[INFO] cloning repository https://github.com/GandhiNN/rust-by-example-3
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GandhiNN/rust-by-example-3" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGandhiNN%2Frust-by-example-3", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGandhiNN%2Frust-by-example-3'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fca0556bb49f41ae31568ba23e02a1e5a79d06ad
[INFO] fixing GandhiNN/rust-by-example-3 against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGandhiNN%2Frust-by-example-3" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/GandhiNN/rust-by-example-3
[INFO] finished tweaking git repo https://github.com/GandhiNN/rust-by-example-3
[INFO] tweaked toml for git repo https://github.com/GandhiNN/rust-by-example-3 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/GandhiNN/rust-by-example-3 on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/GandhiNN/rust-by-example-3 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" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 4e451241c2ea1612954d6b382a7fa9c7e0ebcf697821963f4603f026f93eeef3
[INFO] running `Command { std: "docker" "start" "4e451241c2ea1612954d6b382a7fa9c7e0ebcf697821963f4603f026f93eeef3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4e451241c2ea1612954d6b382a7fa9c7e0ebcf697821963f4603f026f93eeef3" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e451241c2ea1612954d6b382a7fa9c7e0ebcf697821963f4603f026f93eeef3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4e451241c2ea1612954d6b382a7fa9c7e0ebcf697821963f4603f026f93eeef3" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=start=2015", kill_on_drop: false }`
[INFO] [stderr]     Checking smallvec v1.14.0
[INFO] [stderr]     Checking hashbrown v0.15.2
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]     Checking mio v1.0.3
[INFO] [stderr]     Checking socket2 v0.5.9
[INFO] [stderr]    Compiling openssl-sys v0.9.106
[INFO] [stderr]    Compiling openssl v0.10.71
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking rustls-pki-types v1.11.0
[INFO] [stderr]    Compiling portable-atomic v1.11.0
[INFO] [stderr]    Compiling getrandom v0.3.2
[INFO] [stderr]    Compiling rustix v1.0.3
[INFO] [stderr]     Checking chrono v0.4.41
[INFO] [stderr]     Checking object v0.36.7
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking linux-raw-sys v0.9.3
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking console v0.15.11
[INFO] [stderr]     Checking winnow v0.7.4
[INFO] [stderr]     Checking simple-lifetime-constraints-d3s v0.1.0 (/opt/rustwide/workdir/examples/simple-lifetime-constraints-d3s)
[INFO] [stderr]     Checking raw-tcp-stream v0.1.0 (/opt/rustwide/workdir/examples/raw-tcp-stream)
[INFO] [stderr]     Checking basic-multithreads v0.1.0 (/opt/rustwide/workdir/examples/basic-multithreads)
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> examples/raw-tcp-stream/src/lib.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, BufRead};
[INFO] [stdout]   |                     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking conversion-between-data-structures v0.1.0 (/opt/rustwide/workdir/examples/conversion-between-data-structures)
[INFO] [stderr]     Checking macro-rules-designators v0.1.0 (/opt/rustwide/workdir/examples/macro-rules-designators)
[INFO] [stderr]     Checking join-multithreads-2 v0.1.0 (/opt/rustwide/workdir/examples/join-multithreads-2)
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking vector-db v0.1.0 (/opt/rustwide/workdir/examples/vector-db)
[INFO] [stderr]     Checking macro-rules-1 v0.1.0 (/opt/rustwide/workdir/examples/macro-rules-1)
[INFO] [stderr]    Compiling native-tls v0.2.14
[INFO] [stderr]     Checking rustls-pemfile v2.2.0
[INFO] [stderr]     Checking read-file-scoped-threads v0.1.0 (/opt/rustwide/workdir/examples/read-file-scoped-threads)
[INFO] [stderr]     Checking macro-rules-basic v0.1.0 (/opt/rustwide/workdir/examples/macro-rules-basic)
[INFO] [stderr]     Checking move-value-threads v0.1.0 (/opt/rustwide/workdir/examples/move-value-threads)
[INFO] [stderr]     Checking macro-rules-earthly v0.1.0 (/opt/rustwide/workdir/examples/macro-rules-earthly)
[INFO] [stderr]     Checking macro-rules-overloads v0.1.0 (/opt/rustwide/workdir/examples/macro-rules-overloads)
[INFO] [stderr]     Checking macro-rules-repeat v0.1.0 (/opt/rustwide/workdir/examples/macro-rules-repeat)
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> examples/raw-tcp-stream/src/lib.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, BufRead};
[INFO] [stdout]   |                     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> examples/raw-tcp-stream/src/lib.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking macro-rules-dry v0.1.0 (/opt/rustwide/workdir/examples/macro-rules-dry)
[INFO] [stderr]     Checking return-value-from-joinhandler v0.1.0 (/opt/rustwide/workdir/examples/return-value-from-joinhandler)
