[INFO] cloning repository https://github.com/sankaku/sample_deserialize_with_serde
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sankaku/sample_deserialize_with_serde" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsankaku%2Fsample_deserialize_with_serde", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsankaku%2Fsample_deserialize_with_serde'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 33c38089b1cf906591d47e1efd8cca61ddc5af89
[INFO] checking sankaku/sample_deserialize_with_serde against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsankaku%2Fsample_deserialize_with_serde" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sankaku/sample_deserialize_with_serde
[INFO] finished tweaking git repo https://github.com/sankaku/sample_deserialize_with_serde
[INFO] tweaked toml for git repo https://github.com/sankaku/sample_deserialize_with_serde written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sankaku/sample_deserialize_with_serde on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sankaku/sample_deserialize_with_serde 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e8a5e32ec290e6cdbe075b93e6d34be06abba9b8c0ac3efe2ec6b3176db65197
[INFO] running `Command { std: "docker" "start" "-a" "e8a5e32ec290e6cdbe075b93e6d34be06abba9b8c0ac3efe2ec6b3176db65197", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e8a5e32ec290e6cdbe075b93e6d34be06abba9b8c0ac3efe2ec6b3176db65197", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8a5e32ec290e6cdbe075b93e6d34be06abba9b8c0ac3efe2ec6b3176db65197", kill_on_drop: false }`
[INFO] [stdout] e8a5e32ec290e6cdbe075b93e6d34be06abba9b8c0ac3efe2ec6b3176db65197
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20e6cc194268e14304fa3c1d2dd69a61dd725954b6dc57a056d9ad1fe3f9e67c
[INFO] running `Command { std: "docker" "start" "-a" "20e6cc194268e14304fa3c1d2dd69a61dd725954b6dc57a056d9ad1fe3f9e67c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling darling_core v0.13.0
[INFO] [stderr]    Compiling darling_macro v0.13.0
[INFO] [stderr]    Compiling darling v0.13.0
[INFO] [stderr]    Compiling serde_with_macros v1.5.0
[INFO] [stderr]     Checking serde_with v1.10.0
[INFO] [stderr]     Checking sample_deserialize_with_serde v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<person6::Name, Infallible>
[INFO] [stdout]   --> src/person6.rs:31:53
[INFO] [stdout]    |
[INFO] [stdout] 31 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]    |  _____________________________________________________^
[INFO] [stdout] 32 | |         Ok(Name {
[INFO] [stdout] 33 | |             value: s.to_string(),
[INFO] [stdout] 34 | |         })
[INFO] [stdout] 35 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<person6::Name, Infallible>
[INFO] [stdout]   --> src/person6.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 | /         Ok(Name {
[INFO] [stdout] 33 | |             value: s.to_string(),
[INFO] [stdout] 34 | |         })
[INFO] [stdout]    | |__________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<person6::MailAddress, Infallible>
[INFO] [stdout]   --> src/person6.rs:79:53
[INFO] [stdout]    |
[INFO] [stdout] 79 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]    |  _____________________________________________________^
[INFO] [stdout] 80 | |         Ok(MailAddress {
[INFO] [stdout] 81 | |             value: s.to_string(),
[INFO] [stdout] 82 | |         })
[INFO] [stdout] 83 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<person6::MailAddress, Infallible>
[INFO] [stdout]   --> src/person6.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 80 | /         Ok(MailAddress {
[INFO] [stdout] 81 | |             value: s.to_string(),
[INFO] [stdout] 82 | |         })
[INFO] [stdout]    | |__________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<person6::Company, Infallible>
[INFO] [stdout]   --> src/person6.rs:89:53
[INFO] [stdout]    |
[INFO] [stdout] 89 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]    |  _____________________________________________________^
[INFO] [stdout] 90 | |         Ok(Company {
[INFO] [stdout] 91 | |             value: s.to_string(),
[INFO] [stdout] 92 | |         })
[INFO] [stdout] 93 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<person6::Company, Infallible>
[INFO] [stdout]   --> src/person6.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 | /         Ok(Company {
[INFO] [stdout] 91 | |             value: s.to_string(),
[INFO] [stdout] 92 | |         })
[INFO] [stdout]    | |__________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sample_deserialize_with_serde` (lib) due to 6 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<person6::Name, Infallible>
[INFO] [stdout]   --> src/person6.rs:31:53
[INFO] [stdout]    |
[INFO] [stdout] 31 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]    |  _____________________________________________________^
[INFO] [stdout] 32 | |         Ok(Name {
[INFO] [stdout] 33 | |             value: s.to_string(),
[INFO] [stdout] 34 | |         })
[INFO] [stdout] 35 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<person6::Name, Infallible>
[INFO] [stdout]   --> src/person6.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 | /         Ok(Name {
[INFO] [stdout] 33 | |             value: s.to_string(),
[INFO] [stdout] 34 | |         })
[INFO] [stdout]    | |__________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<person6::MailAddress, Infallible>
[INFO] [stdout]   --> src/person6.rs:79:53
[INFO] [stdout]    |
[INFO] [stdout] 79 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]    |  _____________________________________________________^
[INFO] [stdout] 80 | |         Ok(MailAddress {
[INFO] [stdout] 81 | |             value: s.to_string(),
[INFO] [stdout] 82 | |         })
[INFO] [stdout] 83 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<person6::MailAddress, Infallible>
[INFO] [stdout]   --> src/person6.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 80 | /         Ok(MailAddress {
[INFO] [stdout] 81 | |             value: s.to_string(),
[INFO] [stdout] 82 | |         })
[INFO] [stdout]    | |__________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<person6::Company, Infallible>
[INFO] [stdout]   --> src/person6.rs:89:53
[INFO] [stdout]    |
[INFO] [stdout] 89 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]    |  _____________________________________________________^
[INFO] [stdout] 90 | |         Ok(Company {
[INFO] [stdout] 91 | |             value: s.to_string(),
[INFO] [stdout] 92 | |         })
[INFO] [stdout] 93 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<person6::Company, Infallible>
[INFO] [stdout]   --> src/person6.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 | /         Ok(Company {
[INFO] [stdout] 91 | |             value: s.to_string(),
[INFO] [stdout] 92 | |         })
[INFO] [stdout]    | |__________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sample_deserialize_with_serde` (lib test) due to 6 previous errors
[INFO] running `Command { std: "docker" "inspect" "20e6cc194268e14304fa3c1d2dd69a61dd725954b6dc57a056d9ad1fe3f9e67c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20e6cc194268e14304fa3c1d2dd69a61dd725954b6dc57a056d9ad1fe3f9e67c", kill_on_drop: false }`
[INFO] [stdout] 20e6cc194268e14304fa3c1d2dd69a61dd725954b6dc57a056d9ad1fe3f9e67c