbe57aa395b6c288437dd51" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 49a3bd90391a75b4efebdbcf368d39059abb1a10b60c357cf6a7e9d810a0fb41 [INFO] running `Command { std: "docker" "start" "-a" "49a3bd90391a75b4efebdbcf368d39059abb1a10b60c357cf6a7e9d810a0fb41", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "49a3bd90391a75b4efebdbcf368d39059abb1a10b60c357cf6a7e9d810a0fb41", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "49a3bd90391a75b4efebdbcf368d39059abb1a10b60c357cf6a7e9d810a0fb41", kill_on_drop: false }` [INFO] [stdout] 49a3bd90391a75b4efebdbcf368d39059abb1a10b60c357cf6a7e9d810a0fb41 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+f42f19b6d3d785a74dbe57aa395b6c288437dd51" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b55f3afbb3a0afa22e21433106f15be6cf84725001bb62bae639e73d3deb70cd [INFO] running `Command { std: "docker" "start" "-a" "b55f3afbb3a0afa22e21433106f15be6cf84725001bb62bae639e73d3deb70cd", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling jump v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking void v1.0.2 [INFO] [stdout] warning: use of deprecated function `core::mem::uninitialized`: use `mem::MaybeUninit` instead [INFO] [stdout] --> src/lib.rs:30:34 [INFO] [stdout] | [INFO] [stdout] 30 | let mut jump = Jump(mem::uninitialized(), &mut opt_x); [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `core::mem::uninitialized`: use `mem::MaybeUninit` instead [INFO] [stdout] --> src/lib.rs:30:34 [INFO] [stdout] | [INFO] [stdout] 30 | let mut jump = Jump(mem::uninitialized(), &mut opt_x); [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `opt_y` is never read [INFO] [stdout] --> src/lib.rs:71:5 [INFO] [stdout] | [INFO] [stdout] 71 | opt_y = Some(()); [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `n_saved_regs` should have an upper case name [INFO] [stdout] --> src/lib.rs:15:7 [INFO] [stdout] | [INFO] [stdout] 15 | const n_saved_regs: usize = 8; [INFO] [stdout] | ^^^^^^^^^^^^ help: convert the identifier to upper case: `N_SAVED_REGS` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_upper_case_globals)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the type `[usize; 8]` does not permit being left uninitialized [INFO] [stdout] --> src/lib.rs:30:29 [INFO] [stdout] | [INFO] [stdout] 30 | let mut jump = Jump(mem::uninitialized(), &mut opt_x); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this code causes undefined behavior when executed [INFO] [stdout] | help: use `MaybeUninit` instead, and only call `assume_init` after initialization is done [INFO] [stdout] | [INFO] [stdout] = note: integers must be initialized [INFO] [stdout] = note: `#[warn(invalid_value)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `n_saved_regs` should have an upper case name [INFO] [stdout] --> src/lib.rs:15:7 [INFO] [stdout] | [INFO] [stdout] 15 | const n_saved_regs: usize = 8; [INFO] [stdout] | ^^^^^^^^^^^^ help: convert the identifier to upper case: `N_SAVED_REGS` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_upper_case_globals)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the type `[usize; 8]` does not permit being left uninitialized [INFO] [stdout] --> src/lib.rs:30:29 [INFO] [stdout] | [INFO] [stdout] 30 | let mut jump = Jump(mem::uninitialized(), &mut opt_x); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this code causes undefined behavior when executed [INFO] [stdout] | help: use `MaybeUninit` instead, and only call `assume_init` after initialization is done [INFO] [stdout] | [INFO] [stdout] = note: integers must be initialized [INFO] [stdout] = note: `#[warn(invalid_value)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.48s [INFO] running `Command { std: "docker" "inspect" "b55f3afbb3a0afa22e21433106f15be6cf84725001bb62bae639e73d3deb70cd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b55f3afbb3a0afa22e21433106f15be6cf84725001bb62bae639e73d3deb70cd", kill_on_drop: false }` [INFO] [stdout] b55f3afbb3a0afa22e21433106f15be6cf84725001bb62bae639e73d3deb70cd