[INFO] fetching crate callbag 0.14.0...
[INFO] checking callbag-0.14.0 against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] extracting crate callbag 0.14.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate callbag 0.14.0 on toolchain 80399064afa4a2cd153f30d02c25f7ea0383ed65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate callbag 0.14.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate callbag 0.14.0
[INFO] tweaked toml for crates.io crate callbag 0.14.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded test-log v0.2.15
[INFO] [stderr]   Downloaded wasm-bindgen-test-macro v0.3.42
[INFO] [stderr]   Downloaded blanket v0.2.0
[INFO] [stderr]   Downloaded send_wrapper v0.4.0
[INFO] [stderr]   Downloaded async_executors v0.5.1
[INFO] [stderr]   Downloaded async_nursery v0.4.1
[INFO] [stderr]   Downloaded test-log-macros v0.2.15
[INFO] [stderr]   Downloaded wasm-bindgen-test v0.3.42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ebf2368a07033209c93c049424cec5cb23392603e049945e7896330b614c5485
[INFO] running `Command { std: "docker" "start" "-a" "ebf2368a07033209c93c049424cec5cb23392603e049945e7896330b614c5485", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ebf2368a07033209c93c049424cec5cb23392603e049945e7896330b614c5485", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebf2368a07033209c93c049424cec5cb23392603e049945e7896330b614c5485", kill_on_drop: false }`
[INFO] [stdout] ebf2368a07033209c93c049424cec5cb23392603e049945e7896330b614c5485
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c833cb3f507fbe35f52d3118bd00910a5ef05eba3df29dfba82a844326dff2e4
[INFO] running `Command { std: "docker" "start" "-a" "c833cb3f507fbe35f52d3118bd00910a5ef05eba3df29dfba82a844326dff2e4", kill_on_drop: false }`
[INFO] [stderr]     Checking value-bag v1.8.1
[INFO] [stderr]    Compiling rustix v0.38.32
[INFO] [stderr]     Checking futures-lite v2.3.0
[INFO] [stderr]     Checking linux-raw-sys v0.4.13
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling polling v2.8.0
[INFO] [stderr]    Compiling rustix v0.37.27
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]    Compiling async-io v1.13.0
[INFO] [stderr]     Checking linux-raw-sys v0.3.8
[INFO] [stderr]     Checking event-listener v4.0.3
[INFO] [stderr]     Checking event-listener v5.2.0
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]     Checking event-listener v3.1.0
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]     Checking event-listener-strategy v0.5.0
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling async_executors v0.5.1
[INFO] [stderr]     Checking event-listener-strategy v0.4.0
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]    Compiling blanket v0.2.0
[INFO] [stderr]     Checking async-lock v3.3.0
[INFO] [stderr]     Checking async-channel v2.2.0
[INFO] [stderr]    Compiling async_nursery v0.4.1
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]    Compiling test-log-macros v0.2.15
[INFO] [stderr]     Checking never v0.1.0
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[INFO] [stderr]     Checking crossbeam-queue v0.3.11
[INFO] [stderr]     Checking blocking v1.5.1
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[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking test-log v0.2.15
[INFO] [stderr]     Checking polling v3.5.0
[INFO] [stderr]     Checking async-io v2.3.2
[INFO] [stderr]     Checking async-signal v0.2.5
[INFO] [stderr]     Checking async-global-executor v2.4.1
[INFO] [stderr]     Checking async-process v1.8.1
[INFO] [stderr]     Checking async-std v1.12.0
[INFO] [stderr]     Checking callbag v0.14.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `IntoIterator` is imported redundantly
[INFO] [stdout]  --> src/from_iter.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     iter::IntoIterator,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/prelude/mod.rs:129:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `IntoIterator` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `IntoIterator` is imported redundantly
[INFO] [stdout]  --> src/from_iter.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     iter::IntoIterator,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/prelude/mod.rs:129:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `IntoIterator` is already defined here
[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] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.99s
[INFO] running `Command { std: "docker" "inspect" "c833cb3f507fbe35f52d3118bd00910a5ef05eba3df29dfba82a844326dff2e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c833cb3f507fbe35f52d3118bd00910a5ef05eba3df29dfba82a844326dff2e4", kill_on_drop: false }`
[INFO] [stdout] c833cb3f507fbe35f52d3118bd00910a5ef05eba3df29dfba82a844326dff2e4
