[INFO] updating cached repository https://github.com/marcaddeo/docdoc
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/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] 60357bebdd993e3bfefc5e710dd20812c7fb2e93
[INFO] checking marcaddeo/docdoc against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarcaddeo%2Fdocdoc" "work/builds/worker-0/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/marcaddeo/docdoc on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/marcaddeo/docdoc
[INFO] finished tweaking git repo https://github.com/marcaddeo/docdoc
[INFO] tweaked toml for git repo https://github.com/marcaddeo/docdoc written to work/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/marcaddeo/docdoc already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/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=forbid" "-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" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ce735db26dd3722222de98580aa9b54b645a89b1599cf961d1efa2dc35671424
[INFO] running `"docker" "start" "-a" "ce735db26dd3722222de98580aa9b54b645a89b1599cf961d1efa2dc35671424"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking entities v1.0.0
[INFO] [stderr]     Checking fs_extra v1.0.0
[INFO] [stderr]     Checking memchr v2.0.0
[INFO] [stderr]     Checking yaml-rust v0.4.0
[INFO] [stderr]     Checking serde_json v1.0.4
[INFO] [stderr]     Checking clap v2.27.1
[INFO] [stderr]     Checking serde_yaml v0.7.1
[INFO] [stderr]     Checking backtrace-sys v0.1.16
[INFO] [stderr]    Compiling serde_derive v1.0.16
[INFO] [stderr]     Checking backtrace v0.3.3
[INFO] [stderr]     Checking twoway v0.1.4
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]     Checking tera v0.10.10
[INFO] [stderr]     Checking docopt v0.8.1
[INFO] [stderr]     Checking comrak v0.2.3
[INFO] [stderr]     Checking docdoc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/errors.rs:1:1
[INFO] [stderr]    |
[INFO] [stderr] 1  | / error_chain! {
[INFO] [stderr] 2  | |     foreign_links {
[INFO] [stderr] 3  | |         SerdeYamlError(::serde_yaml::Error);
[INFO] [stderr] 4  | |         YamlScanError(::yaml_rust::ScanError);
[INFO] [stderr] ...  |
[INFO] [stderr] 67 | |     }
[INFO] [stderr] 68 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/errors.rs:1:1
[INFO] [stderr]    |
[INFO] [stderr] 1  | / error_chain! {
[INFO] [stderr] 2  | |     foreign_links {
[INFO] [stderr] 3  | |         SerdeYamlError(::serde_yaml::Error);
[INFO] [stderr] 4  | |         YamlScanError(::yaml_rust::ScanError);
[INFO] [stderr] ...  |
[INFO] [stderr] 67 | |     }
[INFO] [stderr] 68 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/errors.rs:1:1
[INFO] [stderr]    |
[INFO] [stderr] 1  | / error_chain! {
[INFO] [stderr] 2  | |     foreign_links {
[INFO] [stderr] 3  | |         SerdeYamlError(::serde_yaml::Error);
[INFO] [stderr] 4  | |         YamlScanError(::yaml_rust::ScanError);
[INFO] [stderr] ...  |
[INFO] [stderr] 67 | |     }
[INFO] [stderr] 68 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/errors.rs:1:1
[INFO] [stderr]    |
[INFO] [stderr] 1  | / error_chain! {
[INFO] [stderr] 2  | |     foreign_links {
[INFO] [stderr] 3  | |         SerdeYamlError(::serde_yaml::Error);
[INFO] [stderr] 4  | |         YamlScanError(::yaml_rust::ScanError);
[INFO] [stderr] ...  |
[INFO] [stderr] 67 | |     }
[INFO] [stderr] 68 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Write` is imported redundantly
[INFO] [stderr]   --> src/main.rs:67:9
[INFO] [stderr]    |
[INFO] [stderr] 9  | use std::io::prelude::*;
[INFO] [stderr]    |     ------------------- the item `Write` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 67 |     use std::io::Write;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:120:17
[INFO] [stderr]     |
[INFO] [stderr] 120 |             let mut extra_metadata: Mapping;
[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] warning: the item `Write` is imported redundantly
[INFO] [stderr]   --> src/main.rs:67:9
[INFO] [stderr]    |
[INFO] [stderr] 9  | use std::io::prelude::*;
[INFO] [stderr]    |     ------------------- the item `Write` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 67 |     use std::io::Write;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:120:17
[INFO] [stderr]     |
[INFO] [stderr] 120 |             let mut extra_metadata: Mapping;
[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 40.11s
[INFO] running `"docker" "inspect" "ce735db26dd3722222de98580aa9b54b645a89b1599cf961d1efa2dc35671424"`
[INFO] running `"docker" "rm" "-f" "ce735db26dd3722222de98580aa9b54b645a89b1599cf961d1efa2dc35671424"`
[INFO] [stdout] ce735db26dd3722222de98580aa9b54b645a89b1599cf961d1efa2dc35671424