[INFO] updating cached repository https://github.com/RyanBluth/todo
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5ad879185f0284862d3594d52f96cf0e4dca9aca
[INFO] testing RyanBluth/todo against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FRyanBluth%2Ftodo" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RyanBluth/todo on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/RyanBluth/todo
[INFO] finished tweaking git repo https://github.com/RyanBluth/todo
[INFO] tweaked toml for git repo https://github.com/RyanBluth/todo written to work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/RyanBluth/todo already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 942fe0e565cb76656bc0a2bac27bbc7659f2cedf5d2aadd94214caf47d4b4c80
[INFO] running `"docker" "start" "-a" "942fe0e565cb76656bc0a2bac27bbc7659f2cedf5d2aadd94214caf47d4b4c80"`
[INFO] [stderr]    Compiling wcwidth v1.0.1
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling syn v0.15.9
[INFO] [stderr]    Compiling serde_json v1.0.32
[INFO] [stderr]    Compiling backtrace v0.3.9
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling aho-corasick v0.6.8
[INFO] [stderr]    Compiling regex v1.0.5
[INFO] [stderr]    Compiling term-table v0.1.6
[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]    Compiling serde_derive v1.0.79
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]    Compiling failure v0.1.2
[INFO] [stderr]    Compiling todo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `Deserialize`, `Serialize`
[INFO] [stderr]  --> src/todo/types.rs:2:13
[INFO] [stderr]   |
[INFO] [stderr] 2 | use serde::{Serialize, Deserialize};
[INFO] [stderr]   |             ^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `metadata`
[INFO] [stderr]  --> src/todo/types.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::fs::{metadata, File, OpenOptions};
[INFO] [stderr]   |               ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:64:13
[INFO] [stderr]    |
[INFO] [stderr] 64 |         let mut collection = ToDoCollection::load()?;
[INFO] [stderr]    |             ----^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.35s
[INFO] running `"docker" "inspect" "942fe0e565cb76656bc0a2bac27bbc7659f2cedf5d2aadd94214caf47d4b4c80"`
[INFO] running `"docker" "rm" "-f" "942fe0e565cb76656bc0a2bac27bbc7659f2cedf5d2aadd94214caf47d4b4c80"`
[INFO] [stdout] 942fe0e565cb76656bc0a2bac27bbc7659f2cedf5d2aadd94214caf47d4b4c80
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] c995c7eedc5fb6896229b2f2bbcf569dcf2d4e790a7556cf4cfcd2b342bfa94d
[INFO] running `"docker" "start" "-a" "c995c7eedc5fb6896229b2f2bbcf569dcf2d4e790a7556cf4cfcd2b342bfa94d"`
[INFO] [stderr]    Compiling todo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `Deserialize`, `Serialize`
[INFO] [stderr]  --> src/todo/types.rs:2:13
[INFO] [stderr]   |
[INFO] [stderr] 2 | use serde::{Serialize, Deserialize};
[INFO] [stderr]   |             ^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `metadata`
[INFO] [stderr]  --> src/todo/types.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::fs::{metadata, File, OpenOptions};
[INFO] [stderr]   |               ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:64:13
[INFO] [stderr]    |
[INFO] [stderr] 64 |         let mut collection = ToDoCollection::load()?;
[INFO] [stderr]    |             ----^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `"docker" "inspect" "c995c7eedc5fb6896229b2f2bbcf569dcf2d4e790a7556cf4cfcd2b342bfa94d"`
[INFO] running `"docker" "rm" "-f" "c995c7eedc5fb6896229b2f2bbcf569dcf2d4e790a7556cf4cfcd2b342bfa94d"`
[INFO] [stdout] c995c7eedc5fb6896229b2f2bbcf569dcf2d4e790a7556cf4cfcd2b342bfa94d
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 0762b8de42d37b6e94d32aadaee0f9c6fb236a751d0a645d25eb0099d477d24d
[INFO] running `"docker" "start" "-a" "0762b8de42d37b6e94d32aadaee0f9c6fb236a751d0a645d25eb0099d477d24d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.26s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/todo-de1751c730d8e530
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "0762b8de42d37b6e94d32aadaee0f9c6fb236a751d0a645d25eb0099d477d24d"`
[INFO] running `"docker" "rm" "-f" "0762b8de42d37b6e94d32aadaee0f9c6fb236a751d0a645d25eb0099d477d24d"`
[INFO] [stdout] 0762b8de42d37b6e94d32aadaee0f9c6fb236a751d0a645d25eb0099d477d24d