[INFO] cloning repository https://github.com/yuichietsu/rmdup
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yuichietsu/rmdup" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuichietsu%2Frmdup", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuichietsu%2Frmdup'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1d8e9ea763b6593fcd63d520aaa022b9f01211d1
[INFO] checking yuichietsu/rmdup against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuichietsu%2Frmdup" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yuichietsu/rmdup 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/yuichietsu/rmdup
[INFO] finished tweaking git repo https://github.com/yuichietsu/rmdup
[INFO] tweaked toml for git repo https://github.com/yuichietsu/rmdup written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/yuichietsu/rmdup 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lzxd v0.2.5
[INFO] [stderr]   Downloaded cab v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 4f2db2c9cec4ed689d22383546f08bd7cbd76049543a81c2c51d89b26e5a0454
[INFO] running `Command { std: "docker" "start" "-a" "4f2db2c9cec4ed689d22383546f08bd7cbd76049543a81c2c51d89b26e5a0454", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f2db2c9cec4ed689d22383546f08bd7cbd76049543a81c2c51d89b26e5a0454", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f2db2c9cec4ed689d22383546f08bd7cbd76049543a81c2c51d89b26e5a0454", kill_on_drop: false }`
[INFO] [stdout] 4f2db2c9cec4ed689d22383546f08bd7cbd76049543a81c2c51d89b26e5a0454
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] d383a1d27931a4b3b90fc608e25a68926e0baf3dc77152593330b9f4c73f6844
[INFO] running `Command { std: "docker" "start" "-a" "d383a1d27931a4b3b90fc608e25a68926e0baf3dc77152593330b9f4c73f6844", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]     Checking cpufeatures v0.2.12
[INFO] [stderr]    Compiling crc32fast v1.4.0
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling zstd-safe v5.0.2+zstd.1.5.2
[INFO] [stderr]     Checking powerfmt v0.2.0
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking deranged v0.3.11
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking base64ct v1.6.0
[INFO] [stderr]     Checking num-conv v0.1.0
[INFO] [stderr]    Compiling jobserver v0.1.28
[INFO] [stderr]     Checking time-core v0.1.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking password-hash v0.4.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking lzxd v0.2.5
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]     Checking time v0.3.34
[INFO] [stderr]     Checking cab v0.5.0
[INFO] [stderr]    Compiling zstd-sys v2.0.10+zstd.1.5.6
[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 sha2 v0.10.8
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]     Checking aes v0.8.4
[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 rmdup v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `cab` is imported redundantly
[INFO] [stdout]  --> src/archiver/cabinet.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use cab;
[INFO] [stdout]   |     ^^^ the item `cab` 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/archiver/zip.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use zip;
[INFO] [stdout]   |     ^^^ the item `zip` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `cab` is imported redundantly
[INFO] [stdout]  --> src/archiver/cabinet.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use cab;
[INFO] [stdout]   |     ^^^ the item `cab` 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/archiver/zip.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use zip;
[INFO] [stdout]   |     ^^^ the item `zip` is already defined by prelude
[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 24.58s
[INFO] running `Command { std: "docker" "inspect" "d383a1d27931a4b3b90fc608e25a68926e0baf3dc77152593330b9f4c73f6844", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d383a1d27931a4b3b90fc608e25a68926e0baf3dc77152593330b9f4c73f6844", kill_on_drop: false }`
[INFO] [stdout] d383a1d27931a4b3b90fc608e25a68926e0baf3dc77152593330b9f4c73f6844
[INFO] checking yuichietsu/rmdup against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuichietsu%2Frmdup" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yuichietsu/rmdup on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yuichietsu/rmdup
[INFO] finished tweaking git repo https://github.com/yuichietsu/rmdup
[INFO] tweaked toml for git repo https://github.com/yuichietsu/rmdup written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/yuichietsu/rmdup 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bf7b743e28de2e80d06feec996e6c58f2d41eeef72bd97674f7f6c4956d625e7
[INFO] running `Command { std: "docker" "start" "-a" "bf7b743e28de2e80d06feec996e6c58f2d41eeef72bd97674f7f6c4956d625e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf7b743e28de2e80d06feec996e6c58f2d41eeef72bd97674f7f6c4956d625e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf7b743e28de2e80d06feec996e6c58f2d41eeef72bd97674f7f6c4956d625e7", kill_on_drop: false }`
[INFO] [stdout] bf7b743e28de2e80d06feec996e6c58f2d41eeef72bd97674f7f6c4956d625e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0c3a7355c8b2aeddec28fa290a1bf521a9799ebb3b353a692be8186b48639ab
[INFO] running `Command { std: "docker" "start" "-a" "c0c3a7355c8b2aeddec28fa290a1bf521a9799ebb3b353a692be8186b48639ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]     Checking cpufeatures v0.2.12
[INFO] [stderr]    Compiling crc32fast v1.4.0
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking powerfmt v0.2.0
[INFO] [stderr]    Compiling zstd-safe v5.0.2+zstd.1.5.2
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking deranged v0.3.11
[INFO] [stderr]     Checking base64ct v1.6.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking time-core v0.1.2
[INFO] [stderr]     Checking num-conv v0.1.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking password-hash v0.4.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking lzxd v0.2.5
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling jobserver v0.1.28
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]     Checking time v0.3.34
[INFO] [stderr]     Checking cab v0.5.0
[INFO] [stderr]    Compiling zstd-sys v2.0.10+zstd.1.5.6
[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 v0.8.4
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking sha1 v0.10.6
[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 rmdup v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `cab` is imported redundantly
[INFO] [stdout]  --> src/archiver/cabinet.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use cab;
[INFO] [stdout]   |     ^^^ the item `cab` 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/archiver/zip.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use zip;
[INFO] [stdout]   |     ^^^ the item `zip` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `cab` is imported redundantly
[INFO] [stdout]  --> src/archiver/cabinet.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use cab;
[INFO] [stdout]   |     ^^^ the item `cab` 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/archiver/zip.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use zip;
[INFO] [stdout]   |     ^^^ the item `zip` is already defined by prelude
[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 26.28s
[INFO] running `Command { std: "docker" "inspect" "c0c3a7355c8b2aeddec28fa290a1bf521a9799ebb3b353a692be8186b48639ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0c3a7355c8b2aeddec28fa290a1bf521a9799ebb3b353a692be8186b48639ab", kill_on_drop: false }`
[INFO] [stdout] c0c3a7355c8b2aeddec28fa290a1bf521a9799ebb3b353a692be8186b48639ab