[INFO] cloning repository https://github.com/kurnos/adventofcode2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kurnos/adventofcode2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkurnos%2Fadventofcode2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkurnos%2Fadventofcode2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 478123845b00999eb6a33f085dab9b2aca260fc1
[INFO] checking kurnos/adventofcode2020 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%2Fkurnos%2Fadventofcode2020" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kurnos/adventofcode2020
[INFO] finished tweaking git repo https://github.com/kurnos/adventofcode2020
[INFO] tweaked toml for git repo https://github.com/kurnos/adventofcode2020 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kurnos/adventofcode2020 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/kurnos/adventofcode2020 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 2bebecea1460a27fe8108a64459b41c364cb25909e6aa30fe025a15490496632
[INFO] running `Command { std: "docker" "start" "-a" "2bebecea1460a27fe8108a64459b41c364cb25909e6aa30fe025a15490496632", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2bebecea1460a27fe8108a64459b41c364cb25909e6aa30fe025a15490496632", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bebecea1460a27fe8108a64459b41c364cb25909e6aa30fe025a15490496632", kill_on_drop: false }`
[INFO] [stdout] 2bebecea1460a27fe8108a64459b41c364cb25909e6aa30fe025a15490496632
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] ea20724e80d1e930262c55fc191df9cf10dc799f1b1ebba0869e97c5acd10a44
[INFO] running `Command { std: "docker" "start" "-a" "ea20724e80d1e930262c55fc191df9cf10dc799f1b1ebba0869e97c5acd10a44", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking adventofcode2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `adventofcode2020` (bin "adventofcode2020" test) due to 3 previous errors; 1 warning emitted
[INFO] [stdout] error: this type will no longer be must used: Result<I, Never>
[INFO] [stdout]   --> src/day08.rs:69:53
[INFO] [stdout]    |
[INFO] [stdout] 69 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]    |  _____________________________________________________^
[INFO] [stdout] 70 | |         Ok(match &s[..3] {
[INFO] [stdout] 71 | |             "jmp" => I::Jmp(s[4..].parse().unwrap()),
[INFO] [stdout] 72 | |             "acc" => I::Acc(s[4..].parse().unwrap()),
[INFO] [stdout] ...  |
[INFO] [stdout] 75 | |         })
[INFO] [stdout] 76 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<I, Never>
[INFO] [stdout]   --> src/day08.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 | /         Ok(match &s[..3] {
[INFO] [stdout] 71 | |             "jmp" => I::Jmp(s[4..].parse().unwrap()),
[INFO] [stdout] 72 | |             "acc" => I::Acc(s[4..].parse().unwrap()),
[INFO] [stdout] 73 | |             "nop" => I::Nop(s[4..].parse().unwrap()),
[INFO] [stdout] 74 | |             _ => panic!(),
[INFO] [stdout] 75 | |         })
[INFO] [stdout]    | |__________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<I, Never>
[INFO] [stdout]   --> src/day08.rs:80:33
[INFO] [stdout]    |
[INFO] [stdout] 80 |     contents.lines().map(|line| line.parse().unwrap()).collect()
[INFO] [stdout]    |                                 ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/day16.rs:88:20
[INFO] [stdout]    |
[INFO] [stdout] 88 | fn parse(contents: &str) -> (Vec<Constraint>, Vec<u16>, Vec<Vec<u16>>) {
[INFO] [stdout]    |                    ^^^^          ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 88 | fn parse(contents: &str) -> (Vec<Constraint<'_>>, Vec<u16>, Vec<Vec<u16>>) {
[INFO] [stdout]    |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<I, Never>
[INFO] [stdout]   --> src/day08.rs:69:53
[INFO] [stdout]    |
[INFO] [stdout] 69 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]    |  _____________________________________________________^
[INFO] [stdout] 70 | |         Ok(match &s[..3] {
[INFO] [stdout] 71 | |             "jmp" => I::Jmp(s[4..].parse().unwrap()),
[INFO] [stdout] 72 | |             "acc" => I::Acc(s[4..].parse().unwrap()),
[INFO] [stdout] ...  |
[INFO] [stdout] 75 | |         })
[INFO] [stdout] 76 | |     }
[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<I, Never>
[INFO] [stdout]   --> src/day08.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 | /         Ok(match &s[..3] {
[INFO] [stdout] 71 | |             "jmp" => I::Jmp(s[4..].parse().unwrap()),
[INFO] [stdout] 72 | |             "acc" => I::Acc(s[4..].parse().unwrap()),
[INFO] [stdout] 73 | |             "nop" => I::Nop(s[4..].parse().unwrap()),
[INFO] [stdout] 74 | |             _ => panic!(),
[INFO] [stdout] 75 | |         })
[INFO] [stdout]    | |__________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<I, Never>
[INFO] [stdout]   --> src/day08.rs:80:33
[INFO] [stdout]    |
[INFO] [stdout] 80 |     contents.lines().map(|line| line.parse().unwrap()).collect()
[INFO] [stdout]    |                                 ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/day16.rs:88:20
[INFO] [stdout]    |
[INFO] [stdout] 88 | fn parse(contents: &str) -> (Vec<Constraint>, Vec<u16>, Vec<Vec<u16>>) {
[INFO] [stdout]    |                    ^^^^          ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 88 | fn parse(contents: &str) -> (Vec<Constraint<'_>>, Vec<u16>, Vec<Vec<u16>>) {
[INFO] [stdout]    |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `adventofcode2020` (bin "adventofcode2020") due to 3 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "ea20724e80d1e930262c55fc191df9cf10dc799f1b1ebba0869e97c5acd10a44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea20724e80d1e930262c55fc191df9cf10dc799f1b1ebba0869e97c5acd10a44", kill_on_drop: false }`
[INFO] [stdout] ea20724e80d1e930262c55fc191df9cf10dc799f1b1ebba0869e97c5acd10a44
