[INFO] fetching crate r30_rs 0.1.0...
[INFO] building r30_rs-0.1.0 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] extracting crate r30_rs 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate r30_rs 0.1.0 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate r30_rs 0.1.0
[INFO] finished tweaking crates.io crate r30_rs 0.1.0
[INFO] tweaked toml for crates.io crate r30_rs 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate r30_rs 0.1.0 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6af3c8a0e6803435eaf904aaccdf765afacb0dbaffde0e2ae80d8f2e3ffd0f17
[INFO] running `Command { std: "docker" "start" "-a" "6af3c8a0e6803435eaf904aaccdf765afacb0dbaffde0e2ae80d8f2e3ffd0f17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6af3c8a0e6803435eaf904aaccdf765afacb0dbaffde0e2ae80d8f2e3ffd0f17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6af3c8a0e6803435eaf904aaccdf765afacb0dbaffde0e2ae80d8f2e3ffd0f17", kill_on_drop: false }`
[INFO] [stdout] 6af3c8a0e6803435eaf904aaccdf765afacb0dbaffde0e2ae80d8f2e3ffd0f17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88d8885902c18728df0d552d144ff644f3bba7e8bd8c6c6b190f3e25339e6731
[INFO] running `Command { std: "docker" "start" "-a" "88d8885902c18728df0d552d144ff644f3bba7e8bd8c6c6b190f3e25339e6731", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling getrandom v0.2.9
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling r30_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]    --> src/r30.rs:131:64
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn rand_choice<'a, T>(&'a mut self, xs: &'a Vec<T>) -> &T {
[INFO] [stdout]     |                        -- lifetime `'a` declared here          ^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.56s
[INFO] running `Command { std: "docker" "inspect" "88d8885902c18728df0d552d144ff644f3bba7e8bd8c6c6b190f3e25339e6731", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88d8885902c18728df0d552d144ff644f3bba7e8bd8c6c6b190f3e25339e6731", kill_on_drop: false }`
[INFO] [stdout] 88d8885902c18728df0d552d144ff644f3bba7e8bd8c6c6b190f3e25339e6731
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ebb0fc4fa0a03225dadcbc0403b006d3d17aca40bf9b4118b81c4032f9501a80
[INFO] running `Command { std: "docker" "start" "-a" "ebb0fc4fa0a03225dadcbc0403b006d3d17aca40bf9b4118b81c4032f9501a80", kill_on_drop: false }`
[INFO] [stderr]    Compiling r30_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]    --> src/r30.rs:131:64
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn rand_choice<'a, T>(&'a mut self, xs: &'a Vec<T>) -> &T {
[INFO] [stdout]     |                        -- lifetime `'a` declared here          ^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]    --> src/r30.rs:131:64
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn rand_choice<'a, T>(&'a mut self, xs: &'a Vec<T>) -> &T {
[INFO] [stdout]     |                        -- lifetime `'a` declared here          ^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `a` should have an upper case name
[INFO] [stdout]   --> src/lib.rs:60:15
[INFO] [stdout]    |
[INFO] [stdout] 60 |         const a: u64 = 1;
[INFO] [stdout]    |               ^ help: convert the identifier to upper case: `A`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `b` should have an upper case name
[INFO] [stdout]   --> src/lib.rs:61:15
[INFO] [stdout]    |
[INFO] [stdout] 61 |         const b: u64 = 100;
[INFO] [stdout]    |               ^ help: convert the identifier to upper case: `B`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "ebb0fc4fa0a03225dadcbc0403b006d3d17aca40bf9b4118b81c4032f9501a80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebb0fc4fa0a03225dadcbc0403b006d3d17aca40bf9b4118b81c4032f9501a80", kill_on_drop: false }`
[INFO] [stdout] ebb0fc4fa0a03225dadcbc0403b006d3d17aca40bf9b4118b81c4032f9501a80