[INFO] fetching crate licensor 2.1.0...
[INFO] checking licensor-2.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate licensor 2.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate licensor 2.1.0
[INFO] finished tweaking crates.io crate licensor 2.1.0
[INFO] tweaked toml for crates.io crate licensor 2.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate licensor 2.1.0 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 crates.io crate licensor 2.1.0 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 7d0c143f2967dbdeb6dd11e6a1ae006477aba3ef37f7d97ead55289bdb492189
[INFO] running `Command { std: "docker" "start" "-a" "7d0c143f2967dbdeb6dd11e6a1ae006477aba3ef37f7d97ead55289bdb492189", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d0c143f2967dbdeb6dd11e6a1ae006477aba3ef37f7d97ead55289bdb492189", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d0c143f2967dbdeb6dd11e6a1ae006477aba3ef37f7d97ead55289bdb492189", kill_on_drop: false }`
[INFO] [stdout] 7d0c143f2967dbdeb6dd11e6a1ae006477aba3ef37f7d97ead55289bdb492189
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] c3cf1c1c81efa3483dd7bf0e59751cc8d0ee9a33e3f611326b643f95a4c75423
[INFO] running `Command { std: "docker" "start" "-a" "c3cf1c1c81efa3483dd7bf0e59751cc8d0ee9a33e3f611326b643f95a4c75423", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling escargot v0.4.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking predicates-core v1.0.0
[INFO] [stderr]     Checking siphasher v0.2.3
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]     Checking normalize-line-endings v0.2.2
[INFO] [stderr]     Checking miniz_oxide v0.3.5
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]    Compiling cargo-husky v1.4.0
[INFO] [stderr]     Checking phf_shared v0.7.24
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking predicates-tree v1.0.0
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking float-cmp v0.5.3
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking predicates v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling serde_derive v1.0.102
[INFO] [stderr]    Compiling calmio_filters v0.1.0
[INFO] [stderr]    Compiling structopt-derive v0.3.5
[INFO] [stderr]     Checking calm_io v0.1.1
[INFO] [stderr]     Checking structopt v0.3.5
[INFO] [stderr]     Checking licensor v2.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]  --> src/types.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct License {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 7 |     pub id: &'static str,
[INFO] [stdout]   |         ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> src/types.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Exception {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 14 |     pub id: &'static str,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 | /     /// SPDX license ID or expression
[INFO] [stdout] 47 | |     ///
[INFO] [stdout] 48 | |     /// WITH expressions are supported, i.e. "Apache-2.0 WITH LLVM-exception", just make sure to surround them with quotes.
[INFO] [stdout] 49 | |     #[structopt(name = "LICENSE", group = "actions")]
[INFO] [stdout] 50 | |     spdx_expr: Option<String>,
[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<String, Infallible>
[INFO] [stdout]   --> src/main.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 | /     /// Name of the copyright holder
[INFO] [stdout] 53 | |     ///
[INFO] [stdout] 54 | |     /// Will be used in the copyright notice in licenses where it is present.
[INFO] [stdout] 55 | |     /// Has no effect if the license has no copyright notice.
[INFO] [stdout] 56 | |     #[structopt(name = "NAME")]
[INFO] [stdout] 57 | |     copyright_holder: Option<String>,
[INFO] [stdout]    | |____________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `licensor` (bin "licensor") due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c3cf1c1c81efa3483dd7bf0e59751cc8d0ee9a33e3f611326b643f95a4c75423", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3cf1c1c81efa3483dd7bf0e59751cc8d0ee9a33e3f611326b643f95a4c75423", kill_on_drop: false }`
[INFO] [stdout] c3cf1c1c81efa3483dd7bf0e59751cc8d0ee9a33e3f611326b643f95a4c75423
