[INFO] fetching crate soprintln 3.2.1...
[INFO] checking soprintln-3.2.1 against try#38c2997544af84fe301d600d6896397738163002 for pr-154205-1
[INFO] extracting crate soprintln 3.2.1 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate soprintln 3.2.1
[INFO] finished tweaking crates.io crate soprintln 3.2.1
[INFO] tweaked toml for crates.io crate soprintln 3.2.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate soprintln 3.2.1 on toolchain 38c2997544af84fe301d600d6896397738163002
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38c2997544af84fe301d600d6896397738163002" "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" "+38c2997544af84fe301d600d6896397738163002" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38c2997544af84fe301d600d6896397738163002" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+38c2997544af84fe301d600d6896397738163002" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4669929adacba709d8f14dc71a78b2b54885f4ee49e77130c34ef2d18fcb58d0
[INFO] running `Command { std: "docker" "start" "-a" "4669929adacba709d8f14dc71a78b2b54885f4ee49e77130c34ef2d18fcb58d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4669929adacba709d8f14dc71a78b2b54885f4ee49e77130c34ef2d18fcb58d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4669929adacba709d8f14dc71a78b2b54885f4ee49e77130c34ef2d18fcb58d0", kill_on_drop: false }`
[INFO] [stdout] 4669929adacba709d8f14dc71a78b2b54885f4ee49e77130c34ef2d18fcb58d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+38c2997544af84fe301d600d6896397738163002" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c04abe5ce306e4a2465c412adf0ef86715ceb3c0dec92f5d83820935684c4737
[INFO] running `Command { std: "docker" "start" "-a" "c04abe5ce306e4a2465c412adf0ef86715ceb3c0dec92f5d83820935684c4737", kill_on_drop: false }`
[INFO] [stderr]     Checking soprintln v3.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] [FMTARGS] {"crate":"soprintln","loc":"src/lib.rs:187:16","p":9,"ph":8,"wa":0,"pa":0,"a":8,"pos":8,"named":0,"cap":0,"ucap":0,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":8,"a_opt":8,"sz_no_dedup":128,"sz_old":128,"sz_opt":128}
[INFO] [stderr] [FMTARGS] {"crate":"soprintln","loc":"src/lib.rs:200:16","p":8,"ph":7,"wa":0,"pa":0,"a":7,"pos":7,"named":0,"cap":0,"ucap":0,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":7,"a_opt":7,"sz_no_dedup":112,"sz_old":112,"sz_opt":112}
[INFO] [stderr] [FMTARGS] {"crate":"soprintln","loc":"src/lib.rs:20:57","p":0,"ph":1,"wa":0,"pa":0,"a":1,"pos":1,"named":0,"cap":0,"ucap":0,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":1,"a_opt":1,"sz_no_dedup":16,"sz_old":16,"sz_opt":16}
[INFO] [stderr] [FMTARGS] {"crate":"soprintln","loc":"src/lib.rs:20:57","p":0,"ph":1,"wa":0,"pa":0,"a":1,"pos":1,"named":0,"cap":0,"ucap":0,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":1,"a_opt":1,"sz_no_dedup":16,"sz_old":16,"sz_opt":16}
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/lib.rs:220:17
[INFO] [stdout]     |
[INFO] [stdout] 220 |             let b = Beacon::new("test", 0x12345678 + i);
[INFO] [stdout]     |                 ^
[INFO] [stdout] 221 |             soprintln!("{b}");
[INFO] [stdout]     |                        ----- you might have meant to use string interpolation in this string literal
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: string interpolation only works in `format!` invocations
[INFO] [stdout]     |
[INFO] [stdout] 221 |             soprintln!(format!("{b}"));
[INFO] [stdout]     |                        ++++++++     +
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 220 |             let _b = Beacon::new("test", 0x12345678 + i);
[INFO] [stdout]     |                 +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] [FMTARGS] {"crate":"soprintln","loc":"src/lib.rs:187:16","p":9,"ph":8,"wa":0,"pa":0,"a":8,"pos":8,"named":0,"cap":0,"ucap":0,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":8,"a_opt":8,"sz_no_dedup":128,"sz_old":128,"sz_opt":128}
[INFO] [stderr] [FMTARGS] {"crate":"soprintln","loc":"src/lib.rs:200:16","p":8,"ph":7,"wa":0,"pa":0,"a":7,"pos":7,"named":0,"cap":0,"ucap":0,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":7,"a_opt":7,"sz_no_dedup":112,"sz_old":112,"sz_opt":112}
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "c04abe5ce306e4a2465c412adf0ef86715ceb3c0dec92f5d83820935684c4737", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c04abe5ce306e4a2465c412adf0ef86715ceb3c0dec92f5d83820935684c4737", kill_on_drop: false }`
[INFO] [stdout] c04abe5ce306e4a2465c412adf0ef86715ceb3c0dec92f5d83820935684c4737