[INFO] fetching crate devbox-build 0.1.1...
[INFO] checking devbox-build-0.1.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate devbox-build 0.1.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate devbox-build 0.1.1 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 devbox-build 0.1.1
[INFO] finished tweaking crates.io crate devbox-build 0.1.1
[INFO] tweaked toml for crates.io crate devbox-build 0.1.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate devbox-build 0.1.1 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded globset v0.4.6
[INFO] [stderr]   Downloaded getrandom v0.1.15
[INFO] [stderr]   Downloaded syn v1.0.55
[INFO] [stderr]   Downloaded bstr v0.2.14
[INFO] [stderr]   Downloaded devbox-test-args v0.1.2
[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] 00c7c6e37e4e554cc9cc8a911d6dcdcc375abebac233cc4f1939e0762a922027
[INFO] running `Command { std: "docker" "start" "-a" "00c7c6e37e4e554cc9cc8a911d6dcdcc375abebac233cc4f1939e0762a922027", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00c7c6e37e4e554cc9cc8a911d6dcdcc375abebac233cc4f1939e0762a922027", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00c7c6e37e4e554cc9cc8a911d6dcdcc375abebac233cc4f1939e0762a922027", kill_on_drop: false }`
[INFO] [stdout] 00c7c6e37e4e554cc9cc8a911d6dcdcc375abebac233cc4f1939e0762a922027
[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] 2ef2874babccc329ed7fb6a1e8e72c61922499661193495a6b43036dca6998f7
[INFO] running `Command { std: "docker" "start" "-a" "2ef2874babccc329ed7fb6a1e8e72c61922499661193495a6b43036dca6998f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling syn v1.0.55
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking filetime v0.2.13
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking globset v0.4.6
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking devbox-build v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `File`, `Unit`
[INFO] [stdout]  --> src/build.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use super::fs::{File, Dir, Unit};
[INFO] [stdout]   |                     ^^^^       ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Resource`, `Set`
[INFO] [stdout]  --> src/build.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use super::res::{Resource, Set};
[INFO] [stdout]   |                      ^^^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling devbox-test-args v0.1.2
[INFO] [stdout] warning: unused imports: `File`, `Unit`
[INFO] [stdout]  --> src/build.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use super::fs::{File, Dir, Unit};
[INFO] [stdout]   |                     ^^^^       ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Resource`, `Set`
[INFO] [stdout]  --> src/build.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use super::res::{Resource, Set};
[INFO] [stdout]   |                      ^^^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.44s
[INFO] running `Command { std: "docker" "inspect" "2ef2874babccc329ed7fb6a1e8e72c61922499661193495a6b43036dca6998f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ef2874babccc329ed7fb6a1e8e72c61922499661193495a6b43036dca6998f7", kill_on_drop: false }`
[INFO] [stdout] 2ef2874babccc329ed7fb6a1e8e72c61922499661193495a6b43036dca6998f7
[INFO] checking devbox-build-0.1.1 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate devbox-build 0.1.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate devbox-build 0.1.1 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 crates.io crate devbox-build 0.1.1
[INFO] finished tweaking crates.io crate devbox-build 0.1.1
[INFO] tweaked toml for crates.io crate devbox-build 0.1.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate devbox-build 0.1.1 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d3903fd486239200ec7232020e4850f1d40394f50cc3ed59c7609b663f2840d6
[INFO] running `Command { std: "docker" "start" "-a" "d3903fd486239200ec7232020e4850f1d40394f50cc3ed59c7609b663f2840d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3903fd486239200ec7232020e4850f1d40394f50cc3ed59c7609b663f2840d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3903fd486239200ec7232020e4850f1d40394f50cc3ed59c7609b663f2840d6", kill_on_drop: false }`
[INFO] [stdout] d3903fd486239200ec7232020e4850f1d40394f50cc3ed59c7609b663f2840d6
[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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ea18b5b9f16e987341383a7f3cf2e210f1f041d49418fd155e0c046251d384d
[INFO] running `Command { std: "docker" "start" "-a" "0ea18b5b9f16e987341383a7f3cf2e210f1f041d49418fd155e0c046251d384d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling syn v1.0.55
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking filetime v0.2.13
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking globset v0.4.6
[INFO] [stderr]     Checking devbox-build v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `File`, `Unit`
[INFO] [stdout]  --> src/build.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use super::fs::{File, Dir, Unit};
[INFO] [stdout]   |                     ^^^^       ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Resource`, `Set`
[INFO] [stdout]  --> src/build.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use super::res::{Resource, Set};
[INFO] [stdout]   |                      ^^^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling devbox-test-args v0.1.2
[INFO] [stdout] warning: unused imports: `File`, `Unit`
[INFO] [stdout]  --> src/build.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use super::fs::{File, Dir, Unit};
[INFO] [stdout]   |                     ^^^^       ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Resource`, `Set`
[INFO] [stdout]  --> src/build.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use super::res::{Resource, Set};
[INFO] [stdout]   |                      ^^^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.80s
[INFO] running `Command { std: "docker" "inspect" "0ea18b5b9f16e987341383a7f3cf2e210f1f041d49418fd155e0c046251d384d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ea18b5b9f16e987341383a7f3cf2e210f1f041d49418fd155e0c046251d384d", kill_on_drop: false }`
[INFO] [stdout] 0ea18b5b9f16e987341383a7f3cf2e210f1f041d49418fd155e0c046251d384d