[INFO] fetching crate smol 0.3.3...
[INFO] checking smol-0.3.3 against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] extracting crate smol 0.3.3 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate smol 0.3.3 on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate smol 0.3.3
[INFO] finished tweaking crates.io crate smol 0.3.3
[INFO] tweaked toml for crates.io crate smol 0.3.3 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate smol 0.3.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f4253462900732bfc031bff49c2f0834b0d2496cdb3230351d442081105db11f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f4253462900732bfc031bff49c2f0834b0d2496cdb3230351d442081105db11f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4253462900732bfc031bff49c2f0834b0d2496cdb3230351d442081105db11f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4253462900732bfc031bff49c2f0834b0d2496cdb3230351d442081105db11f", kill_on_drop: false }`
[INFO] [stdout] f4253462900732bfc031bff49c2f0834b0d2496cdb3230351d442081105db11f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b03f3c85e9e36cc7645166c5a3e9c73e5f0d67938da68280d177c740ad52e1e3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b03f3c85e9e36cc7645166c5a3e9c73e5f0d67938da68280d177c740ad52e1e3", kill_on_drop: false }`
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[INFO] [stderr]     Checking smol v0.3.3 (/opt/rustwide/workdir)
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[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]     Checking smol v0.1.18
[INFO] [stderr]     Checking futures-executor v0.3.5
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[INFO] [stdout] warning: unused import: `smol::future`
[INFO] [stdout]  --> examples/ctrl-c.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use smol::future;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `tokio`
[INFO] [stdout]    --> examples/hyper-client.rs:125:6
[INFO] [stdout]     |
[INFO] [stdout] 125 | impl tokio::io::AsyncRead for SmolStream {
[INFO] [stdout]     |      ^^^^^ use of undeclared type or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `tokio`
[INFO] [stdout]    --> examples/hyper-client.rs:138:6
[INFO] [stdout]     |
[INFO] [stdout] 138 | impl tokio::io::AsyncWrite for SmolStream {
[INFO] [stdout]     |      ^^^^^ use of undeclared type or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `smol`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `tokio`
[INFO] [stdout]    --> examples/hyper-server.rs:140:6
[INFO] [stdout]     |
[INFO] [stdout] 140 | impl tokio::io::AsyncRead for SmolStream {
[INFO] [stdout]     |      ^^^^^ use of undeclared type or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `tokio`
[INFO] [stdout]    --> examples/hyper-server.rs:159:6
[INFO] [stdout]     |
[INFO] [stdout] 159 | impl tokio::io::AsyncWrite for SmolStream {
[INFO] [stdout]     |      ^^^^^ use of undeclared type or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `tokio`
[INFO] [stdout]   --> examples/other-runtimes.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         tokio::time::delay_for(Duration::from_secs(1)).await;
[INFO] [stdout]    |         ^^^^^ use of undeclared type or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "b03f3c85e9e36cc7645166c5a3e9c73e5f0d67938da68280d177c740ad52e1e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b03f3c85e9e36cc7645166c5a3e9c73e5f0d67938da68280d177c740ad52e1e3", kill_on_drop: false }`
[INFO] [stdout] b03f3c85e9e36cc7645166c5a3e9c73e5f0d67938da68280d177c740ad52e1e3