[INFO] fetching crate minicbor 0.10.1...
[INFO] checking minicbor-0.10.1 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] extracting crate minicbor 0.10.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate minicbor 0.10.1 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 minicbor 0.10.1
[INFO] finished tweaking crates.io crate minicbor 0.10.1
[INFO] tweaked toml for crates.io crate minicbor 0.10.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate minicbor 0.10.1 already has a lockfile, it will not be regenerated
[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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 9b948956f2ed8919a8fb30bad5e8e40d5866517f894a42980b7ee8487e490127
[INFO] running `Command { std: "docker" "start" "-a" "9b948956f2ed8919a8fb30bad5e8e40d5866517f894a42980b7ee8487e490127", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b948956f2ed8919a8fb30bad5e8e40d5866517f894a42980b7ee8487e490127", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b948956f2ed8919a8fb30bad5e8e40d5866517f894a42980b7ee8487e490127", kill_on_drop: false }`
[INFO] [stdout] 9b948956f2ed8919a8fb30bad5e8e40d5866517f894a42980b7ee8487e490127
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] fe4159f34e5547e4ff6df5ad69b90fb425788d6ba216453ab6bf10d9481abc5e
[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" "fe4159f34e5547e4ff6df5ad69b90fb425788d6ba216453ab6bf10d9481abc5e", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Checking minicbor v0.10.1 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.35s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking minicbor v0.10.1 (/tmp/fixit)
[INFO] [stdout] error: the item `TryFrom` is imported redundantly
[INFO] [stdout]    --> src/bytes.rs:182:13
[INFO] [stdout]     |
[INFO] [stdout] 182 |         use core::convert::TryFrom;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:136:11
[INFO] [stdout]     |
[INFO] [stdout] 136 | #![forbid(unused_imports, unused_variables)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: the item `TryFrom` is imported redundantly
[INFO] [stdout]    --> src/bytes.rs:182:13
[INFO] [stdout]     |
[INFO] [stdout] 182 |         use core::convert::TryFrom;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:136:11
[INFO] [stdout]     |
[INFO] [stdout] 136 | #![forbid(unused_imports, unused_variables)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `minicbor` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] [stderr] error: failed to check after updating to 2021
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `cargo check --frozen --all --all-targets --message-format=json` (exit status: 101)
[INFO] running `Command { std: "docker" "inspect" "fe4159f34e5547e4ff6df5ad69b90fb425788d6ba216453ab6bf10d9481abc5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe4159f34e5547e4ff6df5ad69b90fb425788d6ba216453ab6bf10d9481abc5e", kill_on_drop: false }`
[INFO] [stdout] fe4159f34e5547e4ff6df5ad69b90fb425788d6ba216453ab6bf10d9481abc5e