[INFO] cloning repository https://github.com/iamazy/rust-cookbook-code
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iamazy/rust-cookbook-code" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamazy%2Frust-cookbook-code", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamazy%2Frust-cookbook-code'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b9655bc474384f12ed96d3d75ee65931d65ba9c6
[INFO] checking iamazy/rust-cookbook-code against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamazy%2Frust-cookbook-code" "/workspace/builds/worker-26/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-26/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iamazy/rust-cookbook-code 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 git repo https://github.com/iamazy/rust-cookbook-code
[INFO] finished tweaking git repo https://github.com/iamazy/rust-cookbook-code
[INFO] tweaked toml for git repo https://github.com/iamazy/rust-cookbook-code written to /workspace/builds/worker-26/source/Cargo.toml
[INFO] crate git repo https://github.com/iamazy/rust-cookbook-code 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded getset v0.0.7
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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] [stdout] c94938565fa9964a23363cde81583bb7716e68ef8c2493e03a36170ca2a2fae4
[INFO] running `Command { std: "docker" "start" "-a" "c94938565fa9964a23363cde81583bb7716e68ef8c2493e03a36170ca2a2fae4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c94938565fa9964a23363cde81583bb7716e68ef8c2493e03a36170ca2a2fae4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c94938565fa9964a23363cde81583bb7716e68ef8c2493e03a36170ca2a2fae4", kill_on_drop: false }`
[INFO] [stdout] c94938565fa9964a23363cde81583bb7716e68ef8c2493e03a36170ca2a2fae4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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] 69193d286eb9ff489460effac16c565ad2364b4b7f920ae76527e22b16d8b4cc
[INFO] running `Command { std: "docker" "start" "-a" "69193d286eb9ff489460effac16c565ad2364b4b7f920ae76527e22b16d8b4cc", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr] note: Switching to Edition 2021 will enable the use of the version 2 feature resolver in Cargo.
[INFO] [stderr] This may cause some dependencies to be built with fewer features enabled than previously.
[INFO] [stderr] More information about the resolver changes may be found at https://doc.rust-lang.org/nightly/edition-guide/rust-2021/default-cargo-resolver.html
[INFO] [stderr] When building the following dependencies, the given features will no longer be used:
[INFO] [stderr] 
[INFO] [stderr]   protobuf v2.0.6 (as host dependency): bytes, with-bytes
[INFO] [stderr] 
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]    Compiling protobuf v2.0.6
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]    Compiling anyhow v1.0.26
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[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
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[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]     Checking dirs v2.0.2
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[INFO] [stderr]    Compiling protobuf-codegen v2.0.6
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[INFO] [stderr]    Compiling raft-proto v0.6.0-alpha
[INFO] [stderr]     Checking raft v0.6.0-alpha
[INFO] [stderr]     Checking rust-cookbook-code v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating examples/unpin.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]  --> examples/unpin.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     std::mem::replace(&mut *pinned_string, "other".to_string());
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]   = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.34s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]    Compiling protobuf v2.0.6
[INFO] [stderr]    Compiling protobuf-codegen v2.0.6
[INFO] [stderr]    Compiling protobuf-build v0.8.0
[INFO] [stderr]    Compiling raft-proto v0.6.0-alpha
[INFO] [stderr]     Checking raft v0.6.0-alpha
[INFO] [stderr]     Checking rust-cookbook-code v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]  --> examples/unpin.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     std::mem::replace(&mut *pinned_string, "other".to_string());
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]   = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.19s
[INFO] running `Command { std: "docker" "inspect" "69193d286eb9ff489460effac16c565ad2364b4b7f920ae76527e22b16d8b4cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69193d286eb9ff489460effac16c565ad2364b4b7f920ae76527e22b16d8b4cc", kill_on_drop: false }`
[INFO] [stdout] 69193d286eb9ff489460effac16c565ad2364b4b7f920ae76527e22b16d8b4cc