[INFO] cloning repository https://github.com/Yoeori/async-oncecell
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Yoeori/async-oncecell" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYoeori%2Fasync-oncecell", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYoeori%2Fasync-oncecell'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1e5e49f033079818535dc91cce45c9607b9893ae
[INFO] checking Yoeori/async-oncecell against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYoeori%2Fasync-oncecell" "/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/Yoeori/async-oncecell on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Yoeori/async-oncecell
[INFO] finished tweaking git repo https://github.com/Yoeori/async-oncecell
[INFO] tweaked toml for git repo https://github.com/Yoeori/async-oncecell written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Yoeori/async-oncecell 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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] [stderr]     Updating async-oncecell v0.1.0 (/workspace/builds/worker-1-tc1/source) -> v0.2.0
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-stream-impl v0.3.0
[INFO] [stderr]   Downloaded tokio-test v0.4.1
[INFO] [stderr]   Downloaded async-stream v0.3.0
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0298005b90e301c13e23c7072cf7b966af6f98c5b5a35af5b25ac6e6f3728e17
[INFO] running `Command { std: "docker" "start" "-a" "0298005b90e301c13e23c7072cf7b966af6f98c5b5a35af5b25ac6e6f3728e17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0298005b90e301c13e23c7072cf7b966af6f98c5b5a35af5b25ac6e6f3728e17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0298005b90e301c13e23c7072cf7b966af6f98c5b5a35af5b25ac6e6f3728e17", kill_on_drop: false }`
[INFO] [stdout] 0298005b90e301c13e23c7072cf7b966af6f98c5b5a35af5b25ac6e6f3728e17
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0096fbd65adc5cba3ec37f332d89cd86ec05825c04479d008c4ada741fbc9696
[INFO] running `Command { std: "docker" "start" "-a" "0096fbd65adc5cba3ec37f332d89cd86ec05825c04479d008c4ada741fbc9696", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.68
[INFO] [stderr]     Checking futures-core v0.3.13
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking futures-sink v0.3.13
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking futures-task v0.3.13
[INFO] [stderr]     Checking futures-io v0.3.13
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking futures-channel v0.3.13
[INFO] [stderr]    Compiling tokio v1.4.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling async-stream-impl v0.3.0
[INFO] [stderr]     Checking async-stream v0.3.0
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]     Checking tokio-stream v0.1.5
[INFO] [stderr]     Checking tokio-test v0.4.1
[INFO] [stderr]     Checking futures-executor v0.3.13
[INFO] [stderr]     Checking futures v0.3.13
[INFO] [stderr]     Checking async-oncecell v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/lib.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |             Err(_) => unreachable!(),
[INFO] [stdout]    |             ^^^^^^ matches no values because `Infallible` is uninhabited
[INFO] [stdout]    |
[INFO] [stdout]    = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/lib.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |             Err(_) => unreachable!(),
[INFO] [stdout]    |             ^^^^^^ matches no values because `Infallible` is uninhabited
[INFO] [stdout]    |
[INFO] [stdout]    = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` 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 12.58s
[INFO] running `Command { std: "docker" "inspect" "0096fbd65adc5cba3ec37f332d89cd86ec05825c04479d008c4ada741fbc9696", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0096fbd65adc5cba3ec37f332d89cd86ec05825c04479d008c4ada741fbc9696", kill_on_drop: false }`
[INFO] [stdout] 0096fbd65adc5cba3ec37f332d89cd86ec05825c04479d008c4ada741fbc9696
[INFO] checking Yoeori/async-oncecell against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYoeori%2Fasync-oncecell" "/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/Yoeori/async-oncecell on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Yoeori/async-oncecell
[INFO] finished tweaking git repo https://github.com/Yoeori/async-oncecell
[INFO] tweaked toml for git repo https://github.com/Yoeori/async-oncecell written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Yoeori/async-oncecell 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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] [stderr]     Updating async-oncecell v0.1.0 (/workspace/builds/worker-1-tc2/source) -> v0.2.0
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e4ee14f67f27a07c5f78f6e5ad8a471a8ed6448f43fb53ebcd5e91d9304a7d93
[INFO] running `Command { std: "docker" "start" "-a" "e4ee14f67f27a07c5f78f6e5ad8a471a8ed6448f43fb53ebcd5e91d9304a7d93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4ee14f67f27a07c5f78f6e5ad8a471a8ed6448f43fb53ebcd5e91d9304a7d93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4ee14f67f27a07c5f78f6e5ad8a471a8ed6448f43fb53ebcd5e91d9304a7d93", kill_on_drop: false }`
[INFO] [stdout] e4ee14f67f27a07c5f78f6e5ad8a471a8ed6448f43fb53ebcd5e91d9304a7d93
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bfc461ca14682bd2549ca91cf98820e589440ea09b10d4f1050985bad7969344
[INFO] running `Command { std: "docker" "start" "-a" "bfc461ca14682bd2549ca91cf98820e589440ea09b10d4f1050985bad7969344", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.68
[INFO] [stderr]     Checking futures-core v0.3.13
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking futures-sink v0.3.13
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking futures-task v0.3.13
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking futures-io v0.3.13
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking futures-channel v0.3.13
[INFO] [stderr]    Compiling tokio v1.4.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling async-stream-impl v0.3.0
[INFO] [stderr]     Checking async-stream v0.3.0
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]     Checking tokio-stream v0.1.5
[INFO] [stderr]     Checking tokio-test v0.4.1
[INFO] [stderr]     Checking futures-executor v0.3.13
[INFO] [stderr]     Checking futures v0.3.13
[INFO] [stderr]     Checking async-oncecell v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/lib.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |             Err(_) => unreachable!(),
[INFO] [stdout]    |             ^^^^^^ matches no values because `Infallible` is uninhabited
[INFO] [stdout]    |
[INFO] [stdout]    = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/lib.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |             Err(_) => unreachable!(),
[INFO] [stdout]    |             ^^^^^^ matches no values because `Infallible` is uninhabited
[INFO] [stdout]    |
[INFO] [stdout]    = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` 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 12.98s
[INFO] running `Command { std: "docker" "inspect" "bfc461ca14682bd2549ca91cf98820e589440ea09b10d4f1050985bad7969344", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfc461ca14682bd2549ca91cf98820e589440ea09b10d4f1050985bad7969344", kill_on_drop: false }`
[INFO] [stdout] bfc461ca14682bd2549ca91cf98820e589440ea09b10d4f1050985bad7969344