[INFO] [stderr]     Checking join-multithreads v0.1.0 (/opt/rustwide/workdir/examples/join-multithreads)
[INFO] [stdout] warning: unused import: `std::iter`
[INFO] [stdout]   --> examples/macro-rules-dry/src/lib.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |     use std::iter;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]   --> examples/macro-rules-dry/src/lib.rs:40:1
[INFO] [stdout]    |
[INFO] [stdout] 40 | mod test {
[INFO] [stdout]    | ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add_assign` is never used
[INFO] [stdout]   --> examples/macro-rules-dry/src/lib.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | op!(add_assign, Add, +=, add);
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]    = note: this warning originates in the macro `op` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mul_assign` is never used
[INFO] [stdout]   --> examples/macro-rules-dry/src/lib.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | op!(mul_assign, Mul, *=, mul);
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `op` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sub_assign` is never used
[INFO] [stdout]   --> examples/macro-rules-dry/src/lib.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | op!(sub_assign, Sub, -=, sub);
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `op` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
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[INFO] [stderr]     Checking tempfile v3.19.1
[INFO] [stderr]     Checking backtrace v0.3.74
[INFO] [stderr]     Checking rust-by-example-3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling synstructure v0.13.1
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling serde_derive v1.0.219
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[INFO] [stderr]    Compiling zerovec-derive v0.10.3
[INFO] [stderr]    Compiling displaydoc v0.2.5
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[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking tokio-util v0.7.14
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking tower v0.5.2
[INFO] [stderr]     Checking tokio-and-std-sleep-2 v0.1.0 (/opt/rustwide/workdir/examples/tokio-and-std-sleep-2)
[INFO] [stderr]     Checking tokio-semaphore v0.1.0 (/opt/rustwide/workdir/examples/tokio-semaphore)
[INFO] [stderr]     Checking parallel-async-func-calls v0.1.0 (/opt/rustwide/workdir/examples/parallel-async-func-calls)
[INFO] [stderr]     Checking tokio-and-std-sleep v0.1.0 (/opt/rustwide/workdir/examples/tokio-and-std-sleep)
[INFO] [stderr]     Checking async-with-multithreading v0.1.0 (/opt/rustwide/workdir/examples/async-with-multithreading)
[INFO] [stderr]     Checking concurrent-parallel-execution-d3s v0.1.0 (/opt/rustwide/workdir/examples/concurrent-parallel-execution-d3s)
[INFO] [stderr]     Checking async-comm-with-channels v0.1.0 (/opt/rustwide/workdir/examples/async-comm-with-channels)
[INFO] [stderr]     Checking async-join-all v0.1.0 (/opt/rustwide/workdir/examples/async-join-all)
[INFO] [stderr]     Checking sync-with-arc-and-mutex v0.1.0 (/opt/rustwide/workdir/examples/sync-with-arc-and-mutex)
[INFO] [stdout] warning: unused import: `futures::future::join_all`
[INFO] [stdout]  --> examples/parallel-async-func-calls/src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use futures::future::join_all;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::join`
[INFO] [stdout]  --> examples/parallel-async-func-calls/src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tokio::join;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::time::Duration`
[INFO] [stdout]  --> examples/parallel-async-func-calls/src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use tokio::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> examples/parallel-async-func-calls/src/main.rs:5:51
[INFO] [stdout]   |
[INFO] [stdout] 5 | async fn fetch_data_from_url(url: &str) -> String {}
[INFO] [stdout]   |                                                   ^^ expected `String`, found `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tokio-joining-futures v0.1.0 (/opt/rustwide/workdir/examples/tokio-joining-futures)
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr]     Checking tokio-and-sleep-joinhandles-all v0.1.0 (/opt/rustwide/workdir/examples/tokio-and-sleep-joinhandles-all)
[INFO] [stderr]     Checking simple-io-example-d3s v0.1.0 (/opt/rustwide/workdir/examples/simple-io-example-d3s)
[INFO] [stderr] error: could not compile `parallel-async-func-calls` (bin "parallel-async-func-calls") due to 1 previous error; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "4e451241c2ea1612954d6b382a7fa9c7e0ebcf697821963f4603f026f93eeef3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e451241c2ea1612954d6b382a7fa9c7e0ebcf697821963f4603f026f93eeef3", kill_on_drop: false }`
[INFO] [stdout] 4e451241c2ea1612954d6b382a7fa9c7e0ebcf697821963f4603f026f93eeef3
