[INFO] fetching crate f1-api 0.2.0...
[INFO] checking f1-api-0.2.0 against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] extracting crate f1-api 0.2.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate f1-api 0.2.0 on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate f1-api 0.2.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate f1-api 0.2.0
[INFO] tweaked toml for crates.io crate f1-api 0.2.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate f1-api 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f04d0b124fb19a65e92593830d929f2052d21ad8e9e5774ce0c0fbabbb6d8f4
[INFO] running `Command { std: "docker" "start" "-a" "8f04d0b124fb19a65e92593830d929f2052d21ad8e9e5774ce0c0fbabbb6d8f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f04d0b124fb19a65e92593830d929f2052d21ad8e9e5774ce0c0fbabbb6d8f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f04d0b124fb19a65e92593830d929f2052d21ad8e9e5774ce0c0fbabbb6d8f4", kill_on_drop: false }`
[INFO] [stdout] 8f04d0b124fb19a65e92593830d929f2052d21ad8e9e5774ce0c0fbabbb6d8f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d7e42edf67caf66e2270a43734107a4912ae89ecb7412e4590326e27d24299c
[INFO] running `Command { std: "docker" "start" "-a" "3d7e42edf67caf66e2270a43734107a4912ae89ecb7412e4590326e27d24299c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]     Checking futures-sink v0.3.15
[INFO] [stderr]     Checking assert_approx_eq v1.1.0
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling tokio v1.7.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling tokio-macros v1.2.0
[INFO] [stderr]    Compiling derive-new v0.5.9
[INFO] [stderr]    Compiling getset v0.1.1
[INFO] [stderr]     Checking tokio-stream v0.1.6
[INFO] [stderr]     Checking tokio-util v0.6.7
[INFO] [stderr]     Checking f1-api v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/codec.rs:45:19
[INFO] [stdout]    |
[INFO] [stdout] 45 |         if cursor.remaining() < 2 {
[INFO] [stdout]    |                   ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = help: call with fully qualified syntax `remaining(...)` to keep using the current method
[INFO] [stdout]    = help: add `#![feature(cursor_remaining)]` to the crate attributes to enable `std::io::Cursor::<T>::remaining`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/codec.rs:45:19
[INFO] [stdout]    |
[INFO] [stdout] 45 |         if cursor.remaining() < 2 {
[INFO] [stdout]    |                   ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = help: call with fully qualified syntax `remaining(...)` to keep using the current method
[INFO] [stdout]    = help: add `#![feature(cursor_remaining)]` to the crate attributes to enable `std::io::Cursor::<T>::remaining`
[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 [unoptimized + debuginfo] target(s) in 20.18s
[INFO] running `Command { std: "docker" "inspect" "3d7e42edf67caf66e2270a43734107a4912ae89ecb7412e4590326e27d24299c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d7e42edf67caf66e2270a43734107a4912ae89ecb7412e4590326e27d24299c", kill_on_drop: false }`
[INFO] [stdout] 3d7e42edf67caf66e2270a43734107a4912ae89ecb7412e4590326e27d24299c