[INFO] cloning repository https://github.com/JoshuaPostel/rust-book-hello
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JoshuaPostel/rust-book-hello" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoshuaPostel%2Frust-book-hello", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoshuaPostel%2Frust-book-hello'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7da319d05625958f4a890346362d7db0540ebbaf
[INFO] checking JoshuaPostel/rust-book-hello against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoshuaPostel%2Frust-book-hello" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JoshuaPostel/rust-book-hello on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JoshuaPostel/rust-book-hello
[INFO] finished tweaking git repo https://github.com/JoshuaPostel/rust-book-hello
[INFO] tweaked toml for git repo https://github.com/JoshuaPostel/rust-book-hello written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/JoshuaPostel/rust-book-hello already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 09cab0312ca63f342b378a161ca3b28ef2802e2995ff1a67e6b7d2abb08a8d0d
[INFO] running `Command { std: "docker" "start" "-a" "09cab0312ca63f342b378a161ca3b28ef2802e2995ff1a67e6b7d2abb08a8d0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09cab0312ca63f342b378a161ca3b28ef2802e2995ff1a67e6b7d2abb08a8d0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09cab0312ca63f342b378a161ca3b28ef2802e2995ff1a67e6b7d2abb08a8d0d", kill_on_drop: false }`
[INFO] [stdout] 09cab0312ca63f342b378a161ca3b28ef2802e2995ff1a67e6b7d2abb08a8d0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1134319d93f9480d29708f0d8fe59bed50b4467308d5dee0f24adabfc5f6265b
[INFO] running `Command { std: "docker" "start" "-a" "1134319d93f9480d29708f0d8fe59bed50b4467308d5dee0f24adabfc5f6265b", kill_on_drop: false }`
[INFO] [stderr]     Checking hello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `join` found for enum `Option` in the current scope
[INFO] [stdout]   --> src/lib.rs:60:27
[INFO] [stdout]    |
[INFO] [stdout] 60 |             worker.thread.join().unwrap();
[INFO] [stdout]    |                           ^^^^ method not found in `Option<JoinHandle<()>>`
[INFO] [stdout]    |
[INFO] [stdout] note: the method `join` exists on the type `JoinHandle<()>`
[INFO] [stdout]   --> /rustc/af4a5a13a15fa0c60e06321077ef452f769b42fd/library/std/src/thread/mod.rs:1657:5
[INFO] [stdout] help: consider using `Option::expect` to unwrap the `JoinHandle<()>` value, panicking if the value is an `Option::None`
[INFO] [stdout]    |
[INFO] [stdout] 60 |             worker.thread.expect("REASON").join().unwrap();
[INFO] [stdout]    |                          +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `join` found for enum `Option` in the current scope
[INFO] [stdout]   --> src/lib.rs:60:27
[INFO] [stdout]    |
[INFO] [stdout] 60 |             worker.thread.join().unwrap();
[INFO] [stdout]    |                           ^^^^ method not found in `Option<JoinHandle<()>>`
[INFO] [stdout]    |
[INFO] [stdout] note: the method `join` exists on the type `JoinHandle<()>`
[INFO] [stdout]   --> /rustc/af4a5a13a15fa0c60e06321077ef452f769b42fd/library/std/src/thread/mod.rs:1657:5
[INFO] [stdout] help: consider using `Option::expect` to unwrap the `JoinHandle<()>` value, panicking if the value is an `Option::None`
[INFO] [stdout]    |
[INFO] [stdout] 60 |             worker.thread.expect("REASON").join().unwrap();
[INFO] [stdout]    |                          +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hello` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `hello` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "1134319d93f9480d29708f0d8fe59bed50b4467308d5dee0f24adabfc5f6265b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1134319d93f9480d29708f0d8fe59bed50b4467308d5dee0f24adabfc5f6265b", kill_on_drop: false }`
[INFO] [stdout] 1134319d93f9480d29708f0d8fe59bed50b4467308d5dee0f24adabfc5f6265b
[INFO] checking JoshuaPostel/rust-book-hello against try#36dbcaee1a55543dfc181be52a69d99ff46ff62f for pr-122960-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoshuaPostel%2Frust-book-hello" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JoshuaPostel/rust-book-hello on toolchain 36dbcaee1a55543dfc181be52a69d99ff46ff62f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JoshuaPostel/rust-book-hello
[INFO] finished tweaking git repo https://github.com/JoshuaPostel/rust-book-hello
[INFO] tweaked toml for git repo https://github.com/JoshuaPostel/rust-book-hello written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/JoshuaPostel/rust-book-hello already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 363a538becec1f6db16f8450c30613f1e82c876cb3ce784408ab71746d60004c
[INFO] running `Command { std: "docker" "start" "-a" "363a538becec1f6db16f8450c30613f1e82c876cb3ce784408ab71746d60004c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "363a538becec1f6db16f8450c30613f1e82c876cb3ce784408ab71746d60004c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "363a538becec1f6db16f8450c30613f1e82c876cb3ce784408ab71746d60004c", kill_on_drop: false }`
[INFO] [stdout] 363a538becec1f6db16f8450c30613f1e82c876cb3ce784408ab71746d60004c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88dd9d217ff3c2d43e0ecea1c59c843f6c220b7f647877edb0c01379af3614ee
[INFO] running `Command { std: "docker" "start" "-a" "88dd9d217ff3c2d43e0ecea1c59c843f6c220b7f647877edb0c01379af3614ee", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] skipping non-2021 edition `2018`
[INFO] running `Command { std: "docker" "inspect" "88dd9d217ff3c2d43e0ecea1c59c843f6c220b7f647877edb0c01379af3614ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88dd9d217ff3c2d43e0ecea1c59c843f6c220b7f647877edb0c01379af3614ee", kill_on_drop: false }`
[INFO] [stdout] 88dd9d217ff3c2d43e0ecea1c59c843f6c220b7f647877edb0c01379af3614ee