[INFO] fetching crate stats-cli 1.0.0...
[INFO] checking stats-cli-1.0.0 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate stats-cli 1.0.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate stats-cli 1.0.0 on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stats-cli 1.0.0
[INFO] finished tweaking crates.io crate stats-cli 1.0.0
[INFO] tweaked toml for crates.io crate stats-cli 1.0.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1583c19d379777c3d03174c2238a4cd57ba01f26a61b28586188b9f5bdc0ad98
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1583c19d379777c3d03174c2238a4cd57ba01f26a61b28586188b9f5bdc0ad98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1583c19d379777c3d03174c2238a4cd57ba01f26a61b28586188b9f5bdc0ad98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1583c19d379777c3d03174c2238a4cd57ba01f26a61b28586188b9f5bdc0ad98", kill_on_drop: false }`
[INFO] [stdout] 1583c19d379777c3d03174c2238a4cd57ba01f26a61b28586188b9f5bdc0ad98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e57740d2fb38e45c00a6e001351ced1253476d89db695c11b1770b2f509d2f1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9e57740d2fb38e45c00a6e001351ced1253476d89db695c11b1770b2f509d2f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking order-stat v0.1.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking stats-cli v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:90:20
[INFO] [stdout]    |
[INFO] [stdout] 90 |     let input: Box<BufRead> = match matches.value_of("input") {
[INFO] [stdout]    |                    ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:101:25
[INFO] [stdout]     |
[INFO] [stdout] 101 |     let mut output: Box<Write> = match matches.value_of("output") {
[INFO] [stdout]     |                         ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:210:23
[INFO] [stdout]     |
[INFO] [stdout] 210 |         let vals: Box<Iterator<Item = f64>> =
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = f64>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:244:54
[INFO] [stdout]     |
[INFO] [stdout] 244 | fn write_tsv(results: &[(String, f64)], output: &mut Write) {
[INFO] [stdout]     |                                                      ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:250:55
[INFO] [stdout]     |
[INFO] [stdout] 250 | fn write_json(results: &[(String, f64)], output: &mut Write) {
[INFO] [stdout]     |                                                       ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:90:20
[INFO] [stdout]    |
[INFO] [stdout] 90 |     let input: Box<BufRead> = match matches.value_of("input") {
[INFO] [stdout]    |                    ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:101:25
[INFO] [stdout]     |
[INFO] [stdout] 101 |     let mut output: Box<Write> = match matches.value_of("output") {
[INFO] [stdout]     |                         ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:210:23
[INFO] [stdout]     |
[INFO] [stdout] 210 |         let vals: Box<Iterator<Item = f64>> =
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = f64>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:244:54
[INFO] [stdout]     |
[INFO] [stdout] 244 | fn write_tsv(results: &[(String, f64)], output: &mut Write) {
[INFO] [stdout]     |                                                      ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:250:55
[INFO] [stdout]     |
[INFO] [stdout] 250 | fn write_json(results: &[(String, f64)], output: &mut Write) {
[INFO] [stdout]     |                                                       ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.15s
[INFO] running `Command { std: "docker" "inspect" "9e57740d2fb38e45c00a6e001351ced1253476d89db695c11b1770b2f509d2f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e57740d2fb38e45c00a6e001351ced1253476d89db695c11b1770b2f509d2f1", kill_on_drop: false }`
[INFO] [stdout] 9e57740d2fb38e45c00a6e001351ced1253476d89db695c11b1770b2f509d2f1