[INFO] fetching crate misu 0.1.0-alpha.0...
[INFO] building misu-0.1.0-alpha.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate misu 0.1.0-alpha.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate misu 0.1.0-alpha.0
[INFO] finished tweaking crates.io crate misu 0.1.0-alpha.0
[INFO] tweaked toml for crates.io crate misu 0.1.0-alpha.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate misu 0.1.0-alpha.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b55662f51dc78035ccfe8a966a4428a8a7f9946d0f88a7f111e6e920ac5a1334
[INFO] running `Command { std: "docker" "start" "-a" "b55662f51dc78035ccfe8a966a4428a8a7f9946d0f88a7f111e6e920ac5a1334", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b55662f51dc78035ccfe8a966a4428a8a7f9946d0f88a7f111e6e920ac5a1334", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b55662f51dc78035ccfe8a966a4428a8a7f9946d0f88a7f111e6e920ac5a1334", kill_on_drop: false }`
[INFO] [stdout] b55662f51dc78035ccfe8a966a4428a8a7f9946d0f88a7f111e6e920ac5a1334
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 740c20aad60f586a0c101e2631b07347abd74bbb7cf6e112a11cfebc1f1050ca
[INFO] running `Command { std: "docker" "start" "-a" "740c20aad60f586a0c101e2631b07347abd74bbb7cf6e112a11cfebc1f1050ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling misu v0.1.0-alpha.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/lib.rs:3:24
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct ValidStr<V>(Box<str>, PhantomData<V>);
[INFO] [stdout]   |            --------    ^^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 3 - pub struct ValidStr<V>(Box<str>, PhantomData<V>);
[INFO] [stdout] 3 + pub struct ValidStr<V>((), PhantomData<V>);
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "740c20aad60f586a0c101e2631b07347abd74bbb7cf6e112a11cfebc1f1050ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "740c20aad60f586a0c101e2631b07347abd74bbb7cf6e112a11cfebc1f1050ca", kill_on_drop: false }`
[INFO] [stdout] 740c20aad60f586a0c101e2631b07347abd74bbb7cf6e112a11cfebc1f1050ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9de1a1a710b67477dcdb9734c143c660b75a88db503b7d1766f6c6022da6fdd9
[INFO] running `Command { std: "docker" "start" "-a" "9de1a1a710b67477dcdb9734c143c660b75a88db503b7d1766f6c6022da6fdd9", kill_on_drop: false }`
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/lib.rs:3:24
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct ValidStr<V>(Box<str>, PhantomData<V>);
[INFO] [stdout]   |            --------    ^^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 3 - pub struct ValidStr<V>(Box<str>, PhantomData<V>);
[INFO] [stdout] 3 + pub struct ValidStr<V>((), PhantomData<V>);
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling misu v0.1.0-alpha.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/lib.rs:3:24
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct ValidStr<V>(Box<str>, PhantomData<V>);
[INFO] [stdout]   |            --------    ^^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 3 - pub struct ValidStr<V>(Box<str>, PhantomData<V>);
[INFO] [stdout] 3 + pub struct ValidStr<V>((), PhantomData<V>);
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "9de1a1a710b67477dcdb9734c143c660b75a88db503b7d1766f6c6022da6fdd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9de1a1a710b67477dcdb9734c143c660b75a88db503b7d1766f6c6022da6fdd9", kill_on_drop: false }`
[INFO] [stdout] 9de1a1a710b67477dcdb9734c143c660b75a88db503b7d1766f6c6022da6fdd9