[INFO] cloning repository https://github.com/kay-gg/tagging_fs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kay-gg/tagging_fs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkay-gg%2Ftagging_fs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkay-gg%2Ftagging_fs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8939f8edeb0042252a3efba0bb81407bbaf5dd5b
[INFO] checking kay-gg/tagging_fs against try#50d7e48beb74b48bd17c3749bfb73843c9ae0166 for pr-151102
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkay-gg%2Ftagging_fs" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kay-gg/tagging_fs
[INFO] finished tweaking git repo https://github.com/kay-gg/tagging_fs
[INFO] tweaked toml for git repo https://github.com/kay-gg/tagging_fs written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kay-gg/tagging_fs on toolchain 50d7e48beb74b48bd17c3749bfb73843c9ae0166
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+50d7e48beb74b48bd17c3749bfb73843c9ae0166" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kay-gg/tagging_fs 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" "+50d7e48beb74b48bd17c3749bfb73843c9ae0166" "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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+50d7e48beb74b48bd17c3749bfb73843c9ae0166" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8431e648ce018978b76f9b8d00388cc5503351a60e4de80e732fcab85bfb4144
[INFO] running `Command { std: "docker" "start" "-a" "8431e648ce018978b76f9b8d00388cc5503351a60e4de80e732fcab85bfb4144", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8431e648ce018978b76f9b8d00388cc5503351a60e4de80e732fcab85bfb4144", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8431e648ce018978b76f9b8d00388cc5503351a60e4de80e732fcab85bfb4144", kill_on_drop: false }`
[INFO] [stdout] 8431e648ce018978b76f9b8d00388cc5503351a60e4de80e732fcab85bfb4144
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+50d7e48beb74b48bd17c3749bfb73843c9ae0166" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea57bb7bb067776f6afa3cbdf4bbe417f6d1bc89121f0f1a48ceae84257b3518
[INFO] running `Command { std: "docker" "start" "-a" "ea57bb7bb067776f6afa3cbdf4bbe417f6d1bc89121f0f1a48ceae84257b3518", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling serde v1.0.203
[INFO] [stderr]    Compiling serde_json v1.0.118
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.68
[INFO] [stderr]    Compiling serde_derive v1.0.203
[INFO] [stderr]     Checking tag_fs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]  --> src/tests.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | mod tests;
[INFO] [stdout]   | ^^^^^^^^^^
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tests.rs:190:6
[INFO] [stdout]     |
[INFO] [stdout] 190 |     let mut test = Filesystem::new();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]    --> src/lib.rs:194:26
[INFO] [stdout]     |
[INFO] [stdout] 194 |         let mut x: Vec<&str> = Vec::new();
[INFO] [stdout]     |                                ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:110:2
[INFO] [stdout]     |
[INFO] [stdout] 110 |     test.create_tag("tag1");
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 110 |     let _ = test.create_tag("tag1");
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]    --> src/lib.rs:194:26
[INFO] [stdout]     |
[INFO] [stdout] 194 |         let mut x: Vec<&str> = Vec::new();
[INFO] [stdout]     |                                ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.97s
[INFO] running `Command { std: "docker" "inspect" "ea57bb7bb067776f6afa3cbdf4bbe417f6d1bc89121f0f1a48ceae84257b3518", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea57bb7bb067776f6afa3cbdf4bbe417f6d1bc89121f0f1a48ceae84257b3518", kill_on_drop: false }`
[INFO] [stdout] ea57bb7bb067776f6afa3cbdf4bbe417f6d1bc89121f0f1a48ceae84257b3518
