[INFO] fetching crate f_log 0.1.7...
[INFO] checking f_log-0.1.7 against try#38c2997544af84fe301d600d6896397738163002 for pr-154205-1
[INFO] extracting crate f_log 0.1.7 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate f_log 0.1.7
[INFO] finished tweaking crates.io crate f_log 0.1.7
[INFO] tweaked toml for crates.io crate f_log 0.1.7 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate f_log 0.1.7 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] crate crates.io crate f_log 0.1.7 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" "+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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 90f9a25a93ba203cb107548b8d13ccc325f2574422ee680707ce58b0d0a3c848
[INFO] running `Command { std: "docker" "start" "-a" "90f9a25a93ba203cb107548b8d13ccc325f2574422ee680707ce58b0d0a3c848", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "90f9a25a93ba203cb107548b8d13ccc325f2574422ee680707ce58b0d0a3c848", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90f9a25a93ba203cb107548b8d13ccc325f2574422ee680707ce58b0d0a3c848", kill_on_drop: false }`
[INFO] [stdout] 90f9a25a93ba203cb107548b8d13ccc325f2574422ee680707ce58b0d0a3c848
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] e7ded1ee36233c47e4a93fbca3ee519bfa627ad06e6085c0e9e66cbf88102a3b
[INFO] running `Command { std: "docker" "start" "-a" "e7ded1ee36233c47e4a93fbca3ee519bfa627ad06e6085c0e9e66cbf88102a3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]     Checking iana-time-zone v0.1.63
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking crossbeam-channel v0.5.15
[INFO] [stderr]     Checking crossbeam-queue v0.3.12
[INFO] [stderr]     Checking chrono v0.4.41
[INFO] [stderr]     Checking f_log v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> src/lib.rs:72:17
[INFO] [stdout]    |
[INFO] [stdout] 72 |             let msg = match info.payload().downcast_ref::<&str>() {
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] [FMTARGS] {"crate":"f_log","loc":"src/lib.rs:232:25","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: `location`
[INFO] [stdout]   --> src/lib.rs:77:25
[INFO] [stdout]    |
[INFO] [stdout] 77 |             if let Some(location) = info.location() {
[INFO] [stdout]    |                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_location`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] [FMTARGS] {"crate":"f_log","loc":"src/lib.rs:327:60","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":"f_log","loc":"src/lib.rs:331:40","p":3,"ph":3,"wa":0,"pa":0,"a":3,"pos":3,"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":3,"a_opt":3,"sz_no_dedup":48,"sz_old":48,"sz_opt":48}
[INFO] [stderr] [FMTARGS] {"crate":"f_log","loc":"src/lib.rs:404:48","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":"f_log","loc":"src/lib.rs:406:44","p":3,"ph":3,"wa":0,"pa":0,"a":3,"pos":3,"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":3,"a_opt":3,"sz_no_dedup":48,"sz_old":48,"sz_opt":48}
[INFO] [stderr] [FMTARGS] {"crate":"f_log","loc":"src/lib.rs:256:31","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":"f_log","loc":"src/lib.rs:258:32","p":3,"ph":3,"wa":0,"pa":0,"a":3,"pos":3,"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":3,"a_opt":3,"sz_no_dedup":48,"sz_old":48,"sz_opt":48}
[INFO] [stderr] [FMTARGS] {"crate":"f_log","loc":"src/lib.rs:232:25","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":"f_log","loc":"src/lib.rs:327:60","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":"f_log","loc":"src/lib.rs:331:40","p":3,"ph":3,"wa":0,"pa":0,"a":3,"pos":3,"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":3,"a_opt":3,"sz_no_dedup":48,"sz_old":48,"sz_opt":48}
[INFO] [stderr] [FMTARGS] {"crate":"f_log","loc":"src/lib.rs:404:48","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":"f_log","loc":"src/lib.rs:406:44","p":3,"ph":3,"wa":0,"pa":0,"a":3,"pos":3,"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":3,"a_opt":3,"sz_no_dedup":48,"sz_old":48,"sz_opt":48}
[INFO] [stderr] [FMTARGS] {"crate":"f_log","loc":"src/lib.rs:256:31","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":"f_log","loc":"src/lib.rs:258:32","p":3,"ph":3,"wa":0,"pa":0,"a":3,"pos":3,"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":3,"a_opt":3,"sz_no_dedup":48,"sz_old":48,"sz_opt":48}
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> src/lib.rs:72:17
[INFO] [stdout]    |
[INFO] [stdout] 72 |             let msg = match info.payload().downcast_ref::<&str>() {
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.94s
[INFO] [stdout] warning: unused variable: `location`
[INFO] [stdout]   --> src/lib.rs:77:25
[INFO] [stdout]    |
[INFO] [stdout] 77 |             if let Some(location) = info.location() {
[INFO] [stdout]    |                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_location`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e7ded1ee36233c47e4a93fbca3ee519bfa627ad06e6085c0e9e66cbf88102a3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7ded1ee36233c47e4a93fbca3ee519bfa627ad06e6085c0e9e66cbf88102a3b", kill_on_drop: false }`
[INFO] [stdout] e7ded1ee36233c47e4a93fbca3ee519bfa627ad06e6085c0e9e66cbf88102a3b