[INFO] fetching crate elfloader32 0.0.3...
[INFO] testing elfloader32-0.0.3 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate elfloader32 0.0.3 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate elfloader32 0.0.3 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate elfloader32 0.0.3
[INFO] finished tweaking crates.io crate elfloader32 0.0.3
[INFO] tweaked toml for crates.io crate elfloader32 0.0.3 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 778b12b6d4eb0f139a749477da2c417c1128619860b47f14ddbadbe3948f1023
[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" "778b12b6d4eb0f139a749477da2c417c1128619860b47f14ddbadbe3948f1023", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "778b12b6d4eb0f139a749477da2c417c1128619860b47f14ddbadbe3948f1023", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "778b12b6d4eb0f139a749477da2c417c1128619860b47f14ddbadbe3948f1023", kill_on_drop: false }`
[INFO] [stdout] 778b12b6d4eb0f139a749477da2c417c1128619860b47f14ddbadbe3948f1023
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "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] fa5494cbed3a73e4f686a0fc4e8d57d235c2fff856b44582359480f6ad6e7b9b
[INFO] running `Command { std: "docker" "start" "-a" "fa5494cbed3a73e4f686a0fc4e8d57d235c2fff856b44582359480f6ad6e7b9b", kill_on_drop: false }`
[INFO] [stderr]    Compiling elfloader32 v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:1:56
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(no_std, core, core_prelude, core_slice_ext, custom_derive)]
[INFO] [stdout]   |                                                        ^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: subsumed by `#[proc_macro_derive]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(no_std, core, core_prelude, core_slice_ext, custom_derive)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `no_std` has been stable since 1.6.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/elf.rs:446:13
[INFO] [stdout]     |
[INFO] [stdout] 446 |             try!(write!(f, "R"));
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/elf.rs:448:13
[INFO] [stdout]     |
[INFO] [stdout] 448 |             try!(write!(f, " "));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/elf.rs:451:13
[INFO] [stdout]     |
[INFO] [stdout] 451 |             try!(write!(f, "W"));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/elf.rs:453:13
[INFO] [stdout]     |
[INFO] [stdout] 453 |             try!(write!(f, " "));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:157:64
[INFO] [stdout]     |
[INFO] [stdout] 157 |     fn load_header(&self, p: &elf::ProgramHeader, loader: &mut ElfLoader) {
[INFO] [stdout]     |                                                                ^^^^^^^^^ help: use `dyn`: `dyn ElfLoader`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:172:37
[INFO] [stdout]     |
[INFO] [stdout] 172 |     pub fn load(&self, loader: &mut ElfLoader) {
[INFO] [stdout]     |                                     ^^^^^^^^^ help: use `dyn`: `dyn ElfLoader`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `elfloader32` due to 3 previous errors; 6 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "fa5494cbed3a73e4f686a0fc4e8d57d235c2fff856b44582359480f6ad6e7b9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa5494cbed3a73e4f686a0fc4e8d57d235c2fff856b44582359480f6ad6e7b9b", kill_on_drop: false }`
[INFO] [stdout] fa5494cbed3a73e4f686a0fc4e8d57d235c2fff856b44582359480f6ad6e7b9b
