[INFO] cloning repository https://github.com/anyin233/compilingTheroy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/anyin233/compilingTheroy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanyin233%2FcompilingTheroy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanyin233%2FcompilingTheroy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 52376a5c2aacd5fb99090e44d400c98b2fdc0a38
[INFO] checking anyin233/compilingTheroy/52376a5c2aacd5fb99090e44d400c98b2fdc0a38 against try#31561a63598a0f21fc74c024747ef1310fdd2eb2 for pr-133536
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanyin233%2FcompilingTheroy" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/anyin233/compilingTheroy on toolchain 31561a63598a0f21fc74c024747ef1310fdd2eb2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/anyin233/compilingTheroy
[INFO] finished tweaking git repo https://github.com/anyin233/compilingTheroy
[INFO] tweaked toml for git repo https://github.com/anyin233/compilingTheroy written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/anyin233/compilingTheroy 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" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 565a21858b3eae84cd2c491ea8ec6e01ed94e9d993450bfe41a4c5e41dab2882
[INFO] running `Command { std: "docker" "start" "-a" "565a21858b3eae84cd2c491ea8ec6e01ed94e9d993450bfe41a4c5e41dab2882", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "565a21858b3eae84cd2c491ea8ec6e01ed94e9d993450bfe41a4c5e41dab2882", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "565a21858b3eae84cd2c491ea8ec6e01ed94e9d993450bfe41a4c5e41dab2882", kill_on_drop: false }`
[INFO] [stdout] 565a21858b3eae84cd2c491ea8ec6e01ed94e9d993450bfe41a4c5e41dab2882
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dbc59cdfe1ebda3c3469998e53768d5d5173ef6a08f44fe8228efdd8abb65813
[INFO] running `Command { std: "docker" "start" "-a" "dbc59cdfe1ebda3c3469998e53768d5d5173ef6a08f44fe8228efdd8abb65813", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking ll-1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `source_language` is never read
[INFO] [stdout]  --> src/ff/mod.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct FF {
[INFO] [stdout]   |            -- field in this struct
[INFO] [stdout] 9 |     source_language: HashMap<String, Vec<Vec<String>>>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `FF` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `source_language` is never read
[INFO] [stdout]  --> src/ff/mod.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct FF {
[INFO] [stdout]   |            -- field in this struct
[INFO] [stdout] 9 |     source_language: HashMap<String, Vec<Vec<String>>>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `FF` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]   --> src/lib.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 |     unsafe{Box::from_raw(ptr);}
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 65 |     unsafe{let _ = Box::from_raw(ptr);}
[INFO] [stdout]    |            +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `CString::from_raw` that must be used
[INFO] [stdout]   --> src/lib.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |         CString::from_raw(s);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: call `drop(from_raw(ptr))` if you intend to drop the `CString`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 96 |         let _ = CString::from_raw(s);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:159:12
[INFO] [stdout]     |
[INFO] [stdout] 159 |     unsafe{Box::from_raw(ptr);}
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 159 |     unsafe{let _ = Box::from_raw(ptr);}
[INFO] [stdout]     |            +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/ff/mod.rs:152:17
[INFO] [stdout]     |
[INFO] [stdout] 152 |                 drop(w);
[INFO] [stdout]     |                 ^^^^^-^
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      argument has type `&mut Vec<String>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 152 -                 drop(w);
[INFO] [stdout] 152 +                 let _ = w;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]   --> src/lib.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 |     unsafe{Box::from_raw(ptr);}
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 65 |     unsafe{let _ = Box::from_raw(ptr);}
[INFO] [stdout]    |            +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `CString::from_raw` that must be used
[INFO] [stdout]   --> src/lib.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |         CString::from_raw(s);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: call `drop(from_raw(ptr))` if you intend to drop the `CString`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 96 |         let _ = CString::from_raw(s);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:159:12
[INFO] [stdout]     |
[INFO] [stdout] 159 |     unsafe{Box::from_raw(ptr);}
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 159 |     unsafe{let _ = Box::from_raw(ptr);}
[INFO] [stdout]     |            +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/ff/mod.rs:152:17
[INFO] [stdout]     |
[INFO] [stdout] 152 |                 drop(w);
[INFO] [stdout]     |                 ^^^^^-^
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      argument has type `&mut Vec<String>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 152 -                 drop(w);
[INFO] [stdout] 152 +                 let _ = w;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.52s
[INFO] running `Command { std: "docker" "inspect" "dbc59cdfe1ebda3c3469998e53768d5d5173ef6a08f44fe8228efdd8abb65813", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbc59cdfe1ebda3c3469998e53768d5d5173ef6a08f44fe8228efdd8abb65813", kill_on_drop: false }`
[INFO] [stdout] dbc59cdfe1ebda3c3469998e53768d5d5173ef6a08f44fe8228efdd8abb65813
