[INFO] cloning repository https://github.com/pkwww/vareff
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pkwww/vareff" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpkwww%2Fvareff", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpkwww%2Fvareff'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 04e1b47bcbc3af158ba87c0acb8ebfa617e083dd
[INFO] checking pkwww/vareff against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpkwww%2Fvareff" "/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/pkwww/vareff 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/pkwww/vareff
[INFO] finished tweaking git repo https://github.com/pkwww/vareff
[INFO] tweaked toml for git repo https://github.com/pkwww/vareff written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/pkwww/vareff 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] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking pkwww/vareff against try#36dbcaee1a55543dfc181be52a69d99ff46ff62f for pr-122960-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpkwww%2Fvareff" "/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/pkwww/vareff 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/pkwww/vareff
[INFO] finished tweaking git repo https://github.com/pkwww/vareff
[INFO] tweaked toml for git repo https://github.com/pkwww/vareff written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/pkwww/vareff 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking pkwww/vareff against try#36dbcaee1a55543dfc181be52a69d99ff46ff62f for pr-122960-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpkwww%2Fvareff" "/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/pkwww/vareff 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/pkwww/vareff
[INFO] finished tweaking git repo https://github.com/pkwww/vareff
[INFO] tweaked toml for git repo https://github.com/pkwww/vareff written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/pkwww/vareff 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] ed4599debdbfd4794ccc8a847de1ca20fb04a9267b613a38bab71e518f3b2950
[INFO] running `Command { std: "docker" "start" "-a" "ed4599debdbfd4794ccc8a847de1ca20fb04a9267b613a38bab71e518f3b2950", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed4599debdbfd4794ccc8a847de1ca20fb04a9267b613a38bab71e518f3b2950", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed4599debdbfd4794ccc8a847de1ca20fb04a9267b613a38bab71e518f3b2950", kill_on_drop: false }`
[INFO] [stdout] ed4599debdbfd4794ccc8a847de1ca20fb04a9267b613a38bab71e518f3b2950
[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=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" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1b15800a2bc8860581c2de2658cc27b742cb2229fe7a47c3dfb387ce87a7356
[INFO] running `Command { std: "docker" "start" "-a" "e1b15800a2bc8860581c2de2658cc27b742cb2229fe7a47c3dfb387ce87a7356", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Checking vareff v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2021 edition to 2024
[INFO] [stderr]        Fixed src/main.rs (1 fix)
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]   --> src/lang_let.rs:18:24
[INFO] [stdout]    |
[INFO] [stdout] 18 |         Box::new(move |env| val)
[INFO] [stdout]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]  --> src/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let a = EvalInt::int(1);
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `var` and `let_` are never used
[INFO] [stdout]  --> src/lang_let.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub trait LangLet: lang_int::LangInt {
[INFO] [stdout]   |           ------- associated functions in this trait
[INFO] [stdout] 7 |     fn var(var_name: Name) -> Self::Repr;
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 8 |     fn let_(var: (Name, Self::Repr), body: Self::Repr) -> Self::Repr;
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]   --> src/lang_let.rs:18:24
[INFO] [stdout]    |
[INFO] [stdout] 18 |         Box::new(move |env| val)
[INFO] [stdout]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]  --> src/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let a = EvalInt::int(1);
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `var` and `let_` are never used
[INFO] [stdout]  --> src/lang_let.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub trait LangLet: lang_int::LangInt {
[INFO] [stdout]   |           ------- associated functions in this trait
[INFO] [stdout] 7 |     fn var(var_name: Name) -> Self::Repr;
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 8 |     fn let_(var: (Name, Self::Repr), body: Self::Repr) -> Self::Repr;
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr] Running `cargo check` to verify 2024
[INFO] [stderr]     Checking vareff v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]   --> src/lang_let.rs:18:24
[INFO] [stdout]    |
[INFO] [stdout] 18 |         Box::new(move |env| val)
[INFO] [stdout]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]   --> src/lang_let.rs:18:24
[INFO] [stdout]    |
[INFO] [stdout] 18 |         Box::new(move |env| val)
[INFO] [stdout]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]  --> src/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let a = EvalInt::int(1);
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `var` and `let_` are never used
[INFO] [stdout]  --> src/lang_let.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub trait LangLet: lang_int::LangInt {
[INFO] [stdout]   |           ------- associated functions in this trait
[INFO] [stdout] 7 |     fn var(var_name: Name) -> Self::Repr;
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 8 |     fn let_(var: (Name, Self::Repr), body: Self::Repr) -> Self::Repr;
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]  --> src/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let a = EvalInt::int(1);
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `var` and `let_` are never used
[INFO] [stdout]  --> src/lang_let.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub trait LangLet: lang_int::LangInt {
[INFO] [stdout]   |           ------- associated functions in this trait
[INFO] [stdout] 7 |     fn var(var_name: Name) -> Self::Repr;
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 8 |     fn let_(var: (Name, Self::Repr), body: Self::Repr) -> Self::Repr;
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "e1b15800a2bc8860581c2de2658cc27b742cb2229fe7a47c3dfb387ce87a7356", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1b15800a2bc8860581c2de2658cc27b742cb2229fe7a47c3dfb387ce87a7356", kill_on_drop: false }`
[INFO] [stdout] e1b15800a2bc8860581c2de2658cc27b742cb2229fe7a47c3dfb387ce87a7356