[INFO] updating cached repository https://github.com/der-On/Children-Audio-Library
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/der-On/Children-Audio-Library
[INFO] [stderr]    4da9566..f6ad7d3  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f6ad7d3dbc6d4b982a47eb584e3b8d1dc1f0d129
[INFO] checking der-On/Children-Audio-Library against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fder-On%2FChildren-Audio-Library" "/workspace/builds/worker-9/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] [stderr] Checking out files:  85% (72/84)   
Checking out files:  86% (73/84)   
Checking out files:  88% (74/84)   
Checking out files:  89% (75/84)   
Checking out files:  90% (76/84)   
Checking out files:  91% (77/84)   
Checking out files:  92% (78/84)   
Checking out files:  94% (79/84)   
Checking out files:  95% (80/84)   
Checking out files:  96% (81/84)   
Checking out files:  97% (82/84)   
Checking out files:  98% (83/84)   
Checking out files: 100% (84/84)   
Checking out files: 100% (84/84), done.
[INFO] validating manifest of git repo https://github.com/der-On/Children-Audio-Library on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/der-On/Children-Audio-Library
[INFO] finished tweaking git repo https://github.com/der-On/Children-Audio-Library
[INFO] tweaked toml for git repo https://github.com/der-On/Children-Audio-Library written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/der-On/Children-Audio-Library already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fc014ec89f8ae5ac01ee82714ced446ad8e731e1f571d4425b2567a4c8a5dfe8
[INFO] running `"docker" "start" "-a" "fc014ec89f8ae5ac01ee82714ced446ad8e731e1f571d4425b2567a4c8a5dfe8"`
[INFO] [stderr]    Compiling num-traits v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.38
[INFO] [stderr]     Checking serde v1.0.55
[INFO] [stderr]     Checking natord v1.0.9
[INFO] [stderr]     Checking cmd_lib v0.7.8
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking mime v0.3.7
[INFO] [stderr]    Compiling syn v0.13.9
[INFO] [stderr]     Checking net2 v0.2.32
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]     Checking mime_guess v2.0.3
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking tokio v0.2.16
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.55
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking serde_json v1.0.17
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking h2 v0.2.4
[INFO] [stderr]     Checking hyper v0.13.4
[INFO] [stderr]     Checking hyper-staticfile v0.5.1
[INFO] [stderr]     Checking children-audio-library v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `file_size`
[INFO] [stderr]    --> src/library.rs:145:4
[INFO] [stderr]     |
[INFO] [stderr] 145 | fn file_size(_file: &File) {
[INFO] [stderr]     |    ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `updatedAt` should have a snake case name
[INFO] [stderr]   --> src/library.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub updatedAt: String,
[INFO] [stderr]    |         ^^^^^^^^^ help: convert the identifier to snake case: `updated_at`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `file_size`
[INFO] [stderr]    --> src/library.rs:145:4
[INFO] [stderr]     |
[INFO] [stderr] 145 | fn file_size(_file: &File) {
[INFO] [stderr]     |    ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `updatedAt` should have a snake case name
[INFO] [stderr]   --> src/library.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub updatedAt: String,
[INFO] [stderr]    |         ^^^^^^^^^ help: convert the identifier to snake case: `updated_at`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::Path`
[INFO] [stderr]  --> src/bin/cli.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::path::Path;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/bin/cli.rs:42:10
[INFO] [stderr]    |
[INFO] [stderr] 42 |         0...1 => "help".to_owned(),
[INFO] [stderr]    |          ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::Path`
[INFO] [stderr]  --> src/bin/cli.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::path::Path;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/bin/cli.rs:42:10
[INFO] [stderr]    |
[INFO] [stderr] 42 |         0...1 => "help".to_owned(),
[INFO] [stderr]    |          ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/bin/cli.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     serde_json::to_writer_pretty(file, &_library);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/bin/cli.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     serde_json::to_writer_pretty(file, &_library);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 11s
[INFO] running `"docker" "inspect" "fc014ec89f8ae5ac01ee82714ced446ad8e731e1f571d4425b2567a4c8a5dfe8"`
[INFO] running `"docker" "rm" "-f" "fc014ec89f8ae5ac01ee82714ced446ad8e731e1f571d4425b2567a4c8a5dfe8"`
[INFO] [stdout] fc014ec89f8ae5ac01ee82714ced446ad8e731e1f571d4425b2567a4c8a5dfe8