[INFO] cloning repository https://github.com/cesare/cargo-toml
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cesare/cargo-toml" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcesare%2Fcargo-toml", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcesare%2Fcargo-toml'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 539d8e5f5c490cbf72199916473c05f04ee16250
[INFO] checking cesare/cargo-toml against master#8424f8e8cdf07010967a57584fd647b30e930d4d for pr-120095
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcesare%2Fcargo-toml" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cesare/cargo-toml on toolchain 8424f8e8cdf07010967a57584fd647b30e930d4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8424f8e8cdf07010967a57584fd647b30e930d4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cesare/cargo-toml
[INFO] finished tweaking git repo https://github.com/cesare/cargo-toml
[INFO] tweaked toml for git repo https://github.com/cesare/cargo-toml written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/cesare/cargo-toml 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" "+8424f8e8cdf07010967a57584fd647b30e930d4d" "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 cesare/cargo-toml against try#047472f299946caf090d1b5608ae4bd9f0416256+rustflags=-Ddereferencing_mut_binding for pr-120095
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcesare%2Fcargo-toml" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cesare/cargo-toml on toolchain 047472f299946caf090d1b5608ae4bd9f0416256
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+047472f299946caf090d1b5608ae4bd9f0416256" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cesare/cargo-toml
[INFO] finished tweaking git repo https://github.com/cesare/cargo-toml
[INFO] tweaked toml for git repo https://github.com/cesare/cargo-toml written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/cesare/cargo-toml 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" "+047472f299946caf090d1b5608ae4bd9f0416256" "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 serde_derive v0.9.11
[INFO] [stderr]   Downloaded serde_codegen_internals v0.14.1
[INFO] [stderr]   Downloaded serde v0.9.11
[INFO] [stderr]   Downloaded toml v0.3.1
[INFO] [stderr]   Downloaded syn v0.11.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+047472f299946caf090d1b5608ae4bd9f0416256" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fcd686c72bc5ad3f8422a624e1ced284a84f18d713677aff47cb3a971c9f6a88
[INFO] running `Command { std: "docker" "start" "-a" "fcd686c72bc5ad3f8422a624e1ced284a84f18d713677aff47cb3a971c9f6a88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fcd686c72bc5ad3f8422a624e1ced284a84f18d713677aff47cb3a971c9f6a88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcd686c72bc5ad3f8422a624e1ced284a84f18d713677aff47cb3a971c9f6a88", kill_on_drop: false }`
[INFO] [stdout] fcd686c72bc5ad3f8422a624e1ced284a84f18d713677aff47cb3a971c9f6a88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Ddereferencing_mut_binding" "-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" "+047472f299946caf090d1b5608ae4bd9f0416256" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c03c5c801387b36736f9a5e7670fa5393b3ce9c40540ae7759b2eba6810b8fc
[INFO] running `Command { std: "docker" "start" "-a" "5c03c5c801387b36736f9a5e7670fa5393b3ce9c40540ae7759b2eba6810b8fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking serde v0.9.11
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.9
[INFO] [stderr]    Compiling serde_codegen_internals v0.14.1
[INFO] [stderr]    Compiling serde_derive v0.9.11
[INFO] [stderr]     Checking toml v0.3.1
[INFO] [stderr]     Checking cargo-toml v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/list-cargo-bin.rs:31:28
[INFO] [stdout]    |
[INFO] [stdout] 31 |         Error { message: e.description().to_string() }
[INFO] [stdout]    |                            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/list-cargo-bin.rs:37:28
[INFO] [stdout]    |
[INFO] [stdout] 37 |         Error { message: e.description().to_string() }
[INFO] [stdout]    |                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/list-cargo-bin.rs:31:28
[INFO] [stdout]    |
[INFO] [stdout] 31 |         Error { message: e.description().to_string() }
[INFO] [stdout]    |                            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/list-cargo-bin.rs:37:28
[INFO] [stdout]    |
[INFO] [stdout] 37 |         Error { message: e.description().to_string() }
[INFO] [stdout]    |                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `package` is never read
[INFO] [stdout]   --> src/list-cargo-bin.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | struct Cargo {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 43 |     package: Package,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Cargo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name`, `version`, and `authors` are never read
[INFO] [stdout]   --> src/list-cargo-bin.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 48 | struct Package {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 49 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 50 |     version: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 51 |     authors: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Package` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `path` is never read
[INFO] [stdout]   --> src/list-cargo-bin.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 55 | struct Bin {
[INFO] [stdout]    |        --- field in this struct
[INFO] [stdout] 56 |     name: String,
[INFO] [stdout] 57 |     path: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Bin` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/list-cargo-bin.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |         f.read_to_string(&mut s);
[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)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 63 |         let _ = f.read_to_string(&mut s);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `package` is never read
[INFO] [stdout]   --> src/list-cargo-bin.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | struct Cargo {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 43 |     package: Package,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Cargo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name`, `version`, and `authors` are never read
[INFO] [stdout]   --> src/list-cargo-bin.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 48 | struct Package {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 49 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 50 |     version: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 51 |     authors: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Package` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `path` is never read
[INFO] [stdout]   --> src/list-cargo-bin.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 55 | struct Bin {
[INFO] [stdout]    |        --- field in this struct
[INFO] [stdout] 56 |     name: String,
[INFO] [stdout] 57 |     path: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Bin` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/list-cargo-bin.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |         f.read_to_string(&mut s);
[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)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 63 |         let _ = f.read_to_string(&mut s);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.76s
[INFO] running `Command { std: "docker" "inspect" "5c03c5c801387b36736f9a5e7670fa5393b3ce9c40540ae7759b2eba6810b8fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c03c5c801387b36736f9a5e7670fa5393b3ce9c40540ae7759b2eba6810b8fc", kill_on_drop: false }`
[INFO] [stdout] 5c03c5c801387b36736f9a5e7670fa5393b3ce9c40540ae7759b2eba6810b8fc