[INFO] fetching crate beancount-sort 0.1.5...
[INFO] checking beancount-sort-0.1.5 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate beancount-sort 0.1.5 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate beancount-sort 0.1.5 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate beancount-sort 0.1.5
[INFO] finished tweaking crates.io crate beancount-sort 0.1.5
[INFO] tweaked toml for crates.io crate beancount-sort 0.1.5 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate beancount-sort 0.1.5 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded structopt-derive v0.4.16
[INFO] [stderr]   Downloaded anyhow v1.0.43
[INFO] [stderr]   Downloaded proc-macro2 v1.0.29
[INFO] [stderr]   Downloaded structopt v0.3.23
[INFO] [stderr]   Downloaded syn v1.0.76
[INFO] [stderr]   Downloaded libc v0.2.101
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f3f7b9dd917ab934f12e53c00e1a5e3c1d5d8bce5816bac87f49faa668be4e16
[INFO] running `Command { std: "docker" "start" "-a" "f3f7b9dd917ab934f12e53c00e1a5e3c1d5d8bce5816bac87f49faa668be4e16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3f7b9dd917ab934f12e53c00e1a5e3c1d5d8bce5816bac87f49faa668be4e16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3f7b9dd917ab934f12e53c00e1a5e3c1d5d8bce5816bac87f49faa668be4e16", kill_on_drop: false }`
[INFO] [stdout] f3f7b9dd917ab934f12e53c00e1a5e3c1d5d8bce5816bac87f49faa668be4e16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac7886bdc581c1029fc6dabaf2e4592613bae746a18143eb3072b47f7e4129c1
[INFO] running `Command { std: "docker" "start" "-a" "ac7886bdc581c1029fc6dabaf2e4592613bae746a18143eb3072b47f7e4129c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling anyhow v1.0.43
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling structopt-derive v0.4.16
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking structopt v0.3.23
[INFO] [stderr]     Checking beancount-sort v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `BufRead` is imported redundantly
[INFO] [stdout]  --> src/main.rs:1:53
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{env, fs::{OpenOptions, remove_file}, io::{BufRead, BufReader, prelude::*}, mem, path::{Path, PathBuf}};
[INFO] [stdout]   |                                                     ^^^^^^^             ---------- the item `BufRead` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `BufRead` is imported redundantly
[INFO] [stdout]  --> src/main.rs:1:53
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{env, fs::{OpenOptions, remove_file}, io::{BufRead, BufReader, prelude::*}, mem, path::{Path, PathBuf}};
[INFO] [stdout]   |                                                     ^^^^^^^             ---------- the item `BufRead` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `path` is never read
[INFO] [stdout]   --> src/main.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct LedgerFile {
[INFO] [stdout]    |        ---------- field in this struct
[INFO] [stdout] 32 |     path: PathBuf,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LedgerFile` 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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]    --> src/main.rs:325:21
[INFO] [stdout]     |
[INFO] [stdout] 325 |                 let val = sorted_entries_function.remove(i);
[INFO] [stdout]     |                     ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `path` is never read
[INFO] [stdout]   --> src/main.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct LedgerFile {
[INFO] [stdout]    |        ---------- field in this struct
[INFO] [stdout] 32 |     path: PathBuf,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LedgerFile` 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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.38s
[INFO] running `Command { std: "docker" "inspect" "ac7886bdc581c1029fc6dabaf2e4592613bae746a18143eb3072b47f7e4129c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac7886bdc581c1029fc6dabaf2e4592613bae746a18143eb3072b47f7e4129c1", kill_on_drop: false }`
[INFO] [stdout] ac7886bdc581c1029fc6dabaf2e4592613bae746a18143eb3072b47f7e4129c1