[INFO] cloning repository https://github.com/urbit/io_drivers [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/urbit/io_drivers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Furbit%2Fio_drivers", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Furbit%2Fio_drivers'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e0ac358c8eeaa9872102df370585f87117d6ddf0 [INFO] checking urbit/io_drivers against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Furbit%2Fio_drivers" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/urbit/io_drivers 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/urbit/io_drivers [INFO] finished tweaking git repo https://github.com/urbit/io_drivers [INFO] tweaked toml for git repo https://github.com/urbit/io_drivers written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/urbit/io_drivers 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 git repository `https://github.com/urbit/noun.git` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded time-macros v0.2.5 [INFO] [stderr] Downloaded time v0.3.16 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] e4f382c8a3f62c37d36ffc8a323683c42b5362bb354e3246fd19dfcdf36f5ce1 [INFO] running `Command { std: "docker" "start" "-a" "e4f382c8a3f62c37d36ffc8a323683c42b5362bb354e3246fd19dfcdf36f5ce1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e4f382c8a3f62c37d36ffc8a323683c42b5362bb354e3246fd19dfcdf36f5ce1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e4f382c8a3f62c37d36ffc8a323683c42b5362bb354e3246fd19dfcdf36f5ce1", kill_on_drop: false }` [INFO] [stdout] e4f382c8a3f62c37d36ffc8a323683c42b5362bb354e3246fd19dfcdf36f5ce1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] fda14c7bbe6366632be45fee72e4afe3350f60f81dcaff294a0083b9c99efd3d [INFO] running `Command { std: "docker" "start" "-a" "fda14c7bbe6366632be45fee72e4afe3350f60f81dcaff294a0083b9c99efd3d", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.132 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Checking once_cell v1.14.0 [INFO] [stderr] Checking bytes v1.2.1 [INFO] [stderr] Checking itoa v1.0.3 [INFO] [stderr] Compiling futures-core v0.3.24 [INFO] [stderr] Compiling futures-task v0.3.24 [INFO] [stderr] Compiling futures-channel v0.3.24 [INFO] [stderr] Compiling ring v0.16.20 [INFO] [stderr] Compiling tokio v1.21.1 [INFO] [stderr] Compiling futures-util v0.3.24 [INFO] [stderr] Compiling rustls v0.20.6 [INFO] [stderr] Compiling time-core v0.1.0 [INFO] [stderr] Checking rustls-pemfile v1.0.1 [INFO] [stderr] Checking num_threads v0.1.6 [INFO] [stderr] Compiling time-macros v0.2.5 [INFO] [stderr] Checking noun v0.1.0 (https://github.com/urbit/noun.git?branch=master#64c271f5) [INFO] [stderr] Checking rustls-native-certs v0.6.2 [INFO] [stderr] Checking tracing-core v0.1.29 [INFO] [stderr] Checking http v0.2.8 [INFO] [stderr] Checking want v0.3.0 [INFO] [stderr] Checking tracing v0.1.36 [INFO] [stderr] Checking mio v0.8.4 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking socket2 v0.4.7 [INFO] [stderr] Checking time v0.3.16 [INFO] [stderr] Checking http-body v0.4.5 [INFO] [stderr] Checking simplelog v0.12.0 [INFO] [stderr] Checking webpki v0.22.0 [INFO] [stderr] Checking sct v0.7.0 [INFO] [stderr] Checking hyper v0.14.20 [INFO] [stderr] Checking tokio-rustls v0.23.4 [INFO] [stderr] Checking hyper-rustls v0.23.0 [INFO] [stderr] Checking io_drivers v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Send` is imported redundantly [INFO] [stdout] --> src/lib.rs:87:14 [INFO] [stdout] | [INFO] [stdout] 87 | marker::{Send, Unpin}, [INFO] [stdout] | ^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Send` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Unpin` is imported redundantly [INFO] [stdout] --> src/lib.rs:87:20 [INFO] [stdout] | [INFO] [stdout] 87 | marker::{Send, Unpin}, [INFO] [stdout] | ^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Unpin` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `tokio` is imported redundantly [INFO] [stdout] --> src/lib.rs:91:5 [INFO] [stdout] | [INFO] [stdout] 91 | self, [INFO] [stdout] | ^^^^ the item `tokio` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Send` is imported redundantly [INFO] [stdout] --> src/lib.rs:87:14 [INFO] [stdout] | [INFO] [stdout] 87 | marker::{Send, Unpin}, [INFO] [stdout] | ^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Send` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Unpin` is imported redundantly [INFO] [stdout] --> src/lib.rs:87:20 [INFO] [stdout] | [INFO] [stdout] 87 | marker::{Send, Unpin}, [INFO] [stdout] | ^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Unpin` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `tokio` is imported redundantly [INFO] [stdout] --> src/lib.rs:91:5 [INFO] [stdout] | [INFO] [stdout] 91 | self, [INFO] [stdout] | ^^^^ the item `tokio` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.74s [INFO] running `Command { std: "docker" "inspect" "fda14c7bbe6366632be45fee72e4afe3350f60f81dcaff294a0083b9c99efd3d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fda14c7bbe6366632be45fee72e4afe3350f60f81dcaff294a0083b9c99efd3d", kill_on_drop: false }` [INFO] [stdout] fda14c7bbe6366632be45fee72e4afe3350f60f81dcaff294a0083b9c99efd3d [INFO] checking urbit/io_drivers against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Furbit%2Fio_drivers" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/urbit/io_drivers 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/urbit/io_drivers [INFO] finished tweaking git repo https://github.com/urbit/io_drivers [INFO] tweaked toml for git repo https://github.com/urbit/io_drivers written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/urbit/io_drivers 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 9f484831f346313be17d5de8d183fbe6aad0551d396a7a3267b86197509e155b [INFO] running `Command { std: "docker" "start" "-a" "9f484831f346313be17d5de8d183fbe6aad0551d396a7a3267b86197509e155b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9f484831f346313be17d5de8d183fbe6aad0551d396a7a3267b86197509e155b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9f484831f346313be17d5de8d183fbe6aad0551d396a7a3267b86197509e155b", kill_on_drop: false }` [INFO] [stdout] 9f484831f346313be17d5de8d183fbe6aad0551d396a7a3267b86197509e155b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] ce1568eaa66d766b254e522f3c29de70dcb74c749cb0a7b4c15b87806a49cf6e [INFO] running `Command { std: "docker" "start" "-a" "ce1568eaa66d766b254e522f3c29de70dcb74c749cb0a7b4c15b87806a49cf6e", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.132 [INFO] [stderr] Checking once_cell v1.14.0 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Checking itoa v1.0.3 [INFO] [stderr] Checking bytes v1.2.1 [INFO] [stderr] Compiling futures-core v0.3.24 [INFO] [stderr] Compiling futures-task v0.3.24 [INFO] [stderr] Compiling rustls v0.20.6 [INFO] [stderr] Compiling futures-channel v0.3.24 [INFO] [stderr] Compiling ring v0.16.20 [INFO] [stderr] Compiling tokio v1.21.1 [INFO] [stderr] Compiling futures-util v0.3.24 [INFO] [stderr] Compiling time-core v0.1.0 [INFO] [stderr] Checking rustls-pemfile v1.0.1 [INFO] [stderr] Checking num_threads v0.1.6 [INFO] [stderr] Checking noun v0.1.0 (https://github.com/urbit/noun.git?branch=master#64c271f5) [INFO] [stderr] Checking rustls-native-certs v0.6.2 [INFO] [stderr] Compiling time-macros v0.2.5 [INFO] [stderr] Checking tracing-core v0.1.29 [INFO] [stderr] Checking want v0.3.0 [INFO] [stderr] Checking http v0.2.8 [INFO] [stderr] Checking tracing v0.1.36 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking mio v0.8.4 [INFO] [stderr] Checking socket2 v0.4.7 [INFO] [stderr] Checking time v0.3.16 [INFO] [stderr] Checking http-body v0.4.5 [INFO] [stderr] Checking simplelog v0.12.0 [INFO] [stderr] Checking webpki v0.22.0 [INFO] [stderr] Checking sct v0.7.0 [INFO] [stderr] Checking hyper v0.14.20 [INFO] [stderr] Checking tokio-rustls v0.23.4 [INFO] [stderr] Checking hyper-rustls v0.23.0 [INFO] [stderr] Checking io_drivers v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Send` is imported redundantly [INFO] [stdout] --> src/lib.rs:87:14 [INFO] [stdout] | [INFO] [stdout] 87 | marker::{Send, Unpin}, [INFO] [stdout] | ^^^^ [INFO] [stdout] --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Send` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Unpin` is imported redundantly [INFO] [stdout] --> src/lib.rs:87:20 [INFO] [stdout] | [INFO] [stdout] 87 | marker::{Send, Unpin}, [INFO] [stdout] | ^^^^^ [INFO] [stdout] --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Unpin` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `tokio` is imported redundantly [INFO] [stdout] --> src/lib.rs:91:5 [INFO] [stdout] | [INFO] [stdout] 91 | self, [INFO] [stdout] | ^^^^ the item `tokio` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Send` is imported redundantly [INFO] [stdout] --> src/lib.rs:87:14 [INFO] [stdout] | [INFO] [stdout] 87 | marker::{Send, Unpin}, [INFO] [stdout] | ^^^^ [INFO] [stdout] --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Send` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Unpin` is imported redundantly [INFO] [stdout] --> src/lib.rs:87:20 [INFO] [stdout] | [INFO] [stdout] 87 | marker::{Send, Unpin}, [INFO] [stdout] | ^^^^^ [INFO] [stdout] --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Unpin` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `tokio` is imported redundantly [INFO] [stdout] --> src/lib.rs:91:5 [INFO] [stdout] | [INFO] [stdout] 91 | self, [INFO] [stdout] | ^^^^ the item `tokio` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.82s [INFO] running `Command { std: "docker" "inspect" "ce1568eaa66d766b254e522f3c29de70dcb74c749cb0a7b4c15b87806a49cf6e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ce1568eaa66d766b254e522f3c29de70dcb74c749cb0a7b4c15b87806a49cf6e", kill_on_drop: false }` [INFO] [stdout] ce1568eaa66d766b254e522f3c29de70dcb74c749cb0a7b4c15b87806a49cf6e