[INFO] fetching crate miniz_oxide_c_api 0.3.0...
[INFO] checking miniz_oxide_c_api-0.3.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate miniz_oxide_c_api 0.3.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate miniz_oxide_c_api 0.3.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate miniz_oxide_c_api 0.3.0
[INFO] finished tweaking crates.io crate miniz_oxide_c_api 0.3.0
[INFO] tweaked toml for crates.io crate miniz_oxide_c_api 0.3.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 8 packages
[INFO] [stderr]       Adding miniz_oxide v0.5.4 (latest: v0.7.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c173c6da526a7fcabd66cf4b73f05245a66c97cdf68d794c2a4697a3c1c41ce8
[INFO] running `Command { std: "docker" "start" "-a" "c173c6da526a7fcabd66cf4b73f05245a66c97cdf68d794c2a4697a3c1c41ce8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c173c6da526a7fcabd66cf4b73f05245a66c97cdf68d794c2a4697a3c1c41ce8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c173c6da526a7fcabd66cf4b73f05245a66c97cdf68d794c2a4697a3c1c41ce8", kill_on_drop: false }`
[INFO] [stdout] c173c6da526a7fcabd66cf4b73f05245a66c97cdf68d794c2a4697a3c1c41ce8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 70ae4d4ec52048026507c47c2013942b60f489edc9aa4a59ccbf39e69e8521e3
[INFO] running `Command { std: "docker" "start" "-a" "70ae4d4ec52048026507c47c2013942b60f489edc9aa4a59ccbf39e69e8521e3", kill_on_drop: false }`
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling miniz_oxide_c_api v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking miniz_oxide v0.5.4
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking libc v0.2.153
[INFO] [stderr]     Checking crc32fast v1.4.0
[INFO] [stdout] warning: the item `c_void` is imported redundantly
[INFO] [stdout]    --> src/tinfl.rs:256:9
[INFO] [stdout]     |
[INFO] [stdout] 255 |     use super::*;
[INFO] [stdout]     |         -------- the item `c_void` is already imported here
[INFO] [stdout] 256 |     use libc::c_void;
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `slice` is imported redundantly
[INFO] [stdout]    --> src/tinfl.rs:257:20
[INFO] [stdout]     |
[INFO] [stdout] 255 |     use super::*;
[INFO] [stdout]     |         -------- the item `slice` is already imported here
[INFO] [stdout] 256 |     use libc::c_void;
[INFO] [stdout] 257 |     use std::{ops, slice};
[INFO] [stdout]     |                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/tdef.rs:264:13
[INFO] [stdout]     |
[INFO] [stdout] 264 |             Box::from_raw(c);
[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] 264 |             let _ = Box::from_raw(c);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/tinfl.rs:225:13
[INFO] [stdout]     |
[INFO] [stdout] 225 |             Box::from_raw(c);
[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] 225 |             let _ = Box::from_raw(c);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/tdef.rs:264:13
[INFO] [stdout]     |
[INFO] [stdout] 264 |             Box::from_raw(c);
[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] 264 |             let _ = Box::from_raw(c);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/tinfl.rs:225:13
[INFO] [stdout]     |
[INFO] [stdout] 225 |             Box::from_raw(c);
[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] 225 |             let _ = Box::from_raw(c);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `c_void` is imported redundantly
[INFO] [stdout]    --> benches/bench.rs:225:23
[INFO] [stdout]     |
[INFO] [stdout] 224 |     use super::*;
[INFO] [stdout]     |         -------- the item `c_void` is already imported here
[INFO] [stdout] 225 |     use libc::{c_int, c_void};
[INFO] [stdout]     |                       ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> benches/bench.rs:227:5
[INFO] [stdout]     |
[INFO] [stdout] 227 | /     /// Functions from miniz
[INFO] [stdout] 228 | |     /// We add the link attribute to make sure
[INFO] [stdout] 229 | |     /// these are linked to the miniz ones rather than
[INFO] [stdout] 230 | |     /// picking up the rust versions (as they may be exported).
[INFO] [stdout]     | |_______________________________________________________________^
[INFO] [stdout] 231 |       #[link(name = "miniz", kind = "static")]
[INFO] [stdout] 232 | /     extern "C" {
[INFO] [stdout] 233 | |         fn tinfl_decompress_mem_to_heap(
[INFO] [stdout] 234 | |             src_buf: *const c_void,
[INFO] [stdout] 235 | |             src_buf_len: usize,
[INFO] [stdout] ...   |
[INFO] [stdout] 245 | |         ) -> *mut c_void;
[INFO] [stdout] 246 | |     }
[INFO] [stdout]     | |_____- rustdoc does not generate documentation for extern blocks
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` 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/tdef.rs:264:13
[INFO] [stdout]     |
[INFO] [stdout] 264 |             Box::from_raw(c);
[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] 264 |             let _ = Box::from_raw(c);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/tinfl.rs:225:13
[INFO] [stdout]     |
[INFO] [stdout] 225 |             Box::from_raw(c);
[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] 225 |             let _ = Box::from_raw(c);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.21s
[INFO] running `Command { std: "docker" "inspect" "70ae4d4ec52048026507c47c2013942b60f489edc9aa4a59ccbf39e69e8521e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70ae4d4ec52048026507c47c2013942b60f489edc9aa4a59ccbf39e69e8521e3", kill_on_drop: false }`
[INFO] [stdout] 70ae4d4ec52048026507c47c2013942b60f489edc9aa4a59ccbf39e69e8521e3