[INFO] cloning repository https://github.com/gifnksm/ProjectEulerRust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gifnksm/ProjectEulerRust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgifnksm%2FProjectEulerRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgifnksm%2FProjectEulerRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ea81d59153676c7837cf1eb8faa3826fb92d1c52
[INFO] checking gifnksm/ProjectEulerRust against master#0c292c9667f1b202a9150d58bdd2e89e3e803996 for pr-92285
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgifnksm%2FProjectEulerRust" "/workspace/builds/worker-42/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-42/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gifnksm/ProjectEulerRust on toolchain 0c292c9667f1b202a9150d58bdd2e89e3e803996
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0c292c9667f1b202a9150d58bdd2e89e3e803996" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gifnksm/ProjectEulerRust
[INFO] finished tweaking git repo https://github.com/gifnksm/ProjectEulerRust
[INFO] tweaked toml for git repo https://github.com/gifnksm/ProjectEulerRust written to /workspace/builds/worker-42/source/Cargo.toml
[INFO] crate git repo https://github.com/gifnksm/ProjectEulerRust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0c292c9667f1b202a9150d58bdd2e89e3e803996" "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-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+0c292c9667f1b202a9150d58bdd2e89e3e803996" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 146a9a1b94139e5176c53a8591ff460c8454f474ac11c011b0556c7b2d09494b
[INFO] running `Command { std: "docker" "start" "-a" "146a9a1b94139e5176c53a8591ff460c8454f474ac11c011b0556c7b2d09494b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "146a9a1b94139e5176c53a8591ff460c8454f474ac11c011b0556c7b2d09494b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "146a9a1b94139e5176c53a8591ff460c8454f474ac11c011b0556c7b2d09494b", kill_on_drop: false }`
[INFO] [stdout] 146a9a1b94139e5176c53a8591ff460c8454f474ac11c011b0556c7b2d09494b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+0c292c9667f1b202a9150d58bdd2e89e3e803996" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5f97c7a2b53a7caea5cf197988f4cc7f2d1dcd876e9922564a9cca27edf8e5d
[INFO] running `Command { std: "docker" "start" "-a" "e5f97c7a2b53a7caea5cf197988f4cc7f2d1dcd876e9922564a9cca27edf8e5d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling openssl v0.10.34
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking gimli v0.24.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking object v0.24.0
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking rustc-demangle v0.1.19
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking wildmatch v1.1.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking playing_card v0.0.1 (/opt/rustwide/workdir/pkg/playing_card)
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking union-find v0.3.2
[INFO] [stderr]     Checking topological-sort v0.1.0
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling backtrace v0.3.59
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling openssl-sys v0.9.63
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking unicode-normalization v0.1.17
[INFO] [stderr]     Checking addr2line v0.15.1
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking iter v0.0.1 (/opt/rustwide/workdir/pkg/iter)
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking polynomial v0.1.0
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking generic-matrix v0.1.0
[INFO] [stderr]     Checking term v0.7.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking prime v0.0.1 (/opt/rustwide/workdir/pkg/prime)
[INFO] [stderr]     Checking seq v0.0.1 (/opt/rustwide/workdir/pkg/seq)
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]     Checking integer v0.0.1 (/opt/rustwide/workdir/pkg/integer)
[INFO] [stderr]     Checking cont_frac v0.0.1 (/opt/rustwide/workdir/pkg/cont_frac)
[INFO] [stderr]     Checking attohttpc v0.17.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling derive-try-from-primitive v1.0.0
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking serde v1.0.125
[INFO] [stderr]     Checking ProjectEulerRust v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/bin/p088.rs:32:34
[INFO] [stdout]    |
[INFO] [stdout] 32 |         for n in min_n..prod_end.div_ceil(&prod_base) {
[INFO] [stdout]    |                                  ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = help: call with fully qualified syntax `num_integer::Integer::div_ceil(...)` to keep using the current method
[INFO] [stdout]    = help: add `#![feature(int_roundings)]` to the crate attributes to enable `core::num::<impl u32>::div_ceil`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/bin/p088.rs:32:34
[INFO] [stdout]    |
[INFO] [stdout] 32 |         for n in min_n..prod_end.div_ceil(&prod_base) {
[INFO] [stdout]    |                                  ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = help: call with fully qualified syntax `num_integer::Integer::div_ceil(...)` to keep using the current method
[INFO] [stdout]    = help: add `#![feature(int_roundings)]` to the crate attributes to enable `core::num::<impl u32>::div_ceil`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 58s
[INFO] running `Command { std: "docker" "inspect" "e5f97c7a2b53a7caea5cf197988f4cc7f2d1dcd876e9922564a9cca27edf8e5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5f97c7a2b53a7caea5cf197988f4cc7f2d1dcd876e9922564a9cca27edf8e5d", kill_on_drop: false }`
[INFO] [stdout] e5f97c7a2b53a7caea5cf197988f4cc7f2d1dcd876e9922564a9cca27edf8e5d