[INFO] fetching crate pipe-op 0.0.1...
[INFO] checking pipe-op-0.0.1 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] extracting crate pipe-op 0.0.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate pipe-op 0.0.1 on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pipe-op 0.0.1
[INFO] finished tweaking crates.io crate pipe-op 0.0.1
[INFO] tweaked toml for crates.io crate pipe-op 0.0.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 33de0da2a64b0b0bc48286fa7c65742f5e356d3c0ec0e0f174c38733277b660c
[INFO] running `Command { std: "docker" "start" "-a" "33de0da2a64b0b0bc48286fa7c65742f5e356d3c0ec0e0f174c38733277b660c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33de0da2a64b0b0bc48286fa7c65742f5e356d3c0ec0e0f174c38733277b660c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33de0da2a64b0b0bc48286fa7c65742f5e356d3c0ec0e0f174c38733277b660c", kill_on_drop: false }`
[INFO] [stdout] 33de0da2a64b0b0bc48286fa7c65742f5e356d3c0ec0e0f174c38733277b660c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2453a20f3dc6685c7a8110297e112a278763b7729a62ed5b391cfe24d1da70e
[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" "f2453a20f3dc6685c7a8110297e112a278763b7729a62ed5b391cfe24d1da70e", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking proc-macro2 v1.0.28
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking pipe-op v0.0.1 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]    Compiling serde_derive v1.0.128
[INFO] [stderr]     Checking serde v1.0.128
[INFO] [stderr]     Checking serde_json v1.0.66
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking trybuild v1.0.45
[INFO] [stderr]    Migrating tests/method.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/async.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/await-try.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/basic.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/many.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/progress.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/multiple.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/try.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/chaining.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/closure.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/helpers.rs from 2018 edition to 2021
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.29s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling pipe-op v0.0.1 (/tmp/fixit)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.63s
[INFO] running `Command { std: "docker" "inspect" "f2453a20f3dc6685c7a8110297e112a278763b7729a62ed5b391cfe24d1da70e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2453a20f3dc6685c7a8110297e112a278763b7729a62ed5b391cfe24d1da70e", kill_on_drop: false }`
[INFO] [stdout] f2453a20f3dc6685c7a8110297e112a278763b7729a62ed5b391cfe24d1da70e