[INFO] cloning repository https://github.com/joshuapeters/rs-archiver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/joshuapeters/rs-archiver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoshuapeters%2Frs-archiver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoshuapeters%2Frs-archiver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4e4a812a5a1e7da768ca493a9a21d8244ffa7462
[INFO] checking joshuapeters/rs-archiver against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoshuapeters%2Frs-archiver" "/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/joshuapeters/rs-archiver 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/joshuapeters/rs-archiver
[INFO] finished tweaking git repo https://github.com/joshuapeters/rs-archiver
[INFO] tweaked toml for git repo https://github.com/joshuapeters/rs-archiver written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/joshuapeters/rs-archiver 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded base64ct v1.5.3
[INFO] [stderr]   Downloaded zip v0.6.3
[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] 4d6a56d28248faa7900ddb5052aae2b027f513e0830b4637f3ddc77f8aaada71
[INFO] running `Command { std: "docker" "start" "-a" "4d6a56d28248faa7900ddb5052aae2b027f513e0830b4637f3ddc77f8aaada71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d6a56d28248faa7900ddb5052aae2b027f513e0830b4637f3ddc77f8aaada71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d6a56d28248faa7900ddb5052aae2b027f513e0830b4637f3ddc77f8aaada71", kill_on_drop: false }`
[INFO] [stdout] 4d6a56d28248faa7900ddb5052aae2b027f513e0830b4637f3ddc77f8aaada71
[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] bd61a6b0c032c1c809b63a5ca6072404fe56070eee35aa5e17982cf9725ce6ba
[INFO] running `Command { std: "docker" "start" "-a" "bd61a6b0c032c1c809b63a5ca6072404fe56070eee35aa5e17982cf9725ce6ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking cpufeatures v0.2.5
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling zstd-safe v5.0.2+zstd.1.5.2
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking base64ct v1.5.3
[INFO] [stderr]    Compiling time-core v0.1.0
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]     Checking miniz_oxide v0.5.4
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]    Compiling time-macros v0.2.6
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking password-hash v0.4.2
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]    Compiling jobserver v0.1.25
[INFO] [stderr]     Checking time v0.3.17
[INFO] [stderr]    Compiling cc v1.0.74
[INFO] [stderr]    Compiling zstd-sys v2.0.1+zstd.1.5.2
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]     Checking block-buffer v0.10.3
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking cipher v0.3.0
[INFO] [stderr]     Checking digest v0.10.5
[INFO] [stderr]     Checking aes v0.7.5
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking sha2 v0.10.6
[INFO] [stderr]     Checking sha1 v0.10.5
[INFO] [stderr]     Checking pbkdf2 v0.11.0
[INFO] [stderr]     Checking bzip2 v0.4.3
[INFO] [stderr]     Checking zstd v0.11.2+zstd.1.5.2
[INFO] [stderr]     Checking zip v0.6.3
[INFO] [stderr]     Checking rs-archiver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `DirEntry`
[INFO] [stdout]  --> src/main.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | use walkdir::{DirEntry, WalkDir};
[INFO] [stdout]   |               ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `DirEntry`
[INFO] [stdout]  --> src/main.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | use walkdir::{DirEntry, WalkDir};
[INFO] [stdout]   |               ^^^^^^^^
[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 34.77s
[INFO] running `Command { std: "docker" "inspect" "bd61a6b0c032c1c809b63a5ca6072404fe56070eee35aa5e17982cf9725ce6ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd61a6b0c032c1c809b63a5ca6072404fe56070eee35aa5e17982cf9725ce6ba", kill_on_drop: false }`
[INFO] [stdout] bd61a6b0c032c1c809b63a5ca6072404fe56070eee35aa5e17982cf9725ce6ba
[INFO] checking joshuapeters/rs-archiver against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoshuapeters%2Frs-archiver" "/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/joshuapeters/rs-archiver 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/joshuapeters/rs-archiver
[INFO] finished tweaking git repo https://github.com/joshuapeters/rs-archiver
[INFO] tweaked toml for git repo https://github.com/joshuapeters/rs-archiver written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/joshuapeters/rs-archiver 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] ff38ee5d584b930869ceaa7a4a303c7ca5eaf72c492ee48bcd29c55358c5ab0c
[INFO] running `Command { std: "docker" "start" "-a" "ff38ee5d584b930869ceaa7a4a303c7ca5eaf72c492ee48bcd29c55358c5ab0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff38ee5d584b930869ceaa7a4a303c7ca5eaf72c492ee48bcd29c55358c5ab0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff38ee5d584b930869ceaa7a4a303c7ca5eaf72c492ee48bcd29c55358c5ab0c", kill_on_drop: false }`
[INFO] [stdout] ff38ee5d584b930869ceaa7a4a303c7ca5eaf72c492ee48bcd29c55358c5ab0c
[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] 9f9fb83c36c018f477e52b4f328e5d9a256f3d75d34cbf3b8fea9ec27b3c0f5a
[INFO] running `Command { std: "docker" "start" "-a" "9f9fb83c36c018f477e52b4f328e5d9a256f3d75d34cbf3b8fea9ec27b3c0f5a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]     Checking cpufeatures v0.2.5
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling zstd-safe v5.0.2+zstd.1.5.2
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking base64ct v1.5.3
[INFO] [stderr]    Compiling time-core v0.1.0
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking miniz_oxide v0.5.4
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]    Compiling time-macros v0.2.6
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]     Checking password-hash v0.4.2
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]    Compiling jobserver v0.1.25
[INFO] [stderr]    Compiling cc v1.0.74
[INFO] [stderr]     Checking time v0.3.17
[INFO] [stderr]    Compiling zstd-sys v2.0.1+zstd.1.5.2
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]     Checking block-buffer v0.10.3
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking cipher v0.3.0
[INFO] [stderr]     Checking aes v0.7.5
[INFO] [stderr]     Checking digest v0.10.5
[INFO] [stderr]     Checking sha2 v0.10.6
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking sha1 v0.10.5
[INFO] [stderr]     Checking pbkdf2 v0.11.0
[INFO] [stderr]     Checking bzip2 v0.4.3
[INFO] [stderr]     Checking zstd v0.11.2+zstd.1.5.2
[INFO] [stderr]     Checking zip v0.6.3
[INFO] [stderr]     Checking rs-archiver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `DirEntry`
[INFO] [stdout]  --> src/main.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | use walkdir::{DirEntry, WalkDir};
[INFO] [stdout]   |               ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `DirEntry`
[INFO] [stdout]  --> src/main.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | use walkdir::{DirEntry, WalkDir};
[INFO] [stdout]   |               ^^^^^^^^
[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 34.02s
[INFO] running `Command { std: "docker" "inspect" "9f9fb83c36c018f477e52b4f328e5d9a256f3d75d34cbf3b8fea9ec27b3c0f5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f9fb83c36c018f477e52b4f328e5d9a256f3d75d34cbf3b8fea9ec27b3c0f5a", kill_on_drop: false }`
[INFO] [stdout] 9f9fb83c36c018f477e52b4f328e5d9a256f3d75d34cbf3b8fea9ec27b3c0f5a