[INFO] cloning repository https://github.com/garbas/nix-installer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/garbas/nix-installer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgarbas%2Fnix-installer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgarbas%2Fnix-installer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] da00fe39cb0e0cd61a998923b89b49f1b3422299
[INFO] checking garbas/nix-installer against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgarbas%2Fnix-installer" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/garbas/nix-installer 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/garbas/nix-installer
[INFO] finished tweaking git repo https://github.com/garbas/nix-installer
[INFO] tweaked toml for git repo https://github.com/garbas/nix-installer written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/garbas/nix-installer 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 quote v1.0.12
[INFO] [stderr]   Downloaded simplelog v0.11.1
[INFO] [stderr]   Downloaded elf v0.0.10
[INFO] [stderr]   Downloaded clap-verbosity-flag v0.3.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 2f47e19ef2316209f0a32d6f55c27fb2567c2225498e1356d9116084a70c495a
[INFO] running `Command { std: "docker" "start" "-a" "2f47e19ef2316209f0a32d6f55c27fb2567c2225498e1356d9116084a70c495a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f47e19ef2316209f0a32d6f55c27fb2567c2225498e1356d9116084a70c495a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f47e19ef2316209f0a32d6f55c27fb2567c2225498e1356d9116084a70c495a", kill_on_drop: false }`
[INFO] [stdout] 2f47e19ef2316209f0a32d6f55c27fb2567c2225498e1356d9116084a70c495a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 0241a69ee59c29df422c14f98b0a894f1416c171184dcf71e5064f0ef97c94d7
[INFO] running `Command { std: "docker" "start" "-a" "0241a69ee59c29df422c14f98b0a894f1416c171184dcf71e5064f0ef97c94d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling quote v1.0.12
[INFO] [stderr]    Compiling syn v1.0.84
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]    Compiling anyhow v1.0.52
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking elf v0.0.10
[INFO] [stderr]    Compiling lzma-sys v0.1.17
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking filetime v0.2.15
[INFO] [stderr]     Checking xattr v0.2.2
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking tar v0.4.38
[INFO] [stderr]     Checking xz2 v0.1.6
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking simplelog v0.11.1
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.25
[INFO] [stderr]     Checking clap-verbosity-flag v0.3.2
[INFO] [stderr]     Checking nix-installer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `clap_verbosity_flag` is imported redundantly
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use clap_verbosity_flag;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^ the item `clap_verbosity_flag` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pause`
[INFO] [stdout]  --> src/main.rs:9:51
[INFO] [stdout]   |
[INFO] [stdout] 9 | use nix_installer::{extract_tarball, install_nix, pause};
[INFO] [stdout]   |                                                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `clap_verbosity_flag` is imported redundantly
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use clap_verbosity_flag;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^ the item `clap_verbosity_flag` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pause`
[INFO] [stdout]  --> src/main.rs:9:51
[INFO] [stdout]   |
[INFO] [stdout] 9 | use nix_installer::{extract_tarball, install_nix, pause};
[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 15.18s
[INFO] running `Command { std: "docker" "inspect" "0241a69ee59c29df422c14f98b0a894f1416c171184dcf71e5064f0ef97c94d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0241a69ee59c29df422c14f98b0a894f1416c171184dcf71e5064f0ef97c94d7", kill_on_drop: false }`
[INFO] [stdout] 0241a69ee59c29df422c14f98b0a894f1416c171184dcf71e5064f0ef97c94d7
[INFO] checking garbas/nix-installer against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgarbas%2Fnix-installer" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/garbas/nix-installer 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/garbas/nix-installer
[INFO] finished tweaking git repo https://github.com/garbas/nix-installer
[INFO] tweaked toml for git repo https://github.com/garbas/nix-installer written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/garbas/nix-installer 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 19f86d80d7a75684e01ab30ab9f1a0d44a09c69dc396762bd6466d51b270dea0
[INFO] running `Command { std: "docker" "start" "-a" "19f86d80d7a75684e01ab30ab9f1a0d44a09c69dc396762bd6466d51b270dea0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19f86d80d7a75684e01ab30ab9f1a0d44a09c69dc396762bd6466d51b270dea0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19f86d80d7a75684e01ab30ab9f1a0d44a09c69dc396762bd6466d51b270dea0", kill_on_drop: false }`
[INFO] [stdout] 19f86d80d7a75684e01ab30ab9f1a0d44a09c69dc396762bd6466d51b270dea0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 3deca36e4b802f0e66fa151de1fad5416b79867aa8bf6baa14b27cef7300a7e9
[INFO] running `Command { std: "docker" "start" "-a" "3deca36e4b802f0e66fa151de1fad5416b79867aa8bf6baa14b27cef7300a7e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling quote v1.0.12
[INFO] [stderr]    Compiling syn v1.0.84
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]    Compiling anyhow v1.0.52
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking elf v0.0.10
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking filetime v0.2.15
[INFO] [stderr]     Checking xattr v0.2.2
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking tar v0.4.38
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling lzma-sys v0.1.17
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking xz2 v0.1.6
[INFO] [stderr]     Checking simplelog v0.11.1
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.25
[INFO] [stderr]     Checking clap-verbosity-flag v0.3.2
[INFO] [stderr]     Checking nix-installer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `clap_verbosity_flag` is imported redundantly
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use clap_verbosity_flag;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^ the item `clap_verbosity_flag` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pause`
[INFO] [stdout]  --> src/main.rs:9:51
[INFO] [stdout]   |
[INFO] [stdout] 9 | use nix_installer::{extract_tarball, install_nix, pause};
[INFO] [stdout]   |                                                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `clap_verbosity_flag` is imported redundantly
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use clap_verbosity_flag;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^ the item `clap_verbosity_flag` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pause`
[INFO] [stdout]  --> src/main.rs:9:51
[INFO] [stdout]   |
[INFO] [stdout] 9 | use nix_installer::{extract_tarball, install_nix, pause};
[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 19.06s
[INFO] running `Command { std: "docker" "inspect" "3deca36e4b802f0e66fa151de1fad5416b79867aa8bf6baa14b27cef7300a7e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3deca36e4b802f0e66fa151de1fad5416b79867aa8bf6baa14b27cef7300a7e9", kill_on_drop: false }`
[INFO] [stdout] 3deca36e4b802f0e66fa151de1fad5416b79867aa8bf6baa14b27cef7300a7e9