[INFO] cloning repository https://github.com/mosmeh/tamago
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mosmeh/tamago" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmosmeh%2Ftamago", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmosmeh%2Ftamago'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1f077bd6fd8c0d53df1770ff9bc008a73a514a4f
[INFO] checking mosmeh/tamago 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%2Fmosmeh%2Ftamago" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mosmeh/tamago
[INFO] finished tweaking git repo https://github.com/mosmeh/tamago
[INFO] tweaked toml for git repo https://github.com/mosmeh/tamago written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mosmeh/tamago 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/mosmeh/tamago 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 47028a300534f4f7458d9c7216f0240743f9a40b02b62e3af3aa62ae31acbbda
[INFO] running `Command { std: "docker" "start" "-a" "47028a300534f4f7458d9c7216f0240743f9a40b02b62e3af3aa62ae31acbbda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47028a300534f4f7458d9c7216f0240743f9a40b02b62e3af3aa62ae31acbbda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47028a300534f4f7458d9c7216f0240743f9a40b02b62e3af3aa62ae31acbbda", kill_on_drop: false }`
[INFO] [stdout] 47028a300534f4f7458d9c7216f0240743f9a40b02b62e3af3aa62ae31acbbda
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 5760a14913ed1b4813cded67502e5ac9cd937057d62982b9f2619676f184c2c1
[INFO] running `Command { std: "docker" "start" "-a" "5760a14913ed1b4813cded67502e5ac9cd937057d62982b9f2619676f184c2c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling newtype_derive v0.1.6
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling ndarray v0.13.1
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling radium v0.6.2
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking matrixmultiply v0.2.4
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]    Compiling bv v0.11.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling sufsort-rs v0.1.0 (https://github.com/srirampc/sufsort-rs.git#cc6bdb13)
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking array-macro v1.0.5
[INFO] [stderr]    Compiling bio v0.32.0
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking statrs v0.12.0
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking itertools-num v0.1.3
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking funty v1.1.0
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking strum v0.18.0
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking bytecount v0.6.2
[INFO] [stderr]     Checking triple_accel v0.3.4
[INFO] [stderr]     Checking bitvec v0.20.4
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking xxhash-rust v0.8.2
[INFO] [stderr]     Checking sorted-list v0.2.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling derive-new v0.5.9
[INFO] [stderr]    Compiling enum-map-derive v0.4.6
[INFO] [stderr]    Compiling snafu-derive v0.6.10
[INFO] [stderr]    Compiling strum_macros v0.20.1
[INFO] [stderr]     Checking enum-map v0.6.4
[INFO] [stderr]    Compiling getset v0.0.9
[INFO] [stderr]    Compiling structopt-derive v0.4.15
[INFO] [stderr]     Checking thiserror v1.0.26
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]     Checking snafu v0.6.10
[INFO] [stderr]     Checking bio-types v0.12.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking multimap v0.8.3
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking structopt v0.3.22
[INFO] [stderr]     Checking tamago v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/bin/tamago/commands/index.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | /     #[structopt(short, long)]
[INFO] [stdout] 16 | |     reference: PathBuf,
[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<PathBuf, Infallible>
[INFO] [stdout]   --> src/bin/tamago/commands/index.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | /     #[structopt(short, long)]
[INFO] [stdout] 18 | |     index: PathBuf,
[INFO] [stdout]    | |__________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/tamago/commands/index.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | /     #[structopt(long)]
[INFO] [stdout] 20 | |     header_sep: Option<String>,
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/bin/tamago/commands/map.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | /     #[structopt(short, long)]
[INFO] [stdout] 22 | |     index: PathBuf,
[INFO] [stdout]    | |__________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/bin/tamago/commands/map.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | /     #[structopt(short, long)]
[INFO] [stdout] 25 | |     reads: PathBuf,
[INFO] [stdout]    | |__________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/tamago/commands/map.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | /     #[structopt(long)]
[INFO] [stdout] 38 | |     header_sep: Option<String>,
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/bin/tamago/commands/stats.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | /     #[structopt(short, long)]
[INFO] [stdout] 15 | |     index: PathBuf,
[INFO] [stdout]    | |__________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/bin/tamago/commands/index.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | /     #[structopt(short, long)]
[INFO] [stdout] 16 | |     reference: PathBuf,
[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<PathBuf, Infallible>
[INFO] [stdout]   --> src/bin/tamago/commands/index.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | /     #[structopt(short, long)]
[INFO] [stdout] 18 | |     index: PathBuf,
[INFO] [stdout]    | |__________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/tamago/commands/index.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | /     #[structopt(long)]
[INFO] [stdout] 20 | |     header_sep: Option<String>,
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/bin/tamago/commands/map.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | /     #[structopt(short, long)]
[INFO] [stdout] 22 | |     index: PathBuf,
[INFO] [stdout]    | |__________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/bin/tamago/commands/map.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | /     #[structopt(short, long)]
[INFO] [stdout] 25 | |     reads: PathBuf,
[INFO] [stdout]    | |__________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/tamago/commands/map.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | /     #[structopt(long)]
[INFO] [stdout] 38 | |     header_sep: Option<String>,
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/bin/tamago/commands/stats.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | /     #[structopt(short, long)]
[INFO] [stdout] 15 | |     index: PathBuf,
[INFO] [stdout]    | |__________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tamago` (bin "tamago") due to 7 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `tamago` (bin "tamago" test) due to 7 previous errors
[INFO] running `Command { std: "docker" "inspect" "5760a14913ed1b4813cded67502e5ac9cd937057d62982b9f2619676f184c2c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5760a14913ed1b4813cded67502e5ac9cd937057d62982b9f2619676f184c2c1", kill_on_drop: false }`
[INFO] [stdout] 5760a14913ed1b4813cded67502e5ac9cd937057d62982b9f2619676f184c2c1