[INFO] cloning repository https://github.com/chinedu360/rust_file_decompresor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chinedu360/rust_file_decompresor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchinedu360%2Frust_file_decompresor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchinedu360%2Frust_file_decompresor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b02a4aa9dc7fb035e3bcd41e482f41824c3de451
[INFO] checking chinedu360/rust_file_decompresor against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchinedu360%2Frust_file_decompresor" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chinedu360/rust_file_decompresor 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 git repo https://github.com/chinedu360/rust_file_decompresor
[INFO] finished tweaking git repo https://github.com/chinedu360/rust_file_decompresor
[INFO] tweaked toml for git repo https://github.com/chinedu360/rust_file_decompresor written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/chinedu360/rust_file_decompresor 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] b368ed3c547a7220ff8b5ab661155cbc08158664c7e79e13516dc3c3e6da1603
[INFO] running `Command { std: "docker" "start" "-a" "b368ed3c547a7220ff8b5ab661155cbc08158664c7e79e13516dc3c3e6da1603", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b368ed3c547a7220ff8b5ab661155cbc08158664c7e79e13516dc3c3e6da1603", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b368ed3c547a7220ff8b5ab661155cbc08158664c7e79e13516dc3c3e6da1603", kill_on_drop: false }`
[INFO] [stdout] b368ed3c547a7220ff8b5ab661155cbc08158664c7e79e13516dc3c3e6da1603
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 124981f9ebe6005ecd6f36184a5d8240142bbb297c3ed34efc3511eca58558bc
[INFO] running `Command { std: "docker" "start" "-a" "124981f9ebe6005ecd6f36184a5d8240142bbb297c3ed34efc3511eca58558bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling zstd-safe v5.0.2+zstd.1.5.2
[INFO] [stderr]     Checking base64ct v1.6.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking time-core v0.1.1
[INFO] [stderr]     Checking deranged v0.3.7
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking flate2 v1.0.26
[INFO] [stderr]     Checking password-hash v0.4.2
[INFO] [stderr]     Checking time v0.3.25
[INFO] [stderr]    Compiling jobserver v0.1.26
[INFO] [stderr]    Compiling cc v1.0.82
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]    Compiling zstd-sys v2.0.8+zstd.1.5.5
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking inout v0.1.3
[INFO] [stderr]     Checking cipher v0.4.4
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking aes v0.8.3
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking sha2 v0.10.7
[INFO] [stderr]     Checking sha1 v0.10.5
[INFO] [stderr]     Checking pbkdf2 v0.11.0
[INFO] [stderr]     Checking bzip2 v0.4.4
[INFO] [stderr]     Checking zstd v0.11.2+zstd.1.5.2
[INFO] [stderr]     Checking zip v0.6.6
[INFO] [stderr]     Checking rust_file_decompresor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `zip` is imported redundantly
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use zip;
[INFO] [stdout]   |     ^^^ the item `zip` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `zip` is imported redundantly
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use zip;
[INFO] [stdout]   |     ^^^ the item `zip` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.93s
[INFO] running `Command { std: "docker" "inspect" "124981f9ebe6005ecd6f36184a5d8240142bbb297c3ed34efc3511eca58558bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "124981f9ebe6005ecd6f36184a5d8240142bbb297c3ed34efc3511eca58558bc", kill_on_drop: false }`
[INFO] [stdout] 124981f9ebe6005ecd6f36184a5d8240142bbb297c3ed34efc3511eca58558bc
[INFO] checking chinedu360/rust_file_decompresor against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchinedu360%2Frust_file_decompresor" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chinedu360/rust_file_decompresor on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/chinedu360/rust_file_decompresor
[INFO] finished tweaking git repo https://github.com/chinedu360/rust_file_decompresor
[INFO] tweaked toml for git repo https://github.com/chinedu360/rust_file_decompresor written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/chinedu360/rust_file_decompresor 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e0b144b8edf1782981d89f20938ce2af4d6c405fd04834262a4b184b0c417ee2
[INFO] running `Command { std: "docker" "start" "-a" "e0b144b8edf1782981d89f20938ce2af4d6c405fd04834262a4b184b0c417ee2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0b144b8edf1782981d89f20938ce2af4d6c405fd04834262a4b184b0c417ee2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0b144b8edf1782981d89f20938ce2af4d6c405fd04834262a4b184b0c417ee2", kill_on_drop: false }`
[INFO] [stdout] e0b144b8edf1782981d89f20938ce2af4d6c405fd04834262a4b184b0c417ee2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d89ce4c99b5f6f820af63ef4e625f3de07f1948aa61c0d4062457947c58da63c
[INFO] running `Command { std: "docker" "start" "-a" "d89ce4c99b5f6f820af63ef4e625f3de07f1948aa61c0d4062457947c58da63c", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling zstd-safe v5.0.2+zstd.1.5.2
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking base64ct v1.6.0
[INFO] [stderr]     Checking deranged v0.3.7
[INFO] [stderr]     Checking time-core v0.1.1
[INFO] [stderr]     Checking flate2 v1.0.26
[INFO] [stderr]     Checking password-hash v0.4.2
[INFO] [stderr]    Compiling jobserver v0.1.26
[INFO] [stderr]    Compiling cc v1.0.82
[INFO] [stderr]     Checking time v0.3.25
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]    Compiling zstd-sys v2.0.8+zstd.1.5.5
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking inout v0.1.3
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking cipher v0.4.4
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking sha2 v0.10.7
[INFO] [stderr]     Checking sha1 v0.10.5
[INFO] [stderr]     Checking aes v0.8.3
[INFO] [stderr]     Checking pbkdf2 v0.11.0
[INFO] [stderr]     Checking bzip2 v0.4.4
[INFO] [stderr]     Checking zstd v0.11.2+zstd.1.5.2
[INFO] [stderr]     Checking zip v0.6.6
[INFO] [stderr]     Checking rust_file_decompresor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `zip` is imported redundantly
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use zip;
[INFO] [stdout]   |     ^^^ the item `zip` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `zip` is imported redundantly
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use zip;
[INFO] [stdout]   |     ^^^ the item `zip` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.10s
[INFO] running `Command { std: "docker" "inspect" "d89ce4c99b5f6f820af63ef4e625f3de07f1948aa61c0d4062457947c58da63c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d89ce4c99b5f6f820af63ef4e625f3de07f1948aa61c0d4062457947c58da63c", kill_on_drop: false }`
[INFO] [stdout] d89ce4c99b5f6f820af63ef4e625f3de07f1948aa61c0d4062457947c58da63c