[INFO] fetching crate chiter 0.4.3...
[INFO] checking chiter-0.4.3 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] extracting crate chiter 0.4.3 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate chiter 0.4.3 on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate chiter 0.4.3
[INFO] finished tweaking crates.io crate chiter 0.4.3
[INFO] tweaked toml for crates.io crate chiter 0.4.3 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--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 slice-pool v0.3.4
[INFO] [stderr]   Downloaded detour v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", 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] 560b1e6f2e98402af64c76a0c90b7abcf866ce8fe5fa22f1972d66988bb1ebdc
[INFO] running `Command { std: "docker" "start" "-a" "560b1e6f2e98402af64c76a0c90b7abcf866ce8fe5fa22f1972d66988bb1ebdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "560b1e6f2e98402af64c76a0c90b7abcf866ce8fe5fa22f1972d66988bb1ebdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "560b1e6f2e98402af64c76a0c90b7abcf866ce8fe5fa22f1972d66988bb1ebdc", kill_on_drop: false }`
[INFO] [stdout] 560b1e6f2e98402af64c76a0c90b7abcf866ce8fe5fa22f1972d66988bb1ebdc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1690150cd9a83830e960d7f797a61ecf101ff0e44824e36d2624ceb2e6c03df8
[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" "1690150cd9a83830e960d7f797a61ecf101ff0e44824e36d2624ceb2e6c03df8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rustversion v1.0.4
[INFO] [stderr]     Checking chiter v0.4.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/memory.rs:105:10
[INFO] [stdout]     |
[INFO] [stdout] 105 |         );*
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `add_one` is assigned to, but never used
[INFO] [stdout]  --> src/lib.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 |         let add_one;
[INFO] [stdout]   |             ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]   = note: consider using `_add_one` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `get_random_number` is assigned to, but never used
[INFO] [stdout]  --> src/lib.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 |         let get_random_number;
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: consider using `_get_random_number` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `add_one` is never read
[INFO] [stdout]    --> src/memory.rs:104:13
[INFO] [stdout]     |
[INFO] [stdout] 104 |               $fn_name = std::mem::transmute::<*const usize, fn( $($argument),* ) -> $returntype>($address as *const usize);
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/lib.rs:9:13
[INFO] [stdout]     |
[INFO] [stdout] 9   | /             chiter::make_functions! {
[INFO] [stdout] 10  | |                 0xDEADBEEF; fn add_one(i32) -> i32;
[INFO] [stdout] 11  | |                 0xDEADBEEFu32 + 70; fn get_random_number() -> i32;
[INFO] [stdout] 12  | |             }
[INFO] [stdout]     | |_____________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `get_random_number` is never read
[INFO] [stdout]    --> src/memory.rs:104:13
[INFO] [stdout]     |
[INFO] [stdout] 104 |               $fn_name = std::mem::transmute::<*const usize, fn( $($argument),* ) -> $returntype>($address as *const usize);
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/lib.rs:9:13
[INFO] [stdout]     |
[INFO] [stdout] 9   | /             chiter::make_functions! {
[INFO] [stdout] 10  | |                 0xDEADBEEF; fn add_one(i32) -> i32;
[INFO] [stdout] 11  | |                 0xDEADBEEFu32 + 70; fn get_random_number() -> i32;
[INFO] [stdout] 12  | |             }
[INFO] [stdout]     | |_____________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.97s
[INFO] running `Command { std: "docker" "inspect" "1690150cd9a83830e960d7f797a61ecf101ff0e44824e36d2624ceb2e6c03df8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1690150cd9a83830e960d7f797a61ecf101ff0e44824e36d2624ceb2e6c03df8", kill_on_drop: false }`
[INFO] [stdout] 1690150cd9a83830e960d7f797a61ecf101ff0e44824e36d2624ceb2e6c03df